Cheap flight deals from Des Moines to Seattle Starting at $83

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Des Moines to Seattle?

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

23 30
Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8
8 15

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

When are flight tickets from Des Moines (DSM) to Seattle (SEA) the cheapest?

Airlines adjust prices for flights from Des Moines to Seattle based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from Des Moines (DSM) to Seattle (SEA) cost?

According to Trip.com's data, the lowest price is around $496.
What is the transportation method from the main airport to downtown in Seattle?
- The distance from Seattle Tacoma Intl. Airport to downtown is about 17 km. It takes about 30 minutes by taxi.

How to find a cheap flight from Des Moines to Seattle

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Des Moines to Seattle. Book your flights at the right time and save more.

Be flexible with your travel dates to get the cheapest Des Moines to Seattle ticket.

Tap "Date" in the flight search bar to browse the calendar and find airfare from Des Moines to Seattle for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is $83 for a one-way ticket on Wed, Apr 23.

Compare cheap Des Moines to Seattle flight deals from hundreds of airlines.

Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from Des Moines to Seattle. The most affordable airline currently operating on this route is Frontier Airlines.

Set up a Price Alert to track fare drops.

Set up a Price Alert for your Des Moines to Seattle route to track ticket prices effortlessly—no need to check manually every day.

Don't miss out on cheap Des Moines to Seattle flight deals and promo codes.

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Book early or wait unitl the last minute to fine the best fares.

It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.

Search for flights on the go.

For the best booking experience on the go, download Trip.com and search for cheap flights from Des Moines to Seattle to access exclusive deals just for you.

Flight Info | Des Moines to Seattle

Cheapest one-way flight price	$83
Off-season for travel	March
Peak season for travel	December
Flight distance	2,350.16 km
Popular airline	United Airlines