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Cheap flights from Sioux Falls to Seattle from $96

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 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:28 pm - 12:07 pmFSD-SEA
18h 39m1 stop
Frontier Logo
8:43 pm - 6:33 pmSEA-FSD
19h 50m1 stop
$233Frontier
Find Deal
vie., oct. 24 - dom., oct. 26
Frontier Logo
2:23 pm - 12:13 pmFSD-SEA
23h 50m1 stop
Frontier Logo
1:37 pm - 1:38 pmSEA-FSD
22h 01m1 stop
$252Frontier
Find Deal
dom., nov. 9 - mié., nov. 12
American Airlines Logo
2:50 pm - 9:00 pmFSD-SEA
8h 10m1 stop
American Airlines Logo
10:32 am - 9:15 pmSEA-FSD
8h 43m1 stop
$269American Airlines
Find Deal
sáb., oct. 25 - jue., oct. 30
United Airlines Logo
8:00 am - 6:25 pmFSD-SEA
12h 25m2 stops
United Airlines Logo
12:25 pm - 8:39 pmSEA-FSD
6h 14m1 stop
$274United Airlines
Find Deal
mar., dic. 16 - jue., ene. 8
Delta Logo
5:20 am - 10:45 amFSD-SEA
7h 25m1 stop
Delta Logo
6:00 am - 3:44 pmSEA-FSD
7h 44m1 stop
$319Delta
Find Deal
vie., oct. 17 - mar., oct. 21
Delta Logo
1:35 pm - 8:20 pmFSD-SEA
8h 45m1 stop
Delta Logo
5:00 am - 2:44 pmSEA-FSD
7h 44m1 stop
$324Delta
Find Deal
sáb., oct. 25 - dom., nov. 2
United Airlines Logo
11:52 am - 5:53 pmFSD-SEA
8h 01m1 stop
United Airlines Logo
3:48 pm - 11:44 pmSEA-FSD
5h 56m1 stop
$336United Airlines
Find Deal
vie., oct. 24 - lun., oct. 27
Multiple Airlines Logo
7:28 pm - 12:07 pmFSD-SEA
18h 39m1 stop
Multiple Airlines Logo
1:02 pm - 7:56 pmSEA-FSD
28h 54m2 stops
$338Multiple Airlines
Find Deal
vie., oct. 17 - mar., oct. 21
Multiple Airlines Logo
1:29 pm - 12:07 pmFSD-SEA
24h 38m2 stops
Multiple Airlines Logo
8:43 pm - 1:38 pmSEA-FSD
14h 55m1 stop
$346Multiple Airlines
Find Deal
mar., oct. 21 - sáb., oct. 25
American Airlines Logo
5:25 pm - 12:27 amFSD-SEA
9h 02m1 stop
American Airlines Logo
12:34 am - 12:01 pmSEA-FSD
9h 27m1 stop
$354American Airlines
Find Deal
mar., oct. 21 - vie., oct. 24

Frontier flights from Sioux Falls to Seattle

Our best Frontier deals on Sioux Falls to Seattle flight tickets
Frontier
Oct 24
FSD7:28 pmSioux Falls Joe Foss Field
18h 39m
1 stop
SEA12:07 pmSeattle/Tacoma Intl
Oct 26
SEA8:43 pmSeattle/Tacoma Intl
19h 50m
1 stop
FSD6:33 pmSioux Falls Joe Foss Field
$233
Find similar
Frontier
Nov 9
FSD2:23 pmSioux Falls Joe Foss Field
23h 50m
1 stop
SEA12:13 pmSeattle/Tacoma Intl
Nov 12
SEA1:37 pmSeattle/Tacoma Intl
22h 01m
1 stop
FSD1:38 pmSioux Falls Joe Foss Field
$252
Find similar
Frontier
Nov 9
FSD2:23 pmSioux Falls Joe Foss Field
25h 14m
2 stops
SEA1:37 pmSeattle/Tacoma Intl
Nov 12
SEA1:37 pmSeattle/Tacoma Intl
22h 01m
1 stop
FSD1:38 pmSioux Falls Joe Foss Field
$268
Find similar

American Airlines flights from Sioux Falls to Seattle

Our best American Airlines deals on Sioux Falls to Seattle flight tickets
American Airlines
Oct 25
FSD2:50 pmSioux Falls Joe Foss Field
8h 10m
1 stop
SEA9:00 pmSeattle/Tacoma Intl
Oct 30
SEA10:32 amSeattle/Tacoma Intl
8h 43m
1 stop
FSD9:15 pmSioux Falls Joe Foss Field
$269
Find similar
American Airlines
Oct 21
FSD5:25 pmSioux Falls Joe Foss Field
9h 02m
1 stop
SEA12:27 amSeattle/Tacoma Intl
Oct 24
SEA12:34 amSeattle/Tacoma Intl
9h 27m
1 stop
FSD12:01 pmSioux Falls Joe Foss Field
$354
Find similar
American Airlines
Oct 17
FSD1:32 pmSioux Falls Joe Foss Field
10h 14m
1 stop
SEA9:46 pmSeattle/Tacoma Intl
Oct 20
SEA12:34 amSeattle/Tacoma Intl
9h 27m
1 stop
FSD12:01 pmSioux Falls Joe Foss Field
$423
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 octubre 2, 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

vie. 10/24

7:28 pm-12:07 pm

1 stop18h 39m

Seattle/Tacoma Intl

dom. 10/26

8:43 pm-6:33 pm

1 stop19h 50m

$233

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

dom. 11/9

2:23 pm-12:13 pm

1 stop23h 50m

Seattle/Tacoma Intl

mié. 11/12

1:37 pm-1:38 pm

1 stop22h 01m

$252

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

sáb. 10/25

2:50 pm-9:00 pm

1 stop8h 10m

Seattle/Tacoma Intl

jue. 10/30

10:32 am-9:15 pm

1 stop8h 43m

$269

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

mar. 12/16

8:00 am-6:25 pm

2 stops12h 25m

Seattle/Tacoma Intl

jue. 1/8

12:25 pm-8:39 pm

1 stop6h 14m

$274

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

vie. 10/17

5:20 am-10:45 am

1 stop7h 25m

Seattle/Tacoma Intl

mar. 10/21

6:00 am-3:44 pm

1 stop7h 44m

$319

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

sáb. 10/25

1:35 pm-8:20 pm

1 stop8h 45m

Seattle/Tacoma Intl

dom. 11/2

5:00 am-2:44 pm

1 stop7h 44m

$324

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

vie. 10/24

11:52 am-5:53 pm

1 stop8h 01m

Seattle/Tacoma Intl

lun. 10/27

3:48 pm-11:44 pm

1 stop5h 56m

$336

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

vie. 10/17

7:28 pm-12:07 pm

1 stop18h 39m

Seattle/Tacoma Intl

mar. 10/21

1:02 pm-7:56 pm

2 stops28h 54m

$338

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

mar. 10/21

1:29 pm-12:07 pm

2 stops24h 38m

Seattle/Tacoma Intl

sáb. 10/25

8:43 pm-1:38 pm

1 stop14h 55m

$346

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

mar. 10/21

5:25 pm-12:27 am

1 stop9h 02m

Seattle/Tacoma Intl

vie. 10/24

12:34 am-12:01 pm

1 stop9h 27m

$354

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 $330.

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 $437 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 $288 on momondo.

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

As of October 2025, prices for Sioux Falls to Seattle flights are approximately 82% 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 $183Free CancellationRating
5.8
3,155 reviews
Search Frontier flights
DeltaPriceFrom $208Free CancellationRating
7.9
7,962 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $285Free CancellationRating
7.4
8,933 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
Federal Way
Tukwila
Kirkland
Fife
Centralia
Shoreline
Lakewood
Cle Elum
Redmond
Westport

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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