Delta Air Lines is the most reliable airline on the SLC to MIA route with a 84% on-time rate, compared to American Airlines at 77%. Based on 1,307 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SLC to MIA
Salt Lake City to Miami — airline reliability comparison
On-Time Rate by Airline
Delta Air Lines84%
American Airlines77%
SLC to MIA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 84% | 0.5% | 47m | 1,307 |
| American AirlinesAAWorst | 77% | 0.8% | 89m | 1,002 |
Route Overview
81%
Overall On-Time
69m
Avg Delay
0.6%
Cancel Rate
2,320
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.