Delta Air Lines flights from Seattle-Tacoma (SEA) to Boston Logan (BOS).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 07:20 Seattle-Tacoma (SEA) 15:59 Boston Logan (BOS) A
Delta Air Lines DL 459 Non-stop Airbus A321neo (32Q) 5:39 Effective 2025-07-07 through 2025-09-07
Daily 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A
Delta Air Lines DL 459 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-08 through 2025-12-19
Daily 07:20 Seattle-Tacoma (SEA) 15:50 Boston Logan (BOS) A
Delta Air Lines DL 459 Non-stop Airbus A321neo (32Q) 5:30 Effective from 2026-01-06
Daily 07:25 Seattle-Tacoma (SEA) 16:00 Boston Logan (BOS) A
Delta Air Lines DL 459 Non-stop Airbus A321neo (32Q) 5:35 Effective 2025-05-07 through 2025-06-07
Daily 07:35 Seattle-Tacoma (SEA) 16:07 Boston Logan (BOS) A
Delta Air Lines DL 459 Non-stop Airbus A321neo (32Q) 5:32 Valid until 2025-05-06
Daily 07:40 Seattle-Tacoma (SEA) 16:16 Boston Logan (BOS) A
Delta Air Lines DL 459 Non-stop Airbus A321neo (32Q) 5:36 Effective 2025-12-20 through 2026-01-05
Daily 07:50 Seattle-Tacoma (SEA) 16:27 Boston Logan (BOS) A
Delta Air Lines DL 459 Non-stop Airbus A321neo (32Q) 5:37 Effective 2025-06-08 through 2025-07-06
Daily 22:00 Seattle-Tacoma (SEA) 06:31 Boston Logan (BOS) A
Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:31 Effective 2025-07-07 through 2025-09-07
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A
Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-08 through 2025-10-31
The flight arrives 1 day after departure.
Sat 22:00 Seattle-Tacoma (SEA) 05:34 Boston Logan (BOS) A
Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:34 Operates only on 2025-11-01
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A
Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-11-02 through 2025-12-19
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:32 Boston Logan (BOS) A
Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:32 Effective from 2026-01-06
The flight arrives 1 day after departure.
Daily 22:05 Seattle-Tacoma (SEA) 06:31 Boston Logan (BOS) A
Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:26 Valid until 2025-05-05
The flight arrives 1 day after departure.
Tue 22:05 Seattle-Tacoma (SEA) 06:30 Boston Logan (BOS) A
Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:25 Operates only on 2025-05-06
The flight arrives 1 day after departure.
Daily 22:11 Seattle-Tacoma (SEA) 06:40 Boston Logan (BOS) A
Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:29 Effective 2025-05-07 through 2025-06-07
The flight arrives 1 day after departure.
Daily 22:15 Seattle-Tacoma (SEA) 06:40 Boston Logan (BOS) A
Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:25 Effective 2025-06-08 through 2025-07-06
The flight arrives 1 day after departure.
Daily 23:35 Seattle-Tacoma (SEA) 08:03 Boston Logan (BOS) A
Delta Air Lines DL 473 Non-stop Airbus A321neo (32Q) 5:28 Effective 2025-12-20 through 2026-01-05
The flight arrives 1 day after departure.
Mon-Fri,Sun 15:20 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) A
Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-08-11 through 2025-08-29
Mon-Fri,Sun 15:20 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) A
Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-01 through 2025-09-07
Daily 15:20 Seattle-Tacoma (SEA) 23:44 Boston Logan (BOS) A
Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:24 Effective 2025-09-08 through 2025-12-19
Mon-Fri,Sun 15:30 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) A
Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:29 Effective 2025-07-07 through 2025-08-10
Mon,Wed-Fri,Sun 15:35 Seattle-Tacoma (SEA) 23:53 Boston Logan (BOS) A
Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:18 Valid until 2025-05-05
Mon-Fri,Sun 15:37 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) A
Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:22 Effective 2025-05-07 through 2025-05-23
Mon-Fri,Sun 15:37 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) A
Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:22 Effective 2025-05-26 through 2025-06-06
Mon-Fri,Sun 15:50 Seattle-Tacoma (SEA) 00:15 Boston Logan (BOS) A
Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:25 Effective 2025-06-08 through 2025-07-03
The flight arrives 1 day after departure.
Sun 15:50 Seattle-Tacoma (SEA) 00:15 Boston Logan (BOS) A
Delta Air Lines DL 474 Non-stop Airbus A321neo (32Q) 5:25 Operates only on 2025-07-06
The flight arrives 1 day after departure.
Wed 23:05 Seattle-Tacoma (SEA) 07:25 Boston Logan (BOS) A
Delta Air Lines DL 8817 Non-stop Airbus A330-900neo (339) 5:20 Operates only on 2025-05-21
The flight arrives 1 day after departure.




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Delta Air Lines flights from Seattle-Tacoma (SEA) to Boston Logan (BOS).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Delta Air Lines DL459
07:20
Seattle-Tacoma (SEA)

15:59
Boston Logan (BOS) A
Effective 2025-07-07 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:39, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL459
07:20
Seattle-Tacoma (SEA)

15:54
Boston Logan (BOS) A
Effective 2025-09-08 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:34, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL459
07:20
Seattle-Tacoma (SEA)

15:50
Boston Logan (BOS) A
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:30, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL459
07:25
Seattle-Tacoma (SEA)

16:00
Boston Logan (BOS) A
Effective 2025-05-07 through 2025-06-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:35, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL459
07:35
Seattle-Tacoma (SEA)

16:07
Boston Logan (BOS) A
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:32, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL459
07:40
Seattle-Tacoma (SEA)

16:16
Boston Logan (BOS) A
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:36, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL459
07:50
Seattle-Tacoma (SEA)

16:27
Boston Logan (BOS) A
Effective 2025-06-08 through 2025-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:37, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL473
22:00
Seattle-Tacoma (SEA)

06:31(+1)
Boston Logan (BOS) A
Effective 2025-07-07 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:31, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL473
22:00
Seattle-Tacoma (SEA)

06:34(+1)
Boston Logan (BOS) A
Effective 2025-09-08 through 2025-10-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:34, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL473
22:00
Seattle-Tacoma (SEA)

05:34(+1)
Boston Logan (BOS) A
Operates only on 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:34, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL473
22:00
Seattle-Tacoma (SEA)

06:34(+1)
Boston Logan (BOS) A
Effective 2025-11-02 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:34, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL473
22:00
Seattle-Tacoma (SEA)

06:32(+1)
Boston Logan (BOS) A
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:32, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL473
22:05
Seattle-Tacoma (SEA)

06:31(+1)
Boston Logan (BOS) A
Valid until 2025-05-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:26, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL473
22:05
Seattle-Tacoma (SEA)

06:30(+1)
Boston Logan (BOS) A
Operates only on 2025-05-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL473
22:11
Seattle-Tacoma (SEA)

06:40(+1)
Boston Logan (BOS) A
Effective 2025-05-07 through 2025-06-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:29, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL473
22:15
Seattle-Tacoma (SEA)

06:40(+1)
Boston Logan (BOS) A
Effective 2025-06-08 through 2025-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL473
23:35
Seattle-Tacoma (SEA)

08:03(+1)
Boston Logan (BOS) A
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:28, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL474
15:20
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) A
Effective 2025-08-11 through 2025-08-29
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:34, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL474
15:20
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) A
Effective 2025-09-01 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:34, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL474
15:20
Seattle-Tacoma (SEA)

23:44
Boston Logan (BOS) A
Effective 2025-09-08 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:24, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL474
15:30
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) A
Effective 2025-07-07 through 2025-08-10
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:29, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL474
15:35
Seattle-Tacoma (SEA)

23:53
Boston Logan (BOS) A
Valid until 2025-05-05
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:18, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL474
15:37
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) A
Effective 2025-05-07 through 2025-05-23
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:22, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL474
15:37
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) A
Effective 2025-05-26 through 2025-06-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:22, non-stop
Airbus A321neo (32Q)
Delta Air Lines DL474
15:50
Seattle-Tacoma (SEA)

00:15(+1)
Boston Logan (BOS) A
Effective 2025-06-08 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL474
15:50
Seattle-Tacoma (SEA)

00:15(+1)
Boston Logan (BOS) A
Operates only on 2025-07-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Delta Air Lines DL8817
23:05
Seattle-Tacoma (SEA)

07:25(+1)
Boston Logan (BOS) A
Operates only on 2025-05-21
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:20, non-stop
Airbus A330-900neo (339)
The flight arrives 1 day after departure.
  • A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Boston Logan airport (BOS).
  • The flight distance is 2487 miles, or 4003 km.
  • The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . 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 5:18 and 5:39.
All SEA-BOS flights
All Delta Air Lines flights
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