United Airlines flight UA 4423: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 06:30 Saint Louis (STL) 1 08:00 Chicago O'Hare (ORD) 2
UA 4423 Non-stop Canadair CRJ 550 (CR5) 1:30 Valid until 2025-05-21
Daily 06:30 Saint Louis (STL) 1 08:02 Chicago O'Hare (ORD) 2
UA 4423 Non-stop Canadair CRJ 550 (CR5) 1:32 Effective 2025-05-23 through 2025-06-25
Daily 06:33 Saint Louis (STL) 1 08:05 Chicago O'Hare (ORD) 2
UA 4423 Non-stop Canadair CRJ 550 (CR5) 1:32 Effective 2025-06-27 through 2025-08-18
Daily 06:35 Saint Louis (STL) 1 08:05 Chicago O'Hare (ORD) 2
UA 4423 Non-stop Canadair CRJ 550 (CR5) 1:30 Effective 2025-08-19 through 2025-10-25
Daily 06:45 Saint Louis (STL) 1 08:05 Chicago O'Hare (ORD) 2
UA 4423 Non-stop Canadair CRJ 550 (CR5) 1:20 Effective from 2025-10-26
Thu 08:10 Madison (MSN) 09:20 Chicago O'Hare (ORD) 2
UA 4423 Non-stop Canadair CRJ 550 (CR5) 1:10 Operates only on 2025-06-26
This flight number is listed as serving the following routes:


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United Airlines flight UA 4423: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4423
06:30
Saint Louis (STL) 1

08:00
Chicago O'Hare (ORD) 2
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4423
06:30
Saint Louis (STL) 1

08:02
Chicago O'Hare (ORD) 2
Effective 2025-05-23 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:32, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4423
06:33
Saint Louis (STL) 1

08:05
Chicago O'Hare (ORD) 2
Effective 2025-06-27 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:32, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4423
06:35
Saint Louis (STL) 1

08:05
Chicago O'Hare (ORD) 2
Effective 2025-08-19 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4423
06:45
Saint Louis (STL) 1

08:05
Chicago O'Hare (ORD) 2
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:20, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4423
08:10
Madison (MSN)

09:20
Chicago O'Hare (ORD) 2
Operates only on 2025-06-26
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Canadair CRJ 550 (CR5)
This flight number is listed as serving the following routes:
  • Madison (MSN) - Chicago O'Hare (ORD)
  • Saint Louis (STL) - Chicago O'Hare (ORD)
All United Airlines flights
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