Dallas (DAL) to Louisville (SDF): On-Time Performance
Data through July 2026
Dallas (DAL) to Louisville (SDF) is a thinner route than most in this dataset — 350 departures over the past year, roughly 7 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
- 0.9%
- Flights/day
- 0.96
- last 12 months
- Duration
- 1h 58m
- scheduled
- Distance
- 725 mi
Monthly on-time trend
Best time to fly from DAL to SDF
Aim for departures around 10 a.m. (85% on-time); avoid 4 p.m. departures (53%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 71% | 16 min |
| Tuesday | 84% | 9 min |
| Wednesdaybest | 86% | 13 min |
| Thursday | 65% | 22 min |
| Friday | 70% | 19 min |
| Saturday | 71% | 12 min |
| Sunday | 74% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft42%
- Airline operations38%
- National airspace system15%
- Weather6%
Frequently asked questions
- How often are flights from DAL to SDF delayed?
- 26% of DAL–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 DAL to SDF?
- Departures around 10 a.m. have the best record (85% on-time), while departures around 4 p.m. have the worst (53%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DAL to SDF?
- The scheduled DAL–SDF flight time averages 1h 58m over 725 miles. Actual arrival times vary — flights on this route land 15+ minutes late 26% of the time.
- How often are DAL to SDF flights cancelled?
- 0.9% 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 DAL to SDF?
- June 2026 was the roughest month in this dataset, with only 47% of arrivals on time. The best was September 2025 at 96%. If your dates are flexible, that 50-point gap is worth planning around.
Explore related pages
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Related guides
Based on 660 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.