United Airlines flight UA 4557: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Mon-Fri 08:30 Washington Dulles (IAD) 09:52 Norfolk (ORF)
UA 4557 Non-stop Canadair CRJ 550 (CR5) 1:22 Effective 2026-01-06 through 2026-02-03
Mon-Fri 08:30 Washington Dulles (IAD) 09:52 Norfolk (ORF)
UA 4557 Non-stop Canadair CRJ 550 (CR5) 1:22 Effective 2026-02-05 through 2026-02-11
Sun 10:37 Chicago O'Hare (ORD) 2 13:47 Richmond (RIC)
UA 4557 Non-stop Canadair CRJ 550 (CR5) 2:10 Effective 2026-03-08 through 2026-03-22
Daily 12:45 Chicago O'Hare (ORD) 2 13:54 Madison (MSN)
UA 4557 Non-stop Canadair CRJ 550 (CR5) 1:09 Valid until 2026-01-05
Daily 12:45 Chicago O'Hare (ORD) 2 13:48 Madison (MSN)
UA 4557 Non-stop Canadair CRJ 550 (CR5) 1:03 Effective from 2026-05-21
Daily 12:47 Chicago O'Hare (ORD) 2 13:50 Madison (MSN)
UA 4557 Non-stop Canadair CRJ 550 (CR5) 1:03 Effective 2026-04-30 through 2026-05-20
Sat,Sun 14:40 Detroit (DTW) E 16:16 Washington Dulles (IAD)
UA 4557 Non-stop Canadair CRJ 550 (CR5) 1:36 Effective 2026-01-10 through 2026-02-08
Daily 17:15 Washington Dulles (IAD) 18:58 Cincinnati (CVG)
UA 4557 Non-stop Canadair CRJ 550 (CR5) 1:43 Effective 2026-02-12 through 2026-03-04
Mon-Sat 19:43 Rochester (ROC) 21:13 Washington Dulles (IAD)
UA 4557 Non-stop Canadair CRJ 550 (CR5) 1:30 Effective 2026-03-05 through 2026-03-28
Daily 20:20 Houston George Bush (IAH) 21:53 Little Rock (LIT)
UA 4557 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-03-29 through 2026-04-29
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4557: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4557
08:30
Washington Dulles (IAD)

09:52
Norfolk (ORF)
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:22, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4557
08:30
Washington Dulles (IAD)

09:52
Norfolk (ORF)
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:22, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4557
10:37
Chicago O'Hare (ORD) 2

13:47
Richmond (RIC)
Effective 2026-03-08 through 2026-03-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4557
12:45
Chicago O'Hare (ORD) 2

13:54
Madison (MSN)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:09, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4557
12:45
Chicago O'Hare (ORD) 2

13:48
Madison (MSN)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:03, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4557
12:47
Chicago O'Hare (ORD) 2

13:50
Madison (MSN)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:03, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4557
14:40
Detroit (DTW) E

16:16
Washington Dulles (IAD)
Effective 2026-01-10 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 1:36, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4557
17:15
Washington Dulles (IAD)

18:58
Cincinnati (CVG)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:43, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4557
19:43
Rochester (ROC)

21:13
Washington Dulles (IAD)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4557
20:20
Houston George Bush (IAH)

21:53
Little Rock (LIT)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Madison (MSN)
  • Chicago O'Hare (ORD) - Richmond (RIC)
  • Detroit (DTW) - Washington Dulles (IAD)
  • Houston George Bush (IAH) - Little Rock (LIT)
  • Rochester (ROC) - Washington Dulles (IAD)
  • Washington Dulles (IAD) - Cincinnati (CVG)
  • Washington Dulles (IAD) - Norfolk (ORF)
All United Airlines flights
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