United Airlines flight UA 4389: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 09:57 Saint Louis (STL) 1 11:32 Chicago O'Hare (ORD) 2
UA 4389 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-06 through 2026-02-03
Daily 09:57 Saint Louis (STL) 1 11:32 Chicago O'Hare (ORD) 2
UA 4389 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-02-05 through 2026-02-11
Wed 10:10 Saint Louis (STL) 1 11:45 Chicago O'Hare (ORD) 2
UA 4389 Non-stop Canadair CRJ 550 (CR5) 1:35 Operates only on 2026-02-04
Daily 10:35 Lexington (LEX) 11:19 Chicago O'Hare (ORD) 2
UA 4389 Non-stop Canadair CRJ 550 (CR5) 1:44 Effective 2026-02-12 through 2026-03-04
Daily 12:56 Chicago O'Hare (ORD) 2 14:14 Cedar Rapids (CID)
UA 4389 Non-stop Canadair CRJ 550 (CR5) 1:18 Valid until 2026-01-05
Mon-Fri,Sun 13:00 Chicago O'Hare (ORD) 2 14:12 Moline (MLI)
UA 4389 Non-stop Canadair CRJ 550 (CR5) 1:12 Effective 2026-03-05 through 2026-03-27
Daily 13:05 Chicago O'Hare (ORD) 2 14:23 Cedar Rapids (CID)
UA 4389 Non-stop Canadair CRJ 550 (CR5) 1:18 Effective from 2026-03-29
Sat 13:55 Chicago O'Hare (ORD) 2 15:07 Moline (MLI)
UA 4389 Non-stop Canadair CRJ 550 (CR5) 1:12 Effective 2026-03-07 through 2026-03-28
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This flight number is listed as serving the following routes:


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United Airlines flight UA 4389: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4389
09:57
Saint Louis (STL) 1

11:32
Chicago O'Hare (ORD) 2
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4389
09:57
Saint Louis (STL) 1

11:32
Chicago O'Hare (ORD) 2
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4389
10:10
Saint Louis (STL) 1

11:45
Chicago O'Hare (ORD) 2
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4389
10:35
Lexington (LEX)

11:19
Chicago O'Hare (ORD) 2
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:44, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4389
12:56
Chicago O'Hare (ORD) 2

14:14
Cedar Rapids (CID)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:18, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4389
13:00
Chicago O'Hare (ORD) 2

14:12
Moline (MLI)
Effective 2026-03-05 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:12, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4389
13:05
Chicago O'Hare (ORD) 2

14:23
Cedar Rapids (CID)
Effective from 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:18, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4389
13:55
Chicago O'Hare (ORD) 2

15:07
Moline (MLI)
Effective 2026-03-07 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:12, non-stop
Canadair CRJ 550 (CR5)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Cedar Rapids (CID)
  • Chicago O'Hare (ORD) - Moline (MLI)
  • Lexington (LEX) - Chicago O'Hare (ORD)
  • Saint Louis (STL) - Chicago O'Hare (ORD)
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