United Airlines flight UA 4400: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Mon-Wed,Fri-Sun 07:25 Chicago O'Hare (ORD) 2 10:03 Louisville (SDF)
UA 4400 Non-stop Canadair CRJ 550 (CR5) 1:38 Valid until 2026-01-04
Daily 12:55 Washington Dulles (IAD) 14:08 Philadelphia (PHL) D
UA 4400 Non-stop Canadair CRJ 550 (CR5) 1:13 Effective 2026-04-30 through 2026-05-20
Sat 15:00 Newark Liberty, New York (EWR) C 16:31 Washington Dulles (IAD)
UA 4400 Non-stop Canadair CRJ 550 (CR5) 1:31 Operates only on 2026-03-28
Daily 15:35 Chicago O'Hare (ORD) 2 16:47 Green Bay (GRB)
UA 4400 Non-stop Canadair CRJ 550 (CR5) 1:12 Effective 2026-01-06 through 2026-02-11
Daily 15:35 Chicago O'Hare (ORD) 2 16:43 Green Bay (GRB)
UA 4400 Non-stop Canadair CRJ 550 (CR5) 1:08 Effective 2026-03-29 through 2026-04-29
Daily 15:35 Chicago O'Hare (ORD) 2 16:43 Green Bay (GRB)
UA 4400 Non-stop Canadair CRJ 550 (CR5) 1:08 Effective from 2026-05-21
Daily 15:46 Chicago O'Hare (ORD) 2 16:53 Green Bay (GRB)
UA 4400 Non-stop Canadair CRJ 550 (CR5) 1:07 Effective 2026-02-12 through 2026-03-04
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4400: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4400
07:25
Chicago O'Hare (ORD) 2

10:03
Louisville (SDF)
Valid until 2026-01-04
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Duration: 1:38, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4400
12:55
Washington Dulles (IAD)

14:08
Philadelphia (PHL) D
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:13, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4400
15:00
Newark Liberty, New York (EWR) C

16:31
Washington Dulles (IAD)
Operates only on 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:31, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4400
15:35
Chicago O'Hare (ORD) 2

16:47
Green Bay (GRB)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:12, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4400
15:35
Chicago O'Hare (ORD) 2

16:43
Green Bay (GRB)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:08, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4400
15:35
Chicago O'Hare (ORD) 2

16:43
Green Bay (GRB)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:08, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4400
15:46
Chicago O'Hare (ORD) 2

16:53
Green Bay (GRB)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:07, 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)
  • Chicago O'Hare (ORD) - Louisville (SDF)
  • Newark Liberty, New York (EWR) - Washington Dulles (IAD)
  • Washington Dulles (IAD) - Philadelphia (PHL)
All United Airlines flights
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