Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Sioux Falls to Seattle from $146

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 8/12. 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
1 adult, Economy, 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
8:14 pm - 9:48 am
FSD
-
SEA
15h 34m
1 stop
Frontier Logo
7:41 pm - 7:19 pm
SEA
-
FSD
21h 38m
1 stop
$260Frontier
Wed, Aug 26 - Tue, Sep 1
Frontier Logo
8:14 pm - 2:04 pm
FSD
-
SEA
19h 50m
1 stop
Frontier Logo
7:41 pm - 7:19 pm
SEA
-
FSD
21h 38m
1 stop
$280Frontier
Wed, Aug 26 - Tue, Sep 1
Frontier Logo
8:08 pm - 9:17 am
FSD
-
SEA
15h 09m
1 stop
Frontier Logo
7:06 pm - 7:23 pm
SEA
-
FSD
22h 17m
1 stop
$299Frontier
Wed, Jul 22 - Thu, Jul 30
Frontier Logo
8:08 pm - 9:17 am
FSD
-
SEA
15h 09m
1 stop
Frontier Logo
7:06 pm - 7:23 pm
SEA
-
FSD
22h 17m
1 stop
$318Frontier
Mon, Jul 13 - Thu, Jul 23
Multiple Airlines Logo
3:39 pm - 11:08 am
FSD
-
SEA
21h 29m
1 stop
Multiple Airlines Logo
8:13 pm - 9:10 pm
SEA
-
FSD
22h 57m
1 stop
$328Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
2:12 pm - 8:10 pm
FSD
-
SEA
7h 58m
1 stop
American Airlines Logo
10:17 am - 9:47 pm
SEA
-
FSD
9h 30m
1 stop
$329American Airlines
Wed, Sep 2 - Thu, Sep 10
Multiple Airlines Logo
11:42 am - 9:04 am
FSD
-
SEA
23h 22m
2 stops
Multiple Airlines Logo
8:13 pm - 9:10 pm
SEA
-
FSD
22h 57m
1 stop
$333Multiple Airlines
Mon, Aug 10 - Wed, Aug 19
Multiple Airlines Logo
3:39 pm - 11:08 am
FSD
-
SEA
21h 29m
1 stop
Multiple Airlines Logo
7:41 pm - 7:19 pm
SEA
-
FSD
21h 38m
1 stop
$335Multiple Airlines
Wed, Aug 12 - Tue, Aug 18
Delta Logo
5:00 am - 8:48 am
FSD
-
SEA
5h 48m
1 stop
Delta Logo
11:59 pm - 10:20 am
SEA
-
FSD
8h 21m
1 stop
$339Delta
Wed, Aug 26 - Wed, Sep 2
Frontier Logo
8:14 pm - 2:18 pm
FSD
-
SEA
20h 04m
1 stop
Frontier Logo
7:06 pm - 7:23 pm
SEA
-
FSD
22h 17m
1 stop
$340Frontier
Fri, Jul 3 - Tue, Jul 7

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

United Airlines flights from Sioux Falls to Seattle

Our best United Airlines deals on Sioux Falls to Seattle flight tickets
United Airlines
Jul 22
FSD6:51 pmSioux Falls Joe Foss Field
6h 19m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
Aug 19
SEA2:34 pmSeattle/Tacoma Intl
7h 10m
1 stop
FSD11:44 pmSioux Falls Joe Foss Field
$374
United Airlines
Jul 22
FSD6:51 pmSioux Falls Joe Foss Field
6h 19m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
Aug 19
SEA2:34 pmSeattle/Tacoma Intl
7h 10m
1 stop
FSD11:44 pmSioux Falls Joe Foss Field
$390
United Airlines
Aug 29
FSD1:33 pmSioux Falls Joe Foss Field
9h 10m
2 stops
SEA8:43 pmSeattle/Tacoma Intl
Sep 5
SEA1:57 pmSeattle/Tacoma Intl
7h 25m
1 stop
FSD11:22 pmSioux Falls Joe Foss Field
$399

Delta flights from Sioux Falls to Seattle

Our best Delta deals on Sioux Falls to Seattle flight tickets
Delta
Aug 26
FSD5:00 amSioux Falls Joe Foss Field
5h 48m
1 stop
SEA8:48 amSeattle/Tacoma Intl
Sep 2
SEA11:59 pmSeattle/Tacoma Intl
8h 21m
1 stop
FSD10:20 amSioux Falls Joe Foss Field
$339
Delta
Aug 27
FSD4:28 pmSioux Falls Joe Foss Field
6h 22m
1 stop
SEA8:50 pmSeattle/Tacoma Intl
Sep 1
SEA2:30 pmSeattle/Tacoma Intl
6h 21m
1 stop
FSD10:51 pmSioux Falls Joe Foss Field
$359
Delta
Jul 5
FSD5:12 amSioux Falls Joe Foss Field
5h 38m
1 stop
SEA8:50 amSeattle/Tacoma Intl
Jul 11
SEA2:30 pmSeattle/Tacoma Intl
6h 22m
1 stop
FSD10:52 pmSioux Falls Joe Foss Field
$364

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 June 11, 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 8/26

8:14 pm-9:48 am

1 stop15h 34m

Seattle/Tacoma Intl

Tue 9/1

7:41 pm-7:19 pm

1 stop21h 38m

$260

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 8/26

8:14 pm-2:04 pm

1 stop19h 50m

Seattle/Tacoma Intl

Tue 9/1

7:41 pm-7:19 pm

1 stop21h 38m

$280

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 7/22

8:08 pm-9:17 am

1 stop15h 09m

Seattle/Tacoma Intl

Thu 7/30

7:06 pm-7:23 pm

1 stop22h 17m

$299

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Mon 7/13

8:08 pm-9:17 am

1 stop15h 09m

Seattle/Tacoma Intl

Thu 7/23

7:06 pm-7:23 pm

1 stop22h 17m

$318

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 8/12

3:39 pm-11:08 am

1 stop21h 29m

Seattle/Tacoma Intl

Wed 8/19

8:13 pm-9:10 pm

1 stop22h 57m

$328

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 9/2

2:12 pm-8:10 pm

1 stop7h 58m

Seattle/Tacoma Intl

Thu 9/10

10:17 am-9:47 pm

1 stop9h 30m

$329

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Mon 8/10

11:42 am-9:04 am

2 stops23h 22m

Seattle/Tacoma Intl

Wed 8/19

8:13 pm-9:10 pm

1 stop22h 57m

$333

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 8/12

3:39 pm-11:08 am

1 stop21h 29m

Seattle/Tacoma Intl

Tue 8/18

7:41 pm-7:19 pm

1 stop21h 38m

$335
Quickest round-trip

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 8/26

5:00 am-8:48 am

1 stop5h 48m

Seattle/Tacoma Intl

Wed 9/2

11:59 pm-10:20 am

1 stop8h 21m

$339

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 7/3

8:14 pm-2:18 pm

1 stop20h 04m

Seattle/Tacoma Intl

Tue 7/7

7:06 pm-7:23 pm

1 stop22h 17m

$340

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $312.

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 $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 $299 on momondo.

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

As of June 2026, prices for Sioux Falls to Seattle flights are approximately 18% 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 45m

Direct flights

None
The fastest flight from Sioux Falls to Seattle takes 5h 45m
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 45m.

  • 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
2,898 reviews
Search Frontier flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,397 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.1
11,636 reviews
Search American Airlines flights
United AirlinesPriceFrom $284Free CancellationRating
7.4
9,808 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
Lakewood
Puyallup
Tukwila
Marysville
Cle Elum
Federal Way
Fife
Centralia
Shoreline
Westport
Kirkland

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.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 7/11
Sat 7/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States