Delta Air Lines is the most reliable airline on the SLC to SAT route with a 83% on-time rate, compared to SkyWest Airlines at 70%. Based on 3,634 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SLC to SAT
Salt Lake City to San Antonio — airline reliability comparison
On-Time Rate by Airline
Delta Air Lines83%
SkyWest Airlines70%
SLC to SAT Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 83% | 0.6% | 63m | 3,634 |
| SkyWest AirlinesOOWorst | 70% | 0.0% | 23m | 20 |
Route Overview
83%
Overall On-Time
63m
Avg Delay
0.6%
Cancel Rate
3,658
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.