Historical on-time performance
Chicago to Louisville
Flights on MDW–SDF arrive on time 79% of the time over the last 12 months.
based on 1,002 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 minCancel1.6%Flights1,002
Why flights run late
Delay causes
- Airline29%
- Weather2%
- Air traffic (NAS)9%
- Late aircraft60%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline6%
- Weather81%
- Air traffic (NAS)13%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 16 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 → SDF
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 64% to 88% on time.
- Middays88% on time · p90 15 min · 725 flights
- Mornings88% on time · p90 15 min · 653 flights
- Afternoons79% on time · p90 35 min · 604 flights
- Evenings75% on time · p90 45 min · 507 flights
- Overnights64% on time · p90 70 min · 584 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 83% on time.
- Wednesdays83% on time · p90 25 min · 454 flights
- Tuesdays83% on time · p90 30 min · 451 flights
- Saturdays80% on time · p90 35 min · 328 flights
- Mondays79% on time · p90 35 min · 466 flights
- Thursdays78% on time · p90 35 min · 469 flights
- Fridays77% on time · p90 40 min · 469 flights
- Sundays76% on time · p90 45 min · 436 flights
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