Nashville (BNA) to St. Louis (STL): On-Time Performance
Data through July 2026
The calendar drives reliability on BNA–STL. January 2026 flights landed on schedule 93% of the time, but May 2026 dropped to 66% — a gap of 27 points. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (93% vs 73%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 3.5
- last 12 months
- Duration
- 1h 18m
- scheduled
- Distance
- 272 mi
Monthly on-time trend
Best time to fly from BNA to STL
Aim for departures around 6 a.m. (96% on-time); avoid 7 p.m. departures (59%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 14 min |
| Tuesday | 86% | 7 min |
| Wednesdaybest | 86% | 9 min |
| Thursday | 81% | 11 min |
| Friday | 79% | 12 min |
| Saturday | 85% | 8 min |
| Sunday | 78% | 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 aircraft65%
- Airline operations25%
- National airspace system8%
- Weather2%
Frequently asked questions
- How often are flights from BNA to STL delayed?
- 18% of BNA–STL 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 BNA to STL?
- Departures around 6 a.m. have the best record (96% on-time), while departures around 7 p.m. have the worst (59%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BNA to STL?
- The scheduled BNA–STL flight time averages 1h 18m over 272 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are BNA to STL flights cancelled?
- 1.2% 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 BNA to STL?
- May 2026 was the roughest month in this dataset, with only 66% of arrivals on time. The best was January 2026 at 93%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 2,658 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.