Seattle

$139+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
DSM — SEA
Mar 31 — Apr 71
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Cheapflights Tip: The best prices from Des Moines to Seattle/Tacoma Intl are usually found in January or September, 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$259
(Mytrip)

One-way from

$139
(Frontier)

Popular in

June

Cheapest in

January

Average price

$497
Provider with most accurate pricing for Des Moines-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Des Moines-Seattle/Tacoma Intl flights.
From Des Moines to Seattle/Tacoma Intl
One-way flight from Des Moines to Seattle/Tacoma Intl
Highest demand for flights based on searches. 13% potential increase in price ($73 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in March 2025

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 March 26, 2025.

This Mytrip deal was found by Cheapflights users on 3/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2210:22 pmDSM - SEA
1 stop27h 48mMultiple Airlines
Wed 5/286:00 amSEA - DSM
1 stop6h 32mMultiple Airlines
Deal found 3/24$259
This Frontier deal was found by Cheapflights users on 3/25. 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.
Wed 4/237:27 pmDSM - SEA
1 stop7h 17mFrontier
Wed 4/306:00 amSEA - DSM
1 stop10h 37mFrontier
Deal found 3/25$278
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/105:27 pmDSM - SEA
1 stop7h 30mAmerican Airlines
Sat 5/175:22 amSEA - DSM
1 stop9h 15mAmerican Airlines
Deal found 3/25$317
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/25:46 pmDSM - SEA
1 stop7h 53mDelta
Tue 5/1310:55 pmSEA - DSM
1 stop8h 42mDelta
Deal found 3/25$327
This Southwest deal was found by Cheapflights users on 3/25. 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 6/412:20 pmDSM - SEA
2 stops10h 40mSouthwest
Sat 6/75:00 amSEA - DSM
1 stop5h 10mSouthwest
Deal found 3/25$342
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/33:20 pmDSM - SEA
1 stop9h 30mUnited Airlines
Wed 5/145:15 amSEA - DSM
1 stop5h 28mUnited Airlines
Deal found 3/25$397
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/305:30 amDSM - SEA
2 stops13h 30mAlaska Airlines
Mon 6/27:00 amSEA - DSM
2 stops14h 39mAlaska Airlines
Deal found 3/26$597

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 March 26, 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

Thu 5/22

10:22 pm-12:10 am

1 stop27h 48m

Seattle/Tacoma Intl

Wed 5/28

6:00 am-2:32 pm

1 stop6h 32m

$259

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 4/23

7:27 pm-12:44 am

1 stop7h 17m

Seattle/Tacoma Intl

Wed 4/30

6:00 am-6:37 pm

1 stop10h 37m

$278

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Tue 4/15

2:37 pm-8:13 pm

1 stop7h 36m

Seattle/Tacoma Intl

Mon 4/21

12:59 am-12:02 pm

1 stop9h 03m

$317

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 5/2

5:46 pm-11:39 pm

1 stop7h 53m

Seattle/Tacoma Intl

Tue 5/13

10:55 pm-9:37 am

1 stop8h 42m

$327

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Tue 9/16

6:30 am-10:25 am

1 stop5h 55m

Seattle/Tacoma Intl

Tue 9/23

11:10 am-9:25 pm

2 stops8h 15m

$342

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Sat 5/3

3:20 pm-10:50 pm

1 stop9h 30m

Seattle/Tacoma Intl

Wed 5/14

5:15 am-12:43 pm

1 stop5h 28m

$397

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Fri 4/25

2:12 pm-8:32 pm

1 stop8h 20m

Seattle/Tacoma Intl

Fri 4/25

11:59 pm-11:21 am

1 stop9h 22m

$441

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Mon 5/5

7:20 pm-12:44 am

1 stop7h 24m

$139

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Wed 7/9

2:53 pm-8:25 pm

1 stop7h 32m

$169

Des MoinesSeattle

DSM - SEA

DSMSEA

Des Moines

Thu 4/3

3:17 pm-8:43 am

1 stop19h 26m

$173

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 13 results
1
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Compare providers for flights from Des Moines to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Des Moines to Seattle in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Des Moines-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Des Moines-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Des Moines-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Des Moines-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Des Moines-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 21, 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 July is currently the most expensive (average of $411). 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 March 26, 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.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 March 26, 2025.
To help decide which airline to fly from Des Moines to Seattle, see what other customers have to say about Southwest, Alaska Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
8.0
Very good

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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

    Frontier, at $278, was found to be the cheapest airline from Des Moines to Seattle.Alternate airlines to your destination round-trip include American Airlines and Delta. Frontier is priced at 40% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Des Moines to Seattle one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $139. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Des Moines to Seattle for a low price.

  • 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 July is currently the most expensive (average of $411). 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 Des Moines?

Book flights to Des Moines if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

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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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$129Average$265FlexibilityNo cancel feeOn-time62%
DeltaCheapest$296Average$423FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$296Average$430FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$322Average$500FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$356Average$492FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$486Average$629FlexibilityNo cancel feeOn-time75%
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