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$78+ Cheap flights from Des Moines to Seattle (DSM - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
DSM — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Des Moines to Seattle/Tacoma Intl are usually found in January or October, booked 66 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Des Moines to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Des Moines (DSM) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$168
(Kiwi.com)

One-way from

$78
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$406
From Des Moines to Seattle/Tacoma Intl
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One-way flight from Des Moines to Seattle/Tacoma Intl
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Des Moines to Seattle

Cheapest flights from Des Moines to Seattle
Explore the most affordable flight options available from Des Moines to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/82:37 pmDSM - SEA
1 stop23h 30mFrontier
Wed 10/158:43 pmSEA - DSM
1 stop15h 09mFrontier
Deal found 9/10$168
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/292:25 pmDSM - SEA
1 stop12h 05mFrontier
Mon 10/66:12 amSEA - DSM
1 stop5h 28mFrontier
Deal found 9/9$186
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/32:32 pmDSM - SEA
1 stop23h 41mMultiple Airlines
Fri 11/78:22 pmSEA - DSM
1 stop18h 16mMultiple Airlines
Deal found 9/10$188
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/32:25 pmDSM - SEA
1 stop12h 05mFrontier
Sun 10/128:43 pmSEA - DSM
1 stop15h 09mFrontier
Deal found 9/11$190
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/152:37 pmDSM - SEA
2 stops26h 39mFrontier
Wed 10/228:43 pmSEA - DSM
1 stop15h 09mFrontier
Deal found 9/10$191
This Booking.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/222:37 pmDSM - SEA
2 stops53h 07mFrontier
Wed 10/2912:58 pmSEA - DSM
1 stop22h 49mFrontier
Deal found 9/8$199
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/32:32 pmDSM - SEA
1 stop23h 41mFrontier
Fri 11/77:17 pmSEA - DSM
2 stops40h 30mFrontier
Deal found 9/10$201
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1212:05 pmDSM - SEA
1 stop12h 25mSouthwest
Wed 11/197:05 amSEA - DSM
1 stop6h 30mSouthwest
Deal found 9/9$209

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Des Moines to Seattle that are best for you.

Fly from

Des Moines

Fly to

Seattle

Route

Depart

Return

Price

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 10/22

2:37 pm-5:44 pm

2 stops53h 07m

Seattle/Tacoma Intl

Wed 10/29

12:58 pm-1:47 pm

1 stop22h 49m

$199

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 11/12

12:05 pm-10:30 pm

1 stop12h 25m

Seattle/Tacoma Intl

Wed 11/19

7:05 am-3:35 pm

1 stop6h 30m

$209

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Tue 10/21

5:32 pm-11:57 pm

1 stop8h 25m

Seattle/Tacoma Intl

Tue 10/28

6:00 am-4:52 pm

1 stop8h 52m

$239

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Sat 10/25

3:30 pm-8:20 pm

1 stop6h 50m

Seattle/Tacoma Intl

Sat 11/1

1:35 pm-9:03 pm

1 stop5h 28m

$239

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Sat 10/18

3:30 pm-8:20 pm

1 stop6h 50m

Seattle/Tacoma Intl

Wed 10/22

6:00 am-1:59 pm

1 stop5h 59m

$239

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 11/12

12:05 pm-10:30 pm

1 stop12h 25m

Seattle/Tacoma Intl

Thu 11/13

5:15 am-3:30 pm

1 stop8h 15m

$264

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 9/26

2:25 pm-12:30 am

1 stop12h 05m

Seattle/Tacoma Intl

Mon 9/29

6:12 am-1:40 pm

1 stop5h 28m

$271

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 10/30

9:30 am-4:53 pm

1 stop9h 23m

Seattle/Tacoma Intl

Sun 11/2

12:59 am-10:40 am

1 stop7h 41m

$283

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 10/30

2:40 pm-8:19 pm

1 stop7h 39m

Seattle/Tacoma Intl

Mon 11/3

6:00 am-4:52 pm

1 stop8h 52m

$283

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 11/12

11:00 am-5:00 pm

1 stop8h 00m

Seattle/Tacoma Intl

Sun 11/16

6:00 am-2:05 pm

1 stop6h 05m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 21 results
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Best time to book a flight from Des Moines to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Des Moines with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Des Moines to Seattle

How far ahead should I book a flight from Des Moines to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Des Moines to Seattle. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Des Moines to Seattle, you should look to book at least 66 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Des Moines to Seattle?

Currently, January is the cheapest month in which you can book a flight from Des Moines to Seattle (average of $238). Flying from Des Moines to Seattle in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DSM to SEA?

Find hourly flight availability from Des Moines to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s optimal to fly from Des Moines to Seattle in the evening. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Des Moines to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Des Moines to Seattle. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Des Moines to Seattle flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Des Moines to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Des Moines to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Des Moines to Seattle?

    A quick flight from Des Moines to Seattle can take about 8h 25m. Frontier provides one of the quickest options available for as low as $239. The distance from Des Moines to Seattle is about 1460 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Des Moines to Seattle round-trip?

    Frontier, at $131, was found to be the cheapest airline from Des Moines to Seattle.Alternate airlines to your destination round-trip include Delta and American Airlines. Frontier is priced at 71% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Des Moines to Seattle that include hotel bookings?

    Yes. In addition to deals on Des Moines to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Des Moines to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Des Moines to Seattle.

  • Can I find deals for business class flights from Des Moines to Seattle?

    Yes. Cheapflights offers flight deals from Des Moines to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Des Moines to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Des Moines to Seattle (average of $238). Flying from Des Moines to Seattle in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Lacey
Renton
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Des Moines to Seattle

Discover the top 6 airlines that operate flights from Des Moines to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$288FlexibilityNo cancel feeOn-time62%
DeltaCheapest$252Average$400FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$298Average$420FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$335Average$498FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$356Average$488FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$486Average$616FlexibilityNo cancel feeOn-time75%

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