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Cheap flights from Des Moines to Seattle from $119

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Des Moines to Seattle departing on 8/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Des Moines to Seattle

Cheap round-trip flights

Frontier Logo
3:30 pm - 11:02 pmDSM-SEA
9h 32m1 stop
Frontier Logo
6:00 am - 7:59 pmSEA-DSM
11h 59m1 stop
$228Frontier
Find Deal
Wed, Oct 22 - Fri, Oct 31
Frontier Logo
2:25 pm - 12:30 amDSM-SEA
12h 05m1 stop
Frontier Logo
7:00 am - 1:40 pmSEA-DSM
28h 40m1 stop
$235Frontier
Find Deal
Fri, Sep 26 - Sat, Oct 4
American Airlines Logo
4:09 pm - 9:23 pmDSM-SEA
7h 14m1 stop
American Airlines Logo
10:11 am - 8:21 pmSEA-DSM
8h 10m1 stop
$294American Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
American Airlines Logo
4:09 pm - 9:23 pmDSM-SEA
7h 14m1 stop
American Airlines Logo
10:11 am - 8:21 pmSEA-DSM
8h 10m1 stop
$295American Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
Delta Logo
7:00 am - 12:24 pmDSM-SEA
7h 24m1 stop
Delta Logo
6:00 am - 1:59 pmSEA-DSM
5h 59m1 stop
$297Delta
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Tue, Sep 30 - Mon, Oct 6
Southwest Logo
12:15 pm - 7:55 pmDSM-SEA
9h 40m1 stop
Southwest Logo
9:55 am - 9:25 pmSEA-DSM
9h 30m2 stops
$302Southwest
Find Deal
Wed, Sep 3 - Wed, Sep 10
Southwest Logo
6:30 am - 1:20 pmDSM-SEA
8h 50m2 stops
Southwest Logo
9:55 am - 9:25 pmSEA-DSM
9h 30m2 stops
$307Southwest
Find Deal
Wed, Sep 3 - Wed, Sep 10
Delta Logo
6:05 am - 2:35 pmDSM-SEA
10h 30m1 stop
Delta Logo
11:55 pm - 10:21 amSEA-DSM
8h 26m1 stop
$312Delta
Find Deal
Fri, Oct 24 - Wed, Oct 29
United Airlines Logo
3:25 pm - 10:30 pmDSM-SEA
9h 05m1 stop
United Airlines Logo
1:00 pm - 11:56 pmSEA-DSM
8h 56m2 stops
$382United Airlines
Find Deal
Mon, Sep 29 - Tue, Oct 7
United Airlines Logo
8:00 am - 10:59 pmDSM-SEA
16h 59m3 stops
United Airlines Logo
7:00 am - 5:14 pmSEA-DSM
8h 14m1 stop
$383United Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20

American Airlines flights from Des Moines to Seattle

Our best American Airlines deals on Des Moines to Seattle flight tickets
American Airlines
Sep 13
DSM4:09 pmDes Moines
7h 14m
1 stop
SEA9:23 pmSeattle/Tacoma Intl
Sep 20
SEA10:11 amSeattle/Tacoma Intl
8h 10m
1 stop
DSM8:21 pmDes Moines
$294
Find similar
American Airlines
Sep 13
DSM4:09 pmDes Moines
7h 14m
1 stop
SEA9:23 pmSeattle/Tacoma Intl
Sep 20
SEA10:11 amSeattle/Tacoma Intl
8h 10m
1 stop
DSM8:21 pmDes Moines
$295
Find similar
American Airlines
Sep 3
DSM4:09 pmDes Moines
7h 14m
1 stop
SEA9:23 pmSeattle/Tacoma Intl
Sep 10
SEA1:50 pmSeattle/Tacoma Intl
7h 23m
1 stop
DSM11:13 pmDes Moines
$296
Find similar

Southwest flights from Des Moines to Seattle

Our best Southwest deals on Des Moines to Seattle flight tickets
Southwest
Sep 3
DSM12:15 pmDes Moines
9h 40m
1 stop
SEA7:55 pmSeattle/Tacoma Intl
Sep 10
SEA9:55 amSeattle/Tacoma Intl
9h 30m
2 stops
DSM9:25 pmDes Moines
$302
Find similar
Southwest
Sep 3
DSM6:30 amDes Moines
8h 50m
2 stops
SEA1:20 pmSeattle/Tacoma Intl
Sep 10
SEA9:55 amSeattle/Tacoma Intl
9h 30m
2 stops
DSM9:25 pmDes Moines
$307
Find similar
Southwest
Aug 26
DSM3:25 pmDes Moines
10h 40m
2 stops
SEA12:05 amSeattle/Tacoma Intl
Aug 28
SEA5:00 amSeattle/Tacoma Intl
6h 00m
1 stop
DSM1:00 pmDes Moines
$317
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Des Moines to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 2, 2025.
Use the filters below to find and compare flights from Des Moines to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 10/22

3:30 pm-11:02 pm

1 stop9h 32m

Seattle/Tacoma Intl

Fri 10/31

6:00 am-7:59 pm

1 stop11h 59m

$228

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 9/26

2:25 pm-12:30 am

1 stop12h 05m

Seattle/Tacoma Intl

Sat 10/4

7:00 am-1:40 pm

1 stop28h 40m

$235

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Sat 9/13

4:09 pm-9:23 pm

1 stop7h 14m

Seattle/Tacoma Intl

Sat 9/20

10:11 am-8:21 pm

1 stop8h 10m

$294

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Sat 9/13

4:09 pm-9:23 pm

1 stop7h 14m

Seattle/Tacoma Intl

Sat 9/20

10:11 am-8:21 pm

1 stop8h 10m

$295

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Tue 9/30

7:00 am-12:24 pm

1 stop7h 24m

Seattle/Tacoma Intl

Mon 10/6

6:00 am-1:59 pm

1 stop5h 59m

$297

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 9/3

12:15 pm-7:55 pm

1 stop9h 40m

Seattle/Tacoma Intl

Wed 9/10

9:55 am-9:25 pm

2 stops9h 30m

$302

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 9/3

6:30 am-1:20 pm

2 stops8h 50m

Seattle/Tacoma Intl

Wed 9/10

9:55 am-9:25 pm

2 stops9h 30m

$307

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 10/24

6:05 am-2:35 pm

1 stop10h 30m

Seattle/Tacoma Intl

Wed 10/29

11:55 pm-10:21 am

1 stop8h 26m

$312

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Mon 9/29

3:25 pm-10:30 pm

1 stop9h 05m

Seattle/Tacoma Intl

Tue 10/7

1:00 pm-11:56 pm

2 stops8h 56m

$382

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Sat 9/13

8:00 am-10:59 pm

3 stops16h 59m

Seattle/Tacoma Intl

Sat 9/20

7:00 am-5:14 pm

1 stop8h 14m

$383

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Des Moines to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Des Moines and Seattle?

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Des Moines to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $379. If you don’t want to visit Seattle in January, then you should wait until September to fly from Des Moines, when ticket prices are also cheap, with an average price of $392.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Des Moines is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $406. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Des Moines because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $504.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Des Moines in the evening is the least expensive time of day to depart. momondo users have found prices as low as $394 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $476. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Des Moines when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $455 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Des Moines for as low as $370 on momondo.

How have Des Moines to Seattle flight prices changed over time?

As of August 2025, prices for Des Moines to Seattle flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from Des Moines to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Des Moines to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Des Moines to Seattle (DSM to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Des Moines to Seattle

Best Price Found

$119

Fastest flight time

6h 05m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Des Moines in the past 72 hours is $119. The best round-trip flight deal from Des Moines to Seattle found on momondo in the last 72 hours is $228.
The fastest flight from Des Moines to Seattle takes 6h 05m
There are no direct flights from Des Moines to Seattle. Popular non-direct route for this connection is Des Moines Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Des Moines to Seattle/Tacoma Intl by plane?

    There are 1462.1 mi between Des Moines and Seattle/Tacoma Intl. Flights usually cover this in 6h 05m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Des Moines Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Des Moines Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Des Moines Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Des Moines Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Des Moines Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Des Moines to Seattle?

Best airlines flying from Des Moines to Seattle

Compare and see reviews for airlines that fly from Des Moines to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $120Free CancellationRating
5.8
3,241 reviews
Search Frontier flights
DeltaPriceFrom $252Free CancellationRating
8.0
7,983 reviews
Search Delta flights
American AirlinesPriceFrom $306Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $330Free CancellationRating
7.4
8,904 reviews
Search United Airlines flights
SouthwestPriceFrom $334Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $487Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Renton
Kent
Federal Way
Puyallup
Lynnwood
Marysville
Tukwila
Kirkland
Lakewood
Fife
Centralia
Cle Elum
Shoreline
Westport
Redmond

Why use momondo?

Why should I use momondo to find a flight deal from Des Moines to Seattle?

Finding the right flight to Seattle from Des Moines is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Des Moines to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Des Moines on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Des Moines to Seattle?

Once you have performed a search for Des Moines to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Des Moines to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Des Moines. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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