Historical on-time performance
Nashville to San Antonio
822 miData through May 2026Source: US DOT · BTS
Flights on BNA–SAT arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 932 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time80%Medianon timep9030 minCancel0.6%Flights932
Why flights run late
Delay causes
- Airline26%
- Weather1%
- Air traffic (NAS)7%
- Late aircraft65%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline17%
- Weather67%
- Air traffic (NAS)17%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 6 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 → SAT
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 — 94% on time.
- Mornings94% on time · p90 5 min · 1,080 flights
- Overnights71% on time · p90 45 min · 981 flights
- Afternoons70% on time · p90 45 min · 253 flights
- Evenings67% on time · p90 70 min · 150 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 87% on time.
- Tuesdays87% on time · p90 20 min · 352 flights
- Wednesdays86% on time · p90 15 min · 350 flights
- Saturdays84% on time · p90 25 min · 295 flights
- Fridays79% on time · p90 30 min · 377 flights
- Mondays78% on time · p90 30 min · 369 flights
- Sundays77% on time · p90 40 min · 396 flights
- Thursdays75% on time · p90 35 min · 386 flights
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