Dallas/Fort Worth (DFW) to Louisville (SDF): On-Time Performance
Data through July 2026
Dallas/Fort Worth (DFW) to Louisville (SDF) effectively runs on two schedules. In October 2024, 90% of arrivals were on time; in June 2025 that fell to 53% — a 38-point seasonal swing. Across the full period the route averages 72% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 63%), which matters most in the rough months.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 23 min
- completed flights
- Cancelled
- 2.8%
- Flights/day
- 5.5
- last 12 months
- Duration
- 2h 11m
- scheduled
- Distance
- 733 mi
Best airline from DFW to SDF
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 84% | 9 min | 2.0% | 1,129 |
| PSA Airlines | 77% | 23 min | 4.6% | 797 |
| American Airlines | 65% | 30 min | 2.6% | 2,266 |
Monthly on-time trend
Best time to fly from DFW to SDF
Aim for departures around 10 a.m. (86% on-time); avoid 3 p.m. departures (42%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 70% | 26 min |
| Tuesdaybest | 79% | 22 min |
| Wednesday | 75% | 23 min |
| Thursday | 70% | 24 min |
| Friday | 70% | 21 min |
| Saturday | 74% | 21 min |
| Sunday | 69% | 23 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft53%
- Airline operations32%
- National airspace system10%
- Weather6%
Frequently asked questions
- How often are flights from DFW to SDF delayed?
- 28% of DFW–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 23 minutes.
- Which airline is most reliable from DFW to SDF?
- Envoy Air has the best on-time record on this route at 84%, based on 1,129 flights. 3 airlines flew DFW–SDF frequently enough to compare in this period.
- What is the best time of day to fly from DFW to SDF?
- Departures around 10 a.m. have the best record (86% on-time), while departures around 3 p.m. have the worst (42%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DFW to SDF?
- The scheduled DFW–SDF flight time averages 2h 11m over 733 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are DFW to SDF flights cancelled?
- 2.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from DFW to SDF?
- June 2025 was the roughest month in this dataset, with only 53% of arrivals on time. The best was October 2024 at 90%. If your dates are flexible, that 38-point gap is worth planning around.
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Based on 4,276 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.