United Airlines
Is UA3866 delayed?
Yes — UA3866 landed in Dulles 77 min late, at 19:11 on Sep 14 (as of Sep 14, 23:11 UTC).
77 min late
Official source · Updated
Departure
Dulles
IAD
Actual
Scheduled 16:52
Sep 14
Arrival
Dulles
IAD
Actual
Scheduled 17:54
Sep 14
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 77 min late
Dulles → Dulles
- 5 min early
Houston → Houston
Is UA3866 usually late?
Observation window: Aug 31, 2026 – Sep 30, 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
- 27 of 178
- Cancelled today
- 0
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 14, 2026Arrived | Dulles | Dulles | 77 | |
| Sep 8, 2026Arrived | Houston | Houston | -5 |
Email me if UA3866 runs late
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