Historical on-time performance
New Orleans to San Antonio
494 miData through May 2026Source: US DOT · BTS
Flights on MSY–SAT arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 311 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 timep9025 minCancel0.3%Flights311
Why flights run late
Delay causes
- Airline17%
- Weather8%
- Air traffic (NAS)9%
- Late aircraft66%
- 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 1 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 MSY → SAT
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 83% on time.
- Middays83% on time · p90 35 min · 269 flights
- Afternoons74% on time · p90 40 min · 682 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 82% on time.
- Wednesdays82% on time · p90 35 min · 139 flights · limited
- Tuesdays82% on time · p90 35 min · 142 flights · limited
- Mondays81% on time · p90 30 min · 165 flights · limited
- Sundays76% on time · p90 45 min · 228 flights
- Saturdays75% on time · p90 45 min · 149 flights · limited
- Fridays72% on time · p90 45 min · 169 flights · limited
- Thursdays67% on time · p90 40 min · 168 flights · limited
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