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Cheap flights from Sioux Falls to Seattle from $165

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 6/1. 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
8:06 pm - 9:27 am
FSD
-
SEA
15h 21m
1 stop
Frontier Logo
7:12 pm - 7:21 pm
SEA
-
FSD
22h 09m
1 stop
$269Frontier
Fri, Apr 24 - Thu, Apr 30
Frontier Logo
7:21 pm - 11:37 am
FSD
-
SEA
18h 16m
1 stop
Frontier Logo
12:42 pm - 6:31 pm
SEA
-
FSD
27h 49m
1 stop
$270Frontier
Fri, Apr 3 - Thu, Apr 9
Frontier Logo
7:21 pm - 11:37 am
FSD
-
SEA
18h 16m
1 stop
Frontier Logo
12:42 pm - 6:31 pm
SEA
-
FSD
27h 49m
1 stop
$280Frontier
Fri, Apr 3 - Thu, Apr 9
Frontier Logo
7:18 pm - 10:06 am
FSD
-
SEA
16h 48m
1 stop
Frontier Logo
3:19 pm - 3:44 pm
SEA
-
FSD
22h 25m
1 stop
$292Frontier
Wed, May 27 - Thu, Jun 4
Frontier Logo
7:18 pm - 2:01 pm
FSD
-
SEA
20h 43m
1 stop
Frontier Logo
7:50 pm - 3:44 pm
SEA
-
FSD
17h 54m
1 stop
$321Frontier
Wed, May 20 - Sun, May 24
American Airlines Logo
5:34 pm - 11:49 pm
FSD
-
SEA
8h 15m
1 stop
American Airlines Logo
3:06 pm - 12:10 am
SEA
-
FSD
7h 04m
1 stop
$329American Airlines
Thu, Jul 23 - Wed, Jul 29
United Airlines Logo
6:00 am - 2:46 pm
FSD
-
SEA
10h 46m
2 stops
United Airlines Logo
3:48 pm - 11:44 pm
SEA
-
FSD
5h 56m
1 stop
$334United Airlines
Wed, Apr 8 - Wed, Apr 15
Frontier Logo
7:18 pm - 2:01 pm
FSD
-
SEA
20h 43m
1 stop
Frontier Logo
7:50 pm - 3:44 pm
SEA
-
FSD
17h 54m
1 stop
$337Frontier
Wed, May 20 - Sun, May 24
Multiple Airlines Logo
3:51 pm - 4:14 pm
FSD
-
SEA
26h 23m
1 stop
Multiple Airlines Logo
10:05 pm - 6:31 pm
SEA
-
FSD
18h 26m
2 stops
$345Multiple Airlines
Mon, Apr 6 - Thu, Apr 9
American Airlines Logo
1:41 pm - 7:36 pm
FSD
-
SEA
7h 55m
1 stop
American Airlines Logo
1:19 pm - 11:11 pm
SEA
-
FSD
7h 52m
1 stop
$354American Airlines
Fri, Apr 17 - Sat, May 2

Frontier flights from Sioux Falls to Seattle

Our best Frontier deals on Sioux Falls to Seattle flight tickets
Frontier
Apr 24
FSD8:06 pmSioux Falls Joe Foss Field
15h 21m
1 stop
SEA9:27 amSeattle/Tacoma Intl
Apr 30
SEA7:12 pmSeattle/Tacoma Intl
22h 09m
1 stop
FSD7:21 pmSioux Falls Joe Foss Field
$269
Frontier
Apr 3
FSD7:21 pmSioux Falls Joe Foss Field
18h 16m
1 stop
SEA11:37 amSeattle/Tacoma Intl
Apr 9
SEA12:42 pmSeattle/Tacoma Intl
27h 49m
1 stop
FSD6:31 pmSioux Falls Joe Foss Field
$270
Frontier
Apr 3
FSD7:21 pmSioux Falls Joe Foss Field
18h 16m
1 stop
SEA11:37 amSeattle/Tacoma Intl
Apr 9
SEA12:42 pmSeattle/Tacoma Intl
27h 49m
1 stop
FSD6:31 pmSioux Falls Joe Foss Field
$280

Alaska Airlines flights from Sioux Falls to Seattle

Our best Alaska Airlines deals on Sioux Falls to Seattle flight tickets
Alaska Airlines
May 12
FSD12:29 pmSioux Falls Joe Foss Field
12h 24m
2 stops
SEA10:53 pmSeattle/Tacoma Intl
May 15
SEA9:09 pmSeattle/Tacoma Intl
23h 57m
2 stops
FSD11:06 pmSioux Falls Joe Foss Field
$444
Alaska Airlines
Sep 2
FSD12:48 pmSioux Falls Joe Foss Field
9h 49m
1 stop
SEA8:37 pmSeattle/Tacoma Intl
Sep 10
SEA7:00 amSeattle/Tacoma Intl
14h 51m
2 stops
FSD11:51 pmSioux Falls Joe Foss Field
$464
Alaska Airlines
Sep 2
FSD6:00 amSioux Falls Joe Foss Field
12h 47m
2 stops
SEA4:47 pmSeattle/Tacoma Intl
Sep 10
SEA7:00 amSeattle/Tacoma Intl
14h 51m
2 stops
FSD11:51 pmSioux Falls Joe Foss Field
$469

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 March 16, 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

Fri 4/24

8:06 pm-9:27 am

1 stop15h 21m

Seattle/Tacoma Intl

Thu 4/30

7:12 pm-7:21 pm

1 stop22h 09m

$269

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 4/3

7:21 pm-11:37 am

1 stop18h 16m

Seattle/Tacoma Intl

Thu 4/9

12:42 pm-6:31 pm

1 stop27h 49m

$270

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 4/3

7:21 pm-11:37 am

1 stop18h 16m

Seattle/Tacoma Intl

Thu 4/9

12:42 pm-6:31 pm

1 stop27h 49m

$280

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

Thu 6/4

3:19 pm-3:44 pm

1 stop22h 25m

$292

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 5/20

7:18 pm-2:01 pm

1 stop20h 43m

Seattle/Tacoma Intl

Sun 5/24

7:50 pm-3:44 pm

1 stop17h 54m

$321
Quickest round-trip

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 7/23

5:34 pm-11:49 pm

1 stop8h 15m

Seattle/Tacoma Intl

Wed 7/29

3:06 pm-12:10 am

1 stop7h 04m

$329

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 4/8

6:00 am-2:46 pm

2 stops10h 46m

Seattle/Tacoma Intl

Wed 4/15

3:48 pm-11:44 pm

1 stop5h 56m

$334

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 5/20

7:18 pm-2:01 pm

1 stop20h 43m

Seattle/Tacoma Intl

Sun 5/24

7:50 pm-3:44 pm

1 stop17h 54m

$337

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Mon 4/6

3:51 pm-4:14 pm

1 stop26h 23m

Seattle/Tacoma Intl

Thu 4/9

10:05 pm-6:31 pm

2 stops18h 26m

$345

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 4/17

1:41 pm-7:36 pm

1 stop7h 55m

Seattle/Tacoma Intl

Sat 5/2

1:19 pm-11:11 pm

1 stop7h 52m

$354

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 July to fly from Sioux Falls, when ticket prices are also cheap, with an average price of $316.

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 $408 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 March 2026, prices for Sioux Falls to Seattle flights are approximately 244% 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 46m

Direct flights

None
The fastest flight from Sioux Falls to Seattle takes 5h 46m
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 46m.

  • 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
5.7
3,030 reviews
Search Frontier flights
DeltaPriceFrom $229Free CancellationRating
7.9
8,294 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.1
11,466 reviews
Search American Airlines flights
United AirlinesPriceFrom $284Free CancellationRating
7.4
9,429 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
Redmond
Marysville
Puyallup
Cle Elum
Lakewood
Tukwila
Federal Way
Fife
Westport
Centralia
Kirkland
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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