Historical on-time performance
Houston to Pittsburgh
Flights on IAH–PIT arrive on time 79% of the time over the last 12 months.
based on 697 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time79%Medianon timep9035 minCancel0.4%Flights697
Why flights run late
Delay causes
- Airline33%
- Weather3%
- Air traffic (NAS)12%
- Late aircraft51%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- 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 IAH → PIT
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 57% to 85% on time.
- Mornings85% on time · p90 10 min · 172 flights · limited
- Middays84% on time · p90 30 min · 899 flights
- Evenings73% on time · p90 60 min · 751 flights
- Overnights57% on time · p90 75 min · 143 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 82% on time.
- Tuesdays82% on time · p90 35 min · 279 flights
- Wednesdays79% on time · p90 50 min · 296 flights
- Mondays79% on time · p90 55 min · 309 flights
- Saturdays78% on time · p90 50 min · 206 flights
- Fridays77% on time · p90 55 min · 305 flights
- Thursdays76% on time · p90 40 min · 306 flights
- Sundays74% on time · p90 40 min · 267 flights
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