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Cheap flights from South Dakota to Seattle from $71

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Dakota to Seattle departing on 3/5. 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 South Dakota to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:15 pm - 10:56 pm
RAP
-
SEA
7h 41m
1 stop
United Airlines Logo
5:00 am - 1:08 pm
SEA
-
RAP
7h 08m
1 stop
$279United Airlines
Fri, Apr 24 - Mon, Apr 27
Delta Logo
4:01 pm - 12:01 am
RAP
-
SEA
9h 00m
2 stops
Delta Logo
6:00 am - 3:18 pm
SEA
-
RAP
8h 18m
1 stop
$284Delta
Tue, Mar 10 - Tue, Mar 17
Frontier Logo
8:30 pm - 9:27 am
FSD
-
SEA
14h 57m
1 stop
Frontier Logo
4:20 pm - 7:36 pm
SEA
-
FSD
25h 16m
1 stop
$287Frontier
Fri, Apr 17 - Sun, Apr 19
American Airlines Logo
7:39 pm - 12:51 am
FSD
-
SEA
7h 12m
1 stop
American Airlines Logo
3:09 pm - 12:06 am
SEA
-
FSD
6h 57m
1 stop
$289American Airlines
Wed, May 20 - Sun, May 24
United Airlines Logo
12:00 pm - 6:04 pm
RAP
-
SEA
7h 04m
1 stop
United Airlines Logo
5:00 am - 1:13 pm
SEA
-
RAP
7h 13m
1 stop
$293United Airlines
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
6:00 am - 2:46 pm
FSD
-
SEA
10h 46m
2 stops
United Airlines Logo
3:48 pm - 11:44 pm
SEA
-
FSD
5h 56m
1 stop
$294United Airlines
Tue, Apr 21 - Sat, Apr 25
Multiple Airlines Logo
4:26 pm - 3:05 pm
FSD
-
SEA
24h 39m
2 stops
Multiple Airlines Logo
6:57 pm - 7:36 pm
SEA
-
FSD
22h 39m
1 stop
$295Multiple Airlines
Wed, Apr 22 - Sun, Apr 26
Delta Logo
4:01 pm - 11:40 pm
RAP
-
SEA
8h 39m
1 stop
Delta Logo
6:00 am - 3:18 pm
SEA
-
RAP
8h 18m
1 stop
$329Delta
Thu, Apr 2 - Sat, Apr 11
American Airlines Logo
5:21 pm - 12:55 am
FSD
-
SEA
9h 34m
1 stop
American Airlines Logo
12:07 am - 11:38 am
SEA
-
FSD
9h 31m
1 stop
$339American Airlines
Sat, Mar 21 - Sat, Mar 28
Frontier Logo
2:16 pm - 10:55 am
FSD
-
SEA
22h 39m
1 stop
Frontier Logo
12:00 pm - 1:57 pm
SEA
-
FSD
23h 57m
1 stop
$382Frontier
Thu, Feb 26 - Sun, Mar 1

United Airlines flights from South Dakota to Seattle

Our best United Airlines deals on South Dakota to Seattle flight tickets
United Airlines
Apr 24
RAP4:15 pmRapid City
7h 41m
1 stop
SEA10:56 pmSeattle/Tacoma Intl
Apr 27
SEA5:00 amSeattle/Tacoma Intl
7h 08m
1 stop
RAP1:08 pmRapid City
$279
United Airlines
Mar 10
RAP12:00 pmRapid City
7h 04m
1 stop
SEA6:04 pmSeattle/Tacoma Intl
Mar 17
SEA5:00 amSeattle/Tacoma Intl
7h 13m
1 stop
RAP1:13 pmRapid City
$293
United Airlines
Apr 21
FSD6:00 amSioux Falls Joe Foss Field
10h 46m
2 stops
SEA2:46 pmSeattle/Tacoma Intl
Apr 25
SEA3:48 pmSeattle/Tacoma Intl
5h 56m
1 stop
FSD11:44 pmSioux Falls Joe Foss Field
$294

Frontier flights from South Dakota to Seattle

Our best Frontier deals on South Dakota to Seattle flight tickets
Frontier
Apr 17
FSD8:30 pmSioux Falls Joe Foss Field
14h 57m
1 stop
SEA9:27 amSeattle/Tacoma Intl
Apr 19
SEA4:20 pmSeattle/Tacoma Intl
25h 16m
1 stop
FSD7:36 pmSioux Falls Joe Foss Field
$287
Frontier
Feb 26
FSD2:16 pmSioux Falls Joe Foss Field
22h 39m
1 stop
SEA10:55 amSeattle/Tacoma Intl
Mar 1
SEA12:00 pmSeattle/Tacoma Intl
23h 57m
1 stop
FSD1:57 pmSioux Falls Joe Foss Field
$382
Frontier
Feb 26
FSD2:16 pmSioux Falls Joe Foss Field
22h 39m
1 stop
SEA10:55 amSeattle/Tacoma Intl
Mar 1
SEA9:23 pmSeattle/Tacoma Intl
14h 34m
2 stops
FSD1:57 pmSioux Falls Joe Foss Field
$401

momondo Fare Finder

 
Customize your flight search to find flights from South Dakota to Seattle 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 9, 2026.
Use the filters below to find and compare flights from South Dakota to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Fri 4/24

4:15 pm-10:56 pm

1 stop7h 41m

Seattle/Tacoma Intl

Mon 4/27

5:00 am-1:08 pm

1 stop7h 08m

$279

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Tue 3/10

4:01 pm-12:01 am

2 stops9h 00m

Seattle/Tacoma Intl

Tue 3/17

6:00 am-3:18 pm

1 stop8h 18m

$284

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 4/17

8:30 pm-9:27 am

1 stop14h 57m

Seattle/Tacoma Intl

Sun 4/19

4:20 pm-7:36 pm

1 stop25h 16m

$287

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 5/20

7:39 pm-12:51 am

1 stop7h 12m

Seattle/Tacoma Intl

Sun 5/24

3:09 pm-12:06 am

1 stop6h 57m

$289

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Tue 3/10

12:00 pm-6:04 pm

1 stop7h 04m

Seattle/Tacoma Intl

Tue 3/17

5:00 am-1:13 pm

1 stop7h 13m

$293

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Tue 4/21

6:00 am-2:46 pm

2 stops10h 46m

Seattle/Tacoma Intl

Sat 4/25

3:48 pm-11:44 pm

1 stop5h 56m

$294

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 4/22

4:26 pm-3:05 pm

2 stops24h 39m

Seattle/Tacoma Intl

Sun 4/26

6:57 pm-7:36 pm

1 stop22h 39m

$295

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Thu 4/2

4:01 pm-11:40 pm

1 stop8h 39m

Seattle/Tacoma Intl

Sat 4/11

6:00 am-3:18 pm

1 stop8h 18m

$329

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sat 3/21

5:21 pm-12:55 am

1 stop9h 34m

Seattle/Tacoma Intl

Sat 3/28

12:07 am-11:38 am

1 stop9h 31m

$339

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 2/26

2:16 pm-10:55 am

1 stop22h 39m

Seattle/Tacoma Intl

Sun 3/1

12:00 pm-1:57 pm

1 stop23h 57m

$382

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 Seattle from

How to get the cheapest flight ticket from South Dakota to Seattle

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 Seattle?

In general, January is the cheapest month to fly from South Dakota to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $306. If you don’t want to visit Seattle in January, then you should wait until August to fly from South Dakota, when ticket prices are also cheap, with an average price of $310.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from South Dakota when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $400 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from South Dakota for as low as $237 on momondo.

Cheap South Dakota to Seattle flight deals and tips

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

Fastest flight time

5h 29m

Direct flights

None
The fastest flight from South Dakota to Seattle takes 5h 29m
There are no direct flights from South Dakota to Seattle. There are no popular flight routes from South Dakota to Seattle.
Search flight deals

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

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

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

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

    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 South Dakota to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from South Dakota to Seattle

Compare and see reviews for airlines that fly from South Dakota to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $190Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,174 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,258 reviews
Search American Airlines flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,259 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Redmond
Puyallup
Cle Elum
Tukwila
Lakewood
Federal Way
Westport
Kirkland
Centralia
Fife
Tumwater

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from South Dakota to Seattle. momondo saves you time and could save you money on your trip.

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

All flight searches from South Dakota to Seattle on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential South Dakota to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from South Dakota and alert you when they change.

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