Historical on-time performance
Pittsburgh to Houston
1,131 miData through Dec 2025Source: US DOT · BTS
Flights on PIT–HOU arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights
based on 152 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time76%Medianon timep9035 minCancel0.7%Flights152
Why flights run late
Delay causes
- Airline20%
- Weather2%
- Air traffic (NAS)22%
- Late aircraft56%
- 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 PIT → HOU
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 71% to 84% on time.
- Middays84% on time · p90 20 min · 216 flights
- Afternoons80% on time · p90 30 min · 128 flights · limited
- Evenings71% on time · p90 50 min · 486 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 81% on time.
- Tuesdays81% on time · p90 30 min · 122 flights · limited
- Sundays80% on time · p90 30 min · 146 flights · limited
- Fridays78% on time · p90 30 min · 125 flights · limited
- Wednesdays75% on time · p90 25 min · 121 flights · limited
- Thursdays75% on time · p90 70 min · 124 flights · limited
- Saturdays73% on time · p90 40 min · 86 flights · limited
- Mondays70% on time · p90 55 min · 126 flights · limited
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