Allegiant Air is the most reliable airline on the DSM to PDX route with a 66% on-time rate. Based on 62 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: DSM to PDX
Des Moines to Portland — airline reliability comparison
On-Time Rate by Airline
Allegiant Air66%
DSM to PDX Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Allegiant AirG4Best | 66% | 0.0% | 57m | 62 |
Route Overview
66%
Overall On-Time
58m
Avg Delay
0%
Cancel Rate
62
Total Flights
Flying out of DSM? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.