KLM
flight
KL 6504:
Multiple routes
FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL6504
Operates only on 2026-01-11
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 2453)
Duration: 2:18, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6504
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5032)
Duration: 2:08, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
KLM KL6504
Effective 2026-06-07 through 2026-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1147)
Duration: 2:01, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6504
Effective 2026-07-07 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1147)
Duration: 2:02, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6504
Effective 2026-10-06 through 2026-10-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1147)
Duration: 2:04, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6504
Effective 2026-03-29 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
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Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1147)
Duration: 2:03, non-stop Airbus A321 (321)
Direct Codeshare Flights:
KLM KL6504
Effective 2026-04-13 through 2026-06-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1147)
Duration: 2:01, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
KLM KL6504
Effective 2026-04-04 through 2026-04-11
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 1147)
Duration: 1:54, non-stop Boeing 737-900 (739)
This flight number is listed as serving the following routes:
- Chicago O'Hare (ORD) - Atlanta (ATL)
- Grand Rapids (GRR) - Atlanta (ATL)
- Savannah (SAV) - New York John F. Kennedy (JFK)