Route Reliability
Houston → Louisville
IAH–SDF · 788 miles · George Bush Intercontinental Airport to Louisville Muhammad Ali International Airport
- 81%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 1.6%
- Cancelled
- 1,068
- Flights in the data
Data through May 2026.
Airlines on this route
- United Airlines81% on time · 1,067 flights
- American Airlines100% on time · 1 flights
Too little history on this route to call a winner. We rank airlines only after 100 flights each.
What the data says
Morning flights do better here.
IAH–SDF flights departing between 9 AM–12 PM arrived on time 85% of the time, versus 77% between 6–9 PM.
Thursday comes out ahead.
A small edge: 83% on time on Thursdays against 79% on Sundays.
Slipping a little lately.
IAH–SDF flights arrived on time 81% of the time over the last three months in the data, compared with 86% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon79%(156 flights)
- Tue81%(150 flights)
- Wed82%(153 flights)
- Thu83%(152 flights)
- Fri81%(156 flights)
- Sat81%(133 flights)
- Sun79%(150 flights)
- 6–9 AM80%(51 flights)
- 9 AM–12 PM85%(290 flights)
- 12–3 PM—(1 flights)
- 3–6 PM82%(351 flights)
- 6–9 PM77%(357 flights)
Jun 57% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 57% | 85 |
| July 2025 | 72% | 86 |
| August 2025 | 74% | 90 |
| September 2025 | 91% | 89 |
| October 2025 | 82% | 93 |
| November 2025 | 92% | 86 |
| December 2025 | 83% | 92 |
| January 2026 | 84% | 82 |
| February 2026 | 92% | 79 |
| March 2026 | 76% | 82 |
| April 2026 | 86% | 92 |
| May 2026 | 82% | 94 |
Same trip, other airports
Keep nerding
Based on 1,068 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.