Historical on-time performance
Houston to Santa Ana
1,347 miData through Dec 2025Source: US DOT · BTS
Flights on IAH–SNA arrive on time 84% of the time over the last 12 months.
On-time rate84%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 1,169 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time84%Medianon timep9020 minCancel0.6%Flights1,169
Why flights run late
Delay causes
- Airline33%
- Weather18%
- Air traffic (NAS)15%
- Late aircraft34%
- 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 IAH → SNA
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 — 86% on time.
- Mornings86% on time · p90 20 min · 1,096 flights
- Middays81% on time · p90 40 min · 988 flights
- Evenings79% on time · p90 35 min · 560 flights
- Afternoons78% on time · p90 50 min · 222 flights
- Overnights75% on time · p90 30 min · 945 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 84% on time.
- Tuesdays84% on time · p90 25 min · 550 flights
- Wednesdays82% on time · p90 30 min · 551 flights
- Saturdays81% on time · p90 25 min · 518 flights
- Fridays81% on time · p90 30 min · 548 flights
- Mondays79% on time · p90 40 min · 548 flights
- Sundays79% on time · p90 35 min · 549 flights
- Thursdays78% on time · p90 35 min · 547 flights
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