Korean Air flight KE 6259: Seattle-Tacoma - Boston Logan

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Wed 15:35 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:24 Operates only on 2026-03-18
Codeshare flight, operated by Alaska Airlines.(AS 460)
Daily 15:35 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:19 Effective 2026-03-19 through 2026-05-12
Codeshare flight, operated by Alaska Airlines.(AS 460)
Mon-Thu,Sat,Sun 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-01-07 through 2026-01-13
Codeshare flight, operated by Alaska Airlines.(AS 460)
Wed-Fri 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:14 Effective 2026-01-09 through 2026-01-15
Codeshare flight, operated by Alaska Airlines.(AS 460)
Mon,Tue,Thu-Sun 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-01-16 through 2026-01-27
Codeshare flight, operated by Alaska Airlines.(AS 460)
Wed 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:14 Effective 2026-01-21 through 2026-02-04
Codeshare flight, operated by Alaska Airlines.(AS 460)
Thu 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737-800 (73H) 5:14 Operates only on 2026-01-29
Codeshare flight, operated by Alaska Airlines.(AS 460)
Mon,Tue,Fri-Sun 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Effective 2026-01-30 through 2026-02-10
Codeshare flight, operated by Alaska Airlines.(AS 460)
Thu 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:14 Operates only on 2026-02-05
Codeshare flight, operated by Alaska Airlines.(AS 460)
Wed 15:40 Seattle-Tacoma (SEA) 23:54 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:14 Operates only on 2026-02-11
Codeshare flight, operated by Alaska Airlines.(AS 460)
Daily 15:40 Seattle-Tacoma (SEA) 00:06 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:26 Effective 2026-05-13 through 2026-06-09
Codeshare flight, operated by Alaska Airlines.(AS 460)
The flight arrives 1 day after departure.
Mon-Sat 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:17 Effective 2026-02-12 through 2026-02-18
Codeshare flight, operated by Alaska Airlines.(AS 460)
Sun 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737-800 (73H) 5:17 Effective 2026-02-15 through 2026-02-22
Codeshare flight, operated by Alaska Airlines.(AS 460)
Wed,Thu 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:17 Effective 2026-02-19 through 2026-02-26
Codeshare flight, operated by Alaska Airlines.(AS 460)
Mon,Tue,Fri,Sat 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:17 Effective 2026-02-20 through 2026-03-03
Codeshare flight, operated by Alaska Airlines.(AS 460)
Wed-Sun 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:17 Effective 2026-03-01 through 2026-03-07
Codeshare flight, operated by Alaska Airlines.(AS 460)
Mon,Tue,Fri,Sun 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:17 Effective 2026-03-08 through 2026-03-13
Codeshare flight, operated by Alaska Airlines.(AS 460)
Tue-Thu,Sat,Sun 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:17 Effective 2026-03-11 through 2026-03-17
Codeshare flight, operated by Alaska Airlines.(AS 460)
Mon 15:42 Seattle-Tacoma (SEA) 23:59 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:17 Operates only on 2026-03-16
Codeshare flight, operated by Alaska Airlines.(AS 460)
Daily 15:43 Seattle-Tacoma (SEA) 00:05 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:22 Effective from 2026-06-10
Codeshare flight, operated by Alaska Airlines.(AS 460)
The flight arrives 1 day after departure.
Mon-Wed,Fri,Sun 15:59 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:24 Valid until 2026-01-04
Codeshare flight, operated by Alaska Airlines.(AS 460)
The flight arrives 1 day after departure.
Thu,Sat 15:59 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 (73J) 5:24 Valid until 2026-01-03
Codeshare flight, operated by Alaska Airlines.(AS 460)
The flight arrives 1 day after departure.
Mon 15:59 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737-800 (73H) 5:24 Operates only on 2026-01-05
Codeshare flight, operated by Alaska Airlines.(AS 460)
The flight arrives 1 day after departure.
Tue 15:59 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B
KE 6259 Non-stop Boeing 737 MAX 9 (7M9) 5:24 Operates only on 2026-01-06
Codeshare flight, operated by Alaska Airlines.(AS 456)
The flight arrives 1 day after departure.


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Korean Air flight KE 6259:
Seattle-Tacoma - Boston Logan
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Korean Air KE6259
15:35
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) B
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:24, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Korean Air KE6259
15:35
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) B
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:19, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Korean Air KE6259
15:40
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) B
Effective 2026-01-07 through 2026-01-13
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Korean Air KE6259
15:40
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) B
Effective 2026-01-09 through 2026-01-15
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:14, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Korean Air KE6259
15:40
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) B
Effective 2026-01-16 through 2026-01-27
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Korean Air KE6259
15:40
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) B
Effective 2026-01-21 through 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:14, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Korean Air KE6259
15:40
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) B
Operates only on 2026-01-29
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:14, non-stop
Boeing 737-800 (73H)
Direct Codeshare Flights:
Korean Air KE6259
15:40
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) B
Effective 2026-01-30 through 2026-02-10
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Korean Air KE6259
15:40
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) B
Operates only on 2026-02-05
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:14, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Korean Air KE6259
15:40
Seattle-Tacoma (SEA)

23:54
Boston Logan (BOS) B
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:14, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Korean Air KE6259
15:40
Seattle-Tacoma (SEA)

00:06(+1)
Boston Logan (BOS) B
Effective 2026-05-13 through 2026-06-09
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.
Direct Codeshare Flights:
Korean Air KE6259
15:42
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) B
Effective 2026-02-12 through 2026-02-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:17, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Korean Air KE6259
15:42
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) B
Effective 2026-02-15 through 2026-02-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:17, non-stop
Boeing 737-800 (73H)
Direct Codeshare Flights:
Korean Air KE6259
15:42
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) B
Effective 2026-02-19 through 2026-02-26
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:17, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Korean Air KE6259
15:42
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) B
Effective 2026-02-20 through 2026-03-03
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:17, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Korean Air KE6259
15:42
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) B
Effective 2026-03-01 through 2026-03-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:17, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Korean Air KE6259
15:42
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) B
Effective 2026-03-08 through 2026-03-13
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:17, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Korean Air KE6259
15:42
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) B
Effective 2026-03-11 through 2026-03-17
Mon
-
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:17, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Korean Air KE6259
15:42
Seattle-Tacoma (SEA)

23:59
Boston Logan (BOS) B
Operates only on 2026-03-16
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:17, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Korean Air KE6259
15:43
Seattle-Tacoma (SEA)

00:05(+1)
Boston Logan (BOS) B
Effective from 2026-06-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:22, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Korean Air KE6259
15:59
Seattle-Tacoma (SEA)

00:23(+1)
Boston Logan (BOS) B
Valid until 2026-01-04
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:24, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Korean Air KE6259
15:59
Seattle-Tacoma (SEA)

00:23(+1)
Boston Logan (BOS) B
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:24, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Korean Air KE6259
15:59
Seattle-Tacoma (SEA)

00:23(+1)
Boston Logan (BOS) B
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 460)
Duration: 5:24, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Korean Air KE6259
15:59
Seattle-Tacoma (SEA)

00:23(+1)
Boston Logan (BOS) B
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 456)
Duration: 5:24, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
  • KE 6259 is a domestic flight 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 5:26.
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