Historical on-time performance
Kansas City to Chicago
405 miData through May 2026Source: US DOT · BTS
Flights on MCI–MDW arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 2,097 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 timep9030 minCancel1.1%Flights2,097
Why flights run late
Delay causes
- Airline23%
- Weather4%
- Air traffic (NAS)16%
- Late aircraft57%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline22%
- Weather78%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 23 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 MCI → MDW
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 — 91% on time.
- Mornings91% on time · p90 10 min · 1,829 flights
- Middays87% on time · p90 15 min · 1,643 flights
- Afternoons76% on time · p90 35 min · 1,253 flights
- Overnights76% on time · p90 50 min · 599 flights
- Evenings70% on time · p90 50 min · 1,210 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 87% on time.
- Wednesdays87% on time · p90 15 min · 952 flights
- Saturdays85% on time · p90 20 min · 690 flights
- Tuesdays84% on time · p90 20 min · 952 flights
- Thursdays82% on time · p90 25 min · 991 flights
- Mondays82% on time · p90 25 min · 993 flights
- Fridays80% on time · p90 30 min · 995 flights
- Sundays76% on time · p90 40 min · 961 flights
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