Historical on-time performance
St. Louis to Pittsburgh
Flights on STL–PIT arrive on time 77% of the time over the last 12 months.
based on 401 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time77%Medianon timep9040 minCancel0.2%Flights401
Why flights run late
Delay causes
- Airline26%
- Weather1%
- Air traffic (NAS)5%
- Late aircraft68%
- 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 1 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 STL → 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 74% to 91% on time.
- Mornings91% on time · p90 10 min · 231 flights
- Middays86% on time · p90 20 min · 356 flights
- Evenings76% on time · p90 55 min · 217 flights
- Afternoons74% on time · p90 35 min · 321 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 85% on time.
- Tuesdays85% on time · p90 25 min · 168 flights · limited
- Wednesdays85% on time · p90 20 min · 168 flights · limited
- Saturdays80% on time · p90 30 min · 147 flights · limited
- Thursdays80% on time · p90 35 min · 170 flights · limited
- Mondays79% on time · p90 35 min · 168 flights · limited
- Fridays79% on time · p90 30 min · 170 flights · limited
- Sundays74% on time · p90 40 min · 219 flights
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