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Cheap flights from Seattle to Sioux Falls from $256

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Sioux Falls departing on 1/20. 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 Seattle to Sioux Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:23 pm - 4:07 pm
SEA
-
FSD
18h 44m2 stops
Multiple Airlines Logo
3:56 pm - 11:09 am
FSD
-
SEA
21h 13m1 stop
$273Multiple Airlines
Sun, Jan 11 - Sun, Jan 18
American Airlines Logo
12:59 am - 12:41 pm
SEA
-
FSD
9h 42m1 stop
American Airlines Logo
6:45 am - 12:46 pm
FSD
-
SEA
8h 01m1 stop
$289American Airlines
Tue, Mar 10 - Wed, Mar 18
United Airlines Logo
8:40 am - 9:50 pm
SEA
-
FSD
11h 10m2 stops
United Airlines Logo
7:30 am - 4:01 pm
FSD
-
SEA
10h 31m1 stop
$294United Airlines
Thu, Jan 8 - Sun, Jan 11
United Airlines Logo
3:30 pm - 11:44 pm
SEA
-
FSD
6h 14m1 stop
United Airlines Logo
7:30 am - 4:01 pm
FSD
-
SEA
10h 31m1 stop
$305United Airlines
Fri, Jan 16 - Mon, Jan 19
United Airlines Logo
5:00 am - 12:58 pm
SEA
-
FSD
5h 58m1 stop
United Airlines Logo
5:18 pm - 9:15 pm
FSD
-
SEA
5h 57m1 stop
$306United Airlines
Sun, Jan 11 - Sun, Jan 18
United Airlines Logo
8:55 am - 10:14 pm
SEA
-
FSD
11h 19m2 stops
United Airlines Logo
5:50 am - 9:45 am
FSD
-
SEA
5h 55m1 stop
$354United Airlines
Wed, Apr 8 - Thu, Apr 16
Delta Logo
11:47 am - 7:20 pm
SEA
-
FSD
5h 33m1 stop
Delta Logo
5:15 am - 10:45 am
FSD
-
SEA
7h 30m1 stop
$359Delta
Wed, Apr 8 - Tue, Apr 14
Multiple Airlines Logo
1:25 pm - 7:55 pm
SEA
-
FSD
28h 30m1 stop
Multiple Airlines Logo
10:40 pm - 5:51 pm
FSD
-
SEA
21h 11m1 stop
$361Multiple Airlines
Thu, Jan 1 - Mon, Jan 5
United Airlines Logo
3:30 pm - 11:44 pm
SEA
-
FSD
6h 14m1 stop
United Airlines Logo
6:00 am - 9:55 am
FSD
-
SEA
5h 55m1 stop
$369United Airlines
Fri, Feb 6 - Sun, Feb 8
United Airlines Logo
3:44 pm - 11:43 pm
SEA
-
FSD
5h 59m1 stop
United Airlines Logo
5:50 am - 2:38 pm
FSD
-
SEA
10h 48m2 stops
$374United Airlines
Wed, Apr 8 - Tue, Apr 14

United Airlines flights from Seattle to Sioux Falls

Our best United Airlines deals on Seattle to Sioux Falls flight tickets
United Airlines
Jan 8
SEA8:40 amSeattle/Tacoma Intl
11h 10m
2 stops
FSD9:50 pmSioux Falls Joe Foss Field
Jan 11
FSD7:30 amSioux Falls Joe Foss Field
10h 31m
1 stop
SEA4:01 pmSeattle/Tacoma Intl
$294
Find similar
United Airlines
Jan 16
SEA3:30 pmSeattle/Tacoma Intl
6h 14m
1 stop
FSD11:44 pmSioux Falls Joe Foss Field
Jan 19
FSD7:30 amSioux Falls Joe Foss Field
10h 31m
1 stop
SEA4:01 pmSeattle/Tacoma Intl
$305
Find similar
United Airlines
Jan 11
SEA5:00 amSeattle/Tacoma Intl
5h 58m
1 stop
FSD12:58 pmSioux Falls Joe Foss Field
Jan 18
FSD5:18 pmSioux Falls Joe Foss Field
5h 57m
1 stop
SEA9:15 pmSeattle/Tacoma Intl
$306
Find similar

American Airlines flights from Seattle to Sioux Falls

Our best American Airlines deals on Seattle to Sioux Falls flight tickets
American Airlines
Mar 10
SEA12:59 amSeattle/Tacoma Intl
9h 42m
1 stop
FSD12:41 pmSioux Falls Joe Foss Field
Mar 18
FSD6:45 amSioux Falls Joe Foss Field
8h 01m
1 stop
SEA12:46 pmSeattle/Tacoma Intl
$289
Find similar
American Airlines
Dec 30
SEA2:52 pmSeattle/Tacoma Intl
7h 07m
1 stop
FSD11:59 pmSioux Falls Joe Foss Field
Jan 6
FSD8:00 amSioux Falls Joe Foss Field
8h 02m
1 stop
SEA2:02 pmSeattle/Tacoma Intl
$397
Find similar
American Airlines
Mar 15
SEA12:59 amSeattle/Tacoma Intl
9h 42m
1 stop
FSD12:41 pmSioux Falls Joe Foss Field
Mar 17
FSD1:22 pmSioux Falls Joe Foss Field
8h 03m
1 stop
SEA7:25 pmSeattle/Tacoma Intl
$609
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Sioux Falls 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 15, 2025.
Use the filters below to find and compare flights from Seattle to Sioux Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Sun 1/11

7:23 pm-4:07 pm

2 stops18h 44m

Sioux Falls Joe Foss Field

Sun 1/18

3:56 pm-11:09 am

1 stop21h 13m

$273

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Tue 3/10

12:59 am-12:41 pm

1 stop9h 42m

Sioux Falls Joe Foss Field

Wed 3/18

6:45 am-12:46 pm

1 stop8h 01m

$289

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Thu 1/8

8:40 am-9:50 pm

2 stops11h 10m

Sioux Falls Joe Foss Field

Sun 1/11

7:30 am-4:01 pm

1 stop10h 31m

$294

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Fri 1/16

3:30 pm-11:44 pm

1 stop6h 14m

Sioux Falls Joe Foss Field

Mon 1/19

7:30 am-4:01 pm

1 stop10h 31m

$305

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Sun 1/11

5:00 am-12:58 pm

1 stop5h 58m

Sioux Falls Joe Foss Field

Sun 1/18

5:18 pm-9:15 pm

1 stop5h 57m

$306

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Wed 4/8

8:55 am-10:14 pm

2 stops11h 19m

Sioux Falls Joe Foss Field

Thu 4/16

5:50 am-9:45 am

1 stop5h 55m

$354

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Wed 4/8

11:47 am-7:20 pm

1 stop5h 33m

Sioux Falls Joe Foss Field

Tue 4/14

5:15 am-10:45 am

1 stop7h 30m

$359

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Thu 1/1

1:25 pm-7:55 pm

1 stop28h 30m

Sioux Falls Joe Foss Field

Mon 1/5

10:40 pm-5:51 pm

1 stop21h 11m

$361

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Fri 2/6

3:30 pm-11:44 pm

1 stop6h 14m

Sioux Falls Joe Foss Field

Sun 2/8

6:00 am-9:55 am

1 stop5h 55m

$369

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Wed 4/8

3:44 pm-11:43 pm

1 stop5h 59m

Sioux Falls Joe Foss Field

Tue 4/14

5:50 am-2:38 pm

2 stops10h 48m

$374

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Sioux Falls from

How to get the cheapest flight ticket from Seattle to Sioux Falls

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 Sioux Falls?

The cheapest month to fly to Sioux Falls from Seattle is in October. Flight prices, which tend to average around $273, are often lower during this time because this is during the off-season. If you’re not able to fly to Sioux Falls in October, then November is your next best option. Flight prices from Seattle to Sioux Falls during November average around $286.

What is the cheapest day to depart on your flight to Sioux Falls?

The cheapest day to depart on your flight to Sioux Falls is on a Saturday when prices can be found for as low as $507. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $643.

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

Our most recent data shows that the best time of day to fly to Sioux Falls is in the evening. Flights from Seattle to Sioux Falls during this time can be as low as $318. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $703 on average. Flights to Sioux Falls from Seattle in the afternoon 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 Sioux Falls?

You are more likely to see cheaper flights to Sioux Falls from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Sioux Falls for around $424 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sioux Falls from Seattle for as low as $328 on momondo.

Can stopping save me money on Seattle to Sioux Falls flights?

You could potentially save up to 51% on your flight if you consider stops on a Seattle to Sioux Falls flight.

How have Seattle to Sioux Falls flight prices changed over time?

As of December 2025, prices for Seattle to Sioux Falls flights are approximately 101% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Sioux Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Sioux Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Sioux Falls (SEA to FSD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Sioux Falls

Fastest flight time

5h 33m

Direct flights

None
The fastest flight from Seattle to Sioux Falls takes 5h 33m
There are no direct flights from Seattle to Sioux Falls. There are no popular flight routes from Seattle to Sioux Falls.
Search flight deals

  • How far is Seattle/Tacoma Intl to Sioux Falls Joe Foss Field by plane?

    A flight from Seattle/Tacoma Intl to Sioux Falls Joe Foss Field will travel around 1262.9 mi. 5h 33m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Sioux Falls Joe Foss Field Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Sioux Falls Joe Foss Field Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Sioux Falls Joe Foss Field Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Sioux Falls Joe Foss Field Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Sioux Falls Joe Foss Field Airport.

  • What documentation or ID do you need to fly to Sioux Falls Joe Foss Field Airport?

    The travel and health documents required for your trip to Sioux Falls Joe Foss Field Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sioux Falls Joe Foss Field Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Seattle to Sioux Falls?

Best airlines flying from Seattle to Sioux Falls

Compare and see reviews for airlines that fly from Seattle to Sioux Falls with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $188Free CancellationRating
5.8
3,080 reviews
Search Frontier flights
DeltaPriceFrom $268Free CancellationRating
7.9
8,008 reviews
Search Delta flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights

Traveling to a place near Sioux Falls?

Book flights to Sioux Falls if you plan to visit one of these locations
Yankton
Marshall
Worthington

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Sioux Falls?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Sioux Falls for you.

Can I find flights from Seattle to Sioux Falls with flexible booking policies on momondo?

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

How can momondo help me find flights from Seattle to Sioux Falls?

Once all potential Seattle to Sioux Falls 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 Seattle to Sioux Falls right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Sioux Falls now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sioux Falls and let you know when they change.

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