Historical on-time performance
Buffalo to Nashville
633 miData through May 2026Source: US DOT · BTS
Flights on BUF–BNA arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights
based on 342 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time78%Medianon timep9025 minCancel0.9%Flights342
Why flights run late
Delay causes
- Airline22%
- Weather1%
- Air traffic (NAS)22%
- Late aircraft55%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 3 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BUF → BNA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 93% on time.
- Mornings93% on time · p90 10 min · 113 flights · limited
- Middays83% on time · p90 25 min · 446 flights
- Afternoons73% on time · p90 40 min · 156 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 79% to 83% on time.
- Sundays83% on time · p90 25 min · 109 flights · limited
- Fridays83% on time · p90 25 min · 107 flights · limited
- Thursdays82% on time · p90 25 min · 106 flights · limited
- Saturdays81% on time · p90 20 min · 108 flights · limited
- Mondays79% on time · p90 25 min · 105 flights · limited
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