Historical on-time performance
San Antonio to Phoenix
843 miData through May 2026Source: US DOT · BTS
Flights on SAT–PHX arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 2,424 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesbestOn-time84%Medianon timep9025 minCancel0.3%Flights1,387
- American AirlinesOn-time81%Medianon timep9050 minCancel1.0%Flights1,037
Why flights run late
Delay causes
- Airline30%
- Weather7%
- Air traffic (NAS)8%
- Late aircraft55%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline29%
- Weather71%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 14 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 → PHX
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 — 91% on time.
- Mornings91% on time · p90 10 min · 2,710 flights
- Middays88% on time · p90 15 min · 1,359 flights
- Afternoons80% on time · p90 40 min · 1,706 flights
- Evenings75% on time · p90 55 min · 1,662 flights
- Overnights71% on time · p90 55 min · 417 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 82% to 86% on time.
- Tuesdays86% on time · p90 25 min · 1,067 flights
- Saturdays85% on time · p90 25 min · 921 flights
- Wednesdays85% on time · p90 25 min · 1,091 flights
- Fridays84% on time · p90 30 min · 1,218 flights
- Sundays82% on time · p90 35 min · 1,126 flights
- Mondays82% on time · p90 30 min · 1,211 flights
- Thursdays82% on time · p90 35 min · 1,220 flights
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