Historical on-time performance
Indianapolis to Chicago
162 miData through Dec 2025Source: US DOT · BTS
Flights on IND–MDW arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights
based on 298 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time80%Medianon timep9025 minCancel1.0%Flights298
Why flights run late
Delay causes
- Airline22%
- Weather1%
- Air traffic (NAS)47%
- Late aircraft31%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly IND → MDW
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 — 90% on time.
- Mornings90% on time · p90 10 min · 149 flights · limited
- Evenings69% on time · p90 35 min · 111 flights · limited
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