United Airlines
vol
UA 4521:
Multiple routes
HORAIRES DES VOLS
Vols directs:
United Airlines UA4521
Effective 2026-03-08 through 2026-03-22
Lun
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Mar
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Mer
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Jeu
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Ven
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Sam
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Dim
Duration: 2:04, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
Vols directs:
United Airlines UA4521
Effective 2026-03-05 through 2026-03-27
Lun
Mar
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Mer
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Jeu
Ven
Sam
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Dim
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Duration: 2:04, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
Vols directs:
United Airlines UA4521
Effective 2026-02-12 through 2026-03-04
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:59, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
Vols directs:
United Airlines UA4521
Effective 2026-03-29 through 2026-05-20
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:40, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
Vols directs:
United Airlines UA4521
Valid until 2026-01-05
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:53, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
Vols directs:
United Airlines UA4521
Effective 2026-01-06 through 2026-02-10
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:57, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
Vols directs:
United Airlines UA4521
Effective from 2026-05-21
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:48, non-stop
Canadair CRJ 550 (CR5)
Canadair CRJ 550 (CR5)
This flight number is listed as serving the following routes:
- Chicago O'Hare (ORD) - Asheville/Hendersonville (AVL)
- Chicago O'Hare (ORD) - Knoxville (TYS)
- Cincinnati (CVG) - Newark Liberty, New York (EWR)
- Washington Dulles (IAD) - Cincinnati (CVG)