Historical on-time performance
Louisville to Dallas
725 miData through Dec 2025Source: US DOT · BTS
Flights on SDF–DAL arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 246 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 minCancel0.8%Flights246
Why flights run late
Delay causes
- Airline15%
- Weather4%
- Air traffic (NAS)26%
- Late aircraft55%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SDF → DAL
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 65% to 82% on time.
- Middays82% on time · p90 25 min · 260 flights
- Afternoons81% on time · p90 35 min · 184 flights · limited
- Evenings65% on time · p90 45 min · 103 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 88% on time.
- Tuesdays88% on time · p90 20 min · 68 flights · limited
- Mondays85% on time · p90 15 min · 67 flights · limited
- Wednesdays85% on time · p90 30 min · 67 flights · limited
- Saturdays80% on time · p90 20 min · 93 flights · limited
- Fridays79% on time · p90 25 min · 68 flights · limited
- Thursdays75% on time · p90 45 min · 68 flights · limited
- Sundays72% on time · p90 45 min · 146 flights · limited
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