SkyWest Airlines is the most reliable airline on the BOI to SLC route with a 91% on-time rate, compared to Delta Air Lines at 88%. Based on 1,157 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BOI to SLC
Boise to Salt Lake City — airline reliability comparison
On-Time Rate by Airline
SkyWest Airlines91%
Delta Air Lines88%
BOI to SLC Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| SkyWest AirlinesOOBest | 91% | 0.2% | 47m | 1,157 |
| Delta Air LinesDLWorst | 88% | 0.8% | 97m | 4,907 |
Route Overview
89%
Overall On-Time
89m
Avg Delay
0.7%
Cancel Rate
6,090
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.