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Cheap flights from Des Moines to Seattle from $148

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 2/14. 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.
Frontier Logo
7:59 pm - 12:01 pm
DSM
-
SEA
18h 02m1 stop
Frontier Logo
12:24 pm - 7:16 pm
SEA
-
DSM
28h 52m1 stop
$169Frontier
Fri, Feb 27 - Fri, Mar 6
Frontier Logo
7:59 pm - 12:01 pm
DSM
-
SEA
18h 02m1 stop
Frontier Logo
12:24 pm - 7:16 pm
SEA
-
DSM
28h 52m1 stop
$185Frontier
Fri, Feb 27 - Sun, Mar 8
Multiple Airlines Logo
7:59 pm - 12:01 pm
DSM
-
SEA
18h 02m1 stop
Multiple Airlines Logo
10:08 pm - 4:02 pm
SEA
-
DSM
39h 54m2 stops
$195Multiple Airlines
Fri, Feb 27 - Mon, Mar 9
Frontier Logo
7:59 pm - 12:01 pm
DSM
-
SEA
18h 02m1 stop
Frontier Logo
1:16 pm - 7:16 pm
SEA
-
DSM
28h 00m1 stop
$197Frontier
Fri, Feb 27 - Thu, Mar 5
Frontier Logo
7:27 pm - 8:11 pm
DSM
-
SEA
26h 44m2 stops
Frontier Logo
12:24 pm - 7:16 pm
SEA
-
DSM
28h 52m1 stop
$201Frontier
Thu, Feb 26 - Fri, Mar 6
Frontier Logo
7:27 pm - 8:11 pm
DSM
-
SEA
26h 44m2 stops
Frontier Logo
12:24 pm - 7:16 pm
SEA
-
DSM
28h 52m1 stop
$218Frontier
Thu, Feb 26 - Sun, Mar 8
Frontier Logo
7:59 pm - 12:01 pm
DSM
-
SEA
18h 02m1 stop
Frontier Logo
6:24 pm - 7:16 pm
SEA
-
DSM
22h 52m2 stops
$222Frontier
Fri, Feb 27 - Tue, Mar 10
Multiple Airlines Logo
7:59 pm - 12:01 pm
DSM
-
SEA
18h 02m1 stop
Multiple Airlines Logo
9:08 pm - 2:01 pm
SEA
-
DSM
38h 53m2 stops
$226Multiple Airlines
Fri, Feb 27 - Sat, Mar 7
Multiple Airlines Logo
7:59 pm - 12:01 pm
DSM
-
SEA
18h 02m1 stop
Multiple Airlines Logo
12:16 pm - 3:01 pm
SEA
-
DSM
24h 45m2 stops
$228Multiple Airlines
Fri, Feb 27 - Thu, Mar 5
Frontier Logo
7:27 pm - 8:11 pm
DSM
-
SEA
26h 44m2 stops
Frontier Logo
1:16 pm - 7:16 pm
SEA
-
DSM
28h 00m1 stop
$229Frontier
Thu, Feb 26 - Thu, Mar 5

Frontier flights from Des Moines to Seattle

Our best Frontier deals on Des Moines to Seattle flight tickets
Frontier
Feb 27
DSM7:59 pmDes Moines
18h 02m
1 stop
SEA12:01 pmSeattle/Tacoma Intl
Mar 6
SEA12:24 pmSeattle/Tacoma Intl
28h 52m
1 stop
DSM7:16 pmDes Moines
$169
Find similar
Frontier
Feb 27
DSM7:59 pmDes Moines
18h 02m
1 stop
SEA12:01 pmSeattle/Tacoma Intl
Mar 8
SEA12:24 pmSeattle/Tacoma Intl
28h 52m
1 stop
DSM7:16 pmDes Moines
$185
Find similar
Frontier
Feb 27
DSM7:59 pmDes Moines
18h 02m
1 stop
SEA12:01 pmSeattle/Tacoma Intl
Mar 5
SEA1:16 pmSeattle/Tacoma Intl
28h 00m
1 stop
DSM7:16 pmDes Moines
$197
Find similar

American Airlines flights from Des Moines to Seattle

Our best American Airlines deals on Des Moines to Seattle flight tickets
American Airlines
Jan 6
DSM2:34 pmDes Moines
8h 01m
1 stop
SEA8:35 pmSeattle/Tacoma Intl
Jan 14
SEA8:04 amSeattle/Tacoma Intl
11h 00m
1 stop
DSM9:04 pmDes Moines
$441
Find similar
American Airlines
Jan 8
DSM5:21 amDes Moines
9h 56m
1 stop
SEA1:17 pmSeattle/Tacoma Intl
Jan 12
SEA8:04 amSeattle/Tacoma Intl
11h 00m
1 stop
DSM9:04 pmDes Moines
$526
Find similar
American Airlines
Jan 1
DSM11:32 amDes Moines
9h 42m
1 stop
SEA7:14 pmSeattle/Tacoma Intl
Jan 5
SEA9:57 amSeattle/Tacoma Intl
12h 32m
1 stop
DSM12:29 amDes Moines
$577
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 December 26, 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

Fri 2/27

7:59 pm-12:01 pm

1 stop18h 02m

Seattle/Tacoma Intl

Fri 3/6

12:24 pm-7:16 pm

1 stop28h 52m

$169

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 2/27

7:59 pm-12:01 pm

1 stop18h 02m

Seattle/Tacoma Intl

Sun 3/8

12:24 pm-7:16 pm

1 stop28h 52m

$185

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 2/27

7:59 pm-12:01 pm

1 stop18h 02m

Seattle/Tacoma Intl

Mon 3/9

10:08 pm-4:02 pm

2 stops39h 54m

$195

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 2/27

7:59 pm-12:01 pm

1 stop18h 02m

Seattle/Tacoma Intl

Thu 3/5

1:16 pm-7:16 pm

1 stop28h 00m

$197

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 2/26

7:27 pm-8:11 pm

2 stops26h 44m

Seattle/Tacoma Intl

Fri 3/6

12:24 pm-7:16 pm

1 stop28h 52m

$201

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 2/26

7:27 pm-8:11 pm

2 stops26h 44m

Seattle/Tacoma Intl

Sun 3/8

12:24 pm-7:16 pm

1 stop28h 52m

$218

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 2/27

7:59 pm-12:01 pm

1 stop18h 02m

Seattle/Tacoma Intl

Tue 3/10

6:24 pm-7:16 pm

2 stops22h 52m

$222

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 2/27

7:59 pm-12:01 pm

1 stop18h 02m

Seattle/Tacoma Intl

Sat 3/7

9:08 pm-2:01 pm

2 stops38h 53m

$226

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 2/27

7:59 pm-12:01 pm

1 stop18h 02m

Seattle/Tacoma Intl

Thu 3/5

12:16 pm-3:01 pm

2 stops24h 45m

$228

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 2/26

7:27 pm-8:11 pm

2 stops26h 44m

Seattle/Tacoma Intl

Thu 3/5

1:16 pm-7:16 pm

1 stop28h 00m

$229

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 $336. 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 $385.

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 $452 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 $375 on momondo.

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

As of December 2025, prices for Des Moines to Seattle flights are approximately 45% 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

6h 16m

Direct flights

None
The fastest flight from Des Moines to Seattle takes 6h 16m
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 6h 16m, 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
3,070 reviews
Search Frontier flights
DeltaPriceFrom $252Free CancellationRating
7.9
8,012 reviews
Search Delta flights
American AirlinesPriceFrom $298Free CancellationRating
7.2
11,061 reviews
Search American Airlines flights
SouthwestPriceFrom $336Free CancellationRating
8.0
4,258 reviews
Search Southwest flights
United AirlinesPriceFrom $347Free CancellationRating
7.4
9,115 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $487Free CancellationRating
8.0
11,534 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
Puyallup
Redmond
Tukwila
Federal Way
Cle Elum
Lakewood
Fife
Centralia
Westport
Kirkland
Shoreline

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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