BUF to BNA flight delays & on-time performance
Nonstop flights from Buffalo Niagara International Airport to Nashville International Airport · 633 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BUF or BNA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Buffalo (BUF) to Nashville (BNA) arrived on time 78% of the time in Aug 2025 – Jul 2026, in line with the national average.
- 0.8% were cancelled, and 5% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 9am did best (92% on time); around 4pm did worst (24%).
- Wednesday was the most reliable day to fly (85% on time) and Friday the least (74%).
- The largest source of delay minutes was late-arriving aircraft (61%).
Which airline is most on time from BUF to BNA?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 78% | 0.8% | 12 min | 4.6% | 370 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am88%32 flights
- 9am92%24 flights
- 10am89%56 flights
- 11am82%11 flights
- 12pm78%103 flights
- 1pm76%88 flights
- 3pm64%22 flights
- 4pm24%17 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday78%1.9% cancelled
- Tuesday83%0.0% cancelled
- Wednesday85%0.0% cancelled
- Thursday75%0.0% cancelled
- Friday74%0.0% cancelled
- Saturday75%1.8% cancelled
- Sunday78%1.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft61%
- Airline (crew, maintenance, cleaning, fueling)22%
- Air traffic control & airport congestion17%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
BUF to BNA: common questions
- How often are BUF to BNA flights on time?
- 78% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Buffalo to Nashville cancelled?
- 0.8% of scheduled flights were cancelled (3 of 370).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 45 min behind schedule on average, and 4.6% of flights were an hour or more late.
- How long is taxi time at BUF?
- Flights on this route spent 12 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BNA to BUF — 75% on time
More flights from Buffalo
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BUF → BNA, nonstop flights by US airlines that report to the DOT. How we calculate this.