Is UAL4040 delayed?
Service date: · Scheduled departure date (America/Chicago)
Arrived
11 min early
Official source · Updated
Departure
Houston
IAH
Actual
Scheduled 16:52
Sep 12
Arrival
Louisville
SDF
Actual
Scheduled 23:46
Sep 12
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
IAHSDF
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 12 min early
IAH → SDF
- 23 min early
IAH → SDF
- 170 min late
IAH → SDF
- 13 min early
IAH → SDF
- 14 min early
IAH → SDF
Flight history and details
Aug 19, 2026 — Sep 18, 2026
- Observed arrivals
- 10
- Arrivals over 15 minutes late
- 1
- Observed cancellations
- 0
- Observed occurrences
- 10
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 18, 2026Arrived | Houston | Louisville | -12 | |
| Sep 16, 2026Arrived | Houston | Louisville | -23 | |
| Sep 15, 2026Arrived | Houston | Louisville | 170 | |
| Sep 14, 2026Arrived | Houston | Louisville | -13 | |
| Sep 13, 2026Arrived | Houston | Louisville | -14 | |
| Sep 12, 2026Arrived | Houston | Louisville | -11 | |
| Sep 11, 2026Arrived | Houston | Louisville | -4 | |
| Sep 10, 2026Arrived | Houston | Louisville | -14 | |
| Sep 9, 2026Arrived | Houston | Louisville | -19 | |
| Sep 8, 2026Arrived | Houston | Louisville | -13 |