HOU to SDF flight delays
Houston, TX (HOU) Louisville, KY (SDF) · 803 miles
30 flights · March 2025 – August 2026 · US Bureau of Transportation Statistics
This route flew fewer than 50 times in the period, which is too few for an on-time rate to mean anything. The figures below are shown as recorded, but the route is not graded.
63.33%
Arrived on time
Within 15 minutes of schedule
0%
Cancelled
Share of scheduled flights
50 min
When late, late by
Average across delayed arrivals
19 min
Delay per flight
Averaged over every flight flown
What the record says about this route
This is a late route. Flights from Houston to Louisville miss their scheduled arrival often enough that a tight connection at the far end is a connection at risk.
Every airline on HOU to SDF
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 30 | 63.33% | 0% | 50 min | — |
The return leg
SDF to HOU Louisville back to Houston 66.67% on time —Other routes from Houston
Common questions
Are flights from Houston to Louisville usually delayed?
63.33% of flights on the HOU to SDF route arrived within 15 minutes of schedule, so roughly 4 in every ten arrived late. That is worse than the average route in this record.
How often are HOU to SDF flights cancelled?
0% of scheduled flights did not operate — about 1 in every thousand. That is in the normal range.
When HOU to SDF flights are late, how late are they?
About 50 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on HOU to SDF during March 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →