
Popular airlines from Seattle-Tacoma International Airport (SEA) to Sioux Falls Regional Airport (FSD)
- Alaska Airlines
Alaska Airlines
- United
United
- American Airlines
American Airlines
- Delta
Delta
- Frontier Airlines
Frontier Airlines
- Plan, book, fly with confidence
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Cheap Flights from Seattle to Sioux Falls (SEA-FSD)
Prices were available within the past 7 days and start at $114 for one-way flights and $228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Seattle (SEA) to Sioux Falls (FSD)
November is typically the cheapest month to fly
Graph displaying average flight prices per month
Alternative airports near Sioux Falls
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Seattle - Tacoma Intl. |
Destination airport | Sioux Falls Regional |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, United |
Roundtrip price | $228 |
Distance | 1260 mi |
Seattle to Sioux Falls Flights
The cheapest times to fly from Seattle to Sioux Falls
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Sioux Falls are during the month of August. You can find some of the cheapest flights from Seattle to Sioux Falls with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Seattle to Sioux Falls
Sunday is one of the best days to book for cheap flights from Seattle to Sioux Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Seattle to Sioux Falls
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Sioux Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $114 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Sioux Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Sioux Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
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Top Routes from Seattle
- Seattle to Chicago (SEA - ORD)
- Seattle to Newark Liberty Intl. Airport (SEA - EWR)
- Seattle to San Diego (SEA - SAN)
- Seattle to Phoenix (SEA - PHX)
- Seattle to Los Angeles (SEA - LAX)
- Seattle to Honolulu (SEA - HNL)
- Seattle to Orange County (SEA - SNA)
- Seattle to New York (SEA - LGA)
- Seattle to Boston (SEA - BOS)
- Seattle to New York (SEA - JFK)
- Seattle to Kahului (SEA - OGG)
- Seattle to Tokyo (SEA - NRT)
Top Routes to Sioux Falls
- Chicago to Sioux Falls (ORD - FSD)
- Phoenix to Sioux Falls (PHX - FSD)
- San Diego to Sioux Falls (SAN - FSD)
- Newark Liberty Intl. Airport to Sioux Falls (EWR - FSD)
- Chicago to Sioux Falls (MDW - FSD)
- Los Angeles to Sioux Falls (LAX - FSD)
- Raleigh to Sioux Falls (RDU - FSD)
- Portland to Sioux Falls (PDX - FSD)
- Boston to Sioux Falls (BOS - FSD)
- New York to Sioux Falls (LGA - FSD)
- Salt Lake City to Sioux Falls (SLC - FSD)
- Denver to Sioux Falls (DEN - FSD)
Top Routes from Seattle
- Alaska Airlines Seattle to Chicago
- Alaska Airlines Seattle to Newark Liberty Intl. Airport
- Alaska Airlines Seattle to San Diego
- Alaska Airlines Seattle to Phoenix
- Alaska Airlines Seattle to Los Angeles
- Alaska Airlines Seattle to Honolulu
- Alaska Airlines Seattle to Orange County
- Alaska Airlines Seattle to New York
- Alaska Airlines Seattle to Boston
- Alaska Airlines Seattle to New York
Top Routes to Sioux Falls
- United Chicago to Sioux Falls
- Frontier Airlines Phoenix to Sioux Falls
- American Airlines San Diego to Sioux Falls
- United Newark Liberty Intl. Airport to Sioux Falls
- Delta Chicago to Sioux Falls
- Delta Los Angeles to Sioux Falls
- United Raleigh to Sioux Falls
- United Portland to Sioux Falls
- American Airlines Boston to Sioux Falls
- United Salt Lake City to Sioux Falls
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Seattle Paine Field Intl. Airport
Nearby Airports
- Boeing Field Airport (BFI)
- Seattle Paine Field Intl. Airport Airport (PAE)
- William R. Fairchild Intl. Airport (CLM)
- Lopez Island Airport (LPS)
- Friday Harbor Airport (FRD)
- Friday Harbor Sea Plane Base Airport (FBS)
- Bowerman Airport (HQM)
- Rosario Seaplane Base Airport (RSJ)
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- Roche Harbor Airport (RCE)
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