Cheap Flights from Seattle WA to Des Moines IA from $286

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Flight deals from Seattle to Des Moines

Looking for a cheap last-minute deal or the best round-trip flight from Seattle to Des Moines Airport? If you want to travel next month, round-trip fares start from $286. Find the lowest prices on one-way and round-trip tickets right here.

Des Moines.$286 per passenger.Departing Sat, Dec 5, returning Sun, Dec 13.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Sat, Dec 5, arriving in Des Moines.Inbound indirect flight with Frontier Airlines, departing from Des Moines on Sun, Dec 13, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $286, select.

Des Moines.$348 per passenger.Departing Sat, Feb 20, returning Sat, Feb 27.Round-trip flight with United.Outbound indirect flight with United, departing from Seattle / Tacoma International on Sat, Feb 20, arriving in Des Moines.Inbound indirect flight with United, departing from Des Moines on Sat, Feb 27, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $348, select.

Des Moines.$349 per passenger.Departing Tue, Feb 23, returning Tue, Mar 2.Round-trip flight with United.Outbound indirect flight with United, departing from Seattle / Tacoma International on Tue, Feb 23, arriving in Des Moines.Inbound indirect flight with United, departing from Des Moines on Tue, Mar 2, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $349, select.

Des Moines.$350 per passenger.Departing Mon, Jan 25, returning Mon, Feb 1.Round-trip flight with United.Outbound indirect flight with United, departing from Seattle / Tacoma International on Mon, Jan 25, arriving in Des Moines.Inbound indirect flight with United, departing from Des Moines on Mon, Feb 1, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $350, select.

Des Moines.$350 per passenger.Departing Mon, Jan 18, returning Mon, Jan 25.Round-trip flight with United.Outbound indirect flight with United, departing from Seattle / Tacoma International on Mon, Jan 18, arriving in Des Moines.Inbound indirect flight with United, departing from Des Moines on Mon, Jan 25, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $350, select.

Des Moines.$386 per passenger.Departing Tue, Mar 2, returning Tue, Mar 9.Round-trip flight with United.Outbound indirect flight with United, departing from Seattle / Tacoma International on Tue, Mar 2, arriving in Des Moines.Inbound indirect flight with United, departing from Des Moines on Tue, Mar 9, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $386, select.

Des Moines.$397 per passenger.Departing Sat, Apr 3, returning Sat, Apr 10.Round-trip flight with United.Outbound indirect flight with United, departing from Seattle / Tacoma International on Sat, Apr 3, arriving in Des Moines.Inbound indirect flight with United, departing from Des Moines on Sat, Apr 10, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $397, select.

Des Moines.$397 per passenger.Departing Tue, Mar 30, returning Tue, Apr 6.Round-trip flight with United.Outbound indirect flight with United, departing from Seattle / Tacoma International on Tue, Mar 30, arriving in Des Moines.Inbound indirect flight with United, departing from Des Moines on Tue, Apr 6, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $397, select.

Des Moines.$403 per passenger.Departing Thu, Dec 31, returning Thu, Jan 7.Round-trip flight with United.Outbound indirect flight with United, departing from Seattle / Tacoma International on Thu, Dec 31, arriving in Des Moines.Inbound indirect flight with United, departing from Des Moines on Thu, Jan 7, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $403, select.

Des Moines.$459 per passenger.Departing Wed, Jul 28, returning Mon, Aug 2.Round-trip flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Seattle / Tacoma International on Wed, Jul 28, arriving in Des Moines.Inbound indirect flight with Southwest Airlines, departing from Des Moines on Mon, Aug 2, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $459, select.

Des Moines.$479 per passenger.Departing Thu, Jun 24, returning Mon, Jun 28.Round-trip flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Seattle / Tacoma International on Thu, Jun 24, arriving in Des Moines.Inbound indirect flight with Southwest Airlines, departing from Des Moines on Mon, Jun 28, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $479, select.

Des Moines.$483 per passenger.Departing Tue, Nov 24, returning Tue, Dec 1.Round-trip flight with United.Outbound indirect flight with United, departing from Seattle / Tacoma International on Tue, Nov 24, arriving in Des Moines.Inbound indirect flight with United, departing from Des Moines on Tue, Dec 1, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $483, select.

Des Moines.$578 per passenger.Departing Wed, Nov 25, returning Mon, Nov 30.Round-trip flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Wed, Nov 25, arriving in Des Moines.Inbound indirect flight with Allegiant Air, departing from Des Moines on Mon, Nov 30, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $578, select.

Des Moines.$584 per passenger.Departing Wed, Jul 28, returning Mon, Aug 2.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Wed, Jul 28, arriving in Des Moines.Inbound direct flight with Alaska Airlines departing from Des Moines on Mon, Aug 2, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $584, select.

Find the cheapest month to fly from Seattle to Des Moines

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Des Moines flights are currently cheapest in December.

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Direct flights from Seattle to Des Moines

Seattle to Des Moines: Alternative routes

Compare routes from Seattle to Des Moines below. You may find an airport to fly into that's cheaper, faster, or easier than Des Moines.

Des Moines

8km from central Des Moines

ClosestCheapest

from $286

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Seattle to Des Moines: Flight information

The things to know before you go.

Cheapest flight found	$286
Cheapest month to fly	December
Average flight time	3 hrs, 42 mins
Most popular airline	Horizon Air
Average flights per week	14

Finding cheap flights from Seattle to Des Moines: Frequently asked questions

How much are round-trip flights from Seattle to Des Moines?

The best price we found for a round-trip flight from Seattle to Des Moines is $286. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Seattle to Des Moines?

3 hours and 42 minutes is the average flight time from Seattle to Des Moines.

Which airlines fly direct from Seattle to Des Moines?

Horizon Air and Alaska Airlines fly direct from Seattle to Des Moines.

How many flights are there a week from Seattle to Des Moines?

There are 14 flights per week flying from Seattle to Des Moines, as of November 2026.

When is the cheapest time to fly from Seattle to Des Moines?

The cheapest month to fly from Seattle to Des Moines is usually December.

Which upcoming date is cheapest to fly from Seattle to Des Moines Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Des Moines Airport on Saturday, December 5, 2026.

Can I get a direct flight from Seattle to Des Moines Airport?

Yes – the average flight time is 3 hours and 42 minutes.

How can I find the best flight deal to Des Moines?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Des Moines but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Des Moines?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Des Moines is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Seattle to Des Moines International Airport (DSM): What you need to know

The timezone in Des Moines is UTC-6, which is two hours ahead of Seattle. Des Moines International Airport is located in Des Moines.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport on time to catch your flight from Seattle to DSM.
If you're going away during a popular month like July, head to the airport even earlier. It's wise to arrive up to four hours before an international flight and two hours ahead of a domestic departure. Security lines will be longer during peak periods like Christmas and New Year.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

Located around 23 kilometers from central Seattle, SEA can be reached in about 25 minutes by car (depending on traffic). The journey on public transport is roughly 35 minutes.
Planning to catch an early flight from Seattle to Des Moines International Airport? Avoid the hassle of rushing to the terminal (and get some extra shut-eye) by picking one of these stays near Seattle-Tacoma International Airport:
Seattle-Tacoma International Airport has an excellent on-time record, so you're unlikely to face delays. Departures from SEA arrive at their destination as scheduled 80% of the time.

Seattle Paine Field International Airport (PAE)

Using public transport, you can travel from central Seattle to PAE in around 1 hour 30 minutes. The airport is roughly 40 kilometers away, and getting there by car will take approximately 40 minutes.
Catching the earliest flight? Think about staying at one of these hotels near Seattle Paine Field International Airport the day before your Seattle to DSM flight:
The majority of flights that depart Seattle Paine Field International Airport reach their destination right on cue. It achieves a consistent on-time performance rate of 80%.

About Des Moines International Airport (DSM)

The last thing you want is a long journey to your hotel if you're getting in late on a flight from Seattle to Des Moines International Airport. Check in to one of these accommodation options near DSM instead:
DSM is located at 5800 Fleur Drive, Suite 201.

Getting from Des Moines International Airport (DSM) to central Des Moines

Central Des Moines is around 11 kilometers from Des Moines International Airport and takes about 15 minutes to reach by car. Explore your options for getting into the city, whether that's with a car rental, cab or ride-share.
It'll take around 30 minutes if you're traveling by public transport.

How to find the cheapest flights from Seattle to Des Moines International Airport (DSM)

$191 is the best price for a one-way ticket from Seattle to Des Moines International Airport. A return flight starts from $286. These fares can change depending on availability.
To find cheap flights from Seattle to DSM, book ahead. Airlines typically offer the most competitive fares when flights are first released.
If you have some flexibility with your travel plans, use the 'Whole month' tool. It'll show you the cheapest price across the month when searching for your Seattle to Des Moines International Airport ticket.
Never miss a deal on plane tickets from Seattle to DSM by setting up a Price Alert. We'll send you an email or notification on the app when a new discounted fare appears.
Filters make it easier to save some cash on your flight from Seattle to Des Moines International Airport. Choose the departure times, carriers and stops that check all your boxes. Then sort the results by 'Cheapest' to find the most affordable option fast.

The best time to fly from Seattle to Des Moines International Airport (DSM)

December is the quietest month for flights from Seattle to Des Moines International Airport (DSM), while July is the busiest. Work out the best time to visit Des Moines based on whether you prefer a bustling atmosphere or a more laid-back vibe.
The warmest month in Des Moines is July, with temperatures ranging between 15ºC (59ºF) and 31ºC (88ºF). Book your Seattle to DSM plane ticket then if you enjoy this type of weather.
Search for cheap tickets from Seattle to Des Moines International Airport in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -13ºC (9ºF) and 2ºC (36ºF).

More about Des Moines

Start your Des Moines trip off on the right foot by choosing the perfect place to stay. As soon as you've booked your flight from Seattle to Des Moines International Airport, explore our selection of hotels including:
Your trip to Des Moines wouldn't be complete without a bit of sightseeing. Major attractions you can't miss include Greater Des Moines Botanical Garden, Science Center of Iowa & Blank IMAX Dome Theater and State Historical Museum.

Explore more of the United States

Kansas City is just one of the many places in the United States waiting to be discovered once you've seen the sights of Des Moines. Around 290 kilometers away to the south, popular attractions include National WWI Museum and Memorial, LEGOLAND Discovery Center and Union Station - 2017.
Around 193 kilometers west of Des Moines, Omaha is another favorite stop in the United States. Experience this destination's highlights firsthand at Kiewit Luminarium, OUR BODY: The Universe Within and Orpheum Theater.