United Airlines flight UA 4537: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue-Sun 05:00 Saint Louis (STL) 1 06:30 Chicago O'Hare (ORD) 2
UA 4537 Non-stop Canadair CRJ 550 (CR5) 1:30 Effective 2026-03-05 through 2026-03-28
Daily 05:00 Saint Louis (STL) 1 06:20 Chicago O'Hare (ORD) 2
UA 4537 Non-stop Canadair CRJ 550 (CR5) 1:20 Effective 2026-05-21 through 2026-08-17
Mon 08:15 Washington Dulles (IAD) 09:30 Raleigh/Durham (RDU) 2
UA 4537 Non-stop Canadair CRJ 550 (CR5) 1:15 Effective 2026-02-16 through 2026-03-02
Daily 08:30 Washington Dulles (IAD) 10:17 Cincinnati (CVG)
UA 4537 Non-stop Canadair CRJ 550 (CR5) 1:47 Valid until 2026-01-05
Daily 15:10 Ottawa Macdonald-Cartier (YOW) 16:59 Newark Liberty, New York (EWR) C
UA 4537 Non-stop Canadair CRJ 550 (CR5) 1:49 Effective 2026-01-06 through 2026-02-08
Mon 15:10 Ottawa Macdonald-Cartier (YOW) 17:00 Newark Liberty, New York (EWR) C
UA 4537 Non-stop Canadair CRJ 550 (CR5) 1:50 Operates only on 2026-02-09
Tue,Wed 15:10 Ottawa Macdonald-Cartier (YOW) 16:59 Newark Liberty, New York (EWR) C
UA 4537 Non-stop Canadair CRJ 550 (CR5) 1:49 Effective 2026-02-10 through 2026-02-11
Daily 19:00 Burlington (BTV) 20:40 Newark Liberty, New York (EWR) C
UA 4537 Non-stop Canadair CRJ 550 (CR5) 1:40 Effective 2026-03-29 through 2026-04-29
Daily 19:03 Burlington (BTV) 20:43 Newark Liberty, New York (EWR) C
UA 4537 Non-stop Canadair CRJ 550 (CR5) 1:40 Effective 2026-04-30 through 2026-05-20
This flight number is listed as serving the following routes:


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United Airlines flight UA 4537: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4537
05:00
Saint Louis (STL) 1

06:30
Chicago O'Hare (ORD) 2
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 UA4537
05:00
Saint Louis (STL) 1

06:20
Chicago O'Hare (ORD) 2
Effective 2026-05-21 through 2026-08-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:20, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4537
08:15
Washington Dulles (IAD)

09:30
Raleigh/Durham (RDU) 2
Effective 2026-02-16 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4537
08:30
Washington Dulles (IAD)

10:17
Cincinnati (CVG)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:47, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4537
15:10
Ottawa Macdonald-Cartier (YOW)

16:59
Newark Liberty, New York (EWR) C
Effective 2026-01-06 through 2026-02-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:49, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4537
15:10
Ottawa Macdonald-Cartier (YOW)

17:00
Newark Liberty, New York (EWR) C
Operates only on 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:50, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4537
15:10
Ottawa Macdonald-Cartier (YOW)

16:59
Newark Liberty, New York (EWR) C
Effective 2026-02-10 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:49, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4537
19:00
Burlington (BTV)

20:40
Newark Liberty, New York (EWR) C
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:40, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4537
19:03
Burlington (BTV)

20:43
Newark Liberty, New York (EWR) C
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:40, non-stop
Canadair CRJ 550 (CR5)
This flight number is listed as serving the following routes:
  • Burlington (BTV) - Newark Liberty, New York (EWR)
  • Ottawa Macdonald-Cartier (YOW) - Newark Liberty, New York (EWR)
  • Saint Louis (STL) - Chicago O'Hare (ORD)
  • Washington Dulles (IAD) - Cincinnati (CVG)
  • Washington Dulles (IAD) - Raleigh/Durham (RDU)
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