Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to South Dakota from $117

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 8/30. 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

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from Seattle to South Dakota

Cheap round-trip flights

Frontier Logo
6:12 am - 2:09 pmSEA-FSD
5h 57m1 stop
Frontier Logo
2:54 pm - 12:30 amFSD-SEA
11h 36m1 stop
$238Frontier
Find Deal
Fri, Sep 5 - Mon, Sep 8
Frontier Logo
6:41 am - 2:12 pmSEA-FSD
5h 31m1 stop
Frontier Logo
2:08 pm - 12:34 amFSD-SEA
12h 26m1 stop
$268Frontier
Find Deal
Wed, Aug 20 - Sun, Aug 24
Delta Logo
11:55 pm - 10:19 amSEA-FSD
8h 24m1 stop
Delta Logo
5:00 am - 8:48 amFSD-SEA
5h 48m1 stop
$269Delta
Find Deal
Tue, Aug 26 - Tue, Sep 2
United Airlines Logo
12:30 pm - 8:31 pmSEA-FSD
6h 01m1 stop
United Airlines Logo
8:47 am - 6:25 pmFSD-SEA
11h 38m2 stops
$274United Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4
American Airlines Logo
11:42 am - 9:50 pmSEA-RAP
9h 08m1 stop
American Airlines Logo
4:28 pm - 10:59 pmRAP-SEA
7h 31m1 stop
$274American Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
United Airlines Logo
12:43 pm - 8:39 pmSEA-RAP
6h 56m1 stop
United Airlines Logo
4:47 pm - 10:59 pmRAP-SEA
7h 12m1 stop
$289United Airlines
Find Deal
Wed, Aug 20 - Sun, Aug 24
Delta Logo
1:35 pm - 10:36 pmSEA-RAP
8h 01m1 stop
Delta Logo
6:05 am - 12:58 pmRAP-SEA
7h 53m1 stop
$309Delta
Find Deal
Fri, Oct 31 - Mon, Nov 3
American Airlines Logo
5:26 am - 5:03 pmSEA-FSD
9h 37m1 stop
American Airlines Logo
7:00 am - 2:48 pmFSD-SEA
9h 48m1 stop
$329American Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 27
Sun Country Air Logo
11:55 pm - 4:16 pmSEA-RAP
15h 21m1 stop
Sun Country Air Logo
5:46 pm - 5:28 pmRAP-SEA
24h 42m1 stop
$365Sun Country Air
Find Deal
Thu, Aug 21 - Mon, Aug 25
Sun Country Air Logo
9:07 am - 4:16 pmSEA-RAP
6h 09m1 stop
Sun Country Air Logo
5:15 pm - 8:38 pmRAP-SEA
28h 23m1 stop
$370Sun Country Air
Find Deal
Fri, Aug 22 - Fri, Aug 29

Frontier flights from Seattle to South Dakota

Our best Frontier deals on Seattle to South Dakota flight tickets
Frontier
Aug 14
SEA6:25 amSeattle/Tacoma Intl
5h 37m
1 stop
FSD2:02 pmSioux Falls Joe Foss Field
Aug 18
FSD7:32 pmSioux Falls Joe Foss Field
7h 02m
1 stop
SEA12:34 amSeattle/Tacoma Intl
$238
Find similar
Frontier
Aug 20
SEA6:41 amSeattle/Tacoma Intl
5h 31m
1 stop
FSD2:12 pmSioux Falls Joe Foss Field
Aug 24
FSD2:08 pmSioux Falls Joe Foss Field
12h 26m
1 stop
SEA12:34 amSeattle/Tacoma Intl
$268
Find similar
Frontier
Aug 29
SEA6:17 amSeattle/Tacoma Intl
5h 06m
1 stop
FSD1:23 pmSioux Falls Joe Foss Field
Aug 31
FSD2:08 pmSioux Falls Joe Foss Field
12h 26m
1 stop
SEA12:34 amSeattle/Tacoma Intl
$318
Find similar

Alaska Airlines flights from Seattle to South Dakota

Our best Alaska Airlines deals on Seattle to South Dakota flight tickets
Alaska Airlines
Sep 12
SEA12:59 amSeattle/Tacoma Intl
8h 50m
1 stop
FSD11:49 amSioux Falls Joe Foss Field
Sep 27
FSD6:00 amSioux Falls Joe Foss Field
8h 34m
1 stop
SEA12:34 pmSeattle/Tacoma Intl
$409
Find similar
Alaska Airlines
Sep 16
SEA12:59 amSeattle/Tacoma Intl
8h 50m
1 stop
FSD11:49 amSioux Falls Joe Foss Field
Oct 1
FSD6:00 amSioux Falls Joe Foss Field
8h 34m
1 stop
SEA12:34 pmSeattle/Tacoma Intl
$434
Find similar
Alaska Airlines
Sep 16
SEA12:59 amSeattle/Tacoma Intl
8h 50m
1 stop
FSD11:49 amSioux Falls Joe Foss Field
Oct 1
FSD12:19 pmSioux Falls Joe Foss Field
7h 33m
1 stop
SEA5:52 pmSeattle/Tacoma Intl
$469
Find similar

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 August 5, 2025.
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

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Fri 9/5

6:12 am-2:09 pm

1 stop5h 57m

Sioux Falls Joe Foss Field

Mon 9/8

2:54 pm-12:30 am

1 stop11h 36m

$238

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Wed 8/20

6:41 am-2:12 pm

1 stop5h 31m

Sioux Falls Joe Foss Field

Sun 8/24

2:08 pm-12:34 am

1 stop12h 26m

$268

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Tue 8/26

11:55 pm-10:19 am

1 stop8h 24m

Sioux Falls Joe Foss Field

Tue 9/2

5:00 am-8:48 am

1 stop5h 48m

$269

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Fri 10/31

12:30 pm-8:31 pm

1 stop6h 01m

Sioux Falls Joe Foss Field

Tue 11/4

8:47 am-6:25 pm

2 stops11h 38m

$274

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 10/17

11:42 am-9:50 pm

1 stop9h 08m

Rapid City

Mon 10/20

4:28 pm-10:59 pm

1 stop7h 31m

$274

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 8/20

12:43 pm-8:39 pm

1 stop6h 56m

Rapid City

Sun 8/24

4:47 pm-10:59 pm

1 stop7h 12m

$289

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 10/31

1:35 pm-10:36 pm

1 stop8h 01m

Rapid City

Mon 11/3

6:05 am-12:58 pm

1 stop7h 53m

$309

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Sat 9/13

5:26 am-5:03 pm

1 stop9h 37m

Sioux Falls Joe Foss Field

Sat 9/27

7:00 am-2:48 pm

1 stop9h 48m

$329

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 8/21

11:55 pm-4:16 pm

1 stop15h 21m

Rapid City

Mon 8/25

5:46 pm-5:28 pm

1 stop24h 42m

$365

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 8/22

9:07 am-4:16 pm

1 stop6h 09m

Rapid City

Fri 8/29

5:15 pm-8:38 pm

1 stop28h 23m

$370

Flights are sorted by cheapest round-trip flights first.

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

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 January is, on average, the cheapest month to fly to South Dakota from Seattle, with most prices found around $377. If you aren’t able to travel to South Dakota during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $383.

What is the cheapest day to depart on your flight to South Dakota?

The cheapest day to depart from Seattle to South Dakota is on a Saturday. Travelers who choose to depart for South Dakota on a Saturday will often find tickets for as low as $507. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $643. These prices are subject to change though, so be sure to set up a Price Alert for flights to South Dakota.

What is the cheapest time of day to depart on your flight to South Dakota?

The cheapest time of day to fly to South Dakota is in the evening when flights can be purchased for as low as $318. In the afternoon is when there is more demand to fly to South Dakota, so prices are often more expensive at around $703 per ticket.

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 $479 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 $340 on momondo.

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

Best Price Found

$117

Fastest flight time

4h 53m

Direct flights

None

Airports in South Dakota

3 airports
The best one-way flight to South Dakota from Seattle in the past 72 hours is $117. The best round-trip flight deal from Seattle to South Dakota found on momondo in the last 72 hours is $238.
The fastest flight from Seattle to South Dakota takes 4h 53m
There are no direct flights from Seattle to South Dakota. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - Sioux Falls Joe Foss Field Airport, Seattle/Tacoma Intl Airport - Rapid City Airport and Seattle/Tacoma Intl Airport - Aberdeen Airport.
There are 3 airports near South Dakota: Rapid City (RAP), Aberdeen (ABR), Sioux Falls Joe Foss Field (FSD)
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
FrontierPriceFrom $128Free CancellationRating
5.8
3,232 reviews
Search Frontier flights
Sun Country AirPriceFrom $137Free CancellationRating
6.9
334 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
8.0
7,985 reviews
Search Delta flights
United AirlinesPriceFrom $345Free CancellationRating
7.4
8,916 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

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
Sun 8/10
Sun 8/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to South Dakota

Popular cities in South Dakota

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $57
Flights to Los Angelesfrom $43
Flights to Miamifrom $53
Flights to Chicagofrom $61
Flights to Orlandofrom $60
Flights to Las Vegasfrom $21
Flights to San Franciscofrom $68
Flights to Washington, D.C.from $57
Flights to Bostonfrom $78
Flights to Atlantafrom $48
Flights to Dallasfrom $58
Flights to Seattlefrom $95