St. Louis (STL) to Nashville (BNA): On-Time Performance
Data through July 2026
The calendar drives reliability on STL–BNA. August 2024 flights landed on schedule 95% of the time, but July 2026 dropped to 69% — a gap of 26 points. Across the full period the route averages 83% on-time against a national 78%. Morning departures also hold up better than evening ones (93% vs 69%), which matters most in the rough months.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 3.5
- last 12 months
- Duration
- 1h 10m
- scheduled
- Distance
- 272 mi
Monthly on-time trend
Best time to fly from STL to BNA
Aim for departures around 6 a.m. (98% on-time); avoid 9 p.m. departures (49%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 14 min |
| Tuesdaybest | 87% | 7 min |
| Wednesday | 86% | 8 min |
| Thursday | 82% | 11 min |
| Friday | 81% | 10 min |
| Saturday | 85% | 10 min |
| Sunday | 83% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft61%
- Airline operations22%
- National airspace system14%
- Weather3%
Frequently asked questions
- How often are flights from STL to BNA delayed?
- 18% of STL–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 STL to BNA?
- Departures around 6 a.m. have the best record (98% on-time), while departures around 9 p.m. have the worst (49%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from STL to BNA?
- The scheduled STL–BNA flight time averages 1h 10m over 272 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are STL to BNA flights cancelled?
- 0.8% 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 STL to BNA?
- July 2026 was the roughest month in this dataset, with only 69% of arrivals on time. The best was August 2024 at 95%. If your dates are flexible, that 26-point gap is worth planning around.
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Based on 2,649 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.