Louisville (SDF) to Nashville (BNA): On-Time Performance
Data through July 2026
The calendar drives reliability on SDF–BNA. January 2026 flights landed on schedule 97% of the time, but July 2026 dropped to 69% — a gap of 28 points. Across the full period the route averages 79% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 53%), which matters most in the rough months.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 1.0%
- Flights/day
- 1.4
- last 12 months
- Duration
- 54m
- scheduled
- Distance
- 151 mi
Monthly on-time trend
Best time to fly from SDF to BNA
Aim for departures around 6 a.m. (96% on-time); avoid 5 p.m. departures (50%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 11 min |
| Tuesday | 84% | 11 min |
| Wednesday | 82% | 7 min |
| Thursday | 76% | 11 min |
| Friday | 80% | 12 min |
| Saturdaybest | 86% | 7 min |
| Sunday | 71% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft44%
- Airline operations23%
- National airspace system30%
- Weather3%
Frequently asked questions
- How often are flights from SDF to BNA delayed?
- 21% of SDF–BNA 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 10 minutes.
- What is the best time of day to fly from SDF to BNA?
- Departures around 6 a.m. have the best record (96% on-time), while departures around 5 p.m. have the worst (50%). 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 54m over 151 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are SDF to BNA flights cancelled?
- 1% 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 SDF to BNA?
- July 2026 was the roughest month in this dataset, with only 69% of arrivals on time. The best was January 2026 at 97%. If your dates are flexible, that 28-point gap is worth planning around.
Explore related pages
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Related guides
Based on 505 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.