American Airlines is the most reliable airline on the MIA to SLC route with a 78% on-time rate, compared to Delta Air Lines at 76%. Based on 1,002 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MIA to SLC
Miami to Salt Lake City — airline reliability comparison
On-Time Rate by Airline
American Airlines78%
Delta Air Lines76%
MIA to SLC Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| American AirlinesAABest | 78% | 0.8% | 64m | 1,002 |
| Delta Air LinesDLWorst | 76% | 0.5% | 88m | 1,307 |
Route Overview
76%
Overall On-Time
75m
Avg Delay
0.6%
Cancel Rate
2,320
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.