Korean Air
flight
KE 3644:
San Francisco - Atlanta
San Francisco - Atlanta
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
FLIGHT SCHEDULE
Direct Codeshare Flights:
Korean Air KE3644
Effective 2026-01-19 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 785)
Duration: 4:40, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Korean Air KE3644
Effective 2026-01-05 through 2026-01-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 785)
Duration: 4:43, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Korean Air KE3644
Effective 2026-02-12 through 2026-03-07
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 785)
Duration: 4:43, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Korean Air KE3644
Effective 2026-02-17 through 2026-03-04
Mon
-
-
Tue
Wed
Thu
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-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 785)
Duration: 4:43, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Korean Air KE3644
Effective 2026-01-24 through 2026-02-07
Mon
-
-
Tue
-
-
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 785)
Duration: 4:45, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Korean Air KE3644
Valid until 2026-01-04
Mon
Tue
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 785)
Duration: 4:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Korean Air KE3644
Valid until 2026-01-03
Mon
-
-
Tue
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Wed
Thu
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-
Fri
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-
Sat
Sun
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-
Codeshare flight, operated by Delta Air Lines.
(DL 785)
Duration: 4:37, non-stop Boeing 757 (757)
Direct Codeshare Flights:
Korean Air KE3644
Effective 2026-04-13 through 2026-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 715)
Duration: 4:53, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
Korean Air KE3644
Effective 2026-07-07 through 2026-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 531)
Duration: 4:55, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
Korean Air KE3644
Effective 2026-09-08 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 531)
Duration: 4:49, non-stop Boeing 767 (76W)
Direct Codeshare Flights:
Korean Air KE3644
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 531)
Duration: 4:39, non-stop Boeing 767 (76W)
Direct Codeshare Flights:
Korean Air KE3644
Effective 2026-03-08 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 715)
Duration: 4:40, non-stop Boeing 767 (76W)
Direct Codeshare Flights:
Korean Air KE3644
Effective 2026-03-14 through 2026-04-11
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 531)
Duration: 4:40, non-stop Boeing 757 (757)
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Parallax here SFO-ATL
- KE 3644 is a domestic flight departing from the San Francisco airport (SFO) and arriving at Atlanta airport (ATL).
- The flight distance is 2133 miles, or 3432 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 4:37 and 4:55.