Is UA4252 delayed?
Service date: · Scheduled departure date (UTC)
Arrived
17 min early
Official source · Updated
Departure
Pittsburgh
PIT
Actual
Scheduled 14:41
Sep 8
Arrival
Dulles
IAD
Actual
Scheduled 11:28
Sep 8
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
PITIAD
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 12 min early
IAH → LRD
- 18 min early
IAH → LRD
- 28 min early
IAH → LRD
- 27 min early
IAH → LRD
- 35 min late
IAH → LRD
Flight history and details
Aug 19, 2026 — Sep 18, 2026
- Observed arrivals
- 10
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 0
- Observed occurrences
- 22
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 17, 2026Arrived | Houston | Laredo | -12 | |
| Sep 16, 2026Arrived | Houston | Laredo | -18 | |
| Sep 15, 2026Arrived | Houston | Laredo | -28 | |
| Sep 12, 2026Arrived | Houston | Laredo | -27 | |
| Sep 11, 2026Arrived | Houston | Laredo | 35 | |
| Sep 9, 2026Arrived | Houston | Laredo | -22 | |
| Sep 8, 2026Arrived | Pittsburgh | Dulles | -17 | |
| Sep 7, 2026Arrived | Dulles | State College | -9 | |
| Sep 5, 2026Arrived | Dulles | State College | 0 | |
| Sep 4, 2026Arrived | Dulles | State College | 66 |