United Airlines
Is UA3980 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This update may be out of date.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
Aug 31
Arrival
Louisville
SDF
Scheduled
Aug 31
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
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 |