All airlines flying from Seattle-Tacoma (SEA) to London Heathrow (LHR).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Sat 13:50 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Alaska Airlines AS 5272 Non-stop Boeing 777 (777) 9:20 Valid until 2024-10-19
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 13:50 Seattle-Tacoma (SEA) 06:10 London Heathrow (LHR) 5
Alaska Airlines AS 5272 Non-stop Boeing 777 (777) 9:20 Operates only on 2024-10-26
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 13:50 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Alaska Airlines AS 5272 Non-stop Boeing 777 (777) 9:20 Effective from 2025-04-05
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Tue 14:35 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Alaska Airlines AS 5272 Non-stop Boeing 787 (787) 9:25 Operates only on 2024-10-29
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Tue 14:35 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Alaska Airlines AS 5272 Non-stop Boeing 787 (787) 9:25 Effective 2025-03-11 through 2025-03-25
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Fri 14:45 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Alaska Airlines AS 5272 Non-stop Boeing 787 (787) 9:25 Operates only on 2024-11-01
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 14:45 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Alaska Airlines AS 5272 Non-stop Boeing 787-9 (789) 9:25 Operates only on 2024-11-02
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Fri,Sat 14:45 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Alaska Airlines AS 5272 Non-stop Boeing 787 (787) 9:25 Effective 2025-03-14 through 2025-03-28
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 14:45 Seattle-Tacoma (SEA) 08:10 London Heathrow (LHR) 5
Alaska Airlines AS 5272 Non-stop Boeing 787 (787) 9:25 Operates only on 2025-03-29
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Daily 18:50 Seattle-Tacoma (SEA) 12:15 London Heathrow (LHR) 5
Finnair AY 5448 Non-stop Boeing 787-10 (781) 9:25 Effective 2024-11-03 through 2025-02-03
Codeshare flight, operated by British Airways.(BA 48)
The flight arrives 1 day after departure.
Daily 18:50 Seattle-Tacoma (SEA) 12:15 London Heathrow (LHR) 5
Finnair AY 5448 Non-stop Boeing 787-10 (781) 9:25 Effective 2025-02-05 through 2025-02-17
Codeshare flight, operated by British Airways.(BA 48)
The flight arrives 1 day after departure.
Daily 18:50 Seattle-Tacoma (SEA) 12:15 London Heathrow (LHR) 5
Finnair AY 5448 Non-stop Boeing 787-10 (781) 9:25 Effective 2025-02-19 through 2025-03-08
Codeshare flight, operated by British Airways.(BA 48)
The flight arrives 1 day after departure.
Daily 19:40 Seattle-Tacoma (SEA) 13:00 London Heathrow (LHR) 5
Finnair AY 5448 Non-stop Boeing 787-10 (781) 9:20 Valid until 2024-10-22
Codeshare flight, operated by British Airways.(BA 48)
The flight arrives 1 day after departure.
Wed 19:40 Seattle-Tacoma (SEA) 13:00 London Heathrow (LHR) 5
Finnair AY 5448 Non-stop Boeing 787-9 (789) 9:20 Operates only on 2024-10-23
Codeshare flight, operated by British Airways.(BA 48)
The flight arrives 1 day after departure.
Thu,Fri 19:40 Seattle-Tacoma (SEA) 13:00 London Heathrow (LHR) 5
Finnair AY 5448 Non-stop Boeing 787-10 (781) 9:20 Effective 2024-10-24 through 2024-10-25
Codeshare flight, operated by British Airways.(BA 48)
The flight arrives 1 day after departure.
Sat 19:40 Seattle-Tacoma (SEA) 13:00 London Heathrow (LHR) 5
Finnair AY 5448 Non-stop Boeing 777 (777) 9:20 Operates only on 2025-03-29
Codeshare flight, operated by British Airways.(BA 48)
The flight arrives 1 day after departure.
Daily 19:40 Seattle-Tacoma (SEA) 13:00 London Heathrow (LHR) 5
Finnair AY 5448 Non-stop Boeing 787-10 (781) 9:20 Effective from 2025-03-30
Codeshare flight, operated by British Airways.(BA 48)
The flight arrives 1 day after departure.
Daily 19:50 Seattle-Tacoma (SEA) 12:15 London Heathrow (LHR) 5
Finnair AY 5448 Non-stop Boeing 787-10 (781) 9:25 Effective 2024-10-26 through 2024-11-02
Codeshare flight, operated by British Airways.(BA 48)
The flight arrives 1 day after departure.
Daily 19:50 Seattle-Tacoma (SEA) 12:15 London Heathrow (LHR) 5
Finnair AY 5448 Non-stop Boeing 787-10 (781) 9:25 Effective 2025-03-09 through 2025-03-28
Codeshare flight, operated by British Airways.(BA 48)
The flight arrives 1 day after departure.
Mon-Fri 13:30 Seattle-Tacoma (SEA) 06:50 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777-300ER (77W) 9:20 Effective 2024-09-02 through 2024-09-27
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Mon-Fri 13:30 Seattle-Tacoma (SEA) 06:50 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777 (777) 9:20 Effective 2024-09-30 through 2024-10-23
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Thu,Fri 13:30 Seattle-Tacoma (SEA) 06:50 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777-300ER (77W) 9:20 Effective 2024-10-24 through 2024-10-25
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Mon-Fri 13:30 Seattle-Tacoma (SEA) 06:50 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777 (777) 9:20 Effective from 2025-03-31
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Tue 13:35 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 787-10 (781) 9:25 Effective 2024-11-05 through 2024-12-03
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Tue 13:35 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 787-10 (781) 9:25 Effective 2024-12-17 through 2025-01-21
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Tue 13:35 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 787-10 (781) 9:25 Effective 2025-02-04 through 2025-03-04
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sun 13:40 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777-300ER (77W) 9:20 Valid until 2024-09-22
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sun 13:40 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777 (777) 9:20 Effective 2024-09-29 through 2024-10-13
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sun 13:40 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777-300ER (77W) 9:20 Operates only on 2024-10-20
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sun 13:40 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777 (777) 9:20 Effective from 2025-03-30
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Fri,Sat 13:45 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 787-10 (781) 9:25 Effective 2024-11-08 through 2025-03-08
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 13:50 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777-300ER (77W) 9:20 Effective 2024-09-07 through 2024-09-28
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 13:50 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777 (777) 9:20 Effective 2024-10-05 through 2024-10-12
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 13:50 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777-300ER (77W) 9:20 Operates only on 2024-10-19
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 13:50 Seattle-Tacoma (SEA) 06:10 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777-300ER (77W) 9:20 Operates only on 2024-10-26
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 13:50 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 777 (777) 9:20 Effective from 2025-04-05
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Tue 14:35 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 787-10 (781) 9:25 Operates only on 2024-10-29
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Tue 14:35 Seattle-Tacoma (SEA) 07:00 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 787-10 (781) 9:25 Effective 2025-03-11 through 2025-03-25
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Fri 14:45 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 787-10 (781) 9:25 Operates only on 2024-11-01
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 14:45 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 787-9 (789) 9:25 Operates only on 2024-11-02
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Fri,Sat 14:45 Seattle-Tacoma (SEA) 07:10 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 787-10 (781) 9:25 Effective 2025-03-14 through 2025-03-28
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Sat 14:45 Seattle-Tacoma (SEA) 08:10 London Heathrow (LHR) 5
Finnair AY 5450 Non-stop Boeing 787-10 (781) 9:25 Operates only on 2025-03-29
Codeshare flight, operated by British Airways.(BA 52)
The flight arrives 1 day after departure.
Daily 15:50 Seattle-Tacoma (SEA) 09:10 London Heathrow (LHR) 3
Delta Air Lines DL 5974 Non-stop Boeing 787-9 (789) 9:20 Effective from 2025-03-30
Codeshare flight, operated by Virgin Atlantic.(VS 106)
The flight arrives 1 day after departure.
Daily 16:30 Seattle-Tacoma (SEA) 09:50 London Heathrow (LHR) 3
Delta Air Lines DL 5974 Non-stop Boeing 787-9 (789) 9:20 Valid until 2024-10-25
Codeshare flight, operated by Virgin Atlantic.(VS 106)
The flight arrives 1 day after departure.
Daily 17:45 Seattle-Tacoma (SEA) 11:10 London Heathrow (LHR) 3
Delta Air Lines DL 5974 Non-stop Boeing 787-9 (789) 9:25 Effective 2024-11-03 through 2024-12-24
Codeshare flight, operated by Virgin Atlantic.(VS 106)
The flight arrives 1 day after departure.
Mon-Thu,Sat,Sun 17:45 Seattle-Tacoma (SEA) 11:10 London Heathrow (LHR) 3
Delta Air Lines DL 5974 Non-stop Boeing 787-9 (789) 9:25 Effective 2024-12-26 through 2025-01-02
Codeshare flight, operated by Virgin Atlantic.(VS 106)
The flight arrives 1 day after departure.
Daily 17:45 Seattle-Tacoma (SEA) 11:10 London Heathrow (LHR) 3
Delta Air Lines DL 5974 Non-stop Boeing 787-9 (789) 9:25 Effective 2025-01-03 through 2025-01-15
Codeshare flight, operated by Virgin Atlantic.(VS 106)
The flight arrives 1 day after departure.
Tue-Sun 17:45 Seattle-Tacoma (SEA) 11:10 London Heathrow (LHR) 3
Delta Air Lines DL 5974 Non-stop Boeing 787-9 (789) 9:25 Effective 2025-01-17 through 2025-01-26
Codeshare flight, operated by Virgin Atlantic.(VS 106)
The flight arrives 1 day after departure.
Mon,Wed-Sun 17:45 Seattle-Tacoma (SEA) 11:10 London Heathrow (LHR) 3
Delta Air Lines DL 5974 Non-stop Boeing 787-9 (789) 9:25 Effective 2025-01-27 through 2025-02-03
Codeshare flight, operated by Virgin Atlantic.(VS 106)
The flight arrives 1 day after departure.
Daily 17:45 Seattle-Tacoma (SEA) 11:10 London Heathrow (LHR) 3
Delta Air Lines DL 5974 Non-stop Boeing 787-9 (789) 9:25 Effective 2025-02-04 through 2025-03-08
Codeshare flight, operated by Virgin Atlantic.(VS 106)
The flight arrives 1 day after departure.
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All airlines flying from Seattle-Tacoma (SEA) to London Heathrow (LHR).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS5272
13:50
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Valid until 2024-10-19
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.
Alaska Airlines AS5272
13:50
Seattle-Tacoma (SEA)

06:10(+1)
London Heathrow (LHR) 5
Operates only on 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.
Alaska Airlines AS5272
13:50
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Effective from 2025-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.
Alaska Airlines AS5272
14:35
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Operates only on 2024-10-29
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787 (787)
The flight arrives 1 day after departure.
Alaska Airlines AS5272
14:35
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Effective 2025-03-11 through 2025-03-25
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787 (787)
The flight arrives 1 day after departure.
Alaska Airlines AS5272
14:45
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Operates only on 2024-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787 (787)
The flight arrives 1 day after departure.
Alaska Airlines AS5272
14:45
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Operates only on 2024-11-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Alaska Airlines AS5272
14:45
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Effective 2025-03-14 through 2025-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787 (787)
The flight arrives 1 day after departure.
Alaska Airlines AS5272
14:45
Seattle-Tacoma (SEA)

08:10(+1)
London Heathrow (LHR) 5
Operates only on 2025-03-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787 (787)
The flight arrives 1 day after departure.
Finnair AY5448
18:50
Seattle-Tacoma (SEA)

12:15(+1)
London Heathrow (LHR) 5
Effective 2024-11-03 through 2025-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways. (BA 48)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5448
18:50
Seattle-Tacoma (SEA)

12:15(+1)
London Heathrow (LHR) 5
Effective 2025-02-05 through 2025-02-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways. (BA 48)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5448
18:50
Seattle-Tacoma (SEA)

12:15(+1)
London Heathrow (LHR) 5
Effective 2025-02-19 through 2025-03-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways. (BA 48)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5448
19:40
Seattle-Tacoma (SEA)

13:00(+1)
London Heathrow (LHR) 5
Valid until 2024-10-22
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways. (BA 48)
Duration: 9:20, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5448
19:40
Seattle-Tacoma (SEA)

13:00(+1)
London Heathrow (LHR) 5
Operates only on 2024-10-23
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 48)
Duration: 9:20, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Finnair AY5448
19:40
Seattle-Tacoma (SEA)

13:00(+1)
London Heathrow (LHR) 5
Effective 2024-10-24 through 2024-10-25
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 48)
Duration: 9:20, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5448
19:40
Seattle-Tacoma (SEA)

13:00(+1)
London Heathrow (LHR) 5
Operates only on 2025-03-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 48)
Duration: 9:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.
Finnair AY5448
19:40
Seattle-Tacoma (SEA)

13:00(+1)
London Heathrow (LHR) 5
Effective from 2025-03-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways. (BA 48)
Duration: 9:20, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5448
19:50
Seattle-Tacoma (SEA)

12:15(+1)
London Heathrow (LHR) 5
Effective 2024-10-26 through 2024-11-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways. (BA 48)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5448
19:50
Seattle-Tacoma (SEA)

12:15(+1)
London Heathrow (LHR) 5
Effective 2025-03-09 through 2025-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways. (BA 48)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5450
13:30
Seattle-Tacoma (SEA)

06:50(+1)
London Heathrow (LHR) 5
Effective 2024-09-02 through 2024-09-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
Finnair AY5450
13:30
Seattle-Tacoma (SEA)

06:50(+1)
London Heathrow (LHR) 5
Effective 2024-09-30 through 2024-10-23
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.
Finnair AY5450
13:30
Seattle-Tacoma (SEA)

06:50(+1)
London Heathrow (LHR) 5
Effective 2024-10-24 through 2024-10-25
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
Finnair AY5450
13:30
Seattle-Tacoma (SEA)

06:50(+1)
London Heathrow (LHR) 5
Effective from 2025-03-31
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.
Finnair AY5450
13:35
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Effective 2024-11-05 through 2024-12-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5450
13:35
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Effective 2024-12-17 through 2025-01-21
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5450
13:35
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Effective 2025-02-04 through 2025-03-04
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5450
13:40
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Valid until 2024-09-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
Finnair AY5450
13:40
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Effective 2024-09-29 through 2024-10-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.
Finnair AY5450
13:40
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Operates only on 2024-10-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
Finnair AY5450
13:40
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Effective from 2025-03-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.
Finnair AY5450
13:45
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Effective 2024-11-08 through 2025-03-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5450
13:50
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Effective 2024-09-07 through 2024-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
Finnair AY5450
13:50
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Effective 2024-10-05 through 2024-10-12
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.
Finnair AY5450
13:50
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Operates only on 2024-10-19
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
Finnair AY5450
13:50
Seattle-Tacoma (SEA)

06:10(+1)
London Heathrow (LHR) 5
Operates only on 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
Finnair AY5450
13:50
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Effective from 2025-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.
Finnair AY5450
14:35
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Operates only on 2024-10-29
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5450
14:35
Seattle-Tacoma (SEA)

07:00(+1)
London Heathrow (LHR) 5
Effective 2025-03-11 through 2025-03-25
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5450
14:45
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Operates only on 2024-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5450
14:45
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Operates only on 2024-11-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Finnair AY5450
14:45
Seattle-Tacoma (SEA)

07:10(+1)
London Heathrow (LHR) 5
Effective 2025-03-14 through 2025-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Finnair AY5450
14:45
Seattle-Tacoma (SEA)

08:10(+1)
London Heathrow (LHR) 5
Operates only on 2025-03-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by British Airways. (BA 52)
Duration: 9:25, non-stop
Boeing 787-10 (781)
The flight arrives 1 day after departure.
Delta Air Lines DL5974
15:50
Seattle-Tacoma (SEA)

09:10(+1)
London Heathrow (LHR) 3
Effective from 2025-03-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Virgin Atlantic. (VS 106)
Duration: 9:20, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Delta Air Lines DL5974
16:30
Seattle-Tacoma (SEA)

09:50(+1)
London Heathrow (LHR) 3
Valid until 2024-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Virgin Atlantic. (VS 106)
Duration: 9:20, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Delta Air Lines DL5974
17:45
Seattle-Tacoma (SEA)

11:10(+1)
London Heathrow (LHR) 3
Effective 2024-11-03 through 2024-12-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Virgin Atlantic. (VS 106)
Duration: 9:25, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Delta Air Lines DL5974
17:45
Seattle-Tacoma (SEA)

11:10(+1)
London Heathrow (LHR) 3
Effective 2024-12-26 through 2025-01-02
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Virgin Atlantic. (VS 106)
Duration: 9:25, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Delta Air Lines DL5974
17:45
Seattle-Tacoma (SEA)

11:10(+1)
London Heathrow (LHR) 3
Effective 2025-01-03 through 2025-01-15
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Virgin Atlantic. (VS 106)
Duration: 9:25, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Delta Air Lines DL5974
17:45
Seattle-Tacoma (SEA)

11:10(+1)
London Heathrow (LHR) 3
Effective 2025-01-17 through 2025-01-26
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Virgin Atlantic. (VS 106)
Duration: 9:25, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Delta Air Lines DL5974
17:45
Seattle-Tacoma (SEA)

11:10(+1)
London Heathrow (LHR) 3
Effective 2025-01-27 through 2025-02-03
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Virgin Atlantic. (VS 106)
Duration: 9:25, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Delta Air Lines DL5974
17:45
Seattle-Tacoma (SEA)

11:10(+1)
London Heathrow (LHR) 3
Effective 2025-02-04 through 2025-03-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Virgin Atlantic. (VS 106)
Duration: 9:25, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
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  • An international route departing from Seattle-Tacoma airport, United States (SEA) and arriving at London Heathrow airport, United Kingdom (LHR).
  • The flight distance is 4783 miles, or 7697 km.
  • The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC+0 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 9:20 and 9:45.
Return (LHR-SEA) flights
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