Korean Air
flight
KE 3421:
Boston Logan - Dallas Fort Worth
Boston Logan - Dallas Fort Worth
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Korean Air KE3421
Effective 2026-04-13 through 2026-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 760)
Duration: 4:21, non-stop Airbus A220-100 (221)
Direct Codeshare Flights:
Korean Air KE3421
Effective 2026-05-07 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 760)
Duration: 4:21, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Korean Air KE3421
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 760)
Duration: 4:36, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Korean Air KE3421
Effective 2026-01-24 through 2026-02-07
Mon
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Tue
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-
Wed
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Thu
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Fri
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Sat
Sun
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Codeshare flight, operated by Delta Air Lines.
(DL 760)
Duration: 4:50, non-stop Airbus A220-100 (221)
Direct Codeshare Flights:
Korean Air KE3421
Effective 2026-01-10 through 2026-01-17
Mon
-
-
Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Codeshare flight, operated by Delta Air Lines.
(DL 760)
Duration: 4:51, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Korean Air KE3421
Operates only on 2026-01-18
Mon
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-
Tue
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-
Wed
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Thu
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Fri
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Sat
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-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 760)
Duration: 4:51, non-stop Airbus A319 (319)
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Parallax here BOS-DFW
- KE 3421 is a domestic flight departing from the Boston Logan airport (BOS) and arriving at Dallas Fort Worth airport (DFW).
- The flight distance is 1558 miles, or 2507 km.
- The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-6 . 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 4:21 and 4:51.