Southwest Airlines is the most reliable airline on the SDF to DAL route with a 81% on-time rate. Based on 684 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SDF to DAL
Louisville to Dallas — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines81%
SDF to DAL Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 81% | 0.9% | 52m | 684 |
Route Overview
82%
Overall On-Time
51m
Avg Delay
1%
Cancel Rate
684
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.