KLM
flight
KL 6601:
Multiple routes
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FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL6601
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 3745)
Duration: 2:04, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-03-29 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 3910)
Duration: 1:41, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-04-13 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5517)
Duration: 1:37, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-10-06 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 5517)
Duration: 1:38, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-02-14 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 1027)
Duration: 2:26, non-stop Airbus A320 (320)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-01-10 through 2026-01-17
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 1027)
Duration: 2:26, non-stop Airbus A319 (319)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-01-24 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 1027)
Duration: 2:26, non-stop Airbus A320 (320)
Direct Codeshare Flights:
KLM KL6601
Operates only on 2026-01-18
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 1027)
Duration: 2:30, non-stop Airbus A320 (320)
Direct Codeshare Flights:
KLM KL6601
Valid until 2026-01-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1027)
Duration: 2:27, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
KLM KL6601
Operates only on 2026-01-04
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 1027)
Duration: 2:29, non-stop Airbus A319 (319)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-02-12 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1027)
Duration: 2:30, non-stop Airbus A320 (320)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-01-05 through 2026-01-15
Mon
Tue
Wed
Thu
Fri
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-
Sat
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Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1027)
Duration: 2:30, non-stop Airbus A319 (319)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-01-09 through 2026-01-16
Mon
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Tue
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Wed
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Thu
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Fri
Sat
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Sun
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Codeshare flight, operated by Delta Air Lines.
(DL 1027)
Duration: 2:30, non-stop Airbus A320 (320)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1027)
Duration: 2:30, non-stop Airbus A320 (320)
Direct Codeshare Flights:
KLM KL6601
Effective 2026-01-19 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 1027)
Duration: 2:27, non-stop Airbus A320 (320)
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This flight number is listed as serving the following routes:
- Atlanta (ATL) - Burlington (BTV)
- Tucson (TUS) - Salt Lake City (SLC)
- Washington Dulles (IAD) - Detroit (DTW)