What is the cheapest airline that flies from Seattle/Tacoma Intl to South Dakota?

Delta, United Airlines, and Frontier are the most popular carriers operating from Seattle/Tacoma Intl to South Dakota

What airlines fly to South Dakota?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to South Dakota from Seattle according to our data. United Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 5 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 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?

There are 5 operators available for flights from Seattle/Tacoma Intl Airport to South Dakota as of April 2026.

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.

$92 Cheap Flights from Seattle to South Dakota in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to South Dakota

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:12 pm - 7:21 pm

SEA

FSD

22h 09m

1 stop

8:06 pm - 9:27 am

FSD

SEA

15h 21m

1 stop

$207Frontier

Sun, Apr 19 - Mon, Apr 27

7:12 pm - 7:21 pm

SEA

FSD

22h 09m

1 stop

8:06 pm - 9:27 am

FSD

SEA

15h 21m

1 stop

$217Frontier

Sun, Apr 19 - Mon, Apr 27

7:12 pm - 7:21 pm

SEA

FSD

22h 09m

1 stop

8:53 pm - 9:27 am

FSD

SEA

38h 34m

2 stops

$274Multiple Airlines

Sun, Apr 19 - Mon, Apr 27

6:00 am - 4:27 pm

SEA

RAP

9h 27m

1 stop

4:57 pm - 12:44 am

RAP

SEA

8h 47m

1 stop

$319American Airlines

Sat, Apr 25 - Fri, May 1

5:00 am - 1:08 pm

SEA

RAP

7h 08m

1 stop

4:13 pm - 9:06 pm

RAP

SEA

5h 53m

1 stop

$339United Airlines

Wed, Apr 29 - Sat, May 2

8:45 am - 7:02 pm

SEA

RAP

9h 17m

2 stops

5:20 am - 9:46 am

RAP

SEA

5h 26m

1 stop

$344United Airlines

Wed, Apr 22 - Sat, Apr 25

2:57 pm - 11:59 pm

SEA

FSD

7h 02m

1 stop

1:41 pm - 7:36 pm

FSD

SEA

7h 55m

1 stop

$349American Airlines

Fri, Apr 24 - Sat, Apr 25

10:11 pm - 10:45 am

SEA

FSD

58h 34m

2 stops

8:06 pm - 9:49 am

FSD

SEA

15h 43m

1 stop

$368Multiple Airlines

Mon, Apr 27 - Mon, May 4

6:05 am - 2:11 pm

SEA

ABR

6h 06m

1 stop

2:56 pm - 8:30 pm

ABR

SEA

7h 34m

1 stop

$911Delta

Wed, Jul 1 - Tue, Jul 7

6:05 am - 2:11 pm

SEA

ABR

6h 06m

1 stop

2:56 pm - 8:30 pm

ABR

SEA

7h 34m

1 stop

$921Delta

Wed, Jul 1 - Tue, Jul 7

American Airlines flights from Seattle to South Dakota

Our best American Airlines deals on Seattle to South Dakota flight tickets

American Airlines

Apr 25

SEA6:00 amSeattle/Tacoma Intl

9h 27m

1 stop

RAP4:27 pmRapid City

May 1

RAP4:57 pmRapid City

8h 47m

1 stop

SEA12:44 amSeattle/Tacoma Intl

$319

American Airlines

Apr 24

SEA2:57 pmSeattle/Tacoma Intl

7h 02m

1 stop

FSD11:59 pmSioux Falls Joe Foss Field

Apr 25

FSD1:41 pmSioux Falls Joe Foss Field

7h 55m

1 stop

SEA7:36 pmSeattle/Tacoma Intl

$349

American Airlines

Apr 12

SEA12:59 amSeattle/Tacoma Intl

9h 57m

1 stop

FSD12:56 pmSioux Falls Joe Foss Field

Apr 23

FSD3:17 pmSioux Falls Joe Foss Field

9h 21m

1 stop

SEA10:38 pmSeattle/Tacoma Intl

$374

United Airlines flights from Seattle to South Dakota

Our best United Airlines deals on Seattle to South Dakota flight tickets

United Airlines

Apr 29

SEA5:00 amSeattle/Tacoma Intl

7h 08m

1 stop

RAP1:08 pmRapid City

May 6

RAP5:35 pmRapid City

6h 24m

1 stop

SEA10:59 pmSeattle/Tacoma Intl

$339

United Airlines

Apr 22

SEA8:45 amSeattle/Tacoma Intl

9h 17m

2 stops

RAP7:02 pmRapid City

Apr 25

RAP5:20 amRapid City

5h 26m

1 stop

SEA9:46 amSeattle/Tacoma Intl

$344

United Airlines

Apr 29

SEA3:48 pmSeattle/Tacoma Intl

5h 32m

1 stop

RAP10:20 pmRapid City

May 2

RAP5:20 amRapid City

10h 16m

2 stops

SEA2:36 pmSeattle/Tacoma Intl

$349

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Sun 4/19

7:12 pm-7:21 pm

1 stop22h 09m

Sioux Falls Joe Foss Field

Mon 4/27

8:06 pm-9:27 am

1 stop15h 21m

$207

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Sun 4/19

7:12 pm-7:21 pm

1 stop22h 09m

Sioux Falls Joe Foss Field

Mon 4/27

8:06 pm-9:27 am

1 stop15h 21m

$217

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Sun 4/19

7:12 pm-7:21 pm

1 stop22h 09m

Sioux Falls Joe Foss Field

Mon 4/27

8:53 pm-9:27 am

2 stops38h 34m

$274

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 4/25

6:00 am-4:27 pm

1 stop9h 27m

Rapid City

Fri 5/1

4:57 pm-12:44 am

1 stop8h 47m

$319

Quickest round-trip

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 4/29

5:00 am-1:08 pm

1 stop7h 08m

Rapid City

Sat 5/2

4:13 pm-9:06 pm

1 stop5h 53m

$339

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 4/22

8:45 am-7:02 pm

2 stops9h 17m

Rapid City

Sat 4/25

5:20 am-9:46 am

1 stop5h 26m

$344

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Fri 4/24

2:57 pm-11:59 pm

1 stop7h 02m

Sioux Falls Joe Foss Field

Sat 4/25

1:41 pm-7:36 pm

1 stop7h 55m

$349

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Mon 4/27

10:11 pm-10:45 am

2 stops58h 34m

Sioux Falls Joe Foss Field

Mon 5/4

8:06 pm-9:49 am

1 stop15h 43m

$368

SeattleAberdeen

SEA - ABR

SEAABR

Seattle/Tacoma Intl

Wed 7/1

6:05 am-2:11 pm

1 stop6h 06m

Aberdeen

Tue 7/7

2:56 pm-8:30 pm

1 stop7h 34m

$911

SeattleAberdeen

SEA - ABR

SEAABR

Seattle/Tacoma Intl

Wed 7/1

6:05 am-2:11 pm

1 stop6h 06m

Aberdeen

Tue 7/7

2:56 pm-8:30 pm

1 stop7h 34m

$921

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 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

Prices

Airlines

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 $278. 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 $444 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 $322 on momondo.

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

You could potentially save up to 19% 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 30m
Direct flights	None

The fastest flight from Seattle to South Dakota takes 5h 30m

There are no direct flights from Seattle to South Dakota. There are no popular flight routes from Seattle to South Dakota.

Search flight deals

Frequently asked questions about flying from Seattle to South Dakota

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?
There are 5 operators available for flights from Seattle/Tacoma Intl Airport to South Dakota as of April 2026.
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 Air	PriceFrom $137	Free Cancellation	Rating 6.8 338 reviews	Search Sun Country Air flights
Frontier	PriceFrom $188	Free Cancellation	Rating 5.7 3,003 reviews	Search Frontier flights
Delta	PriceFrom $190	Free Cancellation	Rating 7.9 8,371 reviews	Search Delta flights
American Airlines	PriceFrom $268	Free Cancellation	Rating 7.1 11,548 reviews	Search American Airlines flights
United Airlines	PriceFrom $286	Free Cancellation	Rating 7.4 9,532 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.