Alaska Airlines is the most reliable airline on the SLC to PDX route with a 98% on-time rate, compared to Frontier Airlines at 80%. Based on 45 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SLC to PDX
Salt Lake City to Portland — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines98%
SkyWest Airlines90%
Delta Air Lines88%
Frontier Airlines80%
SLC to PDX Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 98% | 0.0% | 6m | 45 |
| SkyWest AirlinesOO | 90% | 0.6% | 58m | 2,247 |
| Delta Air LinesDL | 88% | 0.8% | 59m | 6,084 |
| Frontier AirlinesF9Worst | 80% | 3.0% | 56m | 100 |
Route Overview
88%
Overall On-Time
60m
Avg Delay
0.8%
Cancel Rate
8,549
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.