Historical on-time performance
Charlotte to San Antonio
1,095 miData through Dec 2025Source: US DOT · BTS
Flights on CLT–SAT arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 1,384 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time74%Medianon timep9055 minCancel0.8%Flights1,384
Why flights run late
Delay causes
- Airline33%
- Weather6%
- Air traffic (NAS)12%
- Late aircraft50%
- 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 CLT → SAT
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 62% to 85% on time.
- Mornings85% on time · p90 25 min · 820 flights
- Middays83% on time · p90 25 min · 466 flights
- Afternoons74% on time · p90 55 min · 889 flights
- Overnights63% on time · p90 80 min · 953 flights
- Evenings62% on time · p90 75 min · 1,067 flights
Best day of week
Wednesdays are the most reliable day to fly this route — 78% on time.
- Wednesdays78% on time · p90 40 min · 597 flights
- Tuesdays73% on time · p90 50 min · 567 flights
- Mondays73% on time · p90 60 min · 615 flights
- Saturdays71% on time · p90 65 min · 574 flights
- Fridays70% on time · p90 60 min · 611 flights
- Thursdays70% on time · p90 60 min · 611 flights
- Sundays68% on time · p90 70 min · 621 flights
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