United Airlines flight UA 4421: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Tue 06:25 Richmond (RIC) 07:58 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 2:33 Operates only on 2026-01-06
Daily 07:45 Newark Liberty, New York (EWR) C 09:15 Burlington (BTV)
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:30 Valid until 2026-01-05
Daily 07:45 Springfield (SGF) 09:47 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 2:02 Effective 2026-01-07 through 2026-02-03
Daily 07:45 Springfield (SGF) 09:47 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 2:02 Effective 2026-02-05 through 2026-02-11
Daily 07:45 Springfield (SGF) 09:40 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:55 Effective 2026-03-05 through 2026-03-28
Daily 07:45 Springfield (SGF) 09:32 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:47 Effective 2026-03-29 through 2026-04-29
Wed 07:50 Springfield (SGF) 09:52 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 2:02 Operates only on 2026-02-04
Daily 07:55 Springfield (SGF) 09:50 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:55 Effective 2026-02-12 through 2026-03-04
Daily 08:00 Springfield (SGF) 09:50 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:50 Effective 2026-04-30 through 2026-05-20
Daily 08:00 Springfield (SGF) 09:44 Chicago O'Hare (ORD) 2
UA 4421 Non-stop Canadair CRJ 550 (CR5) 1:44 Effective from 2026-05-21
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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
06:25
Richmond (RIC)

07:58
Chicago O'Hare (ORD) 2
Operates only on 2026-01-06
Mon
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Tue
Wed
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Thu
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Fri
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Sat
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Sun
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Duration: 2:33, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4421
07:45
Newark Liberty, New York (EWR) C

09:15
Burlington (BTV)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4421
07:45
Springfield (SGF)

09:47
Chicago O'Hare (ORD) 2
Effective 2026-01-07 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:02, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4421
07:45
Springfield (SGF)

09:47
Chicago O'Hare (ORD) 2
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:02, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4421
07:45
Springfield (SGF)

09:40
Chicago O'Hare (ORD) 2
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:55, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4421
07:45
Springfield (SGF)

09:32
Chicago O'Hare (ORD) 2
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:47, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4421
07:50
Springfield (SGF)

09:52
Chicago O'Hare (ORD) 2
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
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Fri
-
Sat
-
Sun
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Duration: 2:02, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4421
07:55
Springfield (SGF)

09:50
Chicago O'Hare (ORD) 2
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:55, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4421
08:00
Springfield (SGF)

09:50
Chicago O'Hare (ORD) 2
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:50, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4421
08:00
Springfield (SGF)

09:44
Chicago O'Hare (ORD) 2
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:44, non-stop
Canadair CRJ 550 (CR5)
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This flight number is listed as serving the following routes:
  • Newark Liberty, New York (EWR) - Burlington (BTV)
  • Richmond (RIC) - Chicago O'Hare (ORD)
  • Springfield (SGF) - Chicago O'Hare (ORD)
All United Airlines flights
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