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Cheap flights from Sioux Falls to Seattle from $134

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux Falls to Seattle departing on 12/4. 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

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Find the cheapest flights from Sioux Falls to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:26 pm - 11:53 amFSD-SEA
23h 27m1 stop
Frontier Logo
2:27 pm - 7:28 pmSEA-FSD
27h 01m1 stop
$170Frontier
Find Deal
Thu, Dec 11 - Sat, Jan 10
Multiple Airlines Logo
11:40 am - 10:06 amFSD-SEA
24h 26m1 stop
Multiple Airlines Logo
2:27 pm - 7:28 pmSEA-FSD
27h 01m1 stop
$180Multiple Airlines
Find Deal
Sun, Dec 14 - Sat, Jan 10
Multiple Airlines Logo
2:26 pm - 11:53 amFSD-SEA
23h 27m1 stop
Multiple Airlines Logo
1:07 pm - 6:30 pmSEA-FSD
27h 23m1 stop
$184Multiple Airlines
Find Deal
Thu, Dec 11 - Fri, Jan 9
Multiple Airlines Logo
11:40 am - 10:06 amFSD-SEA
24h 26m1 stop
Multiple Airlines Logo
1:07 pm - 6:30 pmSEA-FSD
27h 23m1 stop
$194Multiple Airlines
Find Deal
Sun, Dec 14 - Fri, Jan 9
Multiple Airlines Logo
2:26 pm - 11:53 amFSD-SEA
23h 27m1 stop
Multiple Airlines Logo
9:16 pm - 8:43 pmSEA-FSD
21h 27m1 stop
$198Multiple Airlines
Find Deal
Thu, Dec 11 - Thu, Jan 15
Multiple Airlines Logo
11:40 am - 10:06 amFSD-SEA
24h 26m1 stop
Multiple Airlines Logo
9:16 pm - 8:43 pmSEA-FSD
21h 27m1 stop
$208Multiple Airlines
Find Deal
Sun, Dec 14 - Thu, Jan 15
Multiple Airlines Logo
8:36 pm - 4:36 pmFSD-SEA
22h 00m1 stop
Multiple Airlines Logo
2:27 pm - 7:28 pmSEA-FSD
27h 01m1 stop
$214Multiple Airlines
Find Deal
Fri, Dec 12 - Sat, Jan 10
Multiple Airlines Logo
2:26 pm - 11:53 amFSD-SEA
23h 27m1 stop
Multiple Airlines Logo
9:16 pm - 8:28 pmSEA-FSD
21h 12m2 stops
$217Multiple Airlines
Find Deal
Thu, Dec 11 - Thu, Jan 15
Multiple Airlines Logo
1:40 pm - 10:06 amFSD-SEA
22h 26m1 stop
Multiple Airlines Logo
2:27 pm - 7:28 pmSEA-FSD
27h 01m1 stop
$220Multiple Airlines
Find Deal
Wed, Dec 10 - Sat, Jan 10
Multiple Airlines Logo
2:26 pm - 11:53 amFSD-SEA
23h 27m1 stop
Multiple Airlines Logo
10:19 am - 9:57 amSEA-FSD
21h 38m2 stops
$221Multiple Airlines
Find Deal
Thu, Dec 11 - Sun, Jan 11

Alaska Airlines flights from Sioux Falls to Seattle

Our best Alaska Airlines deals on Sioux Falls to Seattle flight tickets
Alaska Airlines
Feb 12
FSD12:19 pmSioux Falls Joe Foss Field
13h 21m
2 stops
SEA11:40 pmSeattle/Tacoma Intl
Feb 18
SEA8:11 pmSeattle/Tacoma Intl
20h 54m
2 stops
FSD7:05 pmSioux Falls Joe Foss Field
$394
Find similar
Alaska Airlines
Feb 12
FSD7:00 amSioux Falls Joe Foss Field
10h 46m
1 stop
SEA3:46 pmSeattle/Tacoma Intl
Feb 18
SEA8:11 pmSeattle/Tacoma Intl
20h 54m
2 stops
FSD7:05 pmSioux Falls Joe Foss Field
$424
Find similar
Alaska Airlines
Feb 13
FSD12:19 pmSioux Falls Joe Foss Field
13h 21m
2 stops
SEA11:40 pmSeattle/Tacoma Intl
Feb 18
SEA8:11 pmSeattle/Tacoma Intl
20h 54m
2 stops
FSD7:05 pmSioux Falls Joe Foss Field
$429
Find similar

United Airlines flights from Sioux Falls to Seattle

Our best United Airlines deals on Sioux Falls to Seattle flight tickets
United Airlines
Dec 3
FSD1:55 pmSioux Falls Joe Foss Field
9h 05m
2 stops
SEA9:00 pmSeattle/Tacoma Intl
Dec 10
SEA12:35 pmSeattle/Tacoma Intl
5h 46m
1 stop
FSD8:21 pmSioux Falls Joe Foss Field
$309
Find similar
United Airlines
Feb 13
FSD5:50 amSioux Falls Joe Foss Field
5h 59m
1 stop
SEA9:49 amSeattle/Tacoma Intl
Feb 18
SEA5:00 amSeattle/Tacoma Intl
5h 55m
1 stop
FSD12:55 pmSioux Falls Joe Foss Field
$336
Find similar
United Airlines
Dec 3
FSD1:55 pmSioux Falls Joe Foss Field
9h 05m
2 stops
SEA9:00 pmSeattle/Tacoma Intl
Dec 10
SEA9:25 amSeattle/Tacoma Intl
12h 18m
2 stops
FSD11:43 pmSioux Falls Joe Foss Field
$349
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sioux Falls 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 November 21, 2025.
Use the filters below to find and compare flights from Sioux Falls to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 12/11

2:26 pm-11:53 am

1 stop23h 27m

Seattle/Tacoma Intl

Sat 1/10

2:27 pm-7:28 pm

1 stop27h 01m

$170

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sun 12/14

11:40 am-10:06 am

1 stop24h 26m

Seattle/Tacoma Intl

Sat 1/10

2:27 pm-7:28 pm

1 stop27h 01m

$180

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 12/11

2:26 pm-11:53 am

1 stop23h 27m

Seattle/Tacoma Intl

Fri 1/9

1:07 pm-6:30 pm

1 stop27h 23m

$184

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sun 12/14

11:40 am-10:06 am

1 stop24h 26m

Seattle/Tacoma Intl

Fri 1/9

1:07 pm-6:30 pm

1 stop27h 23m

$194

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 12/11

2:26 pm-11:53 am

1 stop23h 27m

Seattle/Tacoma Intl

Thu 1/15

9:16 pm-8:43 pm

1 stop21h 27m

$198

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sun 12/14

11:40 am-10:06 am

1 stop24h 26m

Seattle/Tacoma Intl

Thu 1/15

9:16 pm-8:43 pm

1 stop21h 27m

$208

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 12/12

8:36 pm-4:36 pm

1 stop22h 00m

Seattle/Tacoma Intl

Sat 1/10

2:27 pm-7:28 pm

1 stop27h 01m

$214

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 12/11

2:26 pm-11:53 am

1 stop23h 27m

Seattle/Tacoma Intl

Thu 1/15

9:16 pm-8:28 pm

2 stops21h 12m

$217

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 12/10

1:40 pm-10:06 am

1 stop22h 26m

Seattle/Tacoma Intl

Sat 1/10

2:27 pm-7:28 pm

1 stop27h 01m

$220

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 12/11

2:26 pm-11:53 am

1 stop23h 27m

Seattle/Tacoma Intl

Sun 1/11

10:19 am-9:57 am

2 stops21h 38m

$221

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Sioux Falls 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 typical price of a round-trip flight between Sioux Falls and Seattle?

What is the cheapest month to fly to Seattle?

In general, August is the cheapest month to fly from Sioux Falls to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $321. If you don’t want to visit Seattle in August, then you should wait until July to fly from Sioux Falls, when ticket prices are also cheap, with an average price of $339.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Sioux Falls is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $550. 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 Sioux Falls because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $754.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Sioux Falls at noon is the least expensive time of day to depart. momondo users have found prices as low as $527 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $594. 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 Sioux Falls when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $419 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Sioux Falls for as low as $290 on momondo.

How have Sioux Falls to Seattle flight prices changed over time?

As of November 2025, prices for Sioux Falls to Seattle flights are approximately 117% more expensive when compared to flights at the same time last year.

When to book flights from Sioux Falls to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Sioux Falls to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Sioux Falls to Seattle (FSD to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sioux Falls to Seattle

Direct flights

None
There are no direct flights from Sioux Falls to Seattle. There are no popular flight routes from Sioux Falls to Seattle.
Search flight deals

  • How far is Sioux Falls Joe Foss Field to Seattle/Tacoma Intl by plane?

    The straight-line distance from Sioux Falls Joe Foss Field to Seattle/Tacoma Intl is 1262.9 mi. By plane, this route typically takes 5h 55m.

  • When did momondo last update prices for flights from Sioux Falls Joe Foss Field Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Sioux Falls Joe Foss Field Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Sioux Falls Joe Foss Field Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Sioux Falls Joe Foss Field Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sioux Falls Joe Foss Field 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 Sioux Falls to Seattle?

Best airlines flying from Sioux Falls to Seattle

Compare and see reviews for airlines that fly from Sioux Falls to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $190Free CancellationRating
5.8
3,104 reviews
Search Frontier flights
DeltaPriceFrom $208Free CancellationRating
7.9
8,002 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
United AirlinesPriceFrom $284Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Puyallup
Marysville
Redmond
Tukwila
Lakewood
Federal Way
Fife
Cle Elum
Centralia
Kirkland
Westport
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Sioux Falls to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Sioux Falls to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Sioux Falls to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Sioux Falls which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Sioux Falls to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Sioux Falls.

I’m not ready to book a flight from Sioux Falls to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Sioux Falls to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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