United Airlines flight UA 4504: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 07:15 Chicago O'Hare (ORD) 2 10:00 Chattanooga (CHA)
UA 4504 Non-stop Canadair CRJ 550 (CR5) 1:45 Effective 2026-04-30 through 2026-05-20
Daily 07:21 Chicago O'Hare (ORD) 2 10:06 Chattanooga (CHA)
UA 4504 Non-stop Canadair CRJ 550 (CR5) 1:45 Effective 2026-03-29 through 2026-04-29
Daily 08:50 Chicago O'Hare (ORD) 2 11:35 Chattanooga (CHA)
UA 4504 Non-stop Canadair CRJ 550 (CR5) 1:45 Effective from 2026-05-21
Daily 09:25 Chicago O'Hare (ORD) 2 12:16 Chattanooga (CHA)
UA 4504 Non-stop Canadair CRJ 550 (CR5) 1:51 Effective 2026-02-12 through 2026-03-04
Mon-Fri,Sun 12:35 Washington Dulles (IAD) 14:19 Cincinnati (CVG)
UA 4504 Non-stop Canadair CRJ 550 (CR5) 1:44 Valid until 2026-01-05
Sat 13:00 Chicago O'Hare (ORD) 2 15:26 Cincinnati (CVG)
UA 4504 Non-stop Canadair CRJ 550 (CR5) 1:26 Effective 2026-03-07 through 2026-03-28
Sat 18:00 Newark Liberty, New York (EWR) C 19:42 Bangor (BGR)
UA 4504 Non-stop Canadair CRJ 550 (CR5) 1:42 Operates only on 2026-01-03
Tue-Thu,Sat,Sun 22:05 Washington Dulles (IAD) 23:44 Columbia (CAE)
UA 4504 Non-stop Canadair CRJ 550 (CR5) 1:39 Effective 2026-01-06 through 2026-02-11
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4504: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4504
07:15
Chicago O'Hare (ORD) 2

10:00
Chattanooga (CHA)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:45, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4504
07:21
Chicago O'Hare (ORD) 2

10:06
Chattanooga (CHA)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:45, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4504
08:50
Chicago O'Hare (ORD) 2

11:35
Chattanooga (CHA)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:45, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4504
09:25
Chicago O'Hare (ORD) 2

12:16
Chattanooga (CHA)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:51, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4504
12:35
Washington Dulles (IAD)

14:19
Cincinnati (CVG)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:44, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4504
13:00
Chicago O'Hare (ORD) 2

15:26
Cincinnati (CVG)
Effective 2026-03-07 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:26, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4504
18:00
Newark Liberty, New York (EWR) C

19:42
Bangor (BGR)
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:42, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4504
22:05
Washington Dulles (IAD)

23:44
Columbia (CAE)
Effective 2026-01-06 through 2026-02-11
Mon
-
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 1:39, non-stop
Canadair CRJ 550 (CR5)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Chattanooga (CHA)
  • Chicago O'Hare (ORD) - Cincinnati (CVG)
  • Newark Liberty, New York (EWR) - Bangor (BGR)
  • Washington Dulles (IAD) - Cincinnati (CVG)
  • Washington Dulles (IAD) - Columbia (CAE)
All United Airlines flights
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