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 Sioux Falls or Rapid City, and flying into State of Washington, then you can expect flight times to average 5h 35m and 6h 01m, respectively.

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

Frontier, United Airlines, and Allegiant 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 54% 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.

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 May 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.

$136 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.

7:18 pm - 10:06 am

FSD

SEA

16h 48m

1 stop

3:33 pm - 7:19 pm

SEA

FSD

25h 46m

1 stop

$260Frontier

Wed, Jun 3 - Tue, Jun 9

7:18 pm - 4:46 pm

FSD

PDX

23h 28m

1 stop

5:20 pm - 7:19 pm

PDX

FSD

23h 59m

1 stop

$280Frontier

Wed, Jun 3 - Tue, Jun 9

10:58 am - 3:58 pm

FSD

PDX

7h 00m

1 stop

1:25 pm - 10:46 pm

PDX

FSD

7h 21m

1 stop

$291Delta

Sat, Sep 19 - Tue, Sep 22

6:00 am - 9:31 am

FSD

PDX

5h 31m

1 stop

10:43 am - 9:43 pm

PDX

FSD

9h 00m

2 stops

$296United Airlines

Tue, Oct 13 - Tue, Oct 20

5:01 pm - 12:04 am

FSD

PDX

9h 03m

1 stop

3:31 pm - 11:53 pm

PDX

FSD

6h 22m

1 stop

$310American Airlines

Sat, Jul 18 - Wed, Jul 22

1:26 pm - 7:24 pm

FSD

GEG

7h 58m

1 stop

2:05 pm - 10:46 pm

GEG

FSD

6h 41m

1 stop

$319Delta

Sat, Aug 29 - Sat, Sep 5

6:00 am - 10:01 am

FSD

SEA

6h 01m

1 stop

11:03 am - 10:52 pm

SEA

FSD

9h 49m

2 stops

$334United Airlines

Sun, Sep 6 - Tue, Sep 15

6:25 am - 1:19 pm

FSD

GEG

8h 54m

1 stop

2:09 pm - 12:31 am

GEG

FSD

8h 22m

1 stop

$339American Airlines

Sat, Aug 29 - Sat, Sep 5

9:54 pm - 7:47 pm

RAP

PDX

22h 53m

1 stop

7:17 pm - 9:00 pm

PDX

RAP

24h 43m

1 stop

$395Multiple Airlines

Thu, Jun 11 - Thu, Jun 18

9:54 pm - 4:57 pm

RAP

PDX

20h 03m

2 stops

7:17 pm - 9:00 pm

PDX

RAP

24h 43m

1 stop

$410Multiple Airlines

Sun, Jun 14 - Thu, Jun 18

Frontier flights from South Dakota to State of Washington

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

Frontier

Jun 3

FSD7:18 pmSioux Falls Joe Foss Field

16h 48m

1 stop

SEA10:06 amSeattle/Tacoma Intl

Jun 9

SEA3:33 pmSeattle/Tacoma Intl

25h 46m

1 stop

FSD7:19 pmSioux Falls Joe Foss Field

$260

Frontier

Jun 3

FSD7:18 pmSioux Falls Joe Foss Field

23h 28m

1 stop

PDX4:46 pmPortland

Jun 9

PDX5:20 pmPortland

23h 59m

1 stop

FSD7:19 pmSioux Falls Joe Foss Field

$280

Frontier

Jun 22

FSD8:14 pmSioux Falls Joe Foss Field

15h 34m

1 stop

SEA9:48 amSeattle/Tacoma Intl

Jun 25

SEA7:41 pmSeattle/Tacoma Intl

21h 38m

1 stop

FSD7:19 pmSioux Falls Joe Foss Field

$281

American Airlines flights from South Dakota to State of Washington

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

American Airlines

Jul 18

FSD5:01 pmSioux Falls Joe Foss Field

9h 03m

1 stop

PDX12:04 amPortland

Jul 22

PDX3:31 pmPortland

6h 22m

1 stop

FSD11:53 pmSioux Falls Joe Foss Field

$310

American Airlines

Aug 27

RAP5:02 pmRapid City

8h 34m

1 stop

SEA12:36 amSeattle/Tacoma Intl

Sep 1

SEA6:00 amSeattle/Tacoma Intl

7h 51m

1 stop

RAP2:51 pmRapid City

$338

American Airlines

Aug 27

RAP3:23 pmRapid City

8h 58m

1 stop

SEA11:21 pmSeattle/Tacoma Intl

Sep 1

SEA6:00 amSeattle/Tacoma Intl

7h 51m

1 stop

RAP2:51 pmRapid City

$339

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

Cheapest round-trip

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 6/3

7:18 pm-10:06 am

1 stop16h 48m

Seattle/Tacoma Intl

Tue 6/9

3:33 pm-7:19 pm

1 stop25h 46m

$260

Sioux FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Wed 6/3

7:18 pm-4:46 pm

1 stop23h 28m

Portland

Tue 6/9

5:20 pm-7:19 pm

1 stop23h 59m

$280

Quickest round-trip

Sioux FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Sat 9/19

10:58 am-3:58 pm

1 stop7h 00m

Portland

Tue 9/22

1:25 pm-10:46 pm

1 stop7h 21m

$291

Sioux FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Tue 10/13

6:00 am-9:31 am

1 stop5h 31m

Portland

Tue 10/20

10:43 am-9:43 pm

2 stops9h 00m

$296

Sioux FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Sat 7/18

5:01 pm-12:04 am

1 stop9h 03m

Portland

Wed 7/22

3:31 pm-11:53 pm

1 stop6h 22m

$310

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Sat 8/29

1:26 pm-7:24 pm

1 stop7h 58m

Spokane

Sat 9/5

2:05 pm-10:46 pm

1 stop6h 41m

$319

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sun 9/6

6:00 am-10:01 am

1 stop6h 01m

Seattle/Tacoma Intl

Tue 9/15

11:03 am-10:52 pm

2 stops9h 49m

$334

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Sat 8/29

6:25 am-1:19 pm

1 stop8h 54m

Spokane

Sat 9/5

2:09 pm-12:31 am

1 stop8h 22m

$339

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 6/11

9:54 pm-7:47 pm

1 stop22h 53m

Portland

Thu 6/18

7:17 pm-9:00 pm

1 stop24h 43m

$395

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 6/14

9:54 pm-4:57 pm

2 stops20h 03m

Portland

Thu 6/18

7:17 pm-9:00 pm

1 stop24h 43m

$410

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 October is, on average, the cheapest month to fly to State of Washington from South Dakota, with most prices found around $156. If you aren’t able to travel to State of Washington during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $164.

How far in advance should I book a flight from South Dakota to 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 $404 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.

Can stopping save me money on South Dakota to State of Washington flights?

You could potentially save up to 46% on your flight if you consider stops on a South Dakota to State of Washington flight.

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	4h 37m
Direct flights	None

The fastest flight from South Dakota to State of Washington takes 4h 37m

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

Frequently asked questions about flying from South Dakota to Washington

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 May 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 $189	Free Cancellation	Rating 5.6 2,945 reviews	Search Frontier flights
Delta	PriceFrom $228	Free Cancellation	Rating 7.9 8,452 reviews	Search Delta flights
United Airlines	PriceFrom $244	Free Cancellation	Rating 7.4 9,733 reviews	Search United Airlines flights
American Airlines	PriceFrom $254	Free Cancellation	Rating 7.1 11,645 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.