Historical on-time performance
Chicago to Pittsburgh
402 miData through May 2026Source: US DOT · BTS
Flights on MDW–PIT arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 1,148 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time79%Medianon timep9035 minCancel1.1%Flights1,148
Why flights run late
Delay causes
- Airline31%
- Weather5%
- Air traffic (NAS)11%
- Late aircraft52%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline15%
- Weather85%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 13 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 MDW → PIT
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 89% on time.
- Mornings89% on time · p90 15 min · 889 flights
- Middays85% on time · p90 20 min · 1,108 flights
- Afternoons78% on time · p90 30 min · 358 flights
- Evenings71% on time · p90 45 min · 732 flights
- Overnights61% on time · p90 65 min · 527 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 83% on time.
- Wednesdays83% on time · p90 25 min · 531 flights
- Saturdays82% on time · p90 25 min · 343 flights
- Tuesdays81% on time · p90 25 min · 529 flights
- Thursdays78% on time · p90 35 min · 567 flights
- Mondays77% on time · p90 35 min · 563 flights
- Fridays76% on time · p90 35 min · 570 flights
- Sundays75% on time · p90 35 min · 511 flights
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