Historical on-time performance
San Jose to Houston
1,621 miData through May 2026Source: US DOT · BTS
Flights on SJC–HOU arrive on time 90% of the time over the last 12 months.
On-time rate90%arrived within 15 min
p90 delay10 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 337 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time90%Medianon timep9010 minCancel0.3%Flights337
Why flights run late
Delay causes
- Airline48%
- Weather0%
- Air traffic (NAS)23%
- Late aircraft29%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline100%
- Weather0%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 1 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 → HOU
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 — 93% on time.
- Mornings93% on time · p90 5 min · 734 flights
- Middays80% on time · p90 25 min · 340 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 81% to 96% on time.
- Saturdays96% on time · p90 5 min · 157 flights · limited
- Tuesdays92% on time · p90 10 min · 156 flights · limited
- Wednesdays90% on time · p90 10 min · 157 flights · limited
- Sundays89% on time · p90 15 min · 156 flights · limited
- Fridays89% on time · p90 15 min · 156 flights · limited
- Thursdays85% on time · p90 20 min · 157 flights · limited
- Mondays81% on time · p90 20 min · 156 flights · limited
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