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

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 11:38 Seattle-Tacoma (SEA) 20:10 Boston Logan (BOS) C TAP Air Portugal TP 4478 Non-stop Airbus A321 (321) 5:32 Effective 2025-05-04 through 2025-06-05 Codeshare flight, operated by JetBlue.(B6 398)
Wed 15:40 Seattle-Tacoma (SEA) 00:06 Boston Logan (BOS) B Hawaiian Airlines HA 4813 Non-stop Boeing 737 MAX 9 (7M9) 5:26 Operates only on 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 493) The flight arrives 1 day after departure.
Daily 22:50 Seattle-Tacoma (SEA) 07:16 Boston Logan (BOS) B Hawaiian Airlines HA 4991 Non-stop Boeing 737 (737) 5:26 Effective from 2026-02-12 Codeshare flight, operated by Alaska Airlines.(AS 536) The flight arrives 1 day after departure.
Daily 23:00 Seattle-Tacoma (SEA) 07:20 Boston Logan (BOS) B Condor DE 5066 Non-stop Boeing 737-800 (73H) 5:20 Effective 2025-05-15 through 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 536) The flight arrives 1 day after departure.
Mon 23:34 Seattle-Tacoma (SEA) 08:00 Boston Logan (BOS) B Condor DE 5066 Non-stop Boeing 737 (73J) 5:26 Effective 2025-09-08 through 2025-09-15 Codeshare flight, operated by Alaska Airlines.(AS 536) The flight arrives 1 day after departure.
Sat 11:30 Seattle-Tacoma (SEA) 19:57 Boston Logan (BOS) C Aer Lingus EI 5267 Non-stop Airbus A321 (321) 5:27 Operates only on 2025-10-25 Codeshare flight, operated by JetBlue.(B6 398)
Daily 21:50 Seattle-Tacoma (SEA) 06:12 Boston Logan (BOS) C Aer Lingus EI 5267 Non-stop Airbus A320 (320) 5:22 Effective 2025-06-12 through 2025-09-02 Codeshare flight, operated by JetBlue.(B6 198) The flight arrives 1 day after departure.
Daily 21:40 Seattle-Tacoma (SEA) 05:57 Boston Logan (BOS) C Aer Lingus EI 5271 Non-stop Airbus A220-300 (223) 5:17 Effective from 2026-02-11 Codeshare flight, operated by JetBlue.(B6 498) The flight arrives 1 day after departure.
Mon,Wed-Sun 22:20 Seattle-Tacoma (SEA) 06:37 Boston Logan (BOS) C Aer Lingus EI 5271 Non-stop Airbus A220-300 (223) 5:17 Effective 2025-12-18 through 2025-12-29 Codeshare flight, operated by JetBlue.(B6 498) The flight arrives 1 day after departure.
Daily 22:20 Seattle-Tacoma (SEA) 06:37 Boston Logan (BOS) C Aer Lingus EI 5271 Non-stop Airbus A220-300 (223) 5:17 Effective 2025-12-30 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 Aer Lingus EI 5271 Non-stop Airbus A220-300 (223) 5:17 Effective 2026-01-11 through 2026-02-10 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 Aer Lingus EI 5271 Non-stop Airbus A321 (321) 5:17 Effective 2025-11-02 through 2025-12-17 Codeshare flight, operated by JetBlue.(B6 498) The flight arrives 1 day after departure.
Wed 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A LATAM Airlines LA 6134 Non-stop Airbus A320 (320) 5:34 Effective 2025-10-08 through 2025-10-22 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Fri 15:55 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B Hawaiian Airlines HA 6150 Non-stop Boeing 737 (737) 5:28 Operates only on 2025-10-03 Codeshare flight, operated by Alaska Airlines.(AS 421) The flight arrives 1 day after departure.
Thu 10:26 Seattle-Tacoma (SEA) 18:59 Boston Logan (BOS) B Hawaiian Airlines HA 6163 Non-stop Boeing 737 MAX 9 (7M9) 5:33 Operates only on 2025-05-15 Codeshare flight, operated by Alaska Airlines.(AS 591)
Sun 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A LATAM Airlines LA 6178 Non-stop Airbus A320 (320) 5:34 Effective 2025-10-12 through 2025-10-19 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Fri 22:15 Seattle-Tacoma (SEA) 06:40 Boston Logan (BOS) A LATAM Airlines LA 6196 Non-stop Airbus A320 (320) 5:25 Effective 2025-06-13 through 2025-06-27 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Fri 22:00 Seattle-Tacoma (SEA) 06:31 Boston Logan (BOS) A LATAM Airlines LA 6197 Non-stop Airbus A320 (320) 5:31 Effective 2025-08-01 through 2025-08-08 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Fri 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A LATAM Airlines LA 6197 Non-stop Airbus A320 (320) 5:34 Effective 2025-09-12 through 2025-09-26 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Thu,Sun 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A LATAM Airlines LA 6229 Non-stop Airbus A320 (320) 5:34 Effective 2025-10-30 through 2025-11-09 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Wed,Thu,Sun 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A LATAM Airlines LA 6229 Non-stop Airbus A320 (320) 5:34 Effective 2025-11-12 through 2025-12-18 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Daily 15:35 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 (73J) 5:24 Effective from 2025-10-04 Codeshare flight, operated by Alaska Airlines.(AS 460)
Tue,Wed,Sat 15:36 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:23 Valid until 2025-05-10 Codeshare flight, operated by Alaska Airlines.(AS 460)
Tue 15:36 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 (73J) 5:23 Operates only on 2025-05-13 Codeshare flight, operated by Alaska Airlines.(AS 460)
Wed 15:36 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:23 Operates only on 2025-05-14 Codeshare flight, operated by Alaska Airlines.(AS 460)
Daily 15:40 Seattle-Tacoma (SEA) 00:06 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:26 Effective 2025-05-15 through 2025-05-28 Codeshare flight, operated by Alaska Airlines.(AS 460) The flight arrives 1 day after departure.
Thu 15:40 Seattle-Tacoma (SEA) 00:06 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 (73J) 5:26 Operates only on 2025-05-29 Codeshare flight, operated by Alaska Airlines.(AS 460) The flight arrives 1 day after departure.
Daily 15:40 Seattle-Tacoma (SEA) 00:06 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:26 Effective 2025-05-30 through 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 460) The flight arrives 1 day after departure.
Daily 15:43 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:16 Effective 2025-06-12 through 2025-08-18 Codeshare flight, operated by Alaska Airlines.(AS 460)
Tue 15:43 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 (73J) 5:16 Operates only on 2025-08-19 Codeshare flight, operated by Alaska Airlines.(AS 460)
Mon,Thu,Fri,Sun 15:49 Seattle-Tacoma (SEA) 00:12 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:23 Valid until 2025-05-12 Codeshare flight, operated by Alaska Airlines.(AS 461) The flight arrives 1 day after departure.
Daily 15:55 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B Korean Air KE 6259 Non-stop Boeing 737 (73J) 5:28 Effective 2025-08-20 through 2025-10-03 Codeshare flight, operated by Alaska Airlines.(AS 460) The flight arrives 1 day after departure.
Wed 22:00 Seattle-Tacoma (SEA) 06:31 Boston Logan (BOS) A LATAM Airlines LA 6263 Non-stop Airbus A320 (320) 5:31 Effective 2025-07-09 through 2025-07-30 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Wed,Sun 22:00 Seattle-Tacoma (SEA) 06:31 Boston Logan (BOS) A LATAM Airlines LA 6263 Non-stop Airbus A320 (320) 5:31 Effective 2025-08-03 through 2025-09-07 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Wed,Sun 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A LATAM Airlines LA 6263 Non-stop Airbus A320 (320) 5:34 Effective 2025-09-10 through 2025-10-05 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Wed 22:15 Seattle-Tacoma (SEA) 06:40 Boston Logan (BOS) A LATAM Airlines LA 6263 Non-stop Airbus A320 (320) 5:25 Operates only on 2025-07-02 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Thu 10:58 Seattle-Tacoma (SEA) 19:19 Boston Logan (BOS) B Hawaiian Airlines HA 6291 Non-stop Boeing 737 MAX 9 (7M9) 5:21 Operates only on 2025-06-12 Codeshare flight, operated by Alaska Airlines.(AS 1320)
Daily 15:35 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B JAL JL 6356 Non-stop Boeing 737 (73J) 5:24 Effective from 2025-10-04 Codeshare flight, operated by Alaska Airlines.(AS 460)
Tue,Wed,Sat 15:36 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B JAL JL 6356 Non-stop Boeing 737 MAX 9 (7M9) 5:23 Valid until 2025-05-10 Codeshare flight, operated by Alaska Airlines.(AS 460)
Tue 15:36 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B JAL JL 6356 Non-stop Boeing 737 (73J) 5:23 Operates only on 2025-05-13 Codeshare flight, operated by Alaska Airlines.(AS 460)
Wed 15:36 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B JAL JL 6356 Non-stop Boeing 737 MAX 9 (7M9) 5:23 Operates only on 2025-05-14 Codeshare flight, operated by Alaska Airlines.(AS 460)
Daily 15:40 Seattle-Tacoma (SEA) 00:06 Boston Logan (BOS) B JAL JL 6356 Non-stop Boeing 737 MAX 9 (7M9) 5:26 Effective 2025-05-15 through 2025-05-28 Codeshare flight, operated by Alaska Airlines.(AS 460) The flight arrives 1 day after departure.
Thu 15:40 Seattle-Tacoma (SEA) 00:06 Boston Logan (BOS) B JAL JL 6356 Non-stop Boeing 737 (73J) 5:26 Operates only on 2025-05-29 Codeshare flight, operated by Alaska Airlines.(AS 460) The flight arrives 1 day after departure.
Daily 15:40 Seattle-Tacoma (SEA) 00:06 Boston Logan (BOS) B JAL JL 6356 Non-stop Boeing 737 MAX 9 (7M9) 5:26 Effective 2025-05-30 through 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 460) The flight arrives 1 day after departure.
Daily 15:43 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B JAL JL 6356 Non-stop Boeing 737 MAX 9 (7M9) 5:16 Effective 2025-06-12 through 2025-08-19 Codeshare flight, operated by Alaska Airlines.(AS 460)
Mon,Thu,Fri,Sun 15:49 Seattle-Tacoma (SEA) 00:12 Boston Logan (BOS) B JAL JL 6356 Non-stop Boeing 737 MAX 9 (7M9) 5:23 Valid until 2025-05-12 Codeshare flight, operated by Alaska Airlines.(AS 461) The flight arrives 1 day after departure.
Daily 15:55 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B JAL JL 6356 Non-stop Boeing 737 (73J) 5:28 Effective 2025-08-20 through 2025-10-03 Codeshare flight, operated by Alaska Airlines.(AS 460) The flight arrives 1 day after departure.
Sat 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A LATAM Airlines LA 6384 Non-stop Airbus A320 (320) 5:34 Operates only on 2025-10-25 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Sat 22:00 Seattle-Tacoma (SEA) 06:34 Boston Logan (BOS) A LATAM Airlines LA 6395 Non-stop Airbus A320 (320) 5:34 Operates only on 2025-10-04 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.
Sat 22:05 Seattle-Tacoma (SEA) 06:31 Boston Logan (BOS) A LATAM Airlines LA 6407 Non-stop Airbus A320 (320) 5:26 Valid until 2025-05-03 Codeshare flight, operated by Delta Air Lines.(DL 473) The flight arrives 1 day after departure.

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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:

TAP Air Portugal TP4478

11:38

Seattle-Tacoma (SEA)

20:10

Boston Logan (BOS) C

Effective 2025-05-04 through 2025-06-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by JetBlue. (B6 398)

Duration: 5:32, non-stop
Airbus A321 (321)

Hawaiian Airlines HA4813

15:40

Seattle-Tacoma (SEA)

00:06(+1)

Boston Logan (BOS) B

Operates only on 2025-06-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 493)

Duration: 5:26, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Hawaiian Airlines HA4991

22:50

Seattle-Tacoma (SEA)

07:16(+1)

Boston Logan (BOS) B

Effective from 2026-02-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

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

Duration: 5:26, non-stop
Boeing 737 (737)
The flight arrives 1 day after departure.

Condor DE5066

23:00

Seattle-Tacoma (SEA)

07:20(+1)

Boston Logan (BOS) B

Effective 2025-05-15 through 2025-06-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

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

Duration: 5:20, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Condor DE5066

23:34

Seattle-Tacoma (SEA)

08:00(+1)

Boston Logan (BOS) B

Effective 2025-09-08 through 2025-09-15

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Duration: 5:26, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Aer Lingus EI5267

11:30

Seattle-Tacoma (SEA)

19:57

Boston Logan (BOS) C

Operates only on 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)

Aer Lingus EI5267

21:50

Seattle-Tacoma (SEA)

06:12(+1)

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 198)

Duration: 5:22, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

Aer Lingus EI5271

21:40

Seattle-Tacoma (SEA)

05:57(+1)

Boston Logan (BOS) C

Effective from 2026-02-11

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.

Aer Lingus EI5271

22:20

Seattle-Tacoma (SEA)

06:37(+1)

Boston Logan (BOS) C

Effective 2025-12-18 through 2025-12-29

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.

Aer Lingus EI5271

22:20

Seattle-Tacoma (SEA)

06:37(+1)

Boston Logan (BOS) C

Effective 2025-12-30 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.

Aer Lingus EI5271

22:20

Seattle-Tacoma (SEA)

06:37(+1)

Boston Logan (BOS) C

Effective 2026-01-11 through 2026-02-10

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.

Aer Lingus EI5271

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 A321 (321)
The flight arrives 1 day after departure.

LATAM Airlines LA6134

22:00

Seattle-Tacoma (SEA)

06:34(+1)

Boston Logan (BOS) A

Effective 2025-10-08 through 2025-10-22

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:34, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

Hawaiian Airlines HA6150

15:55

Seattle-Tacoma (SEA)

00:23(+1)

Boston Logan (BOS) B

Operates only on 2025-10-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 421)

Duration: 5:28, non-stop
Boeing 737 (737)
The flight arrives 1 day after departure.

Hawaiian Airlines HA6163

10:26

Seattle-Tacoma (SEA)

18:59

Boston Logan (BOS) B

Operates only on 2025-05-15

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 591)

Duration: 5:33, non-stop
Boeing 737 MAX 9 (7M9)

LATAM Airlines LA6178

22:00

Seattle-Tacoma (SEA)

06:34(+1)

Boston Logan (BOS) A

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:34, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

LATAM Airlines LA6196

22:15

Seattle-Tacoma (SEA)

06:40(+1)

Boston Logan (BOS) A

Effective 2025-06-13 through 2025-06-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:25, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

LATAM Airlines LA6197

22:00

Seattle-Tacoma (SEA)

06:31(+1)

Boston Logan (BOS) A

Effective 2025-08-01 through 2025-08-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:31, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

LATAM Airlines LA6197

22:00

Seattle-Tacoma (SEA)

06:34(+1)

Boston Logan (BOS) A

Effective 2025-09-12 through 2025-09-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:34, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

LATAM Airlines LA6229

22:00

Seattle-Tacoma (SEA)

06:34(+1)

Boston Logan (BOS) A

Effective 2025-10-30 through 2025-11-09

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:34, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

LATAM Airlines LA6229

22:00

Seattle-Tacoma (SEA)

06:34(+1)

Boston Logan (BOS) A

Effective 2025-11-12 through 2025-12-18

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:34, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

Korean Air KE6259

15:35

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Effective from 2025-10-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 460)

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

Korean Air KE6259

15:36

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Valid until 2025-05-10

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:23, non-stop
Boeing 737 MAX 9 (7M9)

Korean Air KE6259

15:36

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Operates only on 2025-05-13

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:23, non-stop
Boeing 737 (73J)

Korean Air KE6259

15:36

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Operates only on 2025-05-14

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:23, non-stop
Boeing 737 MAX 9 (7M9)

Korean Air KE6259

15:40

Seattle-Tacoma (SEA)

00:06(+1)

Boston Logan (BOS) B

Effective 2025-05-15 through 2025-05-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:26, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Korean Air KE6259

15:40

Seattle-Tacoma (SEA)

00:06(+1)

Boston Logan (BOS) B

Operates only on 2025-05-29

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:26, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Korean Air KE6259

15:40

Seattle-Tacoma (SEA)

00:06(+1)

Boston Logan (BOS) B

Effective 2025-05-30 through 2025-06-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:26, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Korean Air KE6259

15:43

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Effective 2025-06-12 through 2025-08-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:16, non-stop
Boeing 737 MAX 9 (7M9)

Korean Air KE6259

15:43

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Operates only on 2025-08-19

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:16, non-stop
Boeing 737 (73J)

Korean Air KE6259

15:49

Seattle-Tacoma (SEA)

00:12(+1)

Boston Logan (BOS) B

Valid until 2025-05-12

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 461)

Duration: 5:23, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Korean Air KE6259

15:55

Seattle-Tacoma (SEA)

00:23(+1)

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 460)

Duration: 5:28, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

LATAM Airlines LA6263

22:00

Seattle-Tacoma (SEA)

06:31(+1)

Boston Logan (BOS) A

Effective 2025-07-09 through 2025-07-30

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:31, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

LATAM Airlines LA6263

22:00

Seattle-Tacoma (SEA)

06:31(+1)

Boston Logan (BOS) A

Effective 2025-08-03 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 A320 (320)
The flight arrives 1 day after departure.

LATAM Airlines LA6263

22:00

Seattle-Tacoma (SEA)

06:34(+1)

Boston Logan (BOS) A

Effective 2025-09-10 through 2025-10-05

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:34, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

LATAM Airlines LA6263

22:15

Seattle-Tacoma (SEA)

06:40(+1)

Boston Logan (BOS) A

Operates only on 2025-07-02

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:25, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

Hawaiian Airlines HA6291

10:58

Seattle-Tacoma (SEA)

19:19

Boston Logan (BOS) B

Operates only on 2025-06-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 1320)

Duration: 5:21, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL6356

15:35

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Effective from 2025-10-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 460)

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

JAL JL6356

15:36

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Valid until 2025-05-10

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:23, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL6356

15:36

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Operates only on 2025-05-13

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:23, non-stop
Boeing 737 (73J)

JAL JL6356

15:36

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Operates only on 2025-05-14

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:23, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL6356

15:40

Seattle-Tacoma (SEA)

00:06(+1)

Boston Logan (BOS) B

Effective 2025-05-15 through 2025-05-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:26, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

JAL JL6356

15:40

Seattle-Tacoma (SEA)

00:06(+1)

Boston Logan (BOS) B

Operates only on 2025-05-29

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:26, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

JAL JL6356

15:40

Seattle-Tacoma (SEA)

00:06(+1)

Boston Logan (BOS) B

Effective 2025-05-30 through 2025-06-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:26, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

JAL JL6356

15:43

Seattle-Tacoma (SEA)

23:59

Boston Logan (BOS) B

Effective 2025-06-12 through 2025-08-19

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 460)

Duration: 5:16, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL6356

15:49

Seattle-Tacoma (SEA)

00:12(+1)

Boston Logan (BOS) B

Valid until 2025-05-12

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 461)

Duration: 5:23, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

JAL JL6356

15:55

Seattle-Tacoma (SEA)

00:23(+1)

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 460)

Duration: 5:28, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

LATAM Airlines LA6384

22:00

Seattle-Tacoma (SEA)

06:34(+1)

Boston Logan (BOS) A

Operates only on 2025-10-25

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:34, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

LATAM Airlines LA6395

22:00

Seattle-Tacoma (SEA)

06:34(+1)

Boston Logan (BOS) A

Operates only on 2025-10-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:34, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

LATAM Airlines LA6407

22:05

Seattle-Tacoma (SEA)

06:31(+1)

Boston Logan (BOS) A

Valid until 2025-05-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 473)

Duration: 5:26, non-stop
Airbus A320 (320)
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 5:16 and 5:39.

Return (BOS-SEA) flights

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