Title: Cheap Flights from Seattle to Sioux Falls (SEA to FSD) - Expedia.co.uk ![](https://images.trvl-media.com/place/6059512/118f443d-05c3-4e32-9f38-df169d7274ba.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Seattle (SEA) to Sioux Falls (FSD) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Seattle-Tacoma International Airport (SEA) to Sioux Falls Regional Airport (FSD) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:fsd,departure:10/10/2025TANYT&leg2=from:fsd,to:sea,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:fsd,departure:10/10/2025TANYT&leg2=from:fsd,to:sea,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:fsd,departure:10/10/2025TANYT&leg2=from:fsd,to:sea,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:fsd,departure:10/10/2025TANYT&leg2=from:fsd,to:sea,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sea,to:fsd,departure:10/10/2025TANYT&leg2=from:fsd,to:sea,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Find the cheapest month to fly from Seattle (SEA) to Sioux Falls (FSD) ### May is typically the cheapest month to fly From £154 - £449 per traveller. Flight from Seattle to Sioux Falls route information | Origin airport | Seattle - Tacoma Intl. | | --- | --- | | Destination airport | Sioux Falls Regional | | Distance | 2016 km | ## Compare flights from Seattle to Sioux Falls easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seattle to Sioux Falls. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Sioux Falls Regional in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Seattle - Tacoma Intl. to Sioux Falls Regional.   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Seattle - Tacoma Intl. (SEA) to Sioux Falls Regional (FSD) The easiest way to view the best deals on flights from Seattle to Sioux Falls today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Seattle - Tacoma Intl. to Sioux Falls Regional start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Seattle and Sioux Falls - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Seattle to Sioux Falls flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Seattle - Tacoma Intl. to Sioux Falls Regional for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Frequently asked questions ### How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to FSD? > Round-trip journeys between SEA and Sioux Falls Regional Airport (FSD) start from . This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to Joe Foss Field? > Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033). ### How do I find cheap flights from Sea-Tac Airport to Joe Foss Field that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to Sioux Falls Regional Airport (FSD) flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Sioux Falls Regional Airport (FSD)? > It's around 2,000 kilometres between Seattle - Tacoma Intl. Airport (SEA) and Joe Foss Field, so you'll be flying for a while. Keep yourself entertained with things like playing cards (if you're travelling with friends) or a thrilling novel. ### Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to FSD? > Flying directly between SEA and Joe Foss Field isn't possible at the moment. However, you'll still be able to book a flight to Sioux Falls with at least one stop. ### Are Sea-Tac Airport to Sioux Falls Regional Airport (FSD) flight tickets cheaper when they're purchased at the last minute? > Fares from Sea-Tac Airport to Joe Foss Field are available up to a year before departure on Expedia. And although you may occasionally score a fantastic last-minute deal, it's not something you should bank on. Also, booking your flights well in advance means you'll have more choices — and you can avoid getting stuck in the dreaded middle seat! 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