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Cheap flights from Washington to South Dakota from $95

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to South Dakota departing on 2/26. 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 Washington to South Dakota

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:00 am - 11:05 am
GEG
-
RAP
5h 05m
1 stop
United Airlines Logo
10:55 am - 5:26 pm
RAP
-
GEG
7h 31m
1 stop
$269United Airlines
Fri, Mar 6 - Fri, Mar 13
American Airlines Logo
11:46 am - 10:55 pm
PDX
-
FSD
9h 09m
1 stop
American Airlines Logo
1:26 pm - 10:00 pm
FSD
-
PDX
10h 34m
1 stop
$270American Airlines
Wed, Apr 1 - Sat, Apr 4
Delta Logo
2:15 pm - 10:25 pm
GEG
-
RAP
7h 10m
1 stop
Delta Logo
4:01 pm - 11:50 pm
RAP
-
GEG
8h 49m
2 stops
$274Delta
Tue, Mar 17 - Tue, Mar 24
Delta Logo
6:45 am - 3:44 pm
GEG
-
RAP
7h 59m
1 stop
Delta Logo
6:00 am - 1:08 pm
RAP
-
GEG
8h 08m
1 stop
$279Delta
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:00 am - 1:13 pm
PSC
-
RAP
7h 13m
1 stop
United Airlines Logo
2:52 pm - 8:50 pm
RAP
-
PSC
6h 58m
1 stop
$279United Airlines
Thu, Feb 19 - Tue, Feb 24
United Airlines Logo
5:00 am - 1:13 pm
SEA
-
RAP
7h 13m
1 stop
United Airlines Logo
5:20 am - 9:49 am
RAP
-
SEA
5h 29m
1 stop
$279United Airlines
Fri, Feb 27 - Tue, Mar 3
Delta Logo
2:15 pm - 11:04 pm
GEG
-
FSD
6h 49m
1 stop
Delta Logo
8:00 am - 1:10 pm
FSD
-
GEG
7h 10m
1 stop
$279Delta
Fri, Mar 13 - Sun, Mar 22
Delta Logo
1:20 pm - 10:27 pm
GEG
-
RAP
8h 07m
2 stops
Delta Logo
6:00 am - 1:08 pm
RAP
-
GEG
8h 08m
1 stop
$284Delta
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
4:15 pm - 11:44 pm
PDX
-
FSD
5h 29m
1 stop
United Airlines Logo
6:35 pm - 11:58 pm
FSD
-
PDX
7h 23m
1 stop
$289United Airlines
Thu, Apr 2 - Mon, Apr 6
American Airlines Logo
12:59 am - 12:41 pm
SEA
-
FSD
9h 42m
1 stop
American Airlines Logo
6:50 am - 12:47 pm
FSD
-
SEA
7h 57m
1 stop
$314American Airlines
Tue, Mar 10 - Wed, Mar 18

United Airlines flights from State of Washington to South Dakota

Our best United Airlines deals on State of Washington to South Dakota flight tickets
United Airlines
Mar 6
GEG5:00 amSpokane
5h 05m
1 stop
RAP11:05 amRapid City
Mar 13
RAP10:55 amRapid City
7h 31m
1 stop
GEG5:26 pmSpokane
$269
United Airlines
Feb 19
PSC5:00 amPasco Tri Cities
7h 13m
1 stop
RAP1:13 pmRapid City
Feb 24
RAP2:52 pmRapid City
6h 58m
1 stop
PSC8:50 pmPasco Tri Cities
$279
United Airlines
Apr 2
PDX4:15 pmPortland
5h 29m
1 stop
FSD11:44 pmSioux Falls Joe Foss Field
Apr 6
FSD6:35 pmSioux Falls Joe Foss Field
7h 23m
1 stop
PDX11:58 pmPortland
$289

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
Apr 1
PDX11:46 amPortland
9h 09m
1 stop
FSD10:55 pmSioux Falls Joe Foss Field
Apr 4
FSD1:26 pmSioux Falls Joe Foss Field
10h 34m
1 stop
PDX10:00 pmPortland
$270
American Airlines
Mar 10
SEA12:59 amSeattle/Tacoma Intl
9h 42m
1 stop
FSD12:41 pmSioux Falls Joe Foss Field
Mar 18
FSD6:50 amSioux Falls Joe Foss Field
7h 57m
1 stop
SEA12:47 pmSeattle/Tacoma Intl
$314
American Airlines
Feb 27
SEA5:37 amSeattle/Tacoma Intl
7h 14m
1 stop
RAP1:51 pmRapid City
Mar 3
RAP2:21 pmRapid City
9h 46m
1 stop
SEA11:07 pmSeattle/Tacoma Intl
$349

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to South Dakota 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 February 6, 2026.
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

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Fri 3/6

5:00 am-11:05 am

1 stop5h 05m

Rapid City

Fri 3/13

10:55 am-5:26 pm

1 stop7h 31m

$269

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Wed 4/1

11:46 am-10:55 pm

1 stop9h 09m

Sioux Falls Joe Foss Field

Sat 4/4

1:26 pm-10:00 pm

1 stop10h 34m

$270

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Tue 3/17

2:15 pm-10:25 pm

1 stop7h 10m

Rapid City

Tue 3/24

4:01 pm-11:50 pm

2 stops8h 49m

$274

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Fri 2/20

6:45 am-3:44 pm

1 stop7h 59m

Rapid City

Tue 2/24

6:00 am-1:08 pm

1 stop8h 08m

$279

PascoRapid City

PSC - RAP

PSCRAP

Pasco Tri Cities

Thu 2/19

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Tue 2/24

2:52 pm-8:50 pm

1 stop6h 58m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 2/27

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Tue 3/3

5:20 am-9:49 am

1 stop5h 29m

$279

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

Fri 3/13

2:15 pm-11:04 pm

1 stop6h 49m

Sioux Falls Joe Foss Field

Sun 3/22

8:00 am-1:10 pm

1 stop7h 10m

$279

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Fri 2/20

1:20 pm-10:27 pm

2 stops8h 07m

Rapid City

Tue 2/24

6:00 am-1:08 pm

1 stop8h 08m

$284

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Thu 4/2

4:15 pm-11:44 pm

1 stop5h 29m

Sioux Falls Joe Foss Field

Mon 4/6

6:35 pm-11:58 pm

1 stop7h 23m

$289

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Tue 3/10

12:59 am-12:41 pm

1 stop9h 42m

Sioux Falls Joe Foss Field

Wed 3/18

6:50 am-12:47 pm

1 stop7h 57m

$314

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 South Dakota from

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

What is the cheapest month to fly to South Dakota?

The month of October is, on average, the cheapest month to fly to South Dakota from State of Washington, with most prices found around $273. If you aren’t able to travel to South Dakota during the month of October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $286.

How far in advance should I book a flight to South Dakota?

You are more likely to see cheaper flights to South Dakota from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to South Dakota for around $428 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South Dakota from State of Washington for as low as $331 on momondo.

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

You could potentially save up to 4% 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

Fastest flight time

4h 53m

Direct flights

None
The fastest flight from State of Washington to South Dakota takes 4h 53m
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

  • 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?

  • 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
DeltaPriceFrom $99Free CancellationRating
7.9
8,163 reviews
Search Delta flights
Sun Country AirPriceFrom $137Free CancellationRating
6.8
342 reviews
Search Sun Country Air flights
FrontierPriceFrom $188Free CancellationRating
5.7
3,054 reviews
Search Frontier flights
United AirlinesPriceFrom $252Free CancellationRating
7.4
9,245 reviews
Search United Airlines flights
American AirlinesPriceFrom $254Free CancellationRating
7.2
11,247 reviews
Search American 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.

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