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

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 07:20 Seattle-Tacoma (SEA) 15:50 Boston Logan (BOS) A
Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:30 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:25 Seattle-Tacoma (SEA) 16:00 Boston Logan (BOS) A
Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:35 Effective 2025-05-07 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:35 Seattle-Tacoma (SEA) 16:07 Boston Logan (BOS) A
Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:32 Valid until 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:40 Seattle-Tacoma (SEA) 16:16 Boston Logan (BOS) A
Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:36 Effective 2025-12-20 through 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:50 Seattle-Tacoma (SEA) 16:27 Boston Logan (BOS) A
Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:37 Effective 2025-06-08 through 2025-07-06
Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 22:00 Seattle-Tacoma (SEA) 06:31 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:31 Effective 2025-07-07 through 2025-09-07
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-08 through 2025-10-31
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Sat 22:00 Seattle-Tacoma (SEA) 05:34 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:34 Operates only on 2025-11-01
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-11-02 through 2025-12-19
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:32 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:32 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:05 Seattle-Tacoma (SEA) 06:31 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:26 Valid until 2025-05-05
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Tue 22:05 Seattle-Tacoma (SEA) 06:30 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:25 Operates only on 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:11 Seattle-Tacoma (SEA) 06:40 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:29 Effective 2025-05-07 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 22:15 Seattle-Tacoma (SEA) 06:40 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:25 Effective 2025-06-08 through 2025-07-06
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 23:35 Seattle-Tacoma (SEA) 08:03 Boston Logan (BOS) A
Virgin Atlantic VS 3541 Non-stop Airbus A321neo (32Q) 5:28 Effective 2025-12-20 through 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Daily 23:35 Seattle-Tacoma (SEA) 08:03 Boston Logan (BOS) A
SAS SK 3915 Non-stop Airbus A321neo (32Q) 5:28 Effective 2025-12-20 through 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Mon,Thu,Sat 07:20 Seattle-Tacoma (SEA) 15:59 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:39 Effective 2025-07-07 through 2025-09-06
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Thu,Sat 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-08 through 2025-09-20
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Thu,Sat 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-25 through 2025-10-02
Codeshare flight, operated by Delta Air Lines.(DL 459)
Tue,Thu,Sat 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-10-09 through 2025-10-18
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Thu,Sat,Sun 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-10-20 through 2025-10-26
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 2025-10-28 through 2025-12-18
Codeshare flight, operated by Delta Air Lines.(DL 459)
Tue,Thu,Sun 07:20 Seattle-Tacoma (SEA) 15:50 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:30 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Thu,Sat 07:25 Seattle-Tacoma (SEA) 16:00 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:35 Effective 2025-05-08 through 2025-05-31
Codeshare flight, operated by Delta Air Lines.(DL 459)
Thu,Sat 07:25 Seattle-Tacoma (SEA) 16:00 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:35 Effective 2025-06-05 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Thu 07:35 Seattle-Tacoma (SEA) 16:07 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:32 Valid until 2025-05-05
Codeshare flight, operated by Delta Air Lines.(DL 459)
Sat 07:35 Seattle-Tacoma (SEA) 16:07 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:32 Operates only on 2025-05-03
Codeshare flight, operated by Delta Air Lines.(DL 459)
Tue,Thu,Sun 07:40 Seattle-Tacoma (SEA) 16:16 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:36 Effective 2025-12-21 through 2026-01-04
Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Thu,Sat 07:50 Seattle-Tacoma (SEA) 16:27 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:37 Effective 2025-06-09 through 2025-07-05
Codeshare flight, operated by Delta Air Lines.(DL 459)
Tue 22:00 Seattle-Tacoma (SEA) 06:31 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:31 Effective 2025-07-08 through 2025-09-02
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Tue 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-09 through 2025-09-16
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Tue 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:34 Operates only on 2025-10-07
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Tue 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:34 Operates only on 2025-10-21
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Tue 22:05 Seattle-Tacoma (SEA) 06:30 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:25 Operates only on 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Tue 22:11 Seattle-Tacoma (SEA) 06:40 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:29 Effective 2025-05-13 through 2025-06-03
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Tue 22:15 Seattle-Tacoma (SEA) 06:40 Boston Logan (BOS) A
El Al LY 4226 Non-stop Airbus A321neo (32Q) 5:25 Effective 2025-06-10 through 2025-07-01
Codeshare flight, operated by Delta Air Lines.(DL 473)
The flight arrives 1 day after departure.
Tue-Fri,Sun 21:50 Seattle-Tacoma (SEA) 06:12 Boston Logan (BOS) C
TAP Air Portugal TP 4386 Non-stop Airbus A321 (321) 5:22 Effective 2025-06-12 through 2025-07-04
Codeshare flight, operated by JetBlue.(B6 198)
The flight arrives 1 day after departure.
Tue-Sun 21:50 Seattle-Tacoma (SEA) 06:12 Boston Logan (BOS) C
TAP Air Portugal TP 4386 Non-stop Airbus A321 (321) 5:22 Effective 2025-07-05 through 2025-07-27
Codeshare flight, operated by JetBlue.(B6 198)
The flight arrives 1 day after departure.
Daily 21:50 Seattle-Tacoma (SEA) 06:12 Boston Logan (BOS) C
TAP Air Portugal TP 4386 Non-stop Airbus A321 (321) 5:22 Effective 2025-07-28 through 2025-09-02
Codeshare flight, operated by JetBlue.(B6 198)
The flight arrives 1 day after departure.
Daily 22:20 Seattle-Tacoma (SEA) 06:37 Boston Logan (BOS) C
TAP Air Portugal TP 4386 Non-stop Airbus A220-300 (223) 5:17 Effective 2025-12-18 through 2026-01-09
Codeshare flight, operated by JetBlue.(B6 498)
The flight arrives 1 day after departure.
Mon-Fri,Sun 22:20 Seattle-Tacoma (SEA) 06:37 Boston Logan (BOS) C
TAP Air Portugal TP 4386 Non-stop Airbus A220-300 (223) 5:17 Effective 2026-01-11 through 2026-01-23
Codeshare flight, operated by JetBlue.(B6 498)
The flight arrives 1 day after departure.
Mon-Fri,Sun 22:20 Seattle-Tacoma (SEA) 06:37 Boston Logan (BOS) C
TAP Air Portugal TP 4386 Non-stop Airbus A220-300 (223) 5:17 Effective 2026-01-26 through 2026-02-01
Codeshare flight, operated by JetBlue.(B6 498)
The flight arrives 1 day after departure.
Mon-Fri,Sun 22:20 Seattle-Tacoma (SEA) 06:37 Boston Logan (BOS) C
TAP Air Portugal TP 4386 Non-stop Airbus A220-300 (223) 5:17 Effective 2026-02-03 through 2026-02-09
Codeshare flight, operated by JetBlue.(B6 498)
The flight arrives 1 day after departure.
Daily 22:29 Seattle-Tacoma (SEA) 06:46 Boston Logan (BOS) C
TAP Air Portugal TP 4386 Non-stop Airbus A220-300 (223) 5:17 Effective 2025-11-02 through 2025-12-17
Codeshare flight, operated by JetBlue.(B6 498)
The flight arrives 1 day after departure.
Daily 11:30 Seattle-Tacoma (SEA) 20:07 Boston Logan (BOS) C
TAP Air Portugal TP 4478 Non-stop Airbus A321 (321) 5:37 Effective 2025-06-12 through 2025-09-02
Codeshare flight, operated by JetBlue.(B6 398)
Mon-Wed,Fri-Sun 11:30 Seattle-Tacoma (SEA) 19:57 Boston Logan (BOS) C
TAP Air Portugal TP 4478 Non-stop Airbus A321 (321) 5:27 Effective 2025-09-03 through 2025-09-10
Codeshare flight, operated by JetBlue.(B6 398)
Daily 11:30 Seattle-Tacoma (SEA) 19:57 Boston Logan (BOS) C
TAP Air Portugal TP 4478 Non-stop Airbus A321 (321) 5:27 Effective 2025-09-11 through 2025-09-17
Codeshare flight, operated by JetBlue.(B6 398)
Daily 11:30 Seattle-Tacoma (SEA) 19:57 Boston Logan (BOS) C
TAP Air Portugal TP 4478 Non-stop Airbus A321 (321) 5:27 Effective 2025-09-19 through 2025-10-25
Codeshare flight, operated by JetBlue.(B6 398)
Wed-Sat 11:35 Seattle-Tacoma (SEA) 20:08 Boston Logan (BOS) C
TAP Air Portugal TP 4478 Non-stop Airbus A321 (321) 5:33 Valid until 2025-05-03
Codeshare flight, operated by JetBlue.(B6 398)
Mon-Wed,Fri-Sun 11:35 Seattle-Tacoma (SEA) 20:08 Boston Logan (BOS) C
TAP Air Portugal TP 4478 Non-stop Airbus A321 (321) 5:33 Effective 2025-06-06 through 2025-06-11
Codeshare flight, operated by JetBlue.(B6 398)
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All airlines flying from Seattle-Tacoma (SEA) to Boston Logan (BOS).
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air France AF3534
07:20
Seattle-Tacoma (SEA)

15:50
Boston Logan (BOS) A
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:30, non-stop
Airbus A321neo (32Q)
Air France AF3534
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
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:35, non-stop
Airbus A321neo (32Q)
Air France AF3534
07:35
Seattle-Tacoma (SEA)

16:07
Boston Logan (BOS) A
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:32, non-stop
Airbus A321neo (32Q)
Air France AF3534
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
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:36, non-stop
Airbus A321neo (32Q)
Air France AF3534
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
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:37, non-stop
Airbus A321neo (32Q)
Virgin Atlantic VS3541
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
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:31, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Virgin Atlantic VS3541
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
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Virgin Atlantic VS3541
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
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Virgin Atlantic VS3541
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
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Virgin Atlantic VS3541
22:00
Seattle-Tacoma (SEA)

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

06:31(+1)
Boston Logan (BOS) A
Valid until 2025-05-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:26, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Virgin Atlantic VS3541
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
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Virgin Atlantic VS3541
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
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:29, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Virgin Atlantic VS3541
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
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Virgin Atlantic VS3541
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
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:28, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
SAS SK3915
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
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:28, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:59
Boston Logan (BOS) A
Effective 2025-07-07 through 2025-09-06
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:39, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:54
Boston Logan (BOS) A
Effective 2025-09-08 through 2025-09-20
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:54
Boston Logan (BOS) A
Effective 2025-09-25 through 2025-10-02
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:54
Boston Logan (BOS) A
Effective 2025-10-09 through 2025-10-18
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:54
Boston Logan (BOS) A
Effective 2025-10-20 through 2025-10-26
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:54
Boston Logan (BOS) A
Effective 2025-10-28 through 2025-12-18
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:20
Seattle-Tacoma (SEA)

15:50
Boston Logan (BOS) A
Effective from 2026-01-06
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:30, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:25
Seattle-Tacoma (SEA)

16:00
Boston Logan (BOS) A
Effective 2025-05-08 through 2025-05-31
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:35, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:25
Seattle-Tacoma (SEA)

16:00
Boston Logan (BOS) A
Effective 2025-06-05 through 2025-06-07
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:35, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:35
Seattle-Tacoma (SEA)

16:07
Boston Logan (BOS) A
Valid until 2025-05-05
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:32, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:35
Seattle-Tacoma (SEA)

16:07
Boston Logan (BOS) A
Operates only on 2025-05-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:32, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:40
Seattle-Tacoma (SEA)

16:16
Boston Logan (BOS) A
Effective 2025-12-21 through 2026-01-04
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:36, non-stop
Airbus A321neo (32Q)
El Al LY4226
07:50
Seattle-Tacoma (SEA)

16:27
Boston Logan (BOS) A
Effective 2025-06-09 through 2025-07-05
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 459)
Duration: 5:37, non-stop
Airbus A321neo (32Q)
El Al LY4226
22:00
Seattle-Tacoma (SEA)

06:31(+1)
Boston Logan (BOS) A
Effective 2025-07-08 through 2025-09-02
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:31, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
El Al LY4226
22:00
Seattle-Tacoma (SEA)

06:34(+1)
Boston Logan (BOS) A
Effective 2025-09-09 through 2025-09-16
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
El Al LY4226
22:00
Seattle-Tacoma (SEA)

06:34(+1)
Boston Logan (BOS) A
Operates only on 2025-10-07
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
El Al LY4226
22:00
Seattle-Tacoma (SEA)

06:34(+1)
Boston Logan (BOS) A
Operates only on 2025-10-21
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
El Al LY4226
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
-
Codeshare flight, operated by Delta Air Lines. (DL 473)
Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
El Al LY4226
22:11
Seattle-Tacoma (SEA)

06:40(+1)
Boston Logan (BOS) A
Effective 2025-05-13 through 2025-06-03
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.
El Al LY4226
22:15
Seattle-Tacoma (SEA)

06:40(+1)
Boston Logan (BOS) A
Effective 2025-06-10 through 2025-07-01
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.
TAP Air Portugal TP4386
21:50
Seattle-Tacoma (SEA)

06:12(+1)
Boston Logan (BOS) C
Effective 2025-06-12 through 2025-07-04
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by JetBlue. (B6 198)
Duration: 5:22, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.
TAP Air Portugal TP4386
21:50
Seattle-Tacoma (SEA)

06:12(+1)
Boston Logan (BOS) C
Effective 2025-07-05 through 2025-07-27
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 198)
Duration: 5:22, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.
TAP Air Portugal TP4386
21:50
Seattle-Tacoma (SEA)

06:12(+1)
Boston Logan (BOS) C
Effective 2025-07-28 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 198)
Duration: 5:22, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.
TAP Air Portugal TP4386
22:20
Seattle-Tacoma (SEA)

06:37(+1)
Boston Logan (BOS) C
Effective 2025-12-18 through 2026-01-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 498)
Duration: 5:17, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
TAP Air Portugal TP4386
22:20
Seattle-Tacoma (SEA)

06:37(+1)
Boston Logan (BOS) C
Effective 2026-01-11 through 2026-01-23
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by JetBlue. (B6 498)
Duration: 5:17, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
TAP Air Portugal TP4386
22:20
Seattle-Tacoma (SEA)

06:37(+1)
Boston Logan (BOS) C
Effective 2026-01-26 through 2026-02-01
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by JetBlue. (B6 498)
Duration: 5:17, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
TAP Air Portugal TP4386
22:20
Seattle-Tacoma (SEA)

06:37(+1)
Boston Logan (BOS) C
Effective 2026-02-03 through 2026-02-09
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by JetBlue. (B6 498)
Duration: 5:17, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
TAP Air Portugal TP4386
22:29
Seattle-Tacoma (SEA)

06:46(+1)
Boston Logan (BOS) C
Effective 2025-11-02 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 498)
Duration: 5:17, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
TAP Air Portugal TP4478
11:30
Seattle-Tacoma (SEA)

20:07
Boston Logan (BOS) C
Effective 2025-06-12 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 398)
Duration: 5:37, non-stop
Airbus A321 (321)
TAP Air Portugal TP4478
11:30
Seattle-Tacoma (SEA)

19:57
Boston Logan (BOS) C
Effective 2025-09-03 through 2025-09-10
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 398)
Duration: 5:27, non-stop
Airbus A321 (321)
TAP Air Portugal TP4478
11:30
Seattle-Tacoma (SEA)

19:57
Boston Logan (BOS) C
Effective 2025-09-11 through 2025-09-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 398)
Duration: 5:27, non-stop
Airbus A321 (321)
TAP Air Portugal TP4478
11:30
Seattle-Tacoma (SEA)

19:57
Boston Logan (BOS) C
Effective 2025-09-19 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 398)
Duration: 5:27, non-stop
Airbus A321 (321)
TAP Air Portugal TP4478
11:35
Seattle-Tacoma (SEA)

20:08
Boston Logan (BOS) C
Valid until 2025-05-03
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by JetBlue. (B6 398)
Duration: 5:33, non-stop
Airbus A321 (321)
TAP Air Portugal TP4478
11:35
Seattle-Tacoma (SEA)

20:08
Boston Logan (BOS) C
Effective 2025-06-06 through 2025-06-11
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 398)
Duration: 5:33, non-stop
Airbus A321 (321)
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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 5:16 and 5:39.
Return (BOS-SEA) flights
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