DSM to PDX flight delays & on-time performance
Nonstop flights from Des Moines International Airport to Portland International Airport · 1,471 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DSM or PDX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Des Moines (DSM) to Portland (PDX) arrived on time 70% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0% were cancelled, and 9% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 7am did best (100% on time); around 3pm did worst (50%).
- Thursday was the most reliable day to fly (74% on time) and Sunday the least (65%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (33%).
Which airline is most on time from DSM to PDX?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Allegiant Air | 70% | 0.0% | 18 min | 8.9% | 56 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am100%16 flights
- 3pm50%26 flights
Best day of the week
On-time arrival rate by day of departure.
- Tuesday70%0.0% cancelled
- Thursday74%0.0% cancelled
- Sunday65%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)33%
- Late-arriving aircraft27%
- Air traffic control & airport congestion21%
- Extreme weather19%
- Security1%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
DSM to PDX: common questions
- How often are DSM to PDX flights on time?
- 70% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Des Moines to Portland cancelled?
- 0.0% of scheduled flights were cancelled (0 of 56).
- How long are typical delays?
- Across all flights the average arrival delay was 18 min (early arrivals count as zero). Flights that were late arrived 55 min behind schedule on average, and 8.9% of flights were an hour or more late.
- How long is taxi time at DSM?
- Flights on this route spent 11 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PDX to DSM — 68% on time
More flights from Des Moines
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DSM → PDX, nonstop flights by US airlines that report to the DOT. How we calculate this.