How long is the flight from State of Washington to South Dakota?

The flight from State of Washington to South Dakota depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Seattle (a popular airport in State of Washington) to Sioux Falls (the most popular airport in South Dakota), then the flight time is 5h 13m on average. If you fly from Spokane (another popular airport in State of Washington) to Sioux Falls, then the average flight time is 5h 34m.

What is the cheapest airline that flies from Washington to South Dakota?

Allegiant Air, United Airlines, and Delta are the most popular carriers operating from Washington to South Dakota

What airlines fly to South Dakota?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to South Dakota from State of Washington according to our data. United Airlines is the first choice among our users, with 73% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 3 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington to South Dakota?

Prices for flights from Washington to South Dakota are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to South Dakota?

As of September 2026, there are 3 operators available to choose from for flights from Washington to South Dakota.

How old do you have to be to fly from Washington to South Dakota?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to South Dakota.

What documentation or ID do you need to fly to South Dakota?

The travel and health documents you'll need for your trip to South Dakota may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Dakota. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$188 Cheap Flights from Washington to South Dakota in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to South Dakota

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:14 pm - 10:58 amSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

20h 44m1 stop Las Vegas Harry Reid Intl

10:32 pm - 6:54 pmFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

46h 22m2 stops Las Vegas Harry Reid Intl Los Angeles

$322Multiple Airlines

Wed, Nov 11 - Mon, Nov 16

2:45 pm - 11:56 pmGEG Spokane-FSD Sioux Falls Joe Foss Field

7h 11m1 stop Phoenix Sky Harbor Intl

6:00 am - 12:01 pmFSD Sioux Falls Joe Foss Field-GEG Spokane

8h 01m1 stop Dallas/Fort Worth

$349American Airlines

Thu, Oct 29 - Sun, Nov 1

1:38 pm - 8:20 pmGEG Spokane-FSD Sioux Falls Joe Foss Field

4h 42m1 stop Denver Intl

5:06 pm - 9:11 pmFSD Sioux Falls Joe Foss Field-GEG Spokane

6h 05m1 stop Denver Intl

$349United Airlines

Wed, Oct 21 - Wed, Oct 28

1:45 pm - 8:46 pmGEG Spokane-FSD Sioux Falls Joe Foss Field

5h 01m1 stop Denver Intl

5:00 pm - 9:09 pmFSD Sioux Falls Joe Foss Field-GEG Spokane

6h 09m1 stop Denver Intl

$349United Airlines

Thu, Jan 28 - Mon, Feb 1

1:54 pm - 11:22 pmGEG Spokane-FSD Sioux Falls Joe Foss Field

7h 28m1 stop Minneapolis St Paul

8:30 am - 12:15 pmFSD Sioux Falls Joe Foss Field-GEG Spokane

5h 45m1 stop Minneapolis St Paul

$349Delta

Fri, Nov 6 - Sun, Nov 8

6:25 am - 3:58 pmGEG Spokane-FSD Sioux Falls Joe Foss Field

7h 33m1 stop Minneapolis St Paul

8:31 am - 12:06 pmFSD Sioux Falls Joe Foss Field-GEG Spokane

5h 35m1 stop Minneapolis St Paul

$349Delta

Sat, Nov 14 - Thu, Nov 26

2:45 pm - 11:56 pmGEG Spokane-FSD Sioux Falls Joe Foss Field

7h 11m1 stop Phoenix Sky Harbor Intl

6:00 am - 12:01 pmFSD Sioux Falls Joe Foss Field-GEG Spokane

8h 01m1 stop Dallas/Fort Worth

$349American Airlines

Thu, Oct 29 - Mon, Nov 2

12:25 am - 9:54 amSEA Seattle/Tacoma Intl-RAP Rapid City

8h 29m1 stop Dallas/Fort Worth

6:00 am - 2:52 pmRAP Rapid City-SEA Seattle/Tacoma Intl

9h 52m1 stop Dallas/Fort Worth

$349American Airlines

Wed, Oct 21 - Thu, Oct 29

12:14 pm - 10:58 amSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

20h 44m1 stop Las Vegas Harry Reid Intl

10:32 pm - 3:12 pmFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

42h 40m2 stops Las Vegas Harry Reid Intl Denver Intl

$386Multiple Airlines

Wed, Nov 11 - Mon, Nov 16

8:09 pm - 10:56 amSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

36h 47m2 stops Los Angeles Las Vegas Harry Reid Intl

1:56 pm - 9:45 amFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

21h 49m1 stop Las Vegas Harry Reid Intl

$433Multiple Airlines

Tue, Oct 27 - Sun, Nov 1

Cheap last minute flights

Enter your travel dates to find the best prices.

12:05 pm - 9:48 pmSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

7h 43m1 stop Dallas/Fort Worth

12:53 pm - 7:44 pmFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

8h 51m1 stop Dallas/Fort Worth

$464American Airlines

Thu, Oct 1 - Sat, Oct 10

2:30 pm - 10:51 pmSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

6h 21m1 stop Minneapolis St Paul

1:00 pm - 4:58 pmFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

5h 58m1 stop Minneapolis St Paul

$464Delta

Sun, Oct 4 - Tue, Oct 13

2:30 pm - 10:51 pmSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

6h 21m1 stop Minneapolis St Paul

5:10 am - 10:59 amFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

7h 49m1 stop Minneapolis St Paul

$464Delta

Sun, Oct 4 - Wed, Oct 14

12:43 pm - 8:20 pmSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

5h 37m1 stop Denver Intl

9:42 am - 6:44 pmFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

11h 02m2 stops Denver Intl San Francisco

$469United Airlines

Thu, Oct 1 - Sat, Oct 10

5:00 am - 12:26 pmSEA Seattle/Tacoma Intl-RAP Rapid City

6h 26m1 stop Denver Intl

8:45 am - 4:03 pmRAP Rapid City-SEA Seattle/Tacoma Intl

8h 18m1 stop Denver Intl

$490United Airlines

Wed, Sep 30 - Sun, Oct 4

7:51 am - 5:20 pmSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

7h 29m1 stop Dallas/Fort Worth

8:05 am - 1:46 pmFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

7h 41m1 stop Phoenix Sky Harbor Intl

$529American Airlines

Wed, Sep 30 - Sun, Oct 4

12:05 pm - 9:48 pmSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

7h 43m1 stop Dallas/Fort Worth

8:05 am - 1:46 pmFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

7h 41m1 stop Phoenix Sky Harbor Intl

$529American Airlines

Thu, Oct 1 - Sun, Oct 4

2:30 pm - 10:51 pmSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

6h 21m1 stop Minneapolis St Paul

5:05 am - 10:39 amFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

7h 34m1 stop Minneapolis St Paul

$539Delta

Thu, Oct 1 - Sun, Oct 4

10:53 am - 11:00 amSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

22h 07m2 stops Ontario Las Vegas Harry Reid Intl

12:16 pm - 9:42 amFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

23h 26m1 stop Las Vegas Harry Reid Intl

$589Multiple Airlines

Thu, Oct 1 - Sun, Oct 4

4:27 pm - 8:07 pmSEA Seattle/Tacoma Intl-FSD Sioux Falls Joe Foss Field

25h 40m1 stop Denver Intl

8:44 pm - 3:12 pmFSD Sioux Falls Joe Foss Field-SEA Seattle/Tacoma Intl

44h 28m2 stops Nashville Intl Denver Intl

$675Multiple Airlines

Sun, Oct 4 - Mon, Oct 12

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American Airlines flights from State of Washington to South Dakota

Our best American Airlines deals on State of Washington to South Dakota flight tickets

American Airlines

Oct 29

GEG2:45 pmSpokane

7h 11m

1 stop

FSD11:56 pmSioux Falls Joe Foss Field

Nov 1

FSD6:00 amSioux Falls Joe Foss Field

8h 01m

1 stop

GEG12:01 pmSpokane

$349

American Airlines

Oct 23

GEG2:45 pmSpokane

7h 11m

1 stop

FSD11:56 pmSioux Falls Joe Foss Field

Nov 10

FSD1:08 pmSioux Falls Joe Foss Field

9h 32m

1 stop

GEG8:40 pmSpokane

$391

American Airlines

Oct 21

SEA10:26 amSeattle/Tacoma Intl

10h 30m

1 stop

RAP9:56 pmRapid City

Oct 28

RAP10:24 amRapid City

10h 20m

1 stop

SEA7:44 pmSeattle/Tacoma Intl

$419

Delta flights from State of Washington to South Dakota

Our best Delta deals on State of Washington to South Dakota flight tickets

Delta

Oct 22

SEA1:42 pmSeattle/Tacoma Intl

7h 48m

1 stop

RAP10:30 pmRapid City

Oct 29

RAP6:39 amRapid City

6h 51m

1 stop

SEA12:30 pmSeattle/Tacoma Intl

$349

Delta

Oct 23

GEG1:25 pmSpokane

7h 57m

2 stops

FSD11:22 pmSioux Falls Joe Foss Field

Nov 10

FSD8:31 amSioux Falls Joe Foss Field

5h 35m

1 stop

GEG12:06 pmSpokane

$354

Delta

Oct 23

GEG1:25 pmSpokane

7h 57m

2 stops

FSD11:22 pmSioux Falls Joe Foss Field

Nov 10

FSD5:00 pmSioux Falls Joe Foss Field

8h 55m

2 stops

GEG11:55 pmSpokane

$359

momondo Fare Finder

Use the filters below to find and compare flights from Washington to South Dakota that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSioux Falls

SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field

SEAFSD

Seattle/Tacoma Intl

Wed 11/11

12:14 pm-10:58 am

1 stop20h 44m

Sioux Falls Joe Foss Field

Mon 11/16

10:32 pm-6:54 pm

2 stops46h 22m

$322

SpokaneSioux Falls

GEG Spokane - FSD Sioux Falls Joe Foss Field

GEGFSD

Spokane

Thu 10/29

2:45 pm-11:56 pm

1 stop7h 11m

Sioux Falls Joe Foss Field

Sun 11/1

6:00 am-12:01 pm

1 stop8h 01m

$349

Quickest round-trip

SpokaneSioux Falls

GEG Spokane - FSD Sioux Falls Joe Foss Field

GEGFSD

Spokane

Wed 10/21

1:38 pm-8:20 pm

1 stop4h 42m

Sioux Falls Joe Foss Field

Wed 10/28

5:06 pm-9:11 pm

1 stop6h 05m

$349

SpokaneSioux Falls

GEG Spokane - FSD Sioux Falls Joe Foss Field

GEGFSD

Spokane

Thu 1/28

1:45 pm-8:46 pm

1 stop5h 01m

Sioux Falls Joe Foss Field

Mon 2/1

5:00 pm-9:09 pm

1 stop6h 09m

$349

SpokaneSioux Falls

GEG Spokane - FSD Sioux Falls Joe Foss Field

GEGFSD

Spokane

Fri 11/6

1:54 pm-11:22 pm

1 stop7h 28m

Sioux Falls Joe Foss Field

Sun 11/8

8:30 am-12:15 pm

1 stop5h 45m

$349

SpokaneSioux Falls

GEG Spokane - FSD Sioux Falls Joe Foss Field

GEGFSD

Spokane

Sat 11/14

6:25 am-3:58 pm

1 stop7h 33m

Sioux Falls Joe Foss Field

Thu 11/26

8:31 am-12:06 pm

1 stop5h 35m

$349

SpokaneSioux Falls

GEG Spokane - FSD Sioux Falls Joe Foss Field

GEGFSD

Spokane

Thu 10/29

2:45 pm-11:56 pm

1 stop7h 11m

Sioux Falls Joe Foss Field

Mon 11/2

6:00 am-12:01 pm

1 stop8h 01m

$349

SeattleRapid City

SEA Seattle/Tacoma Intl - RAP Rapid City

SEARAP

Seattle/Tacoma Intl

Wed 10/21

12:25 am-9:54 am

1 stop8h 29m

Rapid City

Thu 10/29

6:00 am-2:52 pm

1 stop9h 52m

$349

SeattleSioux Falls

SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field

SEAFSD

Seattle/Tacoma Intl

Wed 11/11

12:14 pm-10:58 am

1 stop20h 44m

Sioux Falls Joe Foss Field

Mon 11/16

10:32 pm-3:12 pm

2 stops42h 40m

$386

SeattleSioux Falls

SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field

SEAFSD

Seattle/Tacoma Intl

Tue 10/27

8:09 pm-10:56 am

2 stops36h 47m

Sioux Falls Joe Foss Field

Sun 11/1

1:56 pm-9:45 am

1 stop21h 49m

$433

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to South Dakota

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

Prices

Airlines

Other information

What is the cheapest month to fly to South Dakota?

The month of February is, on average, the cheapest month to fly to South Dakota from State of Washington, with most prices found around $379. If you aren’t able to travel to South Dakota during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $379.

Can stopping save me money on State of Washington to South Dakota flights?

You could potentially save up to 26% on your flight if you consider stops on a State of Washington to South Dakota flight.

Cheap State of Washington to South Dakota flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to South Dakota

Best Price Found	$188
Fastest flight time	4h 49m
Direct flights	None

The best one-way flight to South Dakota from State of Washington in the past 72 hours is $188. The best round-trip flight deal from State of Washington to South Dakota found on momondo in the last 72 hours is $322.

The fastest flight from State of Washington to South Dakota takes 4h 49m

There are no direct flights from State of Washington to South Dakota. There are no popular flight routes from State of Washington to South Dakota.

Search flight deals

Frequently asked questions about flying from Washington to South Dakota

When did momondo last update prices for flights from Washington to South Dakota?
Prices for flights from Washington to South Dakota are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to South Dakota?
As of September 2026, there are 3 operators available to choose from for flights from Washington to South Dakota.
How old do you have to be to fly from Washington to South Dakota?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to South Dakota.
What documentation or ID do you need to fly to South Dakota?
The travel and health documents you'll need for your trip to South Dakota may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Dakota. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to South Dakota

Compare and see reviews for airlines that fly from State of Washington to South Dakota with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $190	Free Cancellation	Rating 7.8 8,605 reviews	Search Delta flights
American Airlines	PriceFrom $268	Free Cancellation	Rating 7.0 12,097 reviews	Search American Airlines flights
United Airlines	PriceFrom $278	Free Cancellation	Rating 7.4 10,245 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to South Dakota?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to South Dakota for you.

Can I find flights from Washington to South Dakota with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington to South Dakota flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington to South Dakota?

momondo provides multiple filters to help you find the best flight to South Dakota from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington to South Dakota right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to South Dakota from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.