Is UA4527 delayed?
Yes — UA4527 landed in Dulles 108 min late, at 18:18 on Sep 29 (as of Sep 29, 22:18 UTC).
Usually on time: arrived within 15 min of schedule on 25 of the last 32 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
108 min late
Official source · Updated
Departure
Burlington
BTV
Actual
Scheduled 14:51
Sep 29
Arrival
Dulles
IAD
Actual
Scheduled 16:30
Sep 29
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Market settled: Delayed.
Think UA4527 runs late on Sep 30? Delayed is trading at 23¢ — pays out x4.37.
Will United Airlines UAL 4527 from Burlington to Dulles arrive on time, be delayed, or be cancelled on Sep 30?Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
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.
37 min early
Official source · Updated
Departure
Dulles
IAD
Scheduled
Sep 29
Arrival
St Louis
STL
Actual
Scheduled 19:21
Sep 29
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
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.
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 37 min early
Dulles → St Louis
- 108 min late
Burlington → Dulles
- 189 min late
Dulles → St Louis
- 26 min late
Burlington → Dulles
- 2 min early
Dulles → St Louis
Is UA4527 usually late?
Observation window: Aug 31, 2026 – Sep 30, 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
- 28 of 194
- Cancelled today
- 0
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 29, 2026Arrived | Dulles | St Louis | -37 | |
| Sep 29, 2026Arrived | Burlington | Dulles | 108 | |
| Sep 28, 2026Arrived | Dulles | St Louis | 189 | |
| Sep 28, 2026Arrived | Burlington | Dulles | 26 | |
| Sep 27, 2026Arrived | Dulles | St Louis | -2 | |
| Sep 27, 2026Arrived | Burlington | Dulles | -16 | |
| Sep 26, 2026Arrived | Dulles | St Louis | -20 | |
| Sep 25, 2026Arrived | Dulles | St Louis | -2 | |
| Sep 25, 2026Arrived | Burlington | Dulles | 212 | |
| Sep 24, 2026Arrived | Dulles | St Louis | -30 | |
| Sep 24, 2026Arrived | Burlington | Dulles | -13 | |
| Sep 23, 2026Arrived | Chicago | Columbus | -2 | |
| Sep 22, 2026Arrived | Dulles | St Louis | -2 | |
| Sep 21, 2026Arrived | Dulles | St Louis | 58 | |
| Sep 20, 2026Arrived | Dulles | St Louis | -33 | |
| Sep 19, 2026Arrived | Dulles | St Louis | 11 | |
| Sep 18, 2026Arrived | Dulles | St Louis | -28 | |
| Sep 17, 2026Arrived | Dulles | St Louis | 311 | |
| Sep 16, 2026Arrived | Dulles | St Louis | -15 | |
| Sep 15, 2026Arrived | Dulles | St Louis | -25 | |
| Sep 14, 2026Arrived | Dulles | St Louis | -26 | |
| Sep 13, 2026Arrived | Dulles | St Louis | -28 | |
| Sep 12, 2026Arrived | Dulles | St Louis | 106 | |
| Sep 11, 2026Arrived | Dulles | St Louis | -27 | |
| Sep 10, 2026Arrived | Dulles | St Louis | -11 | |
| Sep 9, 2026Arrived | Dulles | St Louis | -28 | |
| Sep 8, 2026Arrived | Dulles | St Louis | -41 | |
| Sep 7, 2026Arrived | Dulles | St Louis | -29 | |
| Sep 6, 2026Arrived | Dulles | St Louis | -30 | |
| Sep 5, 2026Arrived | Dulles | St Louis | 4 | |
| Sep 3, 2026Arrived | Dulles | St Louis | -29 | |
| Sep 1, 2026Arrived | Dulles | St Louis | -37 |
Email me if UA4527 runs late
We email you if your next UA4527 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.