Route Reliability
Des Moines → Portland
DSM–PDX · 1,471 miles · Des Moines International Airport to Portland International Airport
87
Pretty Reliable
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 0%
- Cancelled
- 57
- Flights in the data
Data through May 2026.
Allegiant Air is the only airline in this data on this route, arriving on time 79% of the time across 57 flights. No comparison to make.
What the data says
Morning-you made the right choice.
DSM–PDX flights departing between 6–9 AM arrived on time 100% of the time, versus 63% between 3–6 PM.
Sunday scaries are real for this one.
DSM–PDX flights arrived on time 90% of the time on Tuesdays and just 71% on Sundays. That gap is worth planning around.
Flights on this route
The breakdown
- Mon—(0 flights)
- Tue90%(10 flights)
- Wed—(0 flights)
- Thu83%(23 flights)
- Fri—(0 flights)
- Sat—(0 flights)
- Sun71%(24 flights)
- 6–9 AM100%(17 flights)
- 12–3 PM85%(13 flights)
- 3–6 PM63%(27 flights)
64%
Aug
Jun 75% → Aug 64% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 75% | 12 |
| July 2025 | 79% | 14 |
| August 2025 | 64% | 11 |
Keep nerding
Based on 57 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.