KLM
flight
KL 7521:
Multiple routes
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FLIGHT SCHEDULE
Direct Codeshare Flights:
KLM KL7521
Effective 2026-03-29 through 2026-04-24
Mon
Tue
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Wed
Thu
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Fri
Sat
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Sun
Codeshare flight, operated by Delta Air Lines.
(DL 352)
Duration: 4:21, non-stop Boeing 757 (757)
Direct Codeshare Flights:
KLM KL7521
Effective 2026-01-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2929)
Duration: 2:29, non-stop Boeing 717 (717)
Direct Codeshare Flights:
KLM KL7521
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2929)
Duration: 2:31, non-stop Boeing 717 (717)
Direct Codeshare Flights:
KLM KL7521
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2929)
Duration: 2:31, non-stop Boeing 717 (717)
Direct Codeshare Flights:
KLM KL7521
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2929)
Duration: 2:37, non-stop Boeing 717 (717)
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This flight number is listed as serving the following routes:
- Cyril E. King, Saint Thomas Island (STT) - Boston Logan (BOS)
- Minneapolis/Saint Paul (MSP) - Charlotte (CLT)