Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Des Moines to Seattle from $172

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 1/8. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Des Moines to Seattle

Cheap round-trip flights

Frontier Logo
8:15 pm - 10:56 amDSM-SEA
16h 41m1 stop
Frontier Logo
7:05 pm - 7:08 pmSEA-DSM
22h 03m1 stop
$177Frontier
Find Deal
Fri, Dec 5 - Sun, Dec 7
Frontier Logo
2:32 pm - 12:13 pmDSM-SEA
23h 41m1 stop
Frontier Logo
2:22 pm - 1:47 pmSEA-DSM
21h 25m1 stop
$207Frontier
Find Deal
Fri, Oct 31 - Sun, Nov 2
American Airlines Logo
7:50 am - 2:05 pmDSM-SEA
8h 15m1 stop
American Airlines Logo
12:59 am - 10:47 amSEA-DSM
7h 48m1 stop
$239American Airlines
Find Deal
Tue, Dec 16 - Mon, Dec 29
Delta Logo
11:06 am - 4:54 pmDSM-SEA
7h 48m1 stop
Delta Logo
6:00 am - 1:59 pmSEA-DSM
5h 59m1 stop
$300Delta
Find Deal
Fri, Oct 31 - Mon, Nov 3
Delta Logo
2:15 pm - 11:58 pmDSM-SEA
11h 43m1 stop
Delta Logo
12:59 am - 11:23 amSEA-DSM
8h 24m1 stop
$317Delta
Find Deal
Tue, Dec 16 - Mon, Dec 29
United Airlines Logo
9:00 am - 6:27 pmDSM-SEA
11h 27m2 stops
United Airlines Logo
11:59 pm - 10:50 amSEA-DSM
8h 51m1 stop
$324United Airlines
Find Deal
Tue, Dec 16 - Tue, Dec 30
American Airlines Logo
5:04 am - 10:54 amDSM-SEA
7h 50m1 stop
American Airlines Logo
12:59 am - 10:40 amSEA-DSM
7h 41m1 stop
$344American Airlines
Find Deal
Thu, Oct 30 - Wed, Nov 5
United Airlines Logo
5:15 pm - 12:59 amDSM-SEA
9h 44m2 stops
United Airlines Logo
5:05 am - 12:38 pmSEA-DSM
5h 33m1 stop
$347United Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 17
Southwest Logo
1:20 pm - 8:10 pmDSM-SEA
8h 50m2 stops
Southwest Logo
5:15 am - 12:40 pmSEA-DSM
5h 25m1 stop
$348Southwest
Find Deal
Sat, Jan 10 - Sat, Jan 17
Southwest Logo
12:05 pm - 8:40 pmDSM-SEA
10h 35m2 stops
Southwest Logo
8:10 am - 7:55 pmSEA-DSM
9h 45m2 stops
$374Southwest
Find Deal
Wed, Dec 10 - Wed, Dec 17

Delta flights from Des Moines to Seattle

Our best Delta deals on Des Moines to Seattle flight tickets
Delta
Oct 31
DSM11:06 amDes Moines
7h 48m
1 stop
SEA4:54 pmSeattle/Tacoma Intl
Nov 3
SEA6:00 amSeattle/Tacoma Intl
5h 59m
1 stop
DSM1:59 pmDes Moines
$300
Find similar
Delta
Dec 16
DSM2:15 pmDes Moines
11h 43m
1 stop
SEA11:58 pmSeattle/Tacoma Intl
Dec 29
SEA12:59 amSeattle/Tacoma Intl
8h 24m
1 stop
DSM11:23 amDes Moines
$317
Find similar
Delta
Oct 22
DSM5:32 pmDes Moines
8h 25m
1 stop
SEA11:57 pmSeattle/Tacoma Intl
Oct 30
SEA1:35 pmSeattle/Tacoma Intl
5h 28m
1 stop
DSM9:03 pmDes Moines
$330
Find similar

Frontier flights from Des Moines to Seattle

Our best Frontier deals on Des Moines to Seattle flight tickets
Frontier
Dec 5
DSM8:15 pmDes Moines
16h 41m
1 stop
SEA10:56 amSeattle/Tacoma Intl
Dec 7
SEA7:05 pmSeattle/Tacoma Intl
22h 03m
1 stop
DSM7:08 pmDes Moines
$177
Find similar
Frontier
Oct 31
DSM2:32 pmDes Moines
23h 41m
1 stop
SEA12:13 pmSeattle/Tacoma Intl
Nov 2
SEA2:22 pmSeattle/Tacoma Intl
21h 25m
1 stop
DSM1:47 pmDes Moines
$207
Find similar
Frontier
Oct 30
DSM2:32 pmDes Moines
23h 41m
1 stop
SEA12:13 pmSeattle/Tacoma Intl
Nov 2
SEA2:22 pmSeattle/Tacoma Intl
21h 25m
1 stop
DSM1:47 pmDes Moines
$208
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 September 15, 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 12/5

8:15 pm-10:56 am

1 stop16h 41m

Seattle/Tacoma Intl

Sun 12/7

7:05 pm-7:08 pm

1 stop22h 03m

$177

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 10/31

2:32 pm-12:13 pm

1 stop23h 41m

Seattle/Tacoma Intl

Sun 11/2

2:22 pm-1:47 pm

1 stop21h 25m

$207

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Tue 12/16

7:50 am-2:05 pm

1 stop8h 15m

Seattle/Tacoma Intl

Mon 12/29

12:59 am-10:47 am

1 stop7h 48m

$239

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 10/31

11:06 am-4:54 pm

1 stop7h 48m

Seattle/Tacoma Intl

Mon 11/3

6:00 am-1:59 pm

1 stop5h 59m

$300

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Tue 12/16

2:15 pm-11:58 pm

1 stop11h 43m

Seattle/Tacoma Intl

Mon 12/29

12:59 am-11:23 am

1 stop8h 24m

$317

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Tue 12/16

9:00 am-6:27 pm

2 stops11h 27m

Seattle/Tacoma Intl

Tue 12/30

11:59 pm-10:50 am

1 stop8h 51m

$324

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 10/30

5:04 am-10:54 am

1 stop7h 50m

Seattle/Tacoma Intl

Wed 11/5

12:59 am-10:40 am

1 stop7h 41m

$344

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 12/10

5:15 pm-12:59 am

2 stops9h 44m

Seattle/Tacoma Intl

Wed 12/17

5:05 am-12:38 pm

1 stop5h 33m

$347

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Sat 1/10

1:20 pm-8:10 pm

2 stops8h 50m

Seattle/Tacoma Intl

Sat 1/17

5:15 am-12:40 pm

1 stop5h 25m

$348

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 12/10

12:05 pm-8:40 pm

2 stops10h 35m

Seattle/Tacoma Intl

Wed 12/17

8:10 am-7:55 pm

2 stops9h 45m

$374

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $370. If you don’t want to visit Seattle in October, then you should wait until January to fly from Des Moines, when ticket prices are also cheap, with an average price of $379.

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 $456 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 $342 on momondo.

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

As of September 2025, prices for Des Moines to Seattle flights are approximately 5% 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

Direct flights

None
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 7h 47m, 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 $131Free CancellationRating
5.8
3,172 reviews
Search Frontier flights
DeltaPriceFrom $252Free CancellationRating
7.9
7,954 reviews
Search Delta flights
American AirlinesPriceFrom $298Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $332Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
SouthwestPriceFrom $356Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $486Free 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
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Kirkland
Tukwila
Shoreline
Lakewood
Centralia
Fife
Cle Elum
Redmond
Westport

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.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/15
Wed 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States