Historical on-time performance
San Diego to Houston
Flights on SAN–IAH arrive on time 83% of the time over the last 12 months.
based on 1,692 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time83%Medianon timep9030 minCancel0.7%Flights1,692
Why flights run late
Delay causes
- Airline15%
- Weather4%
- Air traffic (NAS)30%
- Late aircraft50%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline45%
- Weather45%
- Air traffic (NAS)9%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 11 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 SAN → IAH
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 81% to 87% on time.
- Mornings87% on time · p90 15 min · 1,277 flights
- Evenings83% on time · p90 30 min · 329 flights
- Middays82% on time · p90 30 min · 2,844 flights
- Afternoons81% on time · p90 40 min · 849 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 81% to 86% on time.
- Tuesdays86% on time · p90 15 min · 706 flights
- Wednesdays84% on time · p90 25 min · 772 flights
- Saturdays84% on time · p90 25 min · 688 flights
- Thursdays82% on time · p90 35 min · 784 flights
- Mondays82% on time · p90 30 min · 785 flights
- Fridays81% on time · p90 30 min · 782 flights
- Sundays81% on time · p90 35 min · 782 flights
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