United Airlines
Is UA4424 delayed?
Yes — UA4424 is running 51 min late, now expected in Ottawa at 15:08 on Sep 3.
51 min late
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Dulles
IAD
Actual
Scheduled 12:35
Sep 3
Arrival
Ottawa
YOW
Estimated
Scheduled 14:17
Sep 3
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
- Not available
Is UA4424 usually late?
Observation window: Aug 30, 2026 – Sep 29, 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. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
At the airports today
Dulles (IAD) departures
- Left more than 15 min late
- 18 of 117
- Cancelled today
- 0
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|
Email me if UA4424 runs late
We email you if your next UA4424 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.