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

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Sun 23:40 Seattle-Tacoma (SEA) 08:00 Boston Logan (BOS) B Air Tahiti Nui TN 2782 Non-stop Boeing 737 MAX 9 (7M9) 5:20 Operates only on 2025-07-20 Codeshare flight, operated by Alaska Airlines.(AS 536) The flight arrives 1 day after departure.
Daily 23:40 Seattle-Tacoma (SEA) 08:00 Boston Logan (BOS) B Air Tahiti Nui TN 2782 Non-stop Boeing 737 (73J) 5:20 Effective 2025-07-21 through 2025-08-12 Codeshare flight, operated by Alaska Airlines.(AS 536) The flight arrives 1 day after departure.
Tue,Wed 23:40 Seattle-Tacoma (SEA) 08:00 Boston Logan (BOS) B Air Tahiti Nui TN 2782 Non-stop Boeing 737 MAX 9 (7M9) 5:20 Effective 2025-08-13 through 2025-08-19 Codeshare flight, operated by Alaska Airlines.(AS 536) The flight arrives 1 day after departure.
Mon,Thu-Sun 23:40 Seattle-Tacoma (SEA) 08:00 Boston Logan (BOS) B Air Tahiti Nui TN 2782 Non-stop Boeing 737 (73J) 5:20 Effective 2025-08-14 through 2025-08-18 Codeshare flight, operated by Alaska Airlines.(AS 536) The flight arrives 1 day after departure.
Daily 08:00 Seattle-Tacoma (SEA) 16:37 Boston Logan (BOS) B Qatar Airways QR 2967 Non-stop Boeing 737 (73J) 5:37 Effective 2025-08-20 through 2025-10-03 Codeshare flight, operated by Alaska Airlines.(AS 306)
Daily 08:20 Seattle-Tacoma (SEA) 16:46 Boston Logan (BOS) B Qatar Airways QR 2967 Non-stop Boeing 737 (73J) 5:26 Effective from 2025-10-04 Codeshare flight, operated by Alaska Airlines.(AS 306)
Daily 08:21 Seattle-Tacoma (SEA) 16:45 Boston Logan (BOS) B Qatar Airways QR 2967 Non-stop Boeing 737 MAX 9 (7M9) 5:24 Effective 2025-06-12 through 2025-07-03 Codeshare flight, operated by Alaska Airlines.(AS 306)
Fri 08:21 Seattle-Tacoma (SEA) 16:45 Boston Logan (BOS) B Qatar Airways QR 2967 Non-stop Boeing 737-800 (73H) 5:24 Operates only on 2025-07-04 Codeshare flight, operated by Alaska Airlines.(AS 306)
Daily 08:21 Seattle-Tacoma (SEA) 16:45 Boston Logan (BOS) B Qatar Airways QR 2967 Non-stop Boeing 737 MAX 9 (7M9) 5:24 Effective 2025-07-05 through 2025-08-19 Codeshare flight, operated by Alaska Airlines.(AS 306)
Mon-Wed,Fri-Sun 09:00 Seattle-Tacoma (SEA) 17:30 Boston Logan (BOS) B Qatar Airways QR 2974 Non-stop Boeing 737 MAX 9 (7M9) 5:30 Valid until 2025-05-14 Codeshare flight, operated by Alaska Airlines.(AS 306)
Thu 09:00 Seattle-Tacoma (SEA) 17:30 Boston Logan (BOS) B Qatar Airways QR 2974 Non-stop Boeing 737-800 (73H) 5:30 Valid until 2025-05-08 Codeshare flight, operated by Alaska Airlines.(AS 306)
Mon,Tue,Thu-Sun 08:13 Seattle-Tacoma (SEA) 16:45 Boston Logan (BOS) B Qatar Airways QR 2979 Non-stop Boeing 737 MAX 9 (7M9) 5:32 Effective 2025-05-15 through 2025-05-27 Codeshare flight, operated by Alaska Airlines.(AS 306)
Wed 08:13 Seattle-Tacoma (SEA) 16:45 Boston Logan (BOS) B Qatar Airways QR 2979 Non-stop Boeing 737 (73J) 5:32 Operates only on 2025-05-21 Codeshare flight, operated by Alaska Airlines.(AS 306)
Daily 08:13 Seattle-Tacoma (SEA) 16:45 Boston Logan (BOS) B Qatar Airways QR 2979 Non-stop Boeing 737 MAX 9 (7M9) 5:32 Effective 2025-05-28 through 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 306)
Daily 10:05 Seattle-Tacoma (SEA) 18:31 Boston Logan (BOS) B Qatar Airways QR 2989 Non-stop Boeing 737 (73J) 5:26 Effective 2025-10-26 through 2026-01-06 Codeshare flight, operated by Alaska Airlines.(AS 214)
Mon-Fri,Sun 15:20 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) A Korean Air KE 3009 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-08-11 through 2025-08-29 Codeshare flight, operated by Delta Air Lines.(DL 474)
Mon-Fri,Sun 15:20 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) A Korean Air KE 3009 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-01 through 2025-09-07 Codeshare flight, operated by Delta Air Lines.(DL 474)
Daily 15:20 Seattle-Tacoma (SEA) 23:44 Boston Logan (BOS) A Korean Air KE 3009 Non-stop Airbus A321neo (32Q) 5:24 Effective 2025-09-08 through 2025-12-19 Codeshare flight, operated by Delta Air Lines.(DL 474)
Mon-Fri,Sun 15:30 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) A Korean Air KE 3009 Non-stop Airbus A321neo (32Q) 5:29 Effective 2025-07-07 through 2025-08-10 Codeshare flight, operated by Delta Air Lines.(DL 474)
Mon,Wed-Fri,Sun 15:35 Seattle-Tacoma (SEA) 23:53 Boston Logan (BOS) A Korean Air KE 3009 Non-stop Airbus A321neo (32Q) 5:18 Valid until 2025-05-05 Codeshare flight, operated by Delta Air Lines.(DL 474)
Mon-Fri,Sun 15:37 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) A Korean Air KE 3009 Non-stop Airbus A321neo (32Q) 5:22 Effective 2025-05-07 through 2025-05-23 Codeshare flight, operated by Delta Air Lines.(DL 474)
Mon-Fri,Sun 15:37 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) A Korean Air KE 3009 Non-stop Airbus A321neo (32Q) 5:22 Effective 2025-05-26 through 2025-06-06 Codeshare flight, operated by Delta Air Lines.(DL 474)
Mon-Fri,Sun 15:50 Seattle-Tacoma (SEA) 00:15 Boston Logan (BOS) A Korean Air KE 3009 Non-stop Airbus A321neo (32Q) 5:25 Effective 2025-06-08 through 2025-07-03 Codeshare flight, operated by Delta Air Lines.(DL 474) The flight arrives 1 day after departure.
Sun 15:50 Seattle-Tacoma (SEA) 00:15 Boston Logan (BOS) A Korean Air KE 3009 Non-stop Airbus A321neo (32Q) 5:25 Operates only on 2025-07-06 Codeshare flight, operated by Delta Air Lines.(DL 474) The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:31 Boston Logan (BOS) A Korean Air KE 3143 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 Korean Air KE 3143 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 Korean Air KE 3143 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 Korean Air KE 3143 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 Korean Air KE 3143 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 Korean Air KE 3143 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 Korean Air KE 3143 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 Korean Air KE 3143 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 Korean Air KE 3143 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 Korean Air KE 3143 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 07:20 Seattle-Tacoma (SEA) 15:59 Boston Logan (BOS) A Virgin Atlantic VS 3325 Non-stop Airbus A321neo (32Q) 5:39 Effective 2025-07-07 through 2025-09-07 Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A Virgin Atlantic VS 3325 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-08 through 2025-12-19 Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:20 Seattle-Tacoma (SEA) 15:50 Boston Logan (BOS) A Virgin Atlantic VS 3325 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 Virgin Atlantic VS 3325 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 Virgin Atlantic VS 3325 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 Virgin Atlantic VS 3325 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 Virgin Atlantic VS 3325 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 07:20 Seattle-Tacoma (SEA) 15:59 Boston Logan (BOS) A SAS SK 3351 Non-stop Airbus A321neo (32Q) 5:39 Effective 2025-07-07 through 2025-09-07 Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A SAS SK 3351 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-08 through 2025-09-16 Codeshare flight, operated by Delta Air Lines.(DL 459)
Mon,Tue,Thu-Sun 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A SAS SK 3351 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-18 through 2025-10-28 Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A SAS SK 3351 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-10-29 through 2025-12-19 Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:20 Seattle-Tacoma (SEA) 15:50 Boston Logan (BOS) A SAS SK 3351 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 SAS SK 3351 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 SAS SK 3351 Non-stop Airbus A321neo (32Q) 5:32 Valid until 2025-05-06 Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:20 Seattle-Tacoma (SEA) 15:59 Boston Logan (BOS) A Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:39 Effective 2025-07-07 through 2025-09-07 Codeshare flight, operated by Delta Air Lines.(DL 459)
Daily 07:20 Seattle-Tacoma (SEA) 15:54 Boston Logan (BOS) A Air France AF 3534 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-08 through 2025-12-19 Codeshare flight, operated by Delta Air Lines.(DL 459)

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Parallax here SEA-BOS

1 2 3 4 5 6 7 8 9 10

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

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FLIGHT SCHEDULE

Direct Codeshare Flights:

Air Tahiti Nui TN2782

23:40

Seattle-Tacoma (SEA)

08:00(+1)

Boston Logan (BOS) B

Operates only on 2025-07-20

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 536)

Duration: 5:20, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Air Tahiti Nui TN2782

23:40

Seattle-Tacoma (SEA)

08:00(+1)

Boston Logan (BOS) B

Effective 2025-07-21 through 2025-08-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 536)

Duration: 5:20, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Air Tahiti Nui TN2782

23:40

Seattle-Tacoma (SEA)

08:00(+1)

Boston Logan (BOS) B

Effective 2025-08-13 through 2025-08-19

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 536)

Duration: 5:20, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Air Tahiti Nui TN2782

23:40

Seattle-Tacoma (SEA)

08:00(+1)

Boston Logan (BOS) B

Effective 2025-08-14 through 2025-08-18

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 536)

Duration: 5:20, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR2967

08:00

Seattle-Tacoma (SEA)

16:37

Boston Logan (BOS) B

Effective 2025-08-20 through 2025-10-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 306)

Duration: 5:37, non-stop
Boeing 737 (73J)

Qatar Airways QR2967

08:20

Seattle-Tacoma (SEA)

16:46

Boston Logan (BOS) B

Effective from 2025-10-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 306)

Duration: 5:26, non-stop
Boeing 737 (73J)

Qatar Airways QR2967

08:21

Seattle-Tacoma (SEA)

16:45

Boston Logan (BOS) B

Effective 2025-06-12 through 2025-07-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 306)

Duration: 5:24, non-stop
Boeing 737 MAX 9 (7M9)

Qatar Airways QR2967

08:21

Seattle-Tacoma (SEA)

16:45

Boston Logan (BOS) B

Operates only on 2025-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 306)

Duration: 5:24, non-stop
Boeing 737-800 (73H)

Qatar Airways QR2967

08:21

Seattle-Tacoma (SEA)

16:45

Boston Logan (BOS) B

Effective 2025-07-05 through 2025-08-19

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 306)

Duration: 5:24, non-stop
Boeing 737 MAX 9 (7M9)

Qatar Airways QR2974

09:00

Seattle-Tacoma (SEA)

17:30

Boston Logan (BOS) B

Valid until 2025-05-14

Mon

Tue

Wed

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 306)

Duration: 5:30, non-stop
Boeing 737 MAX 9 (7M9)

Qatar Airways QR2974

09:00

Seattle-Tacoma (SEA)

17:30

Boston Logan (BOS) B

Valid until 2025-05-08

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 306)

Duration: 5:30, non-stop
Boeing 737-800 (73H)

Qatar Airways QR2979

08:13

Seattle-Tacoma (SEA)

16:45

Boston Logan (BOS) B

Effective 2025-05-15 through 2025-05-27

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 306)

Duration: 5:32, non-stop
Boeing 737 MAX 9 (7M9)

Qatar Airways QR2979

08:13

Seattle-Tacoma (SEA)

16:45

Boston Logan (BOS) B

Operates only on 2025-05-21

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 306)

Duration: 5:32, non-stop
Boeing 737 (73J)

Qatar Airways QR2979

08:13

Seattle-Tacoma (SEA)

16:45

Boston Logan (BOS) B

Effective 2025-05-28 through 2025-06-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 306)

Duration: 5:32, non-stop
Boeing 737 MAX 9 (7M9)

Qatar Airways QR2989

10:05

Seattle-Tacoma (SEA)

18:31

Boston Logan (BOS) B

Effective 2025-10-26 through 2026-01-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 214)

Duration: 5:26, non-stop
Boeing 737 (73J)

Korean Air KE3009

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

Codeshare flight, operated by Delta Air Lines. (DL 474)

Duration: 5:34, non-stop
Airbus A321neo (32Q)

Korean Air KE3009

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

Codeshare flight, operated by Delta Air Lines. (DL 474)

Duration: 5:34, non-stop
Airbus A321neo (32Q)

Korean Air KE3009

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

Codeshare flight, operated by Delta Air Lines. (DL 474)

Duration: 5:24, non-stop
Airbus A321neo (32Q)

Korean Air KE3009

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

Codeshare flight, operated by Delta Air Lines. (DL 474)

Duration: 5:29, non-stop
Airbus A321neo (32Q)

Korean Air KE3009

15:35

Seattle-Tacoma (SEA)

23:53

Boston Logan (BOS) A

Valid until 2025-05-05

Mon

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 474)

Duration: 5:18, non-stop
Airbus A321neo (32Q)

Korean Air KE3009

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

Codeshare flight, operated by Delta Air Lines. (DL 474)

Duration: 5:22, non-stop
Airbus A321neo (32Q)

Korean Air KE3009

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

Codeshare flight, operated by Delta Air Lines. (DL 474)

Duration: 5:22, non-stop
Airbus A321neo (32Q)

Korean Air KE3009

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

Codeshare flight, operated by Delta Air Lines. (DL 474)

Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Korean Air KE3009

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

Codeshare flight, operated by Delta Air Lines. (DL 474)

Duration: 5:25, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Korean Air KE3143

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.

Korean Air KE3143

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.

Korean Air KE3143

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.

Korean Air KE3143

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.

Korean Air KE3143

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.

Korean Air KE3143

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.

Korean Air KE3143

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.

Korean Air KE3143

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.

Korean Air KE3143

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.

Korean Air KE3143

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.

Virgin Atlantic VS3325

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

Codeshare flight, operated by Delta Air Lines. (DL 459)

Duration: 5:39, non-stop
Airbus A321neo (32Q)

Virgin Atlantic VS3325

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

Codeshare flight, operated by Delta Air Lines. (DL 459)

Duration: 5:34, non-stop
Airbus A321neo (32Q)

Virgin Atlantic VS3325

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)

Virgin Atlantic VS3325

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)

Virgin Atlantic VS3325

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)

Virgin Atlantic VS3325

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)

Virgin Atlantic VS3325

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)

SAS SK3351

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

Codeshare flight, operated by Delta Air Lines. (DL 459)

Duration: 5:39, non-stop
Airbus A321neo (32Q)

SAS SK3351

07:20

Seattle-Tacoma (SEA)

15:54

Boston Logan (BOS) A

Effective 2025-09-08 through 2025-09-16

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 459)

Duration: 5:34, non-stop
Airbus A321neo (32Q)

SAS SK3351

07:20

Seattle-Tacoma (SEA)

15:54

Boston Logan (BOS) A

Effective 2025-09-18 through 2025-10-28

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 459)

Duration: 5:34, non-stop
Airbus A321neo (32Q)

SAS SK3351

07:20

Seattle-Tacoma (SEA)

15:54

Boston Logan (BOS) A

Effective 2025-10-29 through 2025-12-19

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 459)

Duration: 5:34, non-stop
Airbus A321neo (32Q)

SAS SK3351

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)

SAS SK3351

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)

SAS SK3351

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

07:20

Seattle-Tacoma (SEA)

15:59

Boston Logan (BOS) A

Effective 2025-07-07 through 2025-09-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 459)

Duration: 5:39, non-stop
Airbus A321neo (32Q)

Air France AF3534

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

Codeshare flight, operated by Delta Air Lines. (DL 459)

Duration: 5:34, non-stop
Airbus A321neo (32Q)

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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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