Korean Air
flight
KE 3521:
John Glenn Columbus - Atlanta
John Glenn Columbus - Atlanta
FLIGHT SCHEDULE
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-02-14 through 2026-02-21
Mon
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Tue
Wed
Thu
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Fri
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Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 426)
Duration: 1:52, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-02-24 through 2026-03-04
Mon
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Tue
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 426)
Duration: 1:52, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Korean Air KE3521
Operates only on 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 2909)
Duration: 1:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-01-05 through 2026-01-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2567)
Duration: 1:50, non-stop Airbus A321 (321)
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-01-19 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
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Codeshare flight, operated by Delta Air Lines.
(DL 1719)
Duration: 1:49, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-01-25 through 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 1719)
Duration: 1:49, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-03-08 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1453)
Duration: 1:44, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-04-13 through 2026-06-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1479)
Duration: 1:37, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-06-07 through 2026-08-14
Mon
Tue
Wed
Thu
Fri
Sat
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Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1479)
Duration: 1:34, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-08-15 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1479)
Duration: 1:34, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Korean Air KE3521
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1479)
Duration: 1:40, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Korean Air KE3521
Valid until 2026-01-01
Mon
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Tue
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Wed
Thu
Fri
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Sat
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Sun
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Codeshare flight, operated by Delta Air Lines.
(DL 2200)
Duration: 1:47, non-stop Boeing 717 (717)
Direct Codeshare Flights:
Korean Air KE3521
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 2892)
Duration: 1:50, non-stop Boeing 717 (717)
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-02-12 through 2026-02-20
Mon
Tue
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Wed
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Thu
Fri
Sat
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Sun
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Codeshare flight, operated by Delta Air Lines.
(DL 1529)
Duration: 2:00, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Korean Air KE3521
Effective 2026-02-22 through 2026-03-06
Mon
Tue
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Wed
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Thu
Fri
Sat
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Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1529)
Duration: 2:00, non-stop Boeing 737-800 (738)
- KE 3521 is a domestic flight departing from the John Glenn Columbus airport (CMH) and arriving at Atlanta airport (ATL).
- The flight distance is 447 miles, or 719 km.
- The timezone of both the departure and the arrival airports is UTC-5 . Current time at both airports is (loading...).
- For direct flights, the flight time varies between 1:34 and 2:00.