KLM
flug
KL 6521:
Multiple routes
FLUGPLAN
Direkte Codeshareflüge:
KLM KL6521
Effective 2026-01-05 through 2026-02-11
Mo
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Mi
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Fr
Sa
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Codeshare flight, operated by Delta Air Lines.
(DL 5436)
Duration: 1:26, non-stop Canadair CRJ 900 (CR9)
Direkte Codeshareflüge:
KLM KL6521
Effective 2026-02-12 through 2026-03-07
Mo
Di
Mi
Do
Fr
Sa
So
Codeshare flight, operated by Delta Air Lines.
(DL 5436)
Duration: 1:24, non-stop Canadair CRJ 900 (CR9)
Direkte Codeshareflüge:
KLM KL6521
Effective 2026-04-13 through 2026-10-05
Mo
Di
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Mi
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Fr
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Sa
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Codeshare flight, operated by Delta Air Lines.
(DL 5674)
Duration: 1:54, non-stop Embraer EMB 175 (E75)
Direkte Codeshareflüge:
KLM KL6521
Effective 2026-10-08 through 2026-10-22
Mo
Di
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Mi
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Do
Fr
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Sa
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Codeshare flight, operated by Delta Air Lines.
(DL 5674)
Duration: 1:52, non-stop Embraer EMB 175 (E75)
Direkte Codeshareflüge:
KLM KL6521
Effective 2026-04-18 through 2026-06-06
Mo
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Mi
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Do
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Fr
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Codeshare flight, operated by Delta Air Lines.
(DL 5674)
Duration: 1:54, non-stop Embraer EMB 175 (E75)
Direkte Codeshareflüge:
KLM KL6521
Effective 2026-03-29 through 2026-04-12
Mo
Di
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Mi
Do
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Fr
Sa
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So
Codeshare flight, operated by Delta Air Lines.
(DL 5641)
Duration: 1:50, non-stop Embraer EMB 175 (E75)
Direkte Codeshareflüge:
KLM KL6521
Effective from 2026-10-25
Mo
Di
Mi
Do
Fr
Sa
So
Codeshare flight, operated by Delta Air Lines.
(DL 3770)
Duration: 1:28, non-stop Embraer EMB 175 (E7W)
Direkte Codeshareflüge:
KLM KL6521
Effective 2026-04-15 through 2026-05-22
Mo
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Di
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Mi
Do
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Fr
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Codeshare flight, operated by Delta Air Lines.
(DL 5641)
Duration: 1:57, non-stop Embraer EMB 175 (E75)
Direkte Codeshareflüge:
KLM KL6521
Effective 2026-05-27 through 2026-07-03
Mo
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Di
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Mi
Do
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Fr
Sa
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So
Codeshare flight, operated by Delta Air Lines.
(DL 5641)
Duration: 1:57, non-stop Embraer EMB 175 (E75)
Direkte Codeshareflüge:
KLM KL6521
Effective 2026-07-08 through 2026-10-02
Mo
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Di
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Mi
Do
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Fr
Sa
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So
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Codeshare flight, operated by Delta Air Lines.
(DL 5641)
Duration: 1:57, non-stop Embraer EMB 175 (E75)
Direkte Codeshareflüge:
KLM KL6521
Effective 2026-10-07 through 2026-10-23
Mo
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Di
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Mi
Do
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Fr
Sa
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So
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Codeshare flight, operated by Delta Air Lines.
(DL 5641)
Duration: 1:54, non-stop Embraer EMB 175 (E75)
This flight number is listed as serving the following routes:
- Cleveland (CLE) - Boston Logan (BOS)
- Seattle-Tacoma (SEA) - Medford (MFR)
- Syracuse (SYR) - New York John F. Kennedy (JFK)