United Airlines
Is UA4423 delayed?
UA4423 is cancelled on Nov 14. Of its last 9 arrivals, 2 landed more than 15 min late.
Cancelled
This update may be out of date. Check with your airline.
Update time unavailable
Departure
St Louis
STL
Scheduled
Nov 14
Arrival
Chicago
ORD
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/Chicago)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Also sold as AC4913, NH7591, NZ2894
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- On schedule (3 min behind)
St Louis → Chicago
- 25 min early
St Louis → Chicago
- 5 min early
St Louis → Chicago
- 13 min early
St Louis → Chicago
- On schedule (2 min behind)
St Louis → Chicago
Is UA4423 usually late?
Period: Oct 15, 2026 – Nov 14, 2026
Percentages and delay figures appear once 10 arrivals are recorded.
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.
At the airports today
Chicago (ORD) departures
- Left more than 15 min late
- 66 of 160
- Cancelled today
- 134
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 14, 2026Cancelled | St Louis | Chicago | Not available | Not available |
| Nov 12, 2026Arrived | St Louis | Chicago | 3 | |
| Nov 11, 2026Arrived | St Louis | Chicago | -25 | |
| Nov 9, 2026Arrived | St Louis | Chicago | -5 | |
| Nov 8, 2026Arrived | St Louis | Chicago | -13 | |
| Nov 7, 2026Arrived | St Louis | Chicago | 2 | |
| Nov 6, 2026Arrived | St Louis | Chicago | 59 | |
| Nov 5, 2026Arrived | St Louis | Chicago | 12 | |
| Nov 4, 2026Arrived | St Louis | Chicago | 145 | |
| Oct 20, 2026Arrived | Chicago | Madison | -10 |