Historical on-time performance
San Antonio to Miami
1,143 miData through Dec 2025Source: US DOT · BTS
Flights on SAT–MIA arrive on time 86% of the time over the last 12 months.
On-time rate86%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 437 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesbestOn-time90%Medianon timep905 minCancel2.0%Flights345
- Envoy AirOn-time72%Medianon timep9045 minCancel1.1%Flights92
Why flights run late
Delay causes
- Airline28%
- Weather8%
- Air traffic (NAS)11%
- Late aircraft53%
- 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 → MIA
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 — 89% on time.
- Mornings89% on time · p90 10 min · 1,097 flights
- Evenings71% on time · p90 50 min · 215 flights
- Afternoons64% on time · p90 65 min · 182 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 88% on time.
- Tuesdays88% on time · p90 10 min · 211 flights
- Mondays86% on time · p90 20 min · 220 flights
- Thursdays85% on time · p90 20 min · 212 flights
- Fridays83% on time · p90 25 min · 217 flights
- Sundays81% on time · p90 25 min · 216 flights
- Wednesdays80% on time · p90 25 min · 211 flights
- Saturdays78% on time · p90 40 min · 230 flights
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