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Cheap flights from Sioux Falls to Seattle from $137

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 5/4. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sioux Falls to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:18 pm - 10:06 am
FSD
-
SEA
16h 48m
1 stop
Frontier Logo
3:33 pm - 7:19 pm
SEA
-
FSD
25h 46m
1 stop
$261Frontier
Wed, Jun 3 - Tue, Jun 9
Frontier Logo
4:07 pm - 9:49 am
FSD
-
SEA
19h 42m
1 stop
Frontier Logo
7:50 pm - 3:22 pm
SEA
-
FSD
17h 32m
1 stop
$263Frontier
Mon, May 11 - Sun, May 17
Frontier Logo
7:18 pm - 10:06 am
FSD
-
SEA
16h 48m
1 stop
Frontier Logo
3:19 pm - 3:40 pm
SEA
-
FSD
22h 21m
1 stop
$281Frontier
Wed, May 27 - Sun, May 31
Multiple Airlines Logo
3:36 pm - 7:05 pm
FSD
-
SEA
29h 29m
2 stops
Multiple Airlines Logo
7:41 pm - 7:19 pm
SEA
-
FSD
21h 38m
1 stop
$308Multiple Airlines
Wed, Jun 3 - Tue, Jun 9
Multiple Airlines Logo
2:35 pm - 10:22 am
FSD
-
SEA
21h 47m
1 stop
Multiple Airlines Logo
11:06 am - 2:49 pm
SEA
-
FSD
25h 43m
2 stops
$309Multiple Airlines
Wed, May 13 - Tue, May 19
Frontier Logo
4:25 pm - 10:06 am
FSD
-
SEA
19h 41m
1 stop
Frontier Logo
7:50 pm - 6:33 pm
SEA
-
FSD
20h 43m
1 stop
$314Frontier
Mon, Jun 1 - Tue, Jun 2
Frontier Logo
7:18 pm - 6:35 pm
FSD
-
SEA
25h 17m
2 stops
Frontier Logo
7:41 pm - 7:19 pm
SEA
-
FSD
21h 38m
1 stop
$322Frontier
Wed, Jun 3 - Tue, Jun 9
Multiple Airlines Logo
2:35 pm - 10:22 am
FSD
-
SEA
21h 47m
1 stop
Multiple Airlines Logo
11:06 am - 10:54 am
SEA
-
FSD
45h 48m
2 stops
$326Multiple Airlines
Wed, May 13 - Wed, May 20
American Airlines Logo
6:25 am - 2:32 pm
FSD
-
SEA
10h 07m
1 stop
American Airlines Logo
10:17 am - 9:55 pm
SEA
-
FSD
9h 38m
1 stop
$329American Airlines
Wed, Sep 2 - Thu, Sep 10
Multiple Airlines Logo
2:35 pm - 10:22 am
FSD
-
SEA
21h 47m
1 stop
Multiple Airlines Logo
7:50 pm - 6:33 pm
SEA
-
FSD
20h 43m
1 stop
$330Multiple Airlines
Wed, May 13 - Tue, May 19

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Frontier flights from Sioux Falls to Seattle

Our best Frontier deals on Sioux Falls to Seattle flight tickets
Frontier
Jun 3
FSD7:18 pmSioux Falls Joe Foss Field
16h 48m
1 stop
SEA10:06 amSeattle/Tacoma Intl
Jun 9
SEA3:33 pmSeattle/Tacoma Intl
25h 46m
1 stop
FSD7:19 pmSioux Falls Joe Foss Field
$261
Frontier
May 11
FSD4:07 pmSioux Falls Joe Foss Field
19h 42m
1 stop
SEA9:49 amSeattle/Tacoma Intl
May 17
SEA7:50 pmSeattle/Tacoma Intl
17h 32m
1 stop
FSD3:22 pmSioux Falls Joe Foss Field
$263
Frontier
May 27
FSD7:18 pmSioux Falls Joe Foss Field
16h 48m
1 stop
SEA10:06 amSeattle/Tacoma Intl
May 31
SEA3:19 pmSeattle/Tacoma Intl
22h 21m
1 stop
FSD3:40 pmSioux Falls Joe Foss Field
$281

American Airlines flights from Sioux Falls to Seattle

Our best American Airlines deals on Sioux Falls to Seattle flight tickets
American Airlines
Sep 2
FSD6:25 amSioux Falls Joe Foss Field
10h 07m
1 stop
SEA2:32 pmSeattle/Tacoma Intl
Sep 10
SEA10:17 amSeattle/Tacoma Intl
9h 38m
1 stop
FSD9:55 pmSioux Falls Joe Foss Field
$329
American Airlines
Aug 26
FSD8:10 amSioux Falls Joe Foss Field
7h 53m
1 stop
SEA2:03 pmSeattle/Tacoma Intl
Sep 5
SEA6:00 amSeattle/Tacoma Intl
8h 53m
1 stop
FSD4:53 pmSioux Falls Joe Foss Field
$349
American Airlines
Jun 30
FSD5:35 pmSioux Falls Joe Foss Field
9h 24m
1 stop
SEA12:59 amSeattle/Tacoma Intl
Jul 7
SEA5:05 amSeattle/Tacoma Intl
9h 49m
1 stop
FSD4:54 pmSioux Falls Joe Foss Field
$389

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 April 30, 2026.
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

Cheapest round-trip

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 6/3

7:18 pm-10:06 am

1 stop16h 48m

Seattle/Tacoma Intl

Tue 6/9

3:33 pm-7:19 pm

1 stop25h 46m

$261

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Mon 5/11

4:07 pm-9:49 am

1 stop19h 42m

Seattle/Tacoma Intl

Sun 5/17

7:50 pm-3:22 pm

1 stop17h 32m

$263

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 5/27

7:18 pm-10:06 am

1 stop16h 48m

Seattle/Tacoma Intl

Sun 5/31

3:19 pm-3:40 pm

1 stop22h 21m

$281

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 6/3

3:36 pm-7:05 pm

2 stops29h 29m

Seattle/Tacoma Intl

Tue 6/9

7:41 pm-7:19 pm

1 stop21h 38m

$308

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 5/13

2:35 pm-10:22 am

1 stop21h 47m

Seattle/Tacoma Intl

Tue 5/19

11:06 am-2:49 pm

2 stops25h 43m

$309

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Mon 6/1

4:25 pm-10:06 am

1 stop19h 41m

Seattle/Tacoma Intl

Tue 6/2

7:50 pm-6:33 pm

1 stop20h 43m

$314

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 6/3

7:18 pm-6:35 pm

2 stops25h 17m

Seattle/Tacoma Intl

Tue 6/9

7:41 pm-7:19 pm

1 stop21h 38m

$322

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 5/13

2:35 pm-10:22 am

1 stop21h 47m

Seattle/Tacoma Intl

Wed 5/20

11:06 am-10:54 am

2 stops45h 48m

$326
Quickest round-trip

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 9/2

6:25 am-2:32 pm

1 stop10h 07m

Seattle/Tacoma Intl

Thu 9/10

10:17 am-9:55 pm

1 stop9h 38m

$329

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 5/13

2:35 pm-10:22 am

1 stop21h 47m

Seattle/Tacoma Intl

Tue 5/19

7:50 pm-6:33 pm

1 stop20h 43m

$330

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

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, January 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 $306. If you don’t want to visit Seattle in January, then you should wait until August to fly from Sioux Falls, when ticket prices are also cheap, with an average price of $326.

How far in advance should I book a flight from Sioux Falls 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 $406 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 $237 on momondo.

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

As of April 2026, prices for Sioux Falls to Seattle flights are approximately 42% 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

Fastest flight time

5h 35m

Direct flights

None
The fastest flight from Sioux Falls to Seattle takes 5h 35m
There are no direct flights from Sioux Falls to Seattle. There are no popular flight routes from Sioux Falls to Seattle.
Search flight deals

Frequently asked questions about flying from Sioux Falls to Seattle

  • 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 35m.

  • 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
5.6
2,969 reviews
Search Frontier flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,463 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.1
11,681 reviews
Search American Airlines flights
United AirlinesPriceFrom $284Free CancellationRating
7.4
9,677 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
Redmond
Kent
Marysville
Puyallup
Tukwila
Lakewood
Cle Elum
Federal Way
Centralia
Fife
Shoreline
Westport
Tumwater

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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