United Airlines UA4423 Flight Status Today
United Airlines
Live Data: Real-time flight information updated at 2026-01-20
Last API update: Status Last Updated More Than 3 Hours Ago
Departure
STL
St. Louis Lambert International Airport St. Louis
06:30
Terminal: 1
Gate: A21
97 min
Canadair (Bombardier) Regional Jet 700 and Challenger 870
Arrival
ORD
Chicago O'Hare International Airport Chicago
08:05
Terminal: 2
Gate: F4
UA4423 Flight Information
- Flight Number: UA4423
- Aircraft: Canadair (Bombardier) Regional Jet 700 and Challenger 870
- Frequency: MON-TUE-WED-THU-FRI-SAT-SUN
- Status: Arrived Delayed by 1h 17m
Flight History (Last 30 Flights)
Historical flight data showing past 30 operations
| Date | Route | Status | Schedule | Estimates/Actual | Duration | Aircraft |
|---|---|---|---|---|---|---|
| 2026-01-16 |
STL
ORD
|
Arrived On time |
06:30
08:05
|
06:22
07:49
|
87min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2026-01-10 |
STL
ORD
|
Scheduled On time |
06:30
08:05
|
06:30
08:05
|
95min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2026-01-02 |
STL
ORD
|
Arrived On time |
06:30
08:05
|
06:27
07:52
|
85min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-12-26 |
STL
ORD
|
Arrived Delayed by 2h 10m |
06:30
08:05
|
08:25
10:15
|
110min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-12-14 |
STL
ORD
|
Scheduled On time |
06:30
07:59
|
06:30
07:59
|
89min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-12-06 |
STL
ORD
|
Arrived On time |
06:30
07:59
|
06:23
08:11
|
108min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-11-24 |
STL
ORD
|
Arrived On time |
06:30
07:59
|
06:22
07:45
|
83min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-11-21 |
STL
ORD
|
Arrived Delayed by 1h 42m |
06:30
07:59
|
08:01
09:41
|
100min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-11-16 |
STL
ORD
|
Scheduled On time |
06:30
07:59
|
06:30
07:59
|
89min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-11-14 |
STL
ORD
|
Arrived On time |
06:30
07:59
|
06:22
07:41
|
79min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-10-20 |
STL
ORD
|
Scheduled On time |
06:30
08:00
|
06:30
08:00
|
90min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-10-18 |
STL
ORD
|
Arrived On time |
06:30
08:00
|
06:34
07:46
|
72min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-09-30 |
STL
ORD
|
Arrived On time |
06:30
08:00
|
06:22
07:38
|
76min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-09-19 |
STL
ORD
|
Arrived On time |
06:35
08:05
|
06:25
07:46
|
81min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-09-11 |
STL
ORD
|
Arrived On time |
06:35
08:05
|
06:28
08:03
|
95min | Canadair (Bombardier) Regional Jet 700 and Challenger 870 |
| 2025-08-28 |
STL
ORD
|
Scheduled |
2025-08-28 06:35
2025-08-28 08:05
|
-
|
90min | - |
| 2025-08-27 |
STL
ORD
|
Scheduled |
2025-08-27 06:35
2025-08-27 08:05
|
-
|
90min | - |
| 2025-08-26 |
STL
ORD
|
Scheduled |
2025-08-26 06:35
2025-08-26 08:05
|
-
|
90min | - |
| 2025-08-25 |
STL
ORD
|
Scheduled |
2025-08-25 06:35
2025-08-25 08:05
|
-
|
90min | - |
| 2025-08-24 |
STL
ORD
|
Scheduled |
2025-08-24 06:35
2025-08-24 08:05
|
-
|
90min | - |
| 2025-08-23 |
STL
ORD
|
Scheduled |
2025-08-23 06:35
2025-08-23 08:05
|
-
|
90min | - |
| 2025-08-22 |
STL
ORD
|
Departure Estimated dep 06:35 |
2025-08-22 06:35
2025-08-22 08:05
|
2025-08-22 06:35
|
90min | Mitsubishi CRJ-550 |
| 2025-08-21 |
STL
ORD
|
Departure Estimated dep 06:55 |
2025-08-21 06:35
2025-08-21 08:05
|
2025-08-21 06:55
|
90min | Mitsubishi CRJ-550 |
| 2025-08-20 |
STL
ORD
|
Arrived Early |
2025-08-20 06:35
2025-08-20 08:05
|
2025-08-20 06:43
2025-08-20 07:31
|
48min | Mitsubishi CRJ-550 |
| 2025-08-19 |
STL
ORD
|
Arrived On time |
2025-08-19 06:35
2025-08-19 08:05
|
2025-08-19 07:12
2025-08-19 08:10
|
58min | Mitsubishi CRJ-550 |
| 2025-08-18 |
STL
ORD
|
Arrived Delayed by 26 minutes |
2025-08-18 06:33
2025-08-18 08:05
|
2025-08-18 07:41
2025-08-18 08:31
|
50min | Mitsubishi CRJ-550 |
| 2025-08-17 |
STL
ORD
|
Arrived On time |
2025-08-17 06:33
2025-08-17 08:05
|
2025-08-17 07:15
2025-08-17 08:01
|
46min | Mitsubishi CRJ-550 |
| 2025-08-16 |
STL
ORD
|
Arrived Early |
2025-08-16 06:33
2025-08-16 08:05
|
2025-08-16 06:44
2025-08-16 07:34
|
51min | Mitsubishi CRJ-550 |
| 2025-08-15 |
STL
ORD
|
Arrived Early |
2025-08-15 06:33
2025-08-15 08:05
|
2025-08-15 06:43
2025-08-15 07:37
|
55min | Mitsubishi CRJ-550 |
| 2025-08-14 |
STL
ORD
|
Arrived Early |
2025-08-14 06:33
2025-08-14 08:05
|
2025-08-14 07:03
2025-08-14 07:47
|
44min | Mitsubishi CRJ-550 |
UA4423 Live Status Details
API Status:
Arrived Delayed by 1h 17m
Actual Departure:
07:45
Actual Arrival:
09:22
Baggage Claim:
2
Live Updates
This flight is monitored in real-time. Status updates every 5 minutes.