Korean Air
flight
KE 3978:
Boston Logan - Salt Lake City
Boston Logan - Salt Lake City
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Korean Air KE3978
Effective 2026-04-13 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 859)
Duration: 5:30, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Korean Air KE3978
Effective 2026-10-06 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 859)
Duration: 5:41, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Korean Air KE3978
Effective from 2026-10-26
Mon
Tue
-
-
Wed
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-
Thu
Fri
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-
Sat
Sun
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-
Codeshare flight, operated by Delta Air Lines.
(DL 859)
Duration: 5:41, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Korean Air KE3978
Valid until 2026-01-03
Mon
Tue
-
-
Wed
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-
Thu
Fri
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-
Sat
Sun
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-
Codeshare flight, operated by Delta Air Lines.
(DL 859)
Duration: 5:38, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Korean Air KE3978
Operates only on 2026-01-05
Mon
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
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Codeshare flight, operated by Delta Air Lines.
(DL 859)
Duration: 5:42, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Korean Air KE3978
Effective 2026-01-08 through 2026-03-07
Mon
Tue
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-
Wed
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-
Thu
Fri
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-
Sat
Sun
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-
Codeshare flight, operated by Delta Air Lines.
(DL 859)
Duration: 5:44, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Korean Air KE3978
Effective 2026-03-09 through 2026-03-28
Mon
Tue
-
-
Wed
-
-
Thu
Fri
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-
Sat
Sun
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-
Codeshare flight, operated by Delta Air Lines.
(DL 859)
Duration: 5:31, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Korean Air KE3978
Effective 2026-03-29 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 859)
Duration: 5:31, non-stop Airbus A321neo (32Q)
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Parallax here BOS-SLC
- KE 3978 is a domestic flight departing from the Boston Logan airport (BOS) and arriving at Salt Lake City airport (SLC).
- The flight distance is 2098 miles, or 3377 km.
- The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-7 . 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 5:30 and 5:44.