Houston (HOU) to Louisville (SDF): On-Time Performance
Data through July 2026
Houston (HOU) to Louisville (SDF) is a thinner route than most in this dataset — 284 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 75% arrived on time.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 0.78
- last 12 months
- Duration
- 2h 9m
- scheduled
- Distance
- 803 mi
Monthly on-time trend
Best time to fly from HOU to SDF
Aim for departures around 12 p.m. (86% on-time); avoid 2 p.m. departures (59%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 16 min |
| Tuesdaybest | 79% | 9 min |
| Wednesday | 77% | 16 min |
| Thursday | 78% | 17 min |
| Friday | 78% | 11 min |
| Saturday | 68% | 16 min |
| Sunday | 69% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft48%
- Airline operations33%
- National airspace system13%
- Weather5%
- Security1%
Frequently asked questions
- How often are flights from HOU to SDF delayed?
- 25% of HOU–SDF flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 15 minutes.
- What is the best time of day to fly from HOU to SDF?
- Departures around 12 p.m. have the best record (86% on-time), while departures around 2 p.m. have the worst (59%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from HOU to SDF?
- The scheduled HOU–SDF flight time averages 2h 9m over 803 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are HOU to SDF flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from HOU to SDF?
- July 2024 was the roughest month in this dataset, with only 40% of arrivals on time. The best was September 2024 at 93%. If your dates are flexible, that 53-point gap is worth planning around.
Explore related pages
More routes from HOU
Other ways to fly to Louisville (SDF)
Related guides
Based on 626 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.