All airlines flying from Seattle-Tacoma (SEA) to Boston Logan (BOS).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A
Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:34 Effective from 2026-10-06
Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:30 Seattle-Tacoma (SEA) 15:59 Boston Logan (BOS) A
Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:29 Effective 2026-02-12 through 2026-03-07
Codeshare flight, operated by Delta Air Lines.(DL 459)
Wed,Thu 07:35 Seattle-Tacoma (SEA) 16:03 Boston Logan (BOS) A
Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:28 Valid until 2026-01-01
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Tue,Fri-Sun 07:40 Seattle-Tacoma (SEA) 16:08 Boston Logan (BOS) A
Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:28 Valid until 2026-01-04
Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:40 Seattle-Tacoma (SEA) 16:09 Boston Logan (BOS) A
Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:29 Effective 2026-01-05 through 2026-02-11
Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 22:00 Seattle-Tacoma (SEA) 06:35 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:35 Effective 2026-04-13 through 2026-10-05
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:33 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:33 Effective from 2026-10-06
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:20 Seattle-Tacoma (SEA) 06:50 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:30 Effective 2026-02-12 through 2026-03-06
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Sat 22:20 Seattle-Tacoma (SEA) 07:48 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:28 Operates only on 2026-03-07
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Mon-Thu,Sat,Sun 22:25 Seattle-Tacoma (SEA) 06:50 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:25 Effective 2026-01-05 through 2026-02-11
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Fri 22:25 Seattle-Tacoma (SEA) 06:53 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:28 Effective 2026-01-09 through 2026-02-06
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:25 Seattle-Tacoma (SEA) 06:49 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:24 Effective 2026-03-08 through 2026-03-14
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:25 Seattle-Tacoma (SEA) 06:50 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:25 Effective 2026-03-15 through 2026-04-12
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 23:00 Seattle-Tacoma (SEA) 07:29 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:29 Valid until 2026-01-04
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 11:50 Seattle-Tacoma (SEA) 20:30 Boston Logan (BOS) A
Virgin Atlantic VS 3753 Non-stop Airbus A321neo (32Q) 5:40 Effective 2026-05-07 through 2026-10-05
Codeshare flight, operated by Delta Air Lines.(DL 412)
Daily 11:50 Seattle-Tacoma (SEA) 20:23 Boston Logan (BOS) A
Virgin Atlantic VS 3753 Non-stop Airbus A321neo (32Q) 5:33 Effective 2026-10-06 through 2026-10-24
Codeshare flight, operated by Delta Air Lines.(DL 438)
Tue,Thu,Sun 07:20 Seattle-Tacoma (SEA) 15:42 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:22 Effective 2026-03-08 through 2026-03-12
Codeshare flight, operated by Delta Air Lines.(DL 459)
Tue,Thu,Sun 07:20 Seattle-Tacoma (SEA) 15:43 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:23 Effective 2026-03-15 through 2026-03-26
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon 07:20 Seattle-Tacoma (SEA) 15:43 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:23 Effective 2026-03-30 through 2026-04-06
Codeshare flight, operated by Delta Air Lines.(DL 459)
Thu 07:20 Seattle-Tacoma (SEA) 15:43 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:23 Operates only on 2026-04-09
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Thu 07:20 Seattle-Tacoma (SEA) 16:00 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:40 Effective 2026-04-13 through 2026-05-18
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Thu 07:20 Seattle-Tacoma (SEA) 16:00 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:40 Effective 2026-05-25 through 2026-09-17
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Thu 07:20 Seattle-Tacoma (SEA) 16:00 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:40 Effective 2026-09-24 through 2026-10-05
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Thu 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:34 Effective 2026-10-08 through 2026-10-22
Codeshare flight, operated by Delta Air Lines.(DL 459)
Tue,Thu,Sun 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:34 Effective from 2026-10-25
Codeshare flight, operated by Delta Air Lines.(DL 459)
Tue,Thu,Sun 07:30 Seattle-Tacoma (SEA) 15:59 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:29 Effective 2026-02-12 through 2026-03-05
Codeshare flight, operated by Delta Air Lines.(DL 459)
Thu 07:35 Seattle-Tacoma (SEA) 16:03 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:28 Valid until 2026-01-01
Codeshare flight, operated by Delta Air Lines.(DL 459)
Tue,Sun 07:40 Seattle-Tacoma (SEA) 16:08 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:28 Valid until 2026-01-04
Codeshare flight, operated by Delta Air Lines.(DL 459)
Tue,Thu,Sun 07:40 Seattle-Tacoma (SEA) 16:09 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:29 Effective 2026-01-06 through 2026-02-10
Codeshare flight, operated by Delta Air Lines.(DL 459)
Tue 22:00 Seattle-Tacoma (SEA) 06:35 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:35 Effective 2026-04-14 through 2026-09-22
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Sat 22:00 Seattle-Tacoma (SEA) 06:35 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:35 Effective 2026-04-18 through 2026-09-05
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Tue,Sat 22:00 Seattle-Tacoma (SEA) 06:35 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:35 Effective 2026-09-26 through 2026-10-03
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Tue,Sat 22:00 Seattle-Tacoma (SEA) 06:33 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:33 Effective 2026-10-06 through 2026-10-20
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Sat 22:25 Seattle-Tacoma (SEA) 06:50 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:25 Effective 2026-03-28 through 2026-04-11
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:10 Seattle-Tacoma (SEA) 06:30 Boston Logan (BOS) C
TAP Air Portugal TP 4386 Non-stop Airbus A321 (321) 5:20 Effective 2026-06-11 through 2026-09-08
Codeshare flight, operated by JetBlue.(B6 198)
The flight arrives 1 day after departure.
Daily 11:30 Seattle-Tacoma (SEA) 20:05 Boston Logan (BOS) C
TAP Air Portugal TP 4478 Non-stop Airbus A321 (321) 5:35 Effective 2026-04-30 through 2026-09-08
Codeshare flight, operated by JetBlue.(B6 398)
Daily 11:30 Seattle-Tacoma (SEA) 20:23 Boston Logan (BOS) C
TAP Air Portugal TP 4478 Non-stop Airbus A321 (321) 5:53 Effective from 2026-09-09
Codeshare flight, operated by JetBlue.(B6 398)
Sat 22:23 Seattle-Tacoma (SEA) 07:42 Boston Logan (BOS) B
Hawaiian Airlines HA 4991 Non-stop Boeing 737 MAX 9 (7M9) 5:19 Operates only on 2026-03-07
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Daily 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B
Hawaiian Airlines HA 4991 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-02-12 through 2026-02-25
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Thu 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B
Hawaiian Airlines HA 4991 Non-stop Boeing 737 (737) 5:14 Operates only on 2026-02-26
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Daily 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B
Hawaiian Airlines HA 4991 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-02-27 through 2026-03-06
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Mon,Tue,Sun 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B
Hawaiian Airlines HA 4991 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-03-08 through 2026-03-10
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Sat 22:23 Seattle-Tacoma (SEA) 07:42 Boston Logan (BOS) B
Condor DE 5066 Non-stop Boeing 737 MAX 9 (7M9) 5:19 Operates only on 2026-03-07
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Mon,Thu,Sat 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B
Condor DE 5066 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-02-12 through 2026-02-23
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Thu 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B
Condor DE 5066 Non-stop Boeing 737 (73J) 5:14 Operates only on 2026-02-26
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Mon,Thu,Sat 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B
Condor DE 5066 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-02-28 through 2026-03-05
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Mon 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B
Condor DE 5066 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-03-09 through 2026-03-16
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Thu,Sat 22:40 Seattle-Tacoma (SEA) 06:54 Boston Logan (BOS) B
Condor DE 5066 Non-stop Boeing 737 (73J) 5:14 Effective 2026-03-12 through 2026-03-14
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Mon,Thu,Sat 22:50 Seattle-Tacoma (SEA) 07:12 Boston Logan (BOS) B
Condor DE 5066 Non-stop Boeing 737 (73J) 5:22 Effective 2026-03-19 through 2026-03-26
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
Mon,Thu,Sat 22:50 Seattle-Tacoma (SEA) 07:12 Boston Logan (BOS) B
Condor DE 5066 Non-stop Boeing 737 (73J) 5:22 Effective 2026-03-30 through 2026-04-11
Codeshare flight, operated by Alaska Airlines.(AS 536)
The flight arrives 1 day after departure.
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All airlines flying from Seattle-Tacoma (SEA) to Boston Logan (BOS).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air France AF3534
07:20
Seattle-Tacoma (SEA)

15:54
Boston Logan (BOS) A
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air France AF3534
07:30
Seattle-Tacoma (SEA)

15:59
Boston Logan (BOS) A
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:29, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air France AF3534
07:35
Seattle-Tacoma (SEA)

16:03
Boston Logan (BOS) A
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:28, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air France AF3534
07:40
Seattle-Tacoma (SEA)

16:08
Boston Logan (BOS) A
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:28, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air France AF3534
07:40
Seattle-Tacoma (SEA)

16:09
Boston Logan (BOS) A
Effective 2026-01-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:29, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Virgin Atlantic VS3541
22:00
Seattle-Tacoma (SEA)

06:35(+1)
Boston Logan (BOS) A
Effective 2026-04-13 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:35, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Virgin Atlantic VS3541
22:00
Seattle-Tacoma (SEA)

06:33(+1)
Boston Logan (BOS) A
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:33, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Virgin Atlantic VS3541
22:20
Seattle-Tacoma (SEA)

06:50(+1)
Boston Logan (BOS) A
Effective 2026-02-12 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:30, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Virgin Atlantic VS3541
22:20
Seattle-Tacoma (SEA)

07:48(+1)
Boston Logan (BOS) A
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:28, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Virgin Atlantic VS3541
22:25
Seattle-Tacoma (SEA)

06:50(+1)
Boston Logan (BOS) A
Effective 2026-01-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Virgin Atlantic VS3541
22:25
Seattle-Tacoma (SEA)

06:53(+1)
Boston Logan (BOS) A
Effective 2026-01-09 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:28, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Virgin Atlantic VS3541
22:25
Seattle-Tacoma (SEA)

06:49(+1)
Boston Logan (BOS) A
Effective 2026-03-08 through 2026-03-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:24, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Virgin Atlantic VS3541
22:25
Seattle-Tacoma (SEA)

06:50(+1)
Boston Logan (BOS) A
Effective 2026-03-15 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Virgin Atlantic VS3541
23:00
Seattle-Tacoma (SEA)

07:29(+1)
Boston Logan (BOS) A
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:29, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Virgin Atlantic VS3753
11:50
Seattle-Tacoma (SEA)

20:30
Boston Logan (BOS) A
Effective 2026-05-07 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 412)
Duration: 5:40, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Virgin Atlantic VS3753
11:50
Seattle-Tacoma (SEA)

20:23
Boston Logan (BOS) A
Effective 2026-10-06 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 438)
Duration: 5:33, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:42
Boston Logan (BOS) A
Effective 2026-03-08 through 2026-03-12
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:22, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:43
Boston Logan (BOS) A
Effective 2026-03-15 through 2026-03-26
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:23, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:43
Boston Logan (BOS) A
Effective 2026-03-30 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:23, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:43
Boston Logan (BOS) A
Operates only on 2026-04-09
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:23, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:20
Seattle-Tacoma (SEA)

16:00
Boston Logan (BOS) A
Effective 2026-04-13 through 2026-05-18
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:40, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:20
Seattle-Tacoma (SEA)

16:00
Boston Logan (BOS) A
Effective 2026-05-25 through 2026-09-17
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:40, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:20
Seattle-Tacoma (SEA)

16:00
Boston Logan (BOS) A
Effective 2026-09-24 through 2026-10-05
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:40, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:54
Boston Logan (BOS) A
Effective 2026-10-08 through 2026-10-22
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:54
Boston Logan (BOS) A
Effective from 2026-10-25
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:30
Seattle-Tacoma (SEA)

15:59
Boston Logan (BOS) A
Effective 2026-02-12 through 2026-03-05
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:29, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:35
Seattle-Tacoma (SEA)

16:03
Boston Logan (BOS) A
Valid until 2026-01-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:28, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:40
Seattle-Tacoma (SEA)

16:08
Boston Logan (BOS) A
Valid until 2026-01-04
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:28, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
07:40
Seattle-Tacoma (SEA)

16:09
Boston Logan (BOS) A
Effective 2026-01-06 through 2026-02-10
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:29, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
El Al LY4226
22:00
Seattle-Tacoma (SEA)

06:35(+1)
Boston Logan (BOS) A
Effective 2026-04-14 through 2026-09-22
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:35, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
El Al LY4226
22:00
Seattle-Tacoma (SEA)

06:35(+1)
Boston Logan (BOS) A
Effective 2026-04-18 through 2026-09-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:35, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
El Al LY4226
22:00
Seattle-Tacoma (SEA)

06:35(+1)
Boston Logan (BOS) A
Effective 2026-09-26 through 2026-10-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:35, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
El Al LY4226
22:00
Seattle-Tacoma (SEA)

06:33(+1)
Boston Logan (BOS) A
Effective 2026-10-06 through 2026-10-20
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:33, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
El Al LY4226
22:25
Seattle-Tacoma (SEA)

06:50(+1)
Boston Logan (BOS) A
Effective 2026-03-28 through 2026-04-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
TAP Air Portugal TP4386
22:10
Seattle-Tacoma (SEA)

06:30(+1)
Boston Logan (BOS) C
Effective 2026-06-11 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 198)
Duration: 5:20, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
TAP Air Portugal TP4478
11:30
Seattle-Tacoma (SEA)

20:05
Boston Logan (BOS) C
Effective 2026-04-30 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 398)
Duration: 5:35, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
TAP Air Portugal TP4478
11:30
Seattle-Tacoma (SEA)

20:23
Boston Logan (BOS) C
Effective from 2026-09-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 398)
Duration: 5:53, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Hawaiian Airlines HA4991
22:23
Seattle-Tacoma (SEA)

07:42(+1)
Boston Logan (BOS) B
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:19, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Hawaiian Airlines HA4991
22:40
Seattle-Tacoma (SEA)

06:54(+1)
Boston Logan (BOS) B
Effective 2026-02-12 through 2026-02-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Hawaiian Airlines HA4991
22:40
Seattle-Tacoma (SEA)

06:54(+1)
Boston Logan (BOS) B
Operates only on 2026-02-26
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:14, non-stop
Boeing 737 (737)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Hawaiian Airlines HA4991
22:40
Seattle-Tacoma (SEA)

06:54(+1)
Boston Logan (BOS) B
Effective 2026-02-27 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Hawaiian Airlines HA4991
22:40
Seattle-Tacoma (SEA)

06:54(+1)
Boston Logan (BOS) B
Effective 2026-03-08 through 2026-03-10
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Condor DE5066
22:23
Seattle-Tacoma (SEA)

07:42(+1)
Boston Logan (BOS) B
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:19, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Condor DE5066
22:40
Seattle-Tacoma (SEA)

06:54(+1)
Boston Logan (BOS) B
Effective 2026-02-12 through 2026-02-23
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Condor DE5066
22:40
Seattle-Tacoma (SEA)

06:54(+1)
Boston Logan (BOS) B
Operates only on 2026-02-26
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:14, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Condor DE5066
22:40
Seattle-Tacoma (SEA)

06:54(+1)
Boston Logan (BOS) B
Effective 2026-02-28 through 2026-03-05
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Condor DE5066
22:40
Seattle-Tacoma (SEA)

06:54(+1)
Boston Logan (BOS) B
Effective 2026-03-09 through 2026-03-16
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Condor DE5066
22:40
Seattle-Tacoma (SEA)

06:54(+1)
Boston Logan (BOS) B
Effective 2026-03-12 through 2026-03-14
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:14, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Condor DE5066
22:50
Seattle-Tacoma (SEA)

07:12(+1)
Boston Logan (BOS) B
Effective 2026-03-19 through 2026-03-26
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:22, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Condor DE5066
22:50
Seattle-Tacoma (SEA)

07:12(+1)
Boston Logan (BOS) B
Effective 2026-03-30 through 2026-04-11
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 536)
Duration: 5:22, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
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  • 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 5:14 and 5:53.
Return (BOS-SEA) flights
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