United Airlines
Is UA3980 delayed?
Service date: · Scheduled departure date (America/New_York)
Arrived
11 min early
Updated
Departure
Dulles
IAD
Actual
Scheduled 12:50
Aug 24
Arrival
Louisville
SDF
Actual
Scheduled 18:37
Aug 24
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
IADSDF
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 8 min early
IAD → SDF
- 45 min late
IAD → SDF
- 23 min late
IAD → SDF
- 1 min late
IAD → SDF
- 1 min early
IAD → SDF
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 13
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 11
- Observed occurrences
- 24
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 14, 2026Arrived | Dulles | Louisville | -8 | |
| Sep 13, 2026Arrived | Dulles | Louisville | 45 | |
| Sep 12, 2026Arrived | Dulles | Louisville | 23 | |
| Sep 11, 2026Arrived | Dulles | Louisville | 1 | |
| Sep 10, 2026Arrived | Dulles | Louisville | -1 | |
| Sep 9, 2026Arrived | Dulles | Louisville | -7 | |
| Sep 8, 2026Arrived | Dulles | Louisville | -5 | |
| Sep 7, 2026Arrived | Dulles | Louisville | -6 | |
| Sep 6, 2026Arrived | Dulles | Louisville | -10 | |
| Sep 5, 2026Arrived | Dulles | Louisville | 6 | |
| Sep 4, 2026Arrived | Dulles | Louisville | -12 | |
| Sep 3, 2026Cancelled | Dulles | Louisville | Not available | Not available |
| Sep 2, 2026Cancelled | Dulles | Louisville | Not available | Not available |
| Aug 31, 2026Cancelled | Dulles | Louisville | Not available | Not available |
| Aug 30, 2026Cancelled | Dulles | Louisville | Not available | Not available |
| Aug 29, 2026Cancelled | Dulles | Louisville | Not available | Not available |
| Aug 28, 2026Cancelled | Dulles | Louisville | Not available | Not available |
| Aug 27, 2026Cancelled | Dulles | Louisville | Not available | Not available |
| Aug 26, 2026Cancelled | Dulles | Louisville | Not available | Not available |
| Aug 25, 2026Arrived | Dulles | Louisville | -31 | |
| Aug 24, 2026Arrived | Dulles | Louisville | -11 | |
| Aug 23, 2026Cancelled | Dulles | Louisville | Not available | Not available |
| Aug 22, 2026Cancelled | Dulles | Louisville | Not available | Not available |
| Aug 21, 2026Cancelled | Dulles | Louisville | Not available | Not available |