Is UA4335 delayed?
Service date: · Scheduled departure date (America/New_York)
Arrived
20 min early
Updated
Departure
Dulles
IAD
Actual
Scheduled 12:50
Aug 25
Arrival
Buffalo
BUF
Actual
Scheduled 18:18
Aug 25
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
IADBUF
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 21 min early
IAD → BUF
- 19 min early
IAD → BUF
- 13 min early
IAD → BUF
- 22 min early
IAD → BUF
- 20 min early
IAD → BUF
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 15
- Arrivals over 15 minutes late
- 1
- Observed cancellations
- 0
- Observed occurrences
- 27
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 16, 2026Arrived | Dulles | Buffalo | -21 | |
| Sep 15, 2026Arrived | Dulles | Buffalo | -19 | |
| Sep 14, 2026Arrived | Dulles | Buffalo | -13 | |
| Sep 12, 2026Arrived | Dulles | Buffalo | -22 | |
| Sep 11, 2026Arrived | Dulles | Buffalo | -20 | |
| Sep 10, 2026Arrived | Dulles | Buffalo | -11 | |
| Sep 9, 2026Arrived | Dulles | Buffalo | -6 | |
| Sep 8, 2026Arrived | Dulles | Buffalo | -7 | |
| Sep 7, 2026Arrived | Dulles | Buffalo | -22 | |
| Sep 6, 2026Arrived | Dulles | Buffalo | -20 | |
| Sep 5, 2026Arrived | Dulles | Buffalo | -4 | |
| Sep 4, 2026Arrived | Dulles | Buffalo | 18 | |
| Aug 30, 2026Arrived | Dulles | Buffalo | -25 | |
| Aug 25, 2026Arrived | Dulles | Buffalo | -20 | |
| Aug 24, 2026Arrived | Dulles | Buffalo | -25 |