Historical on-time performance
San Antonio to St. Louis
Flights on SAT–STL arrive on time 87% of the time over the last 12 months.
based on 491 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time87%Medianon timep9020 minCancel0.0%Flights491
Why flights run late
Delay causes
- Airline25%
- Weather0%
- Air traffic (NAS)8%
- Late aircraft66%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline47%
- Weather47%
- Air traffic (NAS)7%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 15 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 SAT → STL
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 68% to 95% on time.
- Mornings95% on time · p90 5 min · 655 flights
- Middays93% on time · p90 10 min · 315 flights
- Afternoons74% on time · p90 35 min · 483 flights
- Evenings68% on time · p90 50 min · 142 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 91% on time.
- Saturdays91% on time · p90 10 min · 152 flights · limited
- Tuesdays91% on time · p90 10 min · 234 flights
- Mondays87% on time · p90 20 min · 252 flights
- Wednesdays87% on time · p90 15 min · 231 flights
- Thursdays83% on time · p90 25 min · 254 flights
- Fridays83% on time · p90 25 min · 258 flights
- Sundays80% on time · p90 40 min · 214 flights
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