Louisville (SDF) to Nashville (BNA): On-Time Performance
Data through May 2026
Southwest Airlines effectively owns the SDF–BNA corridor, operating 100% of its flights and landing on time 82% of the time. That concentration hasn't hurt reliability: the route beats the national on-time average by 3 points (82% vs 78%).
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 1.0%
- Flights/day
- 1.0
- last 12 months
- Duration
- 55m
- scheduled
- Distance
- 151 mi
Monthly on-time trend
Best time to fly from SDF to BNA
Aim for departures around 6 a.m. (95% on-time); avoid 5 p.m. departures (47%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 9 min |
| Tuesday | 86% | 9 min |
| Wednesday | 83% | 6 min |
| Thursday | 79% | 11 min |
| Friday | 80% | 11 min |
| Saturdaybest | 87% | 7 min |
| Sunday | 75% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft47%
- Airline operations23%
- National airspace system30%
Frequently asked questions
- How often are flights from SDF to BNA delayed?
- 19% of SDF–BNA 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 10 minutes.
- What is the best time of day to fly from SDF to BNA?
- Departures around 6 a.m. have the best record (95% on-time), while departures around 5 p.m. have the worst (47%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SDF to BNA?
- The scheduled SDF–BNA flight time averages 55m over 151 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are SDF to BNA flights cancelled?
- 1% 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 SDF to BNA?
- Saturday flights have the best record at 87% on-time. Day-of-week differences on this route are meaningful — Sunday trails at 75%.
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Based on 383 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.