Historical on-time performance
Nashville to Birmingham
177 miData through May 2026Source: US DOT · BTS
Flights on BNA–BHM 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 427 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%Flights427
Why flights run late
Delay causes
- Airline34%
- Weather2%
- Air traffic (NAS)11%
- Late aircraft54%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline25%
- Weather75%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 4 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 BNA → BHM
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 80% to 82% on time.
- Middays82% on time · p90 25 min · 272 flights
- Afternoons80% on time · p90 25 min · 237 flights
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