United Airlines flight UA 4421: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 07:55 Springfield (SGF) 09:52 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:57 Effective 2025-09-25 through 2025-10-25
Daily 08:00 Springfield (SGF) 09:50 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:50 Valid until 2025-05-21
Daily 08:00 Springfield (SGF) 09:53 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:53 Effective 2025-05-22 through 2025-08-18
Daily 08:00 Springfield (SGF) 09:44 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:44 Effective from 2025-10-26
Daily 12:42 Dulles, Washington (IAD) 14:08 Syracuse (SYR)
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:26 Effective 2025-08-19 through 2025-09-24
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4421: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4421
07:55
Springfield (SGF)

09:52
Chicago O'Hare (ORD) 2
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:57, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4421
08:00
Springfield (SGF)

09:50
Chicago O'Hare (ORD) 2
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:50, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4421
08:00
Springfield (SGF)

09:53
Chicago O'Hare (ORD) 2
Effective 2025-05-22 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:53, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4421
08:00
Springfield (SGF)

09:44
Chicago O'Hare (ORD) 2
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:44, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4421
12:42
Dulles, Washington (IAD)

14:08
Syracuse (SYR)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:26, non-stop
Canadair CRJ 550 (CR5)
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This flight number is listed as serving the following routes:
  • Dulles, Washington (IAD) - Syracuse (SYR)
  • Springfield (SGF) - Chicago O'Hare (ORD)
All United Airlines flights
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