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Cheap flights from Seattle to South Dakota from $221

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to South Dakota departing on 2/17. 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 Seattle to South Dakota

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:00 am - 1:13 pm
SEA
-
RAP
7h 13m
1 stop
United Airlines Logo
2:52 pm - 9:12 pm
RAP
-
SEA
7h 20m
1 stop
$279United Airlines
Fri, Feb 27 - Tue, Mar 3
Delta Logo
6:10 am - 3:44 pm
SEA
-
RAP
8h 34m
1 stop
Delta Logo
6:00 am - 2:52 pm
RAP
-
SEA
9h 52m
2 stops
$284Delta
Tue, Mar 3 - Tue, Mar 10
American Airlines Logo
12:59 am - 12:41 pm
SEA
-
FSD
9h 42m
1 stop
American Airlines Logo
5:21 pm - 12:55 am
FSD
-
SEA
9h 34m
1 stop
$289American Airlines
Tue, Mar 10 - Wed, Mar 18
Delta Logo
8:30 am - 10:27 pm
SEA
-
RAP
12h 57m
2 stops
Delta Logo
6:00 am - 2:52 pm
RAP
-
SEA
9h 52m
2 stops
$289Delta
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
9:23 pm - 11:54 am
SEA
-
FSD
12h 31m
1 stop
Multiple Airlines Logo
2:42 pm - 6:18 pm
FSD
-
SEA
29h 36m
2 stops
$290Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
3:48 pm - 11:44 pm
SEA
-
FSD
5h 56m
1 stop
United Airlines Logo
1:43 pm - 11:27 pm
FSD
-
SEA
11h 44m
2 stops
$294United Airlines
Sat, Apr 11 - Tue, Apr 14
American Airlines Logo
12:59 am - 12:41 pm
SEA
-
FSD
9h 42m
1 stop
American Airlines Logo
5:19 pm - 11:07 pm
FSD
-
SEA
7h 48m
1 stop
$314American Airlines
Wed, Feb 25 - Sat, Feb 28
United Airlines Logo
5:00 am - 1:13 pm
SEA
-
RAP
7h 13m
1 stop
United Airlines Logo
2:52 pm - 11:30 pm
RAP
-
SEA
9h 38m
2 stops
$329United Airlines
Fri, Feb 27 - Tue, Mar 3
United Airlines Logo
5:00 am - 1:13 pm
SEA
-
RAP
7h 13m
1 stop
United Airlines Logo
5:00 am - 9:49 am
RAP
-
SEA
5h 49m
1 stop
$332United Airlines
Sat, Mar 14 - Tue, Mar 17
Alaska Airlines Logo
12:29 am - 11:42 am
SEA
-
FSD
9h 13m
1 stop
Alaska Airlines Logo
3:21 pm - 11:29 pm
FSD
-
SEA
10h 08m
1 stop
$369Alaska Airlines
Thu, Apr 23 - Sat, Apr 25

United Airlines flights from Seattle to South Dakota

Our best United Airlines deals on Seattle to South Dakota flight tickets
United Airlines
Feb 27
SEA5:00 amSeattle/Tacoma Intl
7h 13m
1 stop
RAP1:13 pmRapid City
Mar 3
RAP2:52 pmRapid City
7h 20m
1 stop
SEA9:12 pmSeattle/Tacoma Intl
$279
United Airlines
Apr 11
SEA3:48 pmSeattle/Tacoma Intl
5h 56m
1 stop
FSD11:44 pmSioux Falls Joe Foss Field
Apr 14
FSD1:43 pmSioux Falls Joe Foss Field
11h 44m
2 stops
SEA11:27 pmSeattle/Tacoma Intl
$294
United Airlines
Feb 27
SEA5:00 amSeattle/Tacoma Intl
7h 13m
1 stop
RAP1:13 pmRapid City
Mar 3
RAP2:52 pmRapid City
9h 38m
2 stops
SEA11:30 pmSeattle/Tacoma Intl
$329

American Airlines flights from Seattle to South Dakota

Our best American Airlines deals on Seattle to South Dakota flight tickets
American Airlines
Mar 10
SEA12:59 amSeattle/Tacoma Intl
9h 42m
1 stop
FSD12:41 pmSioux Falls Joe Foss Field
Mar 18
FSD5:21 pmSioux Falls Joe Foss Field
9h 34m
1 stop
SEA12:55 amSeattle/Tacoma Intl
$289
American Airlines
Feb 25
SEA12:59 amSeattle/Tacoma Intl
9h 42m
1 stop
FSD12:41 pmSioux Falls Joe Foss Field
Feb 28
FSD5:19 pmSioux Falls Joe Foss Field
7h 48m
1 stop
SEA11:07 pmSeattle/Tacoma Intl
$314
American Airlines
Feb 25
SEA12:07 amSeattle/Tacoma Intl
11h 29m
1 stop
FSD1:36 pmSioux Falls Joe Foss Field
Mar 2
FSD2:08 pmSioux Falls Joe Foss Field
12h 16m
1 stop
SEA12:24 amSeattle/Tacoma Intl
$395

momondo Fare Finder

 
Customize your flight search to find flights from Seattle 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 2, 2026.
Use the filters below to find and compare flights from Seattle to South Dakota that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

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

2:52 pm-9:12 pm

1 stop7h 20m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 3/3

6:10 am-3:44 pm

1 stop8h 34m

Rapid City

Tue 3/10

6:00 am-2:52 pm

2 stops9h 52m

$284

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

5:21 pm-12:55 am

1 stop9h 34m

$289

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 3/3

8:30 am-10:27 pm

2 stops12h 57m

Rapid City

Tue 3/10

6:00 am-2:52 pm

2 stops9h 52m

$289

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Thu 2/26

9:23 pm-11:54 am

1 stop12h 31m

Sioux Falls Joe Foss Field

Mon 3/2

2:42 pm-6:18 pm

2 stops29h 36m

$290

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Sat 4/11

3:48 pm-11:44 pm

1 stop5h 56m

Sioux Falls Joe Foss Field

Tue 4/14

1:43 pm-11:27 pm

2 stops11h 44m

$294

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Wed 2/25

12:59 am-12:41 pm

1 stop9h 42m

Sioux Falls Joe Foss Field

Sat 2/28

5:19 pm-11:07 pm

1 stop7h 48m

$314

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

2:52 pm-11:30 pm

2 stops9h 38m

$329

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 3/14

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Tue 3/17

5:00 am-9:49 am

1 stop5h 49m

$332

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Thu 4/23

12:29 am-11:42 am

1 stop9h 13m

Sioux Falls Joe Foss Field

Sat 4/25

3:21 pm-11:29 pm

1 stop10h 08m

$369

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 Seattle 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 Seattle, 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 Seattle 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 Seattle for as low as $331 on momondo.

Can stopping save me money on Seattle to South Dakota flights?

You could potentially save up to 33% on your flight if you consider stops on a Seattle to South Dakota flight.

Cheap Seattle to South Dakota flight deals and tips

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

Fastest flight time

5h 39m

Direct flights

None
The fastest flight from Seattle to South Dakota takes 5h 39m
There are no direct flights from Seattle to South Dakota. There are no popular flight routes from Seattle to South Dakota.
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to South Dakota?

    Prices for flights from Seattle/Tacoma Intl Airport to South Dakota refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to South Dakota?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to South Dakota?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to South Dakota.

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

    The necessary travel and health documents for your South Dakota 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.

Best airlines flying from Seattle to South Dakota

Compare and see reviews for airlines that fly from Seattle to South Dakota with momondo
Airline
Rating
Free Cancellation
Price
Sun Country AirPriceFrom $137Free CancellationRating
6.9
343 reviews
Search Sun Country Air flights
FrontierPriceFrom $188Free CancellationRating
5.7
3,050 reviews
Search Frontier flights
DeltaPriceFrom $209Free CancellationRating
7.9
8,129 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,211 reviews
Search American Airlines flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
9,226 reviews
Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Seattle to South Dakota flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to South Dakota that suits you.

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

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

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

Once you have performed a search for Seattle to South Dakota flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to South Dakota from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your South Dakota trip

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