United Airlines
Is UA423 delayed?
UA423 is cancelled on Nov 14.
Usually on time: arrived within 15 min of schedule on 27 of the last 30 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
Cancelled
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Chicago
ORD
Scheduled
Nov 14
Arrival
Philadelphia
PHL
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
Cancelled
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Philadelphia
PHL
Scheduled
Nov 14
Arrival
Houston
IAH
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Also sold as AC4568, NZ2737, NZ2745, CM2733, LH8842
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 33 min early
Philadelphia → Houston
- 4 min early
Chicago → Philadelphia
- 296 min late
Philadelphia → Houston
- 10 min early
Chicago → Philadelphia
- 26 min early
Philadelphia → Houston
Is UA423 usually late?
Period: Oct 15, 2026 – Nov 14, 2026
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
- 57 of 147
- Cancelled today
- 132
Philadelphia (PHL) departures
- Left more than 15 min late
- 8 of 47
- Cancelled today
- 38
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 14, 2026Cancelled | Chicago | Philadelphia | Not available | Not available |
| Nov 13, 2026Arrived | Philadelphia | Houston | -33 | |
| Nov 13, 2026Arrived | Chicago | Philadelphia | -4 | |
| Nov 12, 2026Arrived | Philadelphia | Houston | 296 | |
| Nov 12, 2026Arrived | Chicago | Philadelphia | -10 | |
| Nov 11, 2026Arrived | Philadelphia | Houston | -26 | |
| Nov 11, 2026Arrived | Chicago | Philadelphia | -24 | |
| Nov 10, 2026Arrived | Philadelphia | Houston | -29 | |
| Nov 10, 2026Arrived | Chicago | Philadelphia | -13 | |
| Nov 9, 2026Arrived | Philadelphia | Houston | -18 | |
| Nov 9, 2026Arrived | Chicago | Philadelphia | -13 | |
| Nov 8, 2026Arrived | Philadelphia | Houston | 3 | |
| Nov 8, 2026Arrived | Chicago | Philadelphia | -8 | |
| Nov 7, 2026Arrived | Philadelphia | Houston | -16 | |
| Nov 7, 2026Arrived | Chicago | Philadelphia | -2 | |
| Nov 6, 2026Arrived | Philadelphia | Houston | 56 | |
| Nov 6, 2026Arrived | Chicago | Philadelphia | -23 | |
| Nov 5, 2026Arrived | Philadelphia | Houston | -16 | |
| Nov 5, 2026Arrived | Chicago | Philadelphia | 4 | |
| Nov 4, 2026Arrived | Philadelphia | Houston | -14 | |
| Nov 4, 2026Arrived | Chicago | Philadelphia | -3 | |
| Nov 3, 2026Arrived | Philadelphia | Houston | 55 | |
| Nov 2, 2026Arrived | Philadelphia | Houston | -34 | |
| Nov 1, 2026Arrived | Philadelphia | Houston | -33 | |
| Oct 31, 2026Arrived | Philadelphia | Houston | -21 | |
| Oct 30, 2026Arrived | Philadelphia | Houston | -34 | |
| Oct 29, 2026Arrived | Philadelphia | Houston | -29 | |
| Oct 28, 2026Arrived | Philadelphia | Houston | -14 | |
| Oct 27, 2026Arrived | Philadelphia | Houston | -2 | |
| Oct 26, 2026Arrived | Philadelphia | Houston | -32 | |
| Oct 25, 2026Arrived | Philadelphia | Houston | -10 |