Historical on-time performance
Phoenix to Louisville
1,506 miData through Dec 2025Source: US DOT · BTS
Flights on PHX–SDF arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 312 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time75%Medianon timep9030 minCancel0.3%Flights312
Why flights run late
Delay causes
- Airline53%
- Weather0%
- Air traffic (NAS)7%
- Late aircraft40%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PHX → SDF
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 58% to 83% on time.
- Mornings83% on time · p90 20 min · 206 flights
- Middays80% on time · p90 25 min · 430 flights
- Afternoons71% on time · p90 55 min · 175 flights · limited
- Evenings58% on time · p90 85 min · 107 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 82% on time.
- Saturdays82% on time · p90 25 min · 166 flights · limited
- Thursdays77% on time · p90 30 min · 123 flights · limited
- Sundays76% on time · p90 40 min · 153 flights · limited
- Wednesdays75% on time · p90 30 min · 122 flights · limited
- Tuesdays75% on time · p90 35 min · 122 flights · limited
- Fridays74% on time · p90 40 min · 121 flights · limited
- Mondays73% on time · p90 65 min · 122 flights · limited
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