Is UA4584 delayed?
Service date: · Scheduled departure date (America/New_York)
Arrived
14 min early
Official source · Updated
Departure
Philadelphia
PHL
Scheduled
Sep 10
Arrival
Dulles
IAD
Actual
Scheduled 16:15
Sep 10
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
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.
- 73 min late
PHL → IAD
- 35 min early
PHL → IAD
- 33 min early
PHL → IAD
- 25 min early
PHL → IAD
- 22 min early
PHL → IAD
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 15
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 1
- Observed occurrences
- 20
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 | Philadelphia | Dulles | 73 | |
| Sep 16, 2026Arrived | Philadelphia | Dulles | -35 | |
| Sep 15, 2026Arrived | Philadelphia | Dulles | -33 | |
| Sep 14, 2026Arrived | Philadelphia | Dulles | -25 | |
| Sep 12, 2026Arrived | Philadelphia | Dulles | -22 | |
| Sep 10, 2026Arrived | Philadelphia | Dulles | -14 | |
| Sep 9, 2026Arrived | Philadelphia | Dulles | -36 | |
| Sep 8, 2026Arrived | Philadelphia | Dulles | -34 | |
| Sep 3, 2026Arrived | Dulles | Philadelphia | -2 | |
| Sep 2, 2026Arrived | Dulles | Philadelphia | 83 | |
| Sep 1, 2026Arrived | Dulles | Philadelphia | 14 | |
| Aug 31, 2026Arrived | Dulles | Philadelphia | -9 | |
| Aug 28, 2026Arrived | Dulles | Philadelphia | -13 | |
| Aug 27, 2026Cancelled | Dulles | Philadelphia | Not available | Not available |
| Aug 26, 2026Arrived | Dulles | Philadelphia | -7 | |
| Aug 25, 2026Arrived | Dulles | Philadelphia | -14 |