Historical on-time performance
Los Angeles to Louisville
1,843 miData through May 2026Source: US DOT · BTS
Flights on LAX–SDF arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 30 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Spirit AirlinesOn-time83%Medianon timep9015 minCancel0.0%Flights30
Why flights run late
Delay causes
- Airline32%
- Weather9%
- Air traffic (NAS)48%
- Late aircraft11%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline70%
- Weather20%
- Air traffic (NAS)10%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 10 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 LAX → 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 84% to 87% on time.
- Mornings87% on time · p90 20 min · 339 flights
- Middays84% on time · p90 25 min · 116 flights · limited
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