Is UA4459 delayed?
No delay reported — UA4459 is expected in Philadelphia at 14:08 on Sep 29, 12 min early.
Usually on time: arrived within 15 min of schedule on 38 of the last 45 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
12 min early
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Dulles
IAD
Scheduled
Not available
Arrival
Philadelphia
PHL
Estimated
Scheduled 14:20
Sep 29
Times shown in airport local time
Service date: · Scheduled arrival date; departure time unavailable (America/New_York)
Think UA4459 runs late today? Delayed is trading at 21¢ — pays out x4.77.
Will United Airlines UA 4459 from Dulles to Philadelphia arrive on time, be delayed, or be cancelled on Sep 29?Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
- Not available
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
25 min early
Official source · Updated
Departure
Ottawa
YOW
Scheduled
Sep 29
Arrival
Dulles
IAD
Actual
Scheduled 11:39
Sep 29
Times shown in airport local time
Service date: · Scheduled departure date (America/Toronto)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Also sold as AC3620, NH7140, AV2240
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 25 min early
Ottawa → Dulles
- 168 min late
Dulles → Philadelphia
- 23 min late
Ottawa → Dulles
- 59 min late
Dulles → Philadelphia
- 26 min early
Ottawa → Dulles
Is UA4459 usually late?
Observation window: Aug 30, 2026 – Sep 29, 2026
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
At the airports today
Dulles (IAD) departures
- Left more than 15 min late
- 14 of 109
- Cancelled today
- 0
Philadelphia (PHL) departures
- Left more than 15 min late
- 1 of 24
- Cancelled today
- 0
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 29, 2026Arrived | Ottawa | Dulles | -25 | |
| Sep 28, 2026Arrived | Dulles | Philadelphia | 168 | |
| Sep 28, 2026Arrived | Ottawa | Dulles | 23 | |
| Sep 27, 2026Arrived | Dulles | Philadelphia | 59 | |
| Sep 27, 2026Arrived | Ottawa | Dulles | -26 | |
| Sep 26, 2026Arrived | Dulles | Philadelphia | 0 | |
| Sep 26, 2026Arrived | Ottawa | Dulles | -15 | |
| Sep 25, 2026Arrived | Dulles | Philadelphia | -13 | |
| Sep 25, 2026Arrived | Ottawa | Dulles | -19 | |
| Sep 24, 2026Arrived | Dulles | Philadelphia | -8 | |
| Sep 24, 2026Arrived | Ottawa | Dulles | 42 | |
| Sep 23, 2026Arrived | Dulles | Philadelphia | -7 | |
| Sep 23, 2026Arrived | Ottawa | Dulles | -17 | |
| Sep 22, 2026Arrived | Dulles | Philadelphia | -8 | |
| Sep 22, 2026Arrived | Ottawa | Dulles | -8 | |
| Sep 21, 2026Cancelled | Dulles | Philadelphia | Not available | Not available |
| Sep 21, 2026Arrived | Ottawa | Dulles | 17 | |
| Sep 20, 2026Arrived | Dulles | Philadelphia | 20 | |
| Sep 20, 2026Arrived | Ottawa | Dulles | -7 | |
| Sep 19, 2026Arrived | Dulles | Philadelphia | -22 | |
| Sep 19, 2026Arrived | Ottawa | Dulles | -20 | |
| Sep 18, 2026Arrived | Dulles | Philadelphia | -15 | |
| Sep 18, 2026Arrived | Ottawa | Dulles | -15 | |
| Sep 17, 2026Arrived | Dulles | Philadelphia | 100 | |
| Sep 17, 2026Arrived | Ottawa | Dulles | -18 | |
| Sep 16, 2026Arrived | Dulles | Philadelphia | -25 | |
| Sep 16, 2026Arrived | Ottawa | Dulles | -22 | |
| Sep 15, 2026Arrived | Dulles | Philadelphia | -25 | |
| Sep 15, 2026Arrived | Ottawa | Dulles | -6 | |
| Sep 14, 2026Arrived | Dulles | Philadelphia | -19 | |
| Sep 14, 2026Arrived | Ottawa | Dulles | -7 | |
| Sep 13, 2026Arrived | Dulles | Philadelphia | -18 | |
| Sep 13, 2026Arrived | Ottawa | Dulles | -20 | |
| Sep 12, 2026Arrived | Ottawa | Dulles | -24 | |
| Sep 11, 2026Arrived | Dulles | Philadelphia | -13 | |
| Sep 11, 2026Arrived | Ottawa | Dulles | -27 | |
| Sep 10, 2026Arrived | Dulles | Philadelphia | -29 | |
| Sep 10, 2026Arrived | Ottawa | Dulles | -24 | |
| Sep 9, 2026Arrived | Dulles | Philadelphia | -19 | |
| Sep 9, 2026Arrived | Ottawa | Dulles | -30 | |
| Sep 8, 2026Arrived | Dulles | Philadelphia | -26 | |
| Sep 8, 2026Arrived | Ottawa | Dulles | -30 | |
| Sep 7, 2026Arrived | Ottawa | Dulles | -25 | |
| Sep 6, 2026Arrived | Ottawa | Dulles | -14 | |
| Sep 5, 2026Arrived | Ottawa | Dulles | -20 | |
| Sep 4, 2026Arrived | Ottawa | Dulles | 4 |
Email me if UA4459 runs late
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