Historical on-time performance
Austin to San Diego
1,164 miData through May 2026Source: US DOT · BTS
Flights on AUS–SAN arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 2,395 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesbestOn-time80%Medianon timep9035 minCancel1.3%Flights967
- Southwest AirlinesOn-time71%Medianon timep9050 minCancel0.5%Flights1,428
Why flights run late
Delay causes
- Airline26%
- Weather3%
- Air traffic (NAS)13%
- Late aircraft58%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline25%
- Weather50%
- Air traffic (NAS)25%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 20 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 AUS → SAN
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 — 86% on time.
- Mornings86% on time · p90 15 min · 1,966 flights
- Middays82% on time · p90 25 min · 1,179 flights
- Afternoons72% on time · p90 55 min · 1,477 flights
- Evenings61% on time · p90 65 min · 933 flights
- Overnights56% on time · p90 70 min · 1,000 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 80% on time.
- Tuesdays80% on time · p90 30 min · 898 flights
- Saturdays78% on time · p90 35 min · 700 flights
- Wednesdays77% on time · p90 35 min · 903 flights
- Fridays73% on time · p90 50 min · 1,048 flights
- Mondays73% on time · p90 45 min · 1,036 flights
- Sundays70% on time · p90 50 min · 961 flights
- Thursdays69% on time · p90 50 min · 1,009 flights
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