United Airlines flight UA 4545: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 10:10 Columbia (CAE) 11:40 Chicago O'Hare (ORD) 2
UA 4545 Non-stop Canadair CRJ 550 (CR5) 2:30 Effective 2025-06-26 through 2025-08-18
Daily 10:15 Columbia (CAE) 11:45 Chicago O'Hare (ORD) 2
UA 4545 Non-stop Canadair CRJ 550 (CR5) 2:30 Effective 2025-05-22 through 2025-06-25
Daily 13:00 Oklahoma City (OKC) 15:17 Chicago O'Hare (ORD) 2
UA 4545 Non-stop Canadair CRJ 550 (CR5) 2:17 Effective 2025-09-25 through 2025-10-25
Daily 15:35 Chicago O'Hare (ORD) 2 16:49 Green Bay (GRB)
UA 4545 Non-stop Canadair CRJ 550 (CR5) 1:14 Effective 2025-08-19 through 2025-09-24
Daily 15:35 Chicago O'Hare (ORD) 2 16:43 Green Bay (GRB)
UA 4545 Non-stop Canadair CRJ 550 (CR5) 1:08 Effective from 2025-10-26
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4545: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4545
10:10
Columbia (CAE)

11:40
Chicago O'Hare (ORD) 2
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:30, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4545
10:15
Columbia (CAE)

11:45
Chicago O'Hare (ORD) 2
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:30, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4545
13:00
Oklahoma City (OKC)

15:17
Chicago O'Hare (ORD) 2
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:17, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4545
15:35
Chicago O'Hare (ORD) 2

16:49
Green Bay (GRB)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:14, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4545
15:35
Chicago O'Hare (ORD) 2

16:43
Green Bay (GRB)
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:08, non-stop
Canadair CRJ 550 (CR5)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Green Bay (GRB)
  • Columbia (CAE) - Chicago O'Hare (ORD)
  • Oklahoma City (OKC) - Chicago O'Hare (ORD)
All United Airlines flights
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