Nashville (BNA) to Louisville (SDF): On-Time Performance
Data through May 2026
Southwest Airlines effectively owns the BNA–SDF corridor, operating 100% of its flights and landing on time 76% of the time. The route overall runs 76% on-time, about level with the national average.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 1.1
- last 12 months
- Duration
- 59m
- scheduled
- Distance
- 151 mi
Monthly on-time trend
Best time to fly from BNA to SDF
Aim for departures around 3 p.m. (89% on-time); avoid 7 p.m. departures (55%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 15 min |
| Tuesdaybest | 84% | 11 min |
| Wednesday | 80% | 12 min |
| Thursday | 80% | 11 min |
| Friday | 61% | 21 min |
| Saturday | 72% | 16 min |
| Sunday | 80% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft71%
- Airline operations24%
- National airspace system5%
Frequently asked questions
- How often are flights from BNA to SDF delayed?
- 24% of BNA–SDF flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 14 minutes.
- What is the best time of day to fly from BNA to SDF?
- Departures around 3 p.m. have the best record (89% on-time), while departures around 7 p.m. have the worst (55%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BNA to SDF?
- The scheduled BNA–SDF flight time averages 59m over 151 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
- How often are BNA to SDF flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What day of the week is most reliable for BNA to SDF?
- Tuesday flights have the best record at 84% on-time. Day-of-week differences on this route are meaningful — Friday trails at 61%.
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Based on 384 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.