Is UA4451 delayed?
Service date: · Scheduled departure date (America/New_York)
Arrived
17 min early
Official source · Updated
Departure
Dulles
IAD
Actual
Scheduled 08:51
Sep 14
Arrival
Burlington
BTV
Actual
Scheduled 14:03
Sep 14
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
IADBTV
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 12 min early
IAD → BTV
- 29 min early
IAD → BTV
- 17 min early
IAD → BTV
- 7 min late
IAD → BTV
- 8 min late
IAD → BTV
Flight history and details
Aug 19, 2026 — Sep 18, 2026
- Observed arrivals
- 13
- Arrivals over 15 minutes late
- 1
- Observed cancellations
- 0
- Observed occurrences
- 26
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 18, 2026Arrived | Dulles | Burlington | -12 | |
| Sep 16, 2026Arrived | Dulles | Burlington | -29 | |
| Sep 14, 2026Arrived | Dulles | Burlington | -17 | |
| Sep 13, 2026Arrived | Dulles | Burlington | 7 | |
| Sep 12, 2026Arrived | Dulles | Burlington | 8 | |
| Sep 11, 2026Arrived | Dulles | Burlington | 8 | |
| Sep 10, 2026Arrived | Dulles | Burlington | -18 | |
| Sep 9, 2026Arrived | Dulles | Burlington | -17 | |
| Sep 8, 2026Arrived | Dulles | Burlington | -13 | |
| Sep 7, 2026Arrived | Dulles | Burlington | -13 | |
| Sep 6, 2026Arrived | Dulles | Burlington | -11 | |
| Sep 5, 2026Arrived | Dulles | Burlington | 30 | |
| Sep 4, 2026Arrived | Dulles | Burlington | -5 |