United Airlines flight UA 4578: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 06:28 Dayton (DAY) 07:12 Chicago O'Hare (ORD) 2
UA 4578 Non-stop Canadair CRJ 550 (CR5) 1:44 Valid until 2026-01-05
Mon-Fri,Sun 09:00 Newark Liberty, New York (EWR) C 11:33 Chattanooga (CHA)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 2:33 Effective 2026-02-20 through 2026-03-04
Mon,Wed-Fri 09:35 Newark Liberty, New York (EWR) C 12:04 Chattanooga (CHA)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 2:29 Effective 2026-03-05 through 2026-03-27
Mon,Wed-Fri,Sun 09:39 Newark Liberty, New York (EWR) C 12:18 Chattanooga (CHA)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 2:39 Effective 2026-01-07 through 2026-01-16
Mon,Wed-Fri,Sun 09:39 Newark Liberty, New York (EWR) C 12:18 Chattanooga (CHA)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 2:39 Effective 2026-01-19 through 2026-02-02
Mon,Wed-Fri,Sun 09:39 Newark Liberty, New York (EWR) C 12:18 Chattanooga (CHA)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 2:39 Effective 2026-02-05 through 2026-02-11
Mon,Wed-Fri,Sun 09:39 Newark Liberty, New York (EWR) C 12:18 Chattanooga (CHA)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 2:39 Effective from 2026-05-21
Wed 09:40 Newark Liberty, New York (EWR) C 12:18 Chattanooga (CHA)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 2:38 Operates only on 2026-02-04
Sun 09:42 Newark Liberty, New York (EWR) C 12:11 Chattanooga (CHA)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 2:29 Effective 2026-03-08 through 2026-03-22
Fri 09:59 Newark Liberty, New York (EWR) C 12:28 Chattanooga (CHA)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 2:29 Operates only on 2026-02-13
Mon,Wed,Thu,Sun 10:00 Newark Liberty, New York (EWR) C 12:29 Chattanooga (CHA)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 2:29 Effective 2026-02-12 through 2026-02-19
Daily 19:22 Portland (PWM) 21:20 Washington Dulles (IAD)
UA 4578 Non-stop Canadair CRJ 550 (CR5) 1:58 Effective 2026-03-29 through 2026-04-29
This flight number is listed as serving the following routes:


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United Airlines flight UA 4578: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4578
06:28
Dayton (DAY)

07:12
Chicago O'Hare (ORD) 2
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 UA4578
09:00
Newark Liberty, New York (EWR) C

11:33
Chattanooga (CHA)
Effective 2026-02-20 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:33, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4578
09:35
Newark Liberty, New York (EWR) C

12:04
Chattanooga (CHA)
Effective 2026-03-05 through 2026-03-27
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:29, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4578
09:39
Newark Liberty, New York (EWR) C

12:18
Chattanooga (CHA)
Effective 2026-01-07 through 2026-01-16
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:39, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4578
09:39
Newark Liberty, New York (EWR) C

12:18
Chattanooga (CHA)
Effective 2026-01-19 through 2026-02-02
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:39, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4578
09:39
Newark Liberty, New York (EWR) C

12:18
Chattanooga (CHA)
Effective 2026-02-05 through 2026-02-11
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:39, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4578
09:39
Newark Liberty, New York (EWR) C

12:18
Chattanooga (CHA)
Effective from 2026-05-21
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:39, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4578
09:40
Newark Liberty, New York (EWR) C

12:18
Chattanooga (CHA)
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:38, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4578
09:42
Newark Liberty, New York (EWR) C

12:11
Chattanooga (CHA)
Effective 2026-03-08 through 2026-03-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:29, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4578
09:59
Newark Liberty, New York (EWR) C

12:28
Chattanooga (CHA)
Operates only on 2026-02-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:29, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4578
10:00
Newark Liberty, New York (EWR) C

12:29
Chattanooga (CHA)
Effective 2026-02-12 through 2026-02-19
Mon
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
Duration: 2:29, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4578
19:22
Portland (PWM)

21:20
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:58, non-stop
Canadair CRJ 550 (CR5)
This flight number is listed as serving the following routes:
  • Dayton (DAY) - Chicago O'Hare (ORD)
  • Newark Liberty, New York (EWR) - Chattanooga (CHA)
  • Portland (PWM) - Washington Dulles (IAD)
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