Southwest Airlines is the most reliable airline on the DAL to MIA route with a 75% on-time rate. Based on 1,650 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: DAL to MIA
Dallas to Miami — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines75%
DAL to MIA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 75% | 1.4% | 65m | 1,650 |
Route Overview
74%
Overall On-Time
66m
Avg Delay
1.6%
Cancel Rate
1,650
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.