Historical on-time performance
Denver to Pittsburgh
1,290 miData through Dec 2025Source: US DOT · BTS
Flights on DEN–PIT arrive on time 69% of the time over the last 12 months.
On-time rate69%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 1,702 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time77%Medianon timep9040 minCancel0.2%Flights905
- Southwest AirlinesOn-time61%Median5 minp9070 minCancel0.6%Flights797
Why flights run late
Delay causes
- Airline29%
- Weather2%
- Air traffic (NAS)14%
- Late aircraft55%
- 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 DEN → PIT
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 · 783 flights
- Middays79% on time · p90 35 min · 1,782 flights
- Afternoons66% on time · p90 60 min · 438 flights
- Evenings64% on time · p90 70 min · 1,842 flights
- Overnights57% on time · p90 75 min · 294 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 75% on time.
- Sundays75% on time · p90 50 min · 750 flights
- Saturdays73% on time · p90 50 min · 596 flights
- Mondays73% on time · p90 50 min · 767 flights
- Tuesdays72% on time · p90 50 min · 748 flights
- Wednesdays72% on time · p90 45 min · 706 flights
- Thursdays70% on time · p90 55 min · 806 flights
- Fridays69% on time · p90 55 min · 766 flights
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