Cheap flights from Seattle to Sioux Falls from $117
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 8/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from Seattle to Sioux Falls
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Frontier flights from Seattle to Sioux Falls
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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 typical price of a round-trip flight between Seattle and Sioux Falls?
What is the cheapest month to fly to Sioux Falls?
The cheapest month to fly to Sioux Falls from Seattle is in January. Flight prices, which tend to average around $377, are often lower during this time because this is during the off-season. If you’re not able to fly to Sioux Falls in January, then June is your next best option. Flight prices from Seattle to Sioux Falls during June average around $400.
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 $489 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 $340 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Sioux Falls Joe Foss Field?
Frontier, Delta, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Sioux Falls Joe Foss Field
What airlines fly to Sioux Falls?
United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Sioux Falls from Seattle according to our data. United Airlines is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Sioux Falls. Keep in mind that there are 4 different airlines that fly to Sioux Falls on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Sioux Falls
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
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 06m 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?
There are 4 operators available for flights from Seattle/Tacoma Intl Airport to Sioux Falls Joe Foss Field Airport as of July 2025.
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?
momondo data reveals that the most frequently booked airline on the route from Seattle to Sioux Falls is United Airlines, representing 29% of all bookings. The subsequent popular airlines are Delta at 27%, American Airlines at 23%, and Frontier at 21%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $128 | Free Cancellation | Rating 5.9 3,284 reviews | |||
| PriceFrom $268 | Free Cancellation | Rating 8.0 7,983 reviews | |||
| PriceFrom $268 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $353 | Free Cancellation | Rating 7.4 8,861 reviews |
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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.