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Cheap flights from South Dakota to Seattle from $125

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 8/17. 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 South Dakota to Seattle

Cheap round-trip flights

Frontier Logo
3:07 pm - 11:01 pmFSD-SEA
9h 54m1 stop
Frontier Logo
6:41 am - 2:12 pmSEA-FSD
5h 31m1 stop
$200Frontier
Find Deal
mié., ago. 20 - mié., ago. 27
Frontier Logo
3:07 pm - 11:01 pmFSD-SEA
9h 54m1 stop
Frontier Logo
6:41 am - 2:12 pmSEA-FSD
5h 31m1 stop
$218Frontier
Find Deal
mié., ago. 20 - mié., ago. 27
Frontier Logo
3:07 pm - 11:01 pmFSD-SEA
9h 54m1 stop
Frontier Logo
6:17 am - 1:23 pmSEA-FSD
5h 06m1 stop
$228Frontier
Find Deal
mié., ago. 20 - dom., ago. 24
Delta Logo
4:24 pm - 11:43 pmRAP-SEA
8h 19m1 stop
Delta Logo
6:00 am - 3:43 pmSEA-RAP
8h 43m1 stop
$259Delta
Find Deal
vie., sep. 26 - dom., oct. 5
United Airlines Logo
5:30 am - 3:14 pmRAP-SEA
10h 44m2 stops
United Airlines Logo
12:43 pm - 6:50 pmSEA-RAP
5h 07m1 stop
$264United Airlines
Find Deal
mar., sep. 2 - mar., sep. 9
United Airlines Logo
5:30 am - 3:14 pmRAP-SEA
10h 44m2 stops
United Airlines Logo
1:05 pm - 9:59 pmSEA-RAP
7h 54m2 stops
$269United Airlines
Find Deal
mar., sep. 2 - mar., sep. 9
American Airlines Logo
2:45 pm - 9:08 pmFSD-SEA
8h 23m1 stop
American Airlines Logo
5:26 am - 5:03 pmSEA-FSD
9h 37m1 stop
$269American Airlines
Find Deal
vie., sep. 12 - mié., sep. 17
Delta Logo
4:24 pm - 11:43 pmRAP-SEA
8h 19m1 stop
Delta Logo
6:00 am - 3:50 pmSEA-RAP
8h 50m1 stop
$274Delta
Find Deal
mié., sep. 24 - mié., oct. 8
American Airlines Logo
12:18 pm - 7:29 pmRAP-SEA
8h 11m1 stop
American Airlines Logo
11:42 am - 9:50 pmSEA-RAP
9h 08m1 stop
$405American Airlines
Find Deal
vie., oct. 17 - lun., oct. 20
Alaska Airlines Logo
6:00 am - 12:34 pmFSD-SEA
8h 34m1 stop
Alaska Airlines Logo
12:59 am - 11:49 amSEA-FSD
8h 50m1 stop
$494Alaska Airlines
Find Deal
vie., sep. 12 - mar., sep. 16

Frontier flights from South Dakota to Seattle

Our best Frontier deals on South Dakota to Seattle flight tickets
Frontier
Aug 20
FSD3:07 pmSioux Falls Joe Foss Field
9h 54m
1 stop
SEA11:01 pmSeattle/Tacoma Intl
Aug 27
SEA6:41 amSeattle/Tacoma Intl
5h 31m
1 stop
FSD2:12 pmSioux Falls Joe Foss Field
$200
Find similar
Frontier
Aug 20
FSD3:07 pmSioux Falls Joe Foss Field
9h 54m
1 stop
SEA11:01 pmSeattle/Tacoma Intl
Aug 27
SEA6:41 amSeattle/Tacoma Intl
5h 31m
1 stop
FSD2:12 pmSioux Falls Joe Foss Field
$218
Find similar
Frontier
Aug 20
FSD3:07 pmSioux Falls Joe Foss Field
9h 54m
1 stop
SEA11:01 pmSeattle/Tacoma Intl
Aug 24
SEA6:17 amSeattle/Tacoma Intl
5h 06m
1 stop
FSD1:23 pmSioux Falls Joe Foss Field
$228
Find similar

American Airlines flights from South Dakota to Seattle

Our best American Airlines deals on South Dakota to Seattle flight tickets
American Airlines
Sep 12
FSD2:45 pmSioux Falls Joe Foss Field
8h 23m
1 stop
SEA9:08 pmSeattle/Tacoma Intl
Sep 17
SEA5:26 amSeattle/Tacoma Intl
9h 37m
1 stop
FSD5:03 pmSioux Falls Joe Foss Field
$269
Find similar
American Airlines
Oct 17
RAP12:18 pmRapid City
8h 11m
1 stop
SEA7:29 pmSeattle/Tacoma Intl
Oct 20
SEA11:42 amSeattle/Tacoma Intl
9h 08m
1 stop
RAP9:50 pmRapid City
$405
Find similar
American Airlines
Oct 21
FSD5:42 pmSioux Falls Joe Foss Field
8h 45m
1 stop
SEA12:27 amSeattle/Tacoma Intl
Oct 26
SEA10:39 amSeattle/Tacoma Intl
10h 03m
1 stop
FSD10:42 pmSioux Falls Joe Foss Field
$425
Find similar

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 agosto 7, 2025.
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

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

mié. 8/20

3:07 pm-11:01 pm

1 stop9h 54m

Seattle/Tacoma Intl

mié. 8/27

6:41 am-2:12 pm

1 stop5h 31m

$200

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

mié. 8/20

3:07 pm-11:01 pm

1 stop9h 54m

Seattle/Tacoma Intl

mié. 8/27

6:41 am-2:12 pm

1 stop5h 31m

$218

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

mié. 8/20

3:07 pm-11:01 pm

1 stop9h 54m

Seattle/Tacoma Intl

dom. 8/24

6:17 am-1:23 pm

1 stop5h 06m

$228

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

vie. 9/26

4:24 pm-11:43 pm

1 stop8h 19m

Seattle/Tacoma Intl

dom. 10/5

6:00 am-3:43 pm

1 stop8h 43m

$259

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

mar. 9/2

5:30 am-3:14 pm

2 stops10h 44m

Seattle/Tacoma Intl

mar. 9/9

12:43 pm-6:50 pm

1 stop5h 07m

$264

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

mar. 9/2

5:30 am-3:14 pm

2 stops10h 44m

Seattle/Tacoma Intl

mar. 9/9

1:05 pm-9:59 pm

2 stops7h 54m

$269

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

vie. 9/12

2:45 pm-9:08 pm

1 stop8h 23m

Seattle/Tacoma Intl

mié. 9/17

5:26 am-5:03 pm

1 stop9h 37m

$269

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

mié. 9/24

4:24 pm-11:43 pm

1 stop8h 19m

Seattle/Tacoma Intl

mié. 10/8

6:00 am-3:50 pm

1 stop8h 50m

$274

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

vie. 10/17

12:18 pm-7:29 pm

1 stop8h 11m

Seattle/Tacoma Intl

lun. 10/20

11:42 am-9:50 pm

1 stop9h 08m

$405

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

vie. 9/12

6:00 am-12:34 pm

1 stop8h 34m

Seattle/Tacoma Intl

mar. 9/16

12:59 am-11:49 am

1 stop8h 50m

$494

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, July 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 $339. If you don’t want to visit Seattle in July, then you should wait until October to fly from South Dakota, when ticket prices are also cheap, with an average price of $348.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from South Dakota is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $550. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from South Dakota because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $754.

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

Flying to Seattle from South Dakota at noon is the least expensive time of day to depart. momondo users have found prices as low as $527 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $594. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $459 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 $337 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

Best Price Found

$125

Fastest flight time

5h 27m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from South Dakota in the past 72 hours is $125. The best round-trip flight deal from South Dakota to Seattle found on momondo in the last 72 hours is $200.
The fastest flight from South Dakota to Seattle takes 5h 27m
There are no direct flights from South Dakota to Seattle. Popular non-direct routes for this connection are Rapid City Airport - Seattle/Tacoma Intl Airport and Sioux Falls Joe Foss Field Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
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 $139Free CancellationRating
5.8
3,231 reviews
Search Frontier flights
DeltaPriceFrom $229Free CancellationRating
8.0
7,985 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $282Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights

Traveling to a place near Seattle?

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

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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