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Cheap flights from South Dakota to Washington from $109

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 Washington departing on 1/9. 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 Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:45 pm - 11:21 am
FSD
-
SEA
17h 36m1 stop
Multiple Airlines Logo
12:59 pm - 9:57 am
SEA
-
FSD
18h 58m1 stop
$203Multiple Airlines
Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
9:31 pm - 9:04 am
FSD
-
SEA
13h 33m1 stop
Multiple Airlines Logo
1:02 pm - 2:47 pm
SEA
-
FSD
23h 45m1 stop
$228Multiple Airlines
Fri, Jan 9 - Mon, Jan 12
Delta Logo
6:00 am - 1:03 pm
RAP
-
GEG
8h 03m1 stop
Delta Logo
6:30 am - 3:25 pm
GEG
-
RAP
7h 55m1 stop
$239Delta
Thu, Jan 15 - Sat, Jan 24
Delta Logo
6:00 am - 1:03 pm
RAP
-
GEG
8h 03m1 stop
Delta Logo
11:25 am - 10:28 pm
GEG
-
RAP
10h 03m2 stops
$244Delta
Thu, Jan 15 - Sat, Jan 24
Multiple Airlines Logo
7:45 pm - 4:29 pm
FSD
-
SEA
22h 44m2 stops
Multiple Airlines Logo
12:59 pm - 9:57 am
SEA
-
FSD
18h 58m1 stop
$244Multiple Airlines
Thu, Jan 8 - Thu, Jan 15
United Airlines Logo
5:18 pm - 9:15 pm
FSD
-
SEA
5h 57m1 stop
United Airlines Logo
10:58 am - 9:50 pm
SEA
-
FSD
8h 52m1 stop
$257United Airlines
Sat, Jan 17 - Sat, Jan 31
American Airlines Logo
2:25 pm - 9:21 pm
FSD
-
PDX
8h 56m1 stop
American Airlines Logo
2:50 pm - 11:41 pm
PDX
-
FSD
6h 51m1 stop
$260American Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
5:18 pm - 9:15 pm
FSD
-
SEA
5h 57m1 stop
United Airlines Logo
8:40 am - 9:50 pm
SEA
-
FSD
11h 10m2 stops
$262United Airlines
Sat, Jan 17 - Sat, Jan 31
American Airlines Logo
2:25 pm - 8:35 pm
FSD
-
SEA
8h 10m1 stop
American Airlines Logo
2:35 pm - 11:41 pm
SEA
-
FSD
7h 06m1 stop
$267American Airlines
Tue, Jan 20 - Tue, Jan 27
Alaska Airlines Logo
10:41 am - 10:22 pm
FSD
-
BLI
13h 41m2 stops
Alaska Airlines Logo
9:15 am - 11:41 pm
BLI
-
FSD
12h 26m2 stops
$1,403Alaska Airlines
Sun, Jan 4 - Thu, Jan 8

Alaska Airlines flights from South Dakota to State of Washington

Our best Alaska Airlines deals on South Dakota to State of Washington flight tickets
Alaska Airlines
Feb 11
FSD12:26 pmSioux Falls Joe Foss Field
11h 49m
2 stops
SEA10:15 pmSeattle/Tacoma Intl
Feb 18
SEA3:40 pmSeattle/Tacoma Intl
25h 26m
2 stops
FSD7:06 pmSioux Falls Joe Foss Field
$394
Find similar
Alaska Airlines
Feb 12
FSD12:19 pmSioux Falls Joe Foss Field
8h 21m
1 stop
SEA6:40 pmSeattle/Tacoma Intl
Feb 18
SEA3:40 pmSeattle/Tacoma Intl
25h 26m
2 stops
FSD7:06 pmSioux Falls Joe Foss Field
$459
Find similar
Alaska Airlines
Dec 21
FSD10:46 amSioux Falls Joe Foss Field
13h 18m
2 stops
PDX10:04 pmPortland
Jan 1
PDX11:00 pmPortland
9h 11m
1 stop
FSD10:11 amSioux Falls Joe Foss Field
$495
Find similar

Delta flights from South Dakota to State of Washington

Our best Delta deals on South Dakota to State of Washington flight tickets
Delta
Jan 15
RAP6:00 amRapid City
8h 03m
1 stop
GEG1:03 pmSpokane
Jan 24
GEG6:30 amSpokane
7h 55m
1 stop
RAP3:25 pmRapid City
$239
Find similar
Delta
Jan 15
RAP6:00 amRapid City
8h 03m
1 stop
GEG1:03 pmSpokane
Jan 24
GEG11:25 amSpokane
10h 03m
2 stops
RAP10:28 pmRapid City
$244
Find similar
Delta
Mar 12
FSD8:05 amSioux Falls Joe Foss Field
7h 06m
1 stop
GEG1:11 pmSpokane
Mar 18
GEG2:06 pmSpokane
7h 02m
1 stop
FSD11:08 pmSioux Falls Joe Foss Field
$259
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from South Dakota to State of Washington 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 December 11, 2025.
Use the filters below to find and compare flights from South Dakota to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 1/8

7:45 pm-11:21 am

1 stop17h 36m

Seattle/Tacoma Intl

Thu 1/15

12:59 pm-9:57 am

1 stop18h 58m

$203

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 1/9

9:31 pm-9:04 am

1 stop13h 33m

Seattle/Tacoma Intl

Mon 1/12

1:02 pm-2:47 pm

1 stop23h 45m

$228

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 1/15

6:00 am-1:03 pm

1 stop8h 03m

Spokane

Sat 1/24

6:30 am-3:25 pm

1 stop7h 55m

$239

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 1/15

6:00 am-1:03 pm

1 stop8h 03m

Spokane

Sat 1/24

11:25 am-10:28 pm

2 stops10h 03m

$244

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 1/8

7:45 pm-4:29 pm

2 stops22h 44m

Seattle/Tacoma Intl

Thu 1/15

12:59 pm-9:57 am

1 stop18h 58m

$244

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sat 1/17

5:18 pm-9:15 pm

1 stop5h 57m

Seattle/Tacoma Intl

Sat 1/31

10:58 am-9:50 pm

1 stop8h 52m

$257

Sioux FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Fri 1/30

2:25 pm-9:21 pm

1 stop8h 56m

Portland

Tue 2/3

2:50 pm-11:41 pm

1 stop6h 51m

$260

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sat 1/17

5:18 pm-9:15 pm

1 stop5h 57m

Seattle/Tacoma Intl

Sat 1/31

8:40 am-9:50 pm

2 stops11h 10m

$262

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Tue 1/20

2:25 pm-8:35 pm

1 stop8h 10m

Seattle/Tacoma Intl

Tue 1/27

2:35 pm-11:41 pm

1 stop7h 06m

$267

Sioux FallsBellingham

FSD - BLI

FSDBLI

Sioux Falls Joe Foss Field

Sun 1/4

10:41 am-10:22 pm

2 stops13h 41m

Bellingham

Thu 1/8

9:15 am-11:41 pm

2 stops12h 26m

$1,403

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 Washington from

How to get the cheapest flight ticket from South Dakota to State of Washington

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 State of Washington?

The month of August is, on average, the cheapest month to fly to State of Washington from South Dakota, with most prices found around $321. If you aren’t able to travel to State of Washington during the month of August, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $339.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from South Dakota to State of Washington is on a Tuesday. Travelers who choose to depart for State of Washington on a Tuesday will often find tickets for as low as $550. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from South Dakota to State of Washington for around $754.

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

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $527. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $594 on average. Flights to State of Washington from South Dakota in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from South Dakota when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $411 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from South Dakota for as low as $289 on momondo.

Cheap South Dakota to State of Washington flight deals and tips

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

Fastest flight time

5h 33m

Direct flights

None
The fastest flight from South Dakota to State of Washington takes 5h 33m
There are no direct flights from South Dakota to State of Washington. There are no popular flight routes from South Dakota to State of Washington.
Search flight deals

  • When did momondo last update prices for flights from South Dakota to Washington?

    Prices for flights from South Dakota to Washington were last updated today.

  • How many operators does momondo search for flights from South Dakota to Washington?

  • How old do you have to be to fly from South Dakota to Washington?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from South Dakota to Washington.

  • What documentation or ID do you need to fly to Washington?

    The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from South Dakota to State of Washington

Compare and see reviews for airlines that fly from South Dakota to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $190Free CancellationRating
5.8
3,084 reviews
Search Frontier flights
DeltaPriceFrom $208Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
American AirlinesPriceFrom $254Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from South Dakota to Washington. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from South Dakota to Washington.

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

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

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