SkyWest Airlines is the most reliable airline on the SLC to GEG route with a 92% on-time rate, compared to Delta Air Lines at 84%. Based on 1,590 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SLC to GEG
Salt Lake City to Spokane — airline reliability comparison
On-Time Rate by Airline
SkyWest Airlines92%
Delta Air Lines84%
SLC to GEG Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| SkyWest AirlinesOOBest | 92% | 0.1% | 45m | 1,590 |
| Delta Air LinesDLWorst | 84% | 0.6% | 72m | 4,412 |
Route Overview
87%
Overall On-Time
69m
Avg Delay
0.4%
Cancel Rate
6,028
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.