Historical on-time performance
San Antonio to Nashville
822 miData through Dec 2025Source: US DOT · BTS
Flights on SAT–BNA arrive on time 86% of the time over the last 12 months.
On-time rate86%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights
based on 920 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time86%Medianon timep9020 minCancel0.7%Flights920
Why flights run late
Delay causes
- Airline20%
- Weather1%
- Air traffic (NAS)31%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SAT → BNA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 96% on time.
- Mornings96% on time · p90 5 min · 1,088 flights
- Middays86% on time · p90 20 min · 269 flights
- Afternoons77% on time · p90 35 min · 764 flights
- Evenings70% on time · p90 55 min · 299 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 81% to 88% on time.
- Saturdays88% on time · p90 20 min · 286 flights
- Tuesdays88% on time · p90 15 min · 334 flights
- Mondays88% on time · p90 15 min · 354 flights
- Wednesdays86% on time · p90 20 min · 332 flights
- Fridays85% on time · p90 20 min · 355 flights
- Thursdays84% on time · p90 20 min · 366 flights
- Sundays81% on time · p90 35 min · 393 flights
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