Are direct flights from Des Moines to Seattle always the best option?

Direct flights offer convenience by reducing travel time and avoiding layovers. However, they are not always the cheapest option. Flights with one or more stops can sometimes be more affordable, depending on the route and airline.

Can flexible travel dates help on Des Moines to Seattle flights?

Yes, having flexible travel dates can significantly increase your chances of finding cheaper flights. Prices often vary based on the day of the week, season, and demand. Adjusting your departure or return by a few days may lead to substantial savings.

What extra costs should I check before booking Des Moines to Seattle flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Understanding these fees can help you calculate the true total cost of your trip.

Flights From Des Moines

To Seattle

Cheap Flights from Des Moines to Seattle

Browse current best options from Des Moines. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Des Moines

RatePunk searches hundreds of travel sites at once for deals on flights to Seattle

Prices updated 2 days ago

444 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Aug 9, 2026.)

Today’s best flight deals from Des Moines to Seattle

Explore current cheapest deals departing from Des Moines to Seattle

2026-10-14 – 2026-10-15
DSM - Seattle
82% AI deal score
$426
$245
Round trip
2026-09-22 – 2026-09-29
DSM - Seattle
80% AI deal score
$367
$250
Round trip
2026-09-28 – 2026-10-21
DSM - Seattle
71% AI deal score
$317
$263
Round trip
2026-11-09 – 2026-11-10
DSM - Seattle
80% AI deal score
$405
$263
Round trip
2026-09-11 – 2026-09-12
DSM - Seattle
78% AI deal score
$385
$264
Round trip
2026-09-28 – 2026-10-13
DSM - Seattle
75% AI deal score
$324
$264
Round trip
2026-09-28 – 2026-10-20
DSM - Seattle
71% AI deal score
$317
$264
Round trip
2026-09-13 – 2026-10-13
DSM - Seattle
70% AI deal score
$315
$265
Round trip
2026-10-26 – 2026-11-10
DSM - Seattle
78% AI deal score
$368
$266
Round trip
2026-09-13 – 2026-09-29
DSM - Seattle
71% AI deal score
$321
$266
Round trip

Des Moines to Seattle: Overview

Insights for flights from Des Moines to Seattle

A typical journey from Des Moines to Seattle takes about 6h 10m, including connections. Given that most itineraries for this route involve at least one stop, this duration reflects the overall travel time you can expect. This medium-haul route covers a distance of 2351 kilometers between the two cities.

Right now, if you are looking for cheap flights from Des Moines to Seattle, fares are below the typical level. Prices for this route typically range from $430–$726, with a median of $562. Currently, about 16% of recent fares are classified as a good price, indicating some opportunities for savings.

When is the cheapest time to fly from Des Moines to Seattle? The data indicates that June is the most affordable month, with a median fare of $354. Other cost-effective options include April and September, both with median fares of $457.

For flights from Des Moines to Seattle, most itineraries connect at least once. In fact, 0% of recent fares were for direct flights from Des Moines to Seattle. For connecting itineraries, the typical number of stopovers is 2.

How much is a round trip from Des Moines to Seattle

Regular price: $353 - $707

Prices are currently below the regular range for flights from Des Moines to Seattle.

The regular price range for flights from Des Moines to Seattle is typically between $353 and $707. The current lowest deal is $246 with Frontier Airlines, for travel from Oct 14-Oct 15.

now $246

Low $353

High $707

The cheapest time to fly from Des Moines to Seattle

The cheapest month to fly from Des Moines to Seattle is January, with a median price of $366. The most expensive month to fly is April, with a median price of $945. Prices are generally lower from January to December.

January

Cheapest

Flights from $366

April

Most Expensive

Flights from $945

Jan

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Des Moines to Seattle

Frontier Airlines

Allegiant Air

United Airlines

American Airlines

Last-minute flights going from Des Moines to Seattle

Sun, Aug 9

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

Allegiant Air

$972

$543

One-way

Sun, Aug 9

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

Allegiant Air

$966

$575

One-way

Sun, Aug 9

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

Allegiant Air

$864

$604

One-way

Sun, Aug 9

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

$988

$617

One-way

Mon, Aug 10

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

Allegiant Air

$966

$610

One-way

Mon, Aug 10

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

Alaska Airlines, Inc.

$795

$677

One-way

Biggest price drops on these dates for flights from Des Moines to Seattle

3 nights

Aug 9 - Aug 12

$972 → $543

44%

4 nights

Aug 9 - Aug 13

$966 → $575

40%

2 nights

Aug 9 - Aug 11

$988 → $617

38%

4 nights

Aug 10 - Aug 14

$966 → $610

37%

Popular Airports to fly from Des Moines to Seattle

Des Moines - Seattle route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Des Moines to Seattle are below the typical level, with a median price of $562.

📅 Best time to fly

Fly in June for the best prices

Historically, June is the cheapest month to fly from Des Moines to Seattle, with a median price of $354.

⏱️ Flight duration

Connecting flights average 6h 10m

Connecting flights from Des Moines to Seattle typically take 6h 10m, covering a distance of 2351 km.

✈️ Airlines & availability

Connecting flights are dominant

There are no direct flights available; connecting flights are dominant for this route.

🏆 Airline highlight

Frontier Airlines offers deals

Frontier Airlines has recently offered deals for this route, with a notable fare of $246.

🎯 Booking tip

Deals are frequent on this route

Deals on flights from Des Moines to Seattle are frequent, appearing often in a 30-day window.

Des Moines main airports to depart from

Des Moines International (DSM)

Cheapest

Des Moines International Airport is a convenient choice for flights from Des Moines to Seattle.

📍 ~8 km from city center (reachable by car)

💸 Flights from ~$162

Seattle main airports to arrive at

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is the primary airport for flights arriving in Seattle from Des Moines.

📍 ~18 km from Seattle (reachable by car, public transport).

💸 Flights from ~$162

Airports nearby Seattle used as alternative

Paine Field Everett (PAE)

Paine Field Everett is a useful alternative for travelers located in North Seattle or Snohomish County.

📍 ~35 km from Seattle (reachable by car)

💸 Flights from ~$396

Business & First Class Flight Deals to Seattle

Discover luxury on the budget with premium cabin class on flights from Des Moines to Seattle.

Elite

Best Elite deals to Seattle

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From DSM

Elite

Aug 29

Seattle, United States

82% AI deal score

$1,678

$1,038

Save $640

United Airlines

Business Class

From DSM

Elite

Aug 25

Seattle, United States

79% AI deal score

$1,346

$1,005

Save $341

United Airlines

Business Class

From DSM

Seattle, United States

72% AI deal score

$1,191

$1,033

Save $158

United Airlines

Business Class

Frequently Asked Questions About Flights to Seattle

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking flights in advance, often several weeks to a few months before your desired departure, can sometimes result in lower prices. However, last-minute deals can occasionally appear. Monitoring price trends may help you decide the optimal booking time.

Comparing nearby airports at both your origin and destination can sometimes uncover more economical flight options. While it may add to your ground travel time, the potential savings on airfare can be significant. Always factor in the total cost and convenience.

Related routes

More routes from Des Moines

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Flights to Seattle from other cities

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Des Moines to Seattle: Overview

Insights for flights from Des Moines to Seattle

How much is a round trip from Des Moines to Seattle

Regular price: $353 - $707

Prices are currently below the regular range for flights from Des Moines to Seattle.

The regular price range for flights from Des Moines to Seattle is typically between $353 and $707. The current lowest deal is $246 with Frontier Airlines, for travel from Oct 14-Oct 15.

now $246

Low $353

High $707

The cheapest time to fly from Des Moines to Seattle

January

Cheapest

Flights from $366

April

Most Expensive

Flights from $945

Jan

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Des Moines to Seattle

Frontier Airlines

Allegiant Air

United Airlines

American Airlines

Last-minute flights going from Des Moines to Seattle

Sun, Aug 9

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

Allegiant Air

$972

$543

One-way

Sun, Aug 9

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

Allegiant Air

$966

$575

One-way

Sun, Aug 9

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

Allegiant Air

$864

$604

One-way

Sun, Aug 9

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

$988

$617

One-way

Mon, Aug 10

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

Allegiant Air

$966

$610

One-way

Mon, Aug 10

⌛ Last-Minute

DSM - Seattle

Des Moines (DSM) - Seattle (SEA)

Alaska Airlines, Inc.

$795

$677

One-way

Biggest price drops on these dates for flights from Des Moines to Seattle

3 nights

Aug 9 - Aug 12

$972 → $543

44%

4 nights

Aug 9 - Aug 13

$966 → $575

40%

2 nights

Aug 9 - Aug 11

$988 → $617

38%

4 nights

Aug 10 - Aug 14

$966 → $610

37%

Popular Airports to fly from Des Moines to Seattle