Cheap flights from Sioux Falls to Seattle from $136
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux Falls to Seattle departing on 7/28. 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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How to get the cheapest flight ticket from Sioux Falls to Seattle
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 Sioux Falls and Seattle?
What is the cheapest month to fly to Seattle?
In general, October is the cheapest month to fly from Sioux Falls to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $348. If you don’t want to visit Seattle in October, then you should wait until January to fly from Sioux Falls, when ticket prices are also cheap, with an average price of $381.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Sioux Falls is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $550. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Sioux Falls because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $754.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Sioux Falls at noon is the least expensive time of day to depart. momondo users have found prices as low as $527 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $594. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Sioux Falls when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $489 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Sioux Falls for as low as $337 on momondo.
What is the cheapest airline that flies from Sioux Falls Joe Foss Field to Seattle/Tacoma Intl?
Frontier, Delta, and United Airlines are the most popular carriers operating from Sioux Falls Joe Foss Field to Seattle/Tacoma Intl
What airlines fly to Seattle?
United Airlines, Delta and Frontier are the top three most popular airlines that fly to Seattle from Sioux Falls according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 4 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
When to book flights from Sioux Falls to Seattle
Cheap Sioux Falls to Seattle (FSD to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Sioux Falls to Seattle
How far is Sioux Falls Joe Foss Field to Seattle/Tacoma Intl by plane?
The straight-line distance from Sioux Falls Joe Foss Field to Seattle/Tacoma Intl is 1262.9 mi. By plane, this route typically takes 5h 49m.
When did momondo last update prices for flights from Sioux Falls Joe Foss Field Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Sioux Falls Joe Foss Field Airport to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Sioux Falls Joe Foss Field Airport to Seattle/Tacoma Intl Airport?
As of June 2025, there are 4 operators available to choose from for flights from Sioux Falls Joe Foss Field Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Sioux Falls Joe Foss Field Airport to Seattle/Tacoma Intl Airport?
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 Sioux Falls Joe Foss Field Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Sioux Falls to Seattle?
Based on momondo bookings for flights between Sioux Falls and Seattle, the leading airline is United Airlines, making up 38% of the total bookings. Other popular airlines include Delta with 29%, Frontier with 18%, and American Airlines with 16%.
Best airlines flying from Sioux Falls to Seattle
Compare and see reviews for airlines that fly from Sioux Falls to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $138 | Free Cancellation | Rating 5.9 3,290 reviews | |||
| PriceFrom $229 | Free Cancellation | Rating 8.0 7,973 reviews | |||
| PriceFrom $268 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $346 | Free Cancellation | Rating 7.4 8,852 reviews |
Traveling to a place near Seattle?
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Why should I use momondo to find a flight deal from Sioux Falls to Seattle?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Sioux Falls to Seattle. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Sioux Falls to Seattle with flexible booking policies on momondo?
momondo does allow users to show only those flights to Seattle from Sioux Falls which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Sioux Falls to Seattle?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Sioux Falls.
I’m not ready to book a flight from Sioux Falls to Seattle right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Sioux Falls to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.