What is the cheapest airline that flies from South Dakota to Washington?

Frontier, Delta, and Sun Country Air are the most popular carriers operating from South Dakota to Washington

What airlines fly to State of Washington?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to State of Washington from South Dakota according to our data. United Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 4 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

How long is the flight from South Dakota to State of Washington?

If you’re flying from a popular airport in South Dakota, such as Rapid City or Sioux Falls, and flying into State of Washington, then you can expect flight times to average 5h 29m and 5h 35m, respectively.

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?

The number of operators available for flights from South Dakota to Washington is 4 as of February 2026.

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.

$105 Cheap Flights from South Dakota to Washington in 2026

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Find the cheapest flights from South Dakota to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:26 pm - 11:03 am

FSD

PDX

44h 37m

2 stops

11:48 am - 7:36 pm

PDX

FSD

5h 48m

1 stop

$249Multiple Airlines

Wed, Apr 29 - Mon, May 4

1:22 pm - 10:02 pm

FSD

PDX

10h 40m

1 stop

11:59 pm - 11:38 am

PDX

FSD

9h 39m

1 stop

$251American Airlines

Tue, Mar 10 - Tue, Mar 17

9:10 pm - 11:42 am

FSD

PDX

40h 32m

2 stops

11:48 am - 7:36 pm

PDX

FSD

5h 48m

1 stop

$259Multiple Airlines

Thu, Apr 30 - Mon, May 4

8:05 am - 1:03 pm

FSD

GEG

6h 58m

1 stop

2:08 pm - 11:02 pm

GEG

FSD

6h 54m

1 stop

$265Delta

Wed, Apr 29 - Sun, May 3

8:05 am - 1:08 pm

FSD

GEG

7h 03m

1 stop

7:45 pm - 10:21 am

GEG

FSD

12h 36m

2 stops

$270Delta

Wed, Mar 4 - Mon, Mar 9

6:00 am - 1:08 pm

RAP

GEG

8h 08m

1 stop

6:45 am - 3:44 pm

GEG

RAP

7h 59m

1 stop

$274Delta

Sat, Feb 28 - Sat, Mar 7

8:05 am - 1:08 pm

FSD

GEG

7h 03m

1 stop

7:45 pm - 10:21 am

GEG

FSD

12h 36m

2 stops

$275Delta

Wed, Mar 4 - Mon, Mar 9

2:42 pm - 9:14 pm

RAP

PDX

7h 32m

1 stop

5:00 am - 1:08 pm

PDX

RAP

7h 08m

1 stop

$279United Airlines

Tue, Apr 7 - Sat, Apr 11

7:00 am - 12:42 pm

RAP

GEG

6h 42m

1 stop

1:44 pm - 8:44 pm

GEG

RAP

6h 00m

1 stop

$279United Airlines

Thu, Feb 26 - Mon, Mar 2

8:00 am - 1:10 pm

FSD

GEG

7h 10m

1 stop

2:15 pm - 11:04 pm

GEG

FSD

6h 49m

1 stop

$279Delta

Fri, Mar 13 - Tue, Mar 17

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

Jun 24

FSD4:44 pmSioux Falls Joe Foss Field

7h 40m

1 stop

SEA10:24 pmSeattle/Tacoma Intl

Jun 30

SEA6:00 amSeattle/Tacoma Intl

8h 14m

1 stop

FSD4:14 pmSioux Falls Joe Foss Field

$444

Alaska Airlines

May 20

FSD12:29 pmSioux Falls Joe Foss Field

13h 25m

2 stops

SEA11:54 pmSeattle/Tacoma Intl

May 23

SEA12:29 amSeattle/Tacoma Intl

9h 03m

1 stop

FSD11:32 amSioux Falls Joe Foss Field

$459

Alaska Airlines

May 20

FSD12:29 pmSioux Falls Joe Foss Field

13h 25m

2 stops

SEA11:54 pmSeattle/Tacoma Intl

May 24

SEA6:00 amSeattle/Tacoma Intl

14h 55m

2 stops

FSD10:55 pmSioux Falls Joe Foss Field

$465

United Airlines flights from South Dakota to State of Washington

Our best United Airlines deals on South Dakota to State of Washington flight tickets

United Airlines

Apr 7

RAP2:42 pmRapid City

7h 32m

1 stop

PDX9:14 pmPortland

Apr 11

PDX5:00 amPortland

7h 08m

1 stop

RAP1:08 pmRapid City

$279

United Airlines

Apr 7

RAP2:42 pmRapid City

11h 02m

2 stops

PDX12:44 amPortland

Apr 11

PDX5:00 amPortland

5h 24m

1 stop

RAP11:24 amRapid City

$284

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

momondo Fare Finder

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 FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Wed 4/29

4:26 pm-11:03 am

2 stops44h 37m

Portland

Mon 5/4

11:48 am-7:36 pm

1 stop5h 48m

$249

Sioux FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Tue 3/10

1:22 pm-10:02 pm

1 stop10h 40m

Portland

Tue 3/17

11:59 pm-11:38 am

1 stop9h 39m

$251

Sioux FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Thu 4/30

9:10 pm-11:42 am

2 stops40h 32m

Portland

Mon 5/4

11:48 am-7:36 pm

1 stop5h 48m

$259

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 4/29

8:05 am-1:03 pm

1 stop6h 58m

Spokane

Sun 5/3

2:08 pm-11:02 pm

1 stop6h 54m

$265

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 3/4

8:05 am-1:08 pm

1 stop7h 03m

Spokane

Mon 3/9

7:45 pm-10:21 am

2 stops12h 36m

$270

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Sat 2/28

6:00 am-1:08 pm

1 stop8h 08m

Spokane

Sat 3/7

6:45 am-3:44 pm

1 stop7h 59m

$274

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 3/4

8:05 am-1:08 pm

1 stop7h 03m

Spokane

Mon 3/9

7:45 pm-10:21 am

2 stops12h 36m

$275

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Tue 4/7

2:42 pm-9:14 pm

1 stop7h 32m

Portland

Sat 4/11

5:00 am-1:08 pm

1 stop7h 08m

$279

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 2/26

7:00 am-12:42 pm

1 stop6h 42m

Spokane

Mon 3/2

1:44 pm-8:44 pm

1 stop6h 00m

$279

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Fri 3/13

8:00 am-1:10 pm

1 stop7h 10m

Spokane

Tue 3/17

2:15 pm-11:04 pm

1 stop6h 49m

$279

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 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

Prices

Airlines

Other information

What is the cheapest month to fly to State of Washington?

The month of January is, on average, the cheapest month to fly to State of Washington from South Dakota, with most prices found around $306. If you aren’t able to travel to State of Washington during the month of January, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $310.

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 $400 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 $237 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 20m
Direct flights	None

The fastest flight from South Dakota to State of Washington takes 5h 20m

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?
The number of operators available for flights from South Dakota to Washington is 4 as of February 2026.
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
Frontier	PriceFrom $190	Free Cancellation	Rating 5.7 3,052 reviews	Search Frontier flights
Delta	PriceFrom $228	Free Cancellation	Rating 7.9 8,180 reviews	Search Delta flights
United Airlines	PriceFrom $240	Free Cancellation	Rating 7.4 9,279 reviews	Search United Airlines flights
American Airlines	PriceFrom $254	Free Cancellation	Rating 7.2 11,271 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.