Korean Air
flight
KE 3971:
Boston Logan - Milwaukee
Boston Logan - Milwaukee
FLIGHT SCHEDULE
Direct Codeshare Flights:
Korean Air KE3971
Valid until 2026-01-01
Mon
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Tue
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Wed
Thu
Fri
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Sun
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Codeshare flight, operated by Delta Air Lines.
(DL 5614)
Duration: 2:52, non-stop Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Korean Air KE3971
Valid until 2026-01-04
Mon
Tue
Wed
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Thu
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Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5614)
Duration: 2:52, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE3971
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 5619)
Duration: 2:58, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE3971
Effective 2026-02-14 through 2026-02-21
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
Codeshare flight, operated by Delta Air Lines.
(DL 5619)
Duration: 2:56, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE3971
Effective 2026-02-28 through 2026-03-07
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 5619)
Duration: 2:56, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE3971
Effective 2026-03-08 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
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Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5619)
Duration: 2:50, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE3971
Effective 2026-04-13 through 2026-05-22
Mon
Tue
Wed
Thu
Fri
Sat
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-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5619)
Duration: 2:52, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE3971
Effective 2026-05-25 through 2026-09-04
Mon
Tue
Wed
Thu
Fri
Sat
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-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5619)
Duration: 2:52, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE3971
Effective 2026-09-07 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
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-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5619)
Duration: 2:52, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE3971
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
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-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5619)
Duration: 2:54, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE3971
Effective 2026-01-10 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 5619)
Duration: 3:04, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Korean Air KE3971
Operates only on 2026-02-08
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 5619)
Duration: 3:04, non-stop Embraer EMB 175 (E75)
- KE 3971 is a domestic flight departing from the Boston Logan airport (BOS) and arriving at Milwaukee airport (MKE).
- The flight distance is 857 miles, or 1379 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 2:50 and 3:04.