Historical on-time performance
Houston to Louisville
803 miData through May 2026Source: US DOT · BTS
Flights on HOU–SDF arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 123 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time67%Medianon timep9060 minCancel0.0%Flights123
Why flights run late
Delay causes
- Airline24%
- Weather5%
- Air traffic (NAS)23%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather50%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 2 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 HOU → SDF
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 81% on time.
- Middays81% on time · p90 35 min · 397 flights
- Afternoons71% on time · p90 50 min · 509 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 79% on time.
- Fridays79% on time · p90 30 min · 147 flights · limited
- Mondays78% on time · p90 50 min · 142 flights · limited
- Wednesdays78% on time · p90 35 min · 113 flights · limited
- Tuesdays78% on time · p90 45 min · 117 flights · limited
- Thursdays77% on time · p90 45 min · 145 flights · limited
- Sundays71% on time · p90 50 min · 157 flights · limited
- Saturdays68% on time · p90 40 min · 128 flights · limited
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