Nashville (BNA) to Buffalo (BUF): On-Time Performance
Data through May 2026
When you fly BNA to BUF matters as much as anything else about the booking: the route swung from 94% on-time in August 2024 to just 53% in June 2025. Across the full period the route averages 83% on-time against a national 78%.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 1.0
- last 12 months
- Duration
- 1h 52m
- scheduled
- Distance
- 633 mi
Monthly on-time trend
Best time to fly from BNA to BUF
Aim for departures around 9 a.m. (97% on-time); avoid 2 p.m. departures (73%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 14 min |
| Tuesdaybest | 94% | 7 min |
| Wednesday | 89% | 6 min |
| Thursday | 78% | 12 min |
| Friday | 83% | 13 min |
| Saturday | 83% | 9 min |
| Sunday | 84% | 9 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft57%
- Airline operations33%
- National airspace system8%
- Weather2%
- Security1%
Frequently asked questions
- How often are flights from BNA to BUF delayed?
- 17% of BNA–BUF 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 BNA to BUF?
- Departures around 9 a.m. have the best record (97% on-time), while departures around 2 p.m. have the worst (73%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BNA to BUF?
- The scheduled BNA–BUF flight time averages 1h 52m over 633 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are BNA to BUF flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from BNA to BUF?
- June 2025 was the roughest month in this dataset, with only 53% of arrivals on time. The best was August 2024 at 94%. If your dates are flexible, that 40-point gap is worth planning around.
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Based on 674 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.