Delta Air Lines is the most reliable airline on the BIL to SLC route with a 92% on-time rate, compared to SkyWest Airlines at 91%. Based on 1,319 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BIL to SLC
Billings to Salt Lake City — airline reliability comparison
On-Time Rate by Airline
Delta Air Lines92%
SkyWest Airlines91%
BIL to SLC Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 92% | 0.8% | 122m | 1,319 |
| SkyWest AirlinesOOWorst | 91% | 0.5% | 62m | 2,439 |
Route Overview
91%
Overall On-Time
87m
Avg Delay
0.6%
Cancel Rate
3,758
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.