Buffalo (BUF) to Nashville (BNA): On-Time Performance
Data through July 2026
Buffalo (BUF) to Nashville (BNA) effectively runs on two schedules. In September 2024, 100% of arrivals were on time; in December 2025 that fell to 56% — a 44-point seasonal swing. Across the full period the route averages 81% on-time against a national 78%.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 1.0
- last 12 months
- Duration
- 1h 60m
- scheduled
- Distance
- 633 mi
Monthly on-time trend
Best time to fly from BUF to BNA
Aim for departures around 10 a.m. (91% on-time); avoid 4 p.m. departures (58%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 9 min |
| Tuesdaybest | 86% | 10 min |
| Wednesday | 84% | 9 min |
| Thursday | 80% | 8 min |
| Friday | 82% | 13 min |
| Saturday | 77% | 13 min |
| Sunday | 82% | 15 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 operations24%
- National airspace system15%
- Weather1%
Frequently asked questions
- How often are flights from BUF to BNA delayed?
- 19% of BUF–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 11 minutes.
- What is the best time of day to fly from BUF to BNA?
- Departures around 10 a.m. have the best record (91% on-time), while departures around 4 p.m. have the worst (58%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BUF to BNA?
- The scheduled BUF–BNA flight time averages 1h 60m over 633 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are BUF to BNA flights cancelled?
- 0.4% 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 BUF to BNA?
- December 2025 was the roughest month in this dataset, with only 56% of arrivals on time. The best was September 2024 at 100%. If your dates are flexible, that 44-point gap is worth planning around.
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Related guides
Based on 705 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.