Des Moines to Seattle (DSM–SEA) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
DSM–SEA is served by 1 airline with nonstop service. Southwest Airlines leads the route. The flight covers 1,461 miles in approximately 3h 59m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| WN Southwest Airlines | 1 | – | 3h59 | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Seattle from Des Moines
| Metric | DSM→SEA | CID→SEA | OMA→SEA |
|---|---|---|---|
| Distance from DSM | – | 103 mi | 117 mi |
| Nonstop airlines | 1 | 1 | 5 |
| Weekly flights | 1 | 1 | 24 |
| Flight time | 3h 59m | 4h 2m | 3h 39m |
| Departure OTP | 100% | – | – |
Travel Essentials
DSM: CDT · SEA: PDT
When it's 6:00 PM in Des Moines, it's 4:00 PM in Seattle.
Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.
Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.
Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.
DSM–SEA Quick Facts
Frequently Asked Questions
Flights from DSM to SEA
Des Moines International Airport (DSM) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Southwest Airlines. With 1 weekly departures, this is a regularly served route.
DSM to SEA Flight Duration and Schedule
Nonstop flight time from DSM to SEA is about 3 hours 59 minutes gate to gate. The route covers a distance of 1,461 miles (2,351 km). There are approximately 1 weekly flights outbound and 1 return, totaling 2 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Denver, Minneapolis–Saint Paul and Chicago Midway. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Cedar Rapids (CID), Omaha (OMA) and Moline (MLI).