Is DSM–SEA running on time right now?
Significant delay risk. The arrival side at SEA is the weaker end, route health score 50/100. The airports section above carries the live status and delay window at both ends.
live
Direct flights from Des Moines (DSM) to Seattle (SEA) run nonstop between the two airports. The nonstop covers 2,350 km, an estimated 3 hours 31 minutes in the air.
DSM
Des Moines
smooth · +7
SEA
Seattle
disrupted · +66
2,350 km · ~3h 31m est.
Under pressure · 0 airlines · nonstop
50 / 100
route health from live DSM and SEA delay boards
Flight time~3h 31mestimated from route distance
Airports right now
live boardsWeather lens
Current conditions put the pressure at DSM: 41% odds of a 15+ minute delay and around +11 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Des Moines to Seattle route actually runs
Pro Flight Search records official board updates for nonstop DSM to SEA flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Des Moines (DSM) to Seattle (SEA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/DSM-SEA
DSM to SEA questions
How long is the flight from DSM to SEA?
Great-circle distance is 2,350 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 196–231 min gate-to-gate on this route.
What does the route health score measure?
A blend of departure-side delay at DSM and arrival-side delay at SEA, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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