Historical on-time performance
San Diego to Austin
1,164 miData through Dec 2025Source: US DOT · BTS
Flights on SAN–AUS arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 2,055 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Southwest AirlinesOn-time74%Medianon timep9040 minCancel0.2%Flights1,376
- SkyWest AirlinesOn-time73%Medianon timep9060 minCancel0.9%Flights679
Why flights run late
Delay causes
- Airline23%
- Weather3%
- Air traffic (NAS)17%
- Late aircraft57%
- 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 SAN → AUS
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 — 85% on time.
- Mornings85% on time · p90 20 min · 2,070 flights
- Evenings70% on time · p90 60 min · 1,505 flights
- Afternoons69% on time · p90 45 min · 1,013 flights
- Middays67% on time · p90 40 min · 1,457 flights
- Overnights59% on time · p90 70 min · 209 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 81% on time.
- Saturdays81% on time · p90 35 min · 644 flights
- Tuesdays79% on time · p90 30 min · 871 flights
- Wednesdays79% on time · p90 30 min · 888 flights
- Mondays72% on time · p90 40 min · 983 flights
- Thursdays70% on time · p90 50 min · 962 flights
- Sundays70% on time · p90 50 min · 926 flights
- Fridays68% on time · p90 50 min · 980 flights
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