Is UAL4558 delayed?
Service date: · Scheduled departure date (America/New_York)
Last reported
Cancelled
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Dulles
IAD
Scheduled
Sep 18
Arrival
Buffalo
BUF
Scheduled
Sep 18
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
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IADBUF
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 208 min late
IAD → BUF
- 11 min early
IAD → BUF
- 3 min late
IAD → BUF
- 7 min early
IAD → BUF
- 12 min early
IAD → BUF
Flight history and details
Aug 20, 2026 — Sep 19, 2026
- Observed arrivals
- 12
- Arrivals over 15 minutes late
- 1
- Observed cancellations
- 1
- Observed occurrences
- 14
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, 2026Cancelled | Dulles | Buffalo | Not available | Not available |
| Sep 17, 2026Arrived | Dulles | Buffalo | 208 | |
| Sep 16, 2026Arrived | Dulles | Buffalo | -11 | |
| Sep 15, 2026Arrived | Dulles | Buffalo | 3 | |
| Sep 14, 2026Arrived | Dulles | Buffalo | -7 | |
| Sep 13, 2026Arrived | Dulles | Buffalo | -12 | |
| Sep 11, 2026Arrived | Dulles | Buffalo | -5 | |
| Sep 9, 2026Arrived | Dulles | Buffalo | -6 | |
| Sep 8, 2026Arrived | Dulles | Buffalo | -11 | |
| Sep 7, 2026Arrived | Huntsville | Houston | -35 | |
| Sep 6, 2026Arrived | Huntsville | Houston | -29 | |
| Sep 5, 2026Arrived | Huntsville | Houston | -29 | |
| Sep 4, 2026Arrived | Huntsville | Houston | -10 |