Historical on-time performance
Pittsburgh to Houston
1,117 miData through Dec 2025Source: US DOT · BTS
Flights on PIT–IAH arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 623 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time80%Medianon timep9030 minCancel0.6%Flights623
Why flights run late
Delay causes
- Airline25%
- Weather5%
- Air traffic (NAS)47%
- Late aircraft24%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PIT → IAH
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 — 88% on time.
- Mornings88% on time · p90 10 min · 961 flights
- Middays76% on time · p90 45 min · 160 flights · limited
- Afternoons73% on time · p90 55 min · 706 flights
- Evenings66% on time · p90 120 min · 114 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 87% on time.
- Saturdays87% on time · p90 15 min · 214 flights
- Tuesdays82% on time · p90 35 min · 283 flights
- Fridays81% on time · p90 45 min · 308 flights
- Wednesdays80% on time · p90 35 min · 293 flights
- Mondays79% on time · p90 25 min · 309 flights
- Sundays79% on time · p90 30 min · 253 flights
- Thursdays76% on time · p90 25 min · 302 flights
Advertisement
Keep exploring