Historical on-time performance
San Jose to Austin
1,477 miData through May 2026Source: US DOT · BTS
Flights on SJC–AUS arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 1,163 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time77%Medianon timep9035 minCancel0.3%Flights1,163
Why flights run late
Delay causes
- Airline26%
- Weather1%
- Air traffic (NAS)16%
- Late aircraft57%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline33%
- Weather67%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 3 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 SJC → AUS
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 — 92% on time.
- Mornings92% on time · p90 10 min · 1,469 flights
- Middays80% on time · p90 25 min · 902 flights
- Afternoons68% on time · p90 40 min · 590 flights
- Evenings68% on time · p90 60 min · 947 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 89% on time.
- Saturdays89% on time · p90 15 min · 313 flights
- Tuesdays85% on time · p90 20 min · 577 flights
- Wednesdays83% on time · p90 25 min · 579 flights
- Mondays78% on time · p90 35 min · 646 flights
- Sundays77% on time · p90 35 min · 496 flights
- Fridays76% on time · p90 35 min · 657 flights
- Thursdays76% on time · p90 40 min · 648 flights
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