Korean Air
flight
KE 3143:
Seattle-Tacoma - Boston Logan
Seattle-Tacoma - Boston Logan
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Korean Air KE3143
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
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
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
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
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
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
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
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
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
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.
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Parallax here SEA-BOS
- KE 3143 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 5:25 and 5:34.