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Cheap flights from Des Moines to Seattle from $122

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 3/1. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:36 pm - 11:19 am
DSM
-
SEA
22h 43m
2 stops
Multiple Airlines Logo
12:24 pm - 7:16 pm
SEA
-
DSM
28h 52m
1 stop
$251Multiple Airlines
Sun, Mar 22 - Thu, Mar 26
Frontier Logo
7:27 pm - 11:19 am
DSM
-
SEA
17h 52m
1 stop
Frontier Logo
12:24 pm - 7:16 pm
SEA
-
DSM
28h 52m
1 stop
$257Frontier
Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
7:27 pm - 11:19 am
DSM
-
SEA
17h 52m
1 stop
Multiple Airlines Logo
9:35 pm - 10:34 pm
SEA
-
DSM
22h 59m
1 stop
$306Multiple Airlines
Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
2:20 pm - 9:27 am
DSM
-
SEA
21h 07m
1 stop
Multiple Airlines Logo
6:57 pm - 8:13 pm
SEA
-
DSM
47h 16m
2 stops
$316Multiple Airlines
Mon, Apr 27 - Fri, May 1
Multiple Airlines Logo
7:27 pm - 11:19 am
DSM
-
SEA
17h 52m
1 stop
Multiple Airlines Logo
10:08 pm - 10:34 pm
SEA
-
DSM
46h 26m
2 stops
$324Multiple Airlines
Thu, Mar 5 - Wed, Mar 11
Multiple Airlines Logo
7:27 pm - 5:09 pm
DSM
-
SEA
23h 42m
2 stops
Multiple Airlines Logo
9:35 pm - 10:34 pm
SEA
-
DSM
22h 59m
1 stop
$328Multiple Airlines
Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
7:00 am - 11:19 am
DSM
-
SEA
30h 19m
2 stops
Multiple Airlines Logo
12:24 pm - 7:16 pm
SEA
-
DSM
28h 52m
1 stop
$334Multiple Airlines
Sun, Mar 8 - Sun, Mar 15
Frontier Logo
7:27 pm - 11:19 am
DSM
-
SEA
17h 52m
1 stop
Frontier Logo
12:24 pm - 7:16 pm
SEA
-
DSM
28h 52m
1 stop
$337Frontier
Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
7:27 pm - 11:19 am
DSM
-
SEA
17h 52m
1 stop
Multiple Airlines Logo
9:35 pm - 10:34 pm
SEA
-
DSM
22h 59m
1 stop
$341Multiple Airlines
Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
7:27 pm - 11:19 am
DSM
-
SEA
17h 52m
1 stop
Multiple Airlines Logo
9:35 pm - 10:34 pm
SEA
-
DSM
22h 59m
1 stop
$342Multiple Airlines
Thu, Mar 5 - Sun, Mar 8

Frontier flights from Des Moines to Seattle

Our best Frontier deals on Des Moines to Seattle flight tickets
Frontier
Mar 5
DSM7:27 pmDes Moines
17h 52m
1 stop
SEA11:19 amSeattle/Tacoma Intl
Mar 8
SEA12:24 pmSeattle/Tacoma Intl
28h 52m
1 stop
DSM7:16 pmDes Moines
$257
Frontier
Mar 5
DSM7:27 pmDes Moines
17h 52m
1 stop
SEA11:19 amSeattle/Tacoma Intl
Mar 8
SEA12:24 pmSeattle/Tacoma Intl
28h 52m
1 stop
DSM7:16 pmDes Moines
$337
Frontier
Feb 26
DSM7:27 pmDes Moines
17h 28m
1 stop
SEA10:55 amSeattle/Tacoma Intl
Mar 12
SEA12:24 pmSeattle/Tacoma Intl
28h 52m
1 stop
DSM7:16 pmDes Moines
$343

Southwest flights from Des Moines to Seattle

Our best Southwest deals on Des Moines to Seattle flight tickets
Southwest
Mar 17
DSM6:35 pmDes Moines
5h 55m
1 stop
SEA10:30 pmSeattle/Tacoma Intl
Mar 24
SEA7:00 amSeattle/Tacoma Intl
8h 45m
1 stop
DSM5:45 pmDes Moines
$351
Southwest
Mar 31
DSM6:35 pmDes Moines
5h 55m
1 stop
SEA10:30 pmSeattle/Tacoma Intl
Apr 7
SEA9:20 amSeattle/Tacoma Intl
9h 55m
2 stops
DSM9:15 pmDes Moines
$356
Southwest
Mar 31
DSM3:40 pmDes Moines
10h 40m
2 stops
SEA12:20 amSeattle/Tacoma Intl
Apr 7
SEA9:20 amSeattle/Tacoma Intl
9h 55m
2 stops
DSM9:15 pmDes Moines
$361

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 February 15, 2026.
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

Sun 3/22

2:36 pm-11:19 am

2 stops22h 43m

Seattle/Tacoma Intl

Thu 3/26

12:24 pm-7:16 pm

1 stop28h 52m

$251

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 3/5

7:27 pm-11:19 am

1 stop17h 52m

Seattle/Tacoma Intl

Sun 3/8

12:24 pm-7:16 pm

1 stop28h 52m

$257

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 3/5

7:27 pm-11:19 am

1 stop17h 52m

Seattle/Tacoma Intl

Sun 3/8

9:35 pm-10:34 pm

1 stop22h 59m

$306

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Mon 4/27

2:20 pm-9:27 am

1 stop21h 07m

Seattle/Tacoma Intl

Fri 5/1

6:57 pm-8:13 pm

2 stops47h 16m

$316

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 3/5

7:27 pm-11:19 am

1 stop17h 52m

Seattle/Tacoma Intl

Wed 3/11

10:08 pm-10:34 pm

2 stops46h 26m

$324

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 3/5

7:27 pm-5:09 pm

2 stops23h 42m

Seattle/Tacoma Intl

Sun 3/8

9:35 pm-10:34 pm

1 stop22h 59m

$328

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Sun 3/8

7:00 am-11:19 am

2 stops30h 19m

Seattle/Tacoma Intl

Sun 3/15

12:24 pm-7:16 pm

1 stop28h 52m

$334

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 3/5

7:27 pm-11:19 am

1 stop17h 52m

Seattle/Tacoma Intl

Sun 3/8

12:24 pm-7:16 pm

1 stop28h 52m

$337

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 3/5

7:27 pm-11:19 am

1 stop17h 52m

Seattle/Tacoma Intl

Sun 3/8

9:35 pm-10:34 pm

1 stop22h 59m

$341

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 3/5

7:27 pm-11:19 am

1 stop17h 52m

Seattle/Tacoma Intl

Sun 3/8

9:35 pm-10:34 pm

1 stop22h 59m

$342

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

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 cheapest month to fly to Seattle?

In general, October 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 $340. If you don’t want to visit Seattle in October, then you should wait until April to fly from Des Moines, when ticket prices are also cheap, with an average price of $388.

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 $451 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 $386 on momondo.

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

As of February 2026, prices for Des Moines to Seattle flights are approximately 18% more expensive 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

Fastest flight time

5h 58m

Direct flights

None
The fastest flight from Des Moines to Seattle takes 5h 58m
There are no direct flights from Des Moines to Seattle. There are no popular flight routes from Des Moines to Seattle.
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 5h 58m, 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 $105Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
DeltaPriceFrom $168Free CancellationRating
7.9
8,205 reviews
Search Delta flights
American AirlinesPriceFrom $298Free CancellationRating
7.2
11,296 reviews
Search American Airlines flights
United AirlinesPriceFrom $312Free CancellationRating
7.4
9,295 reviews
Search United Airlines flights
SouthwestPriceFrom $336Free CancellationRating
8.0
4,286 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $487Free CancellationRating
8.0
11,885 reviews
Search Alaska Airlines flights

Traveling to a place near Seattle?

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

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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