$105 Cheap Flights from Spokane (GEG) to Sioux Falls (FSD)

View $105 flight on Wed, Jul 15, 2026Opens in a new window

Popular airlines from Spokane International Airport (GEG) to Sioux Falls Regional Airport (FSD)

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Cheap Flights from Spokane to Sioux Falls (GEG-FSD)

Prices were available within the past 7 days and start at $105 for one-way flights and $339 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jun 2 - Sat, Jun 6
GEG
Spokane
FSD
Sioux Falls
$339 Roundtrip, found 6 hours ago
$339
Roundtrip
found 6 hours ago
Select United flight, departing Tue, Jun 2 from Spokane to Sioux Falls, returning Sat, Jun 6, priced at $339 found 6 hours ago
United
Wed, Aug 5 - Wed, Aug 12
GEG
Spokane
FSD
Sioux Falls
$353 Roundtrip, found 3 days ago
$353
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 5 from Spokane to Sioux Falls, returning Wed, Aug 12, priced at $353 found 3 days ago
American Airlines
Tue, Jun 2 - Sat, Jun 6
GEG
Spokane
FSD
Sioux Falls
$354 Roundtrip, found 6 hours ago
$354
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Jun 2 from Spokane to Sioux Falls, returning Sat, Jun 6, priced at $354 found 6 hours ago
American Airlines
Tue, Jun 2 - Sat, Jun 6
GEG
Spokane
FSD
Sioux Falls
$369 Roundtrip, found 6 hours ago
$369
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Jun 2 from Spokane to Sioux Falls, returning Sat, Jun 6, priced at $369 found 6 hours ago
United
Wed, Jul 29 - Tue, Aug 4
GEG
Spokane
FSD
Sioux Falls
$371 Roundtrip, found 3 days ago
$371
Roundtrip
found 3 days ago
Select United flight, departing Wed, Jul 29 from Spokane to Sioux Falls, returning Tue, Aug 4, priced at $371 found 3 days ago
Delta
Tue, Jun 9 - Sun, Jun 14
GEG
Spokane
FSD
Sioux Falls
$371 Roundtrip, found 2 hours ago
$371
Roundtrip
found 2 hours ago
Select Delta flight, departing Tue, Jun 9 from Spokane to Sioux Falls, returning Sun, Jun 14, priced at $371 found 2 hours ago
United
Wed, Aug 5 - Wed, Aug 12
GEG
Spokane
FSD
Sioux Falls
$372 Roundtrip, found 3 days ago
$372
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 5 from Spokane to Sioux Falls, returning Wed, Aug 12, priced at $372 found 3 days ago
United
Fri, Jun 5 - Mon, Jun 8
GEG
Spokane
FSD
Sioux Falls
$373 Roundtrip, found 5 days ago
$373
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jun 5 from Spokane to Sioux Falls, returning Mon, Jun 8, priced at $373 found 5 days ago
United
Thu, Aug 27 - Sun, Aug 30
GEG
Spokane
FSD
Sioux Falls
$375 Roundtrip, found 3 days ago
$375
Roundtrip
found 3 days ago
Select United flight, departing Thu, Aug 27 from Spokane to Sioux Falls, returning Sun, Aug 30, priced at $375 found 3 days ago
Alaska Airlines
Tue, Jun 2 - Sat, Jun 6
GEG
Spokane
FSD
Sioux Falls
$439 Roundtrip, found 6 hours ago
$439
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Tue, Jun 2 from Spokane to Sioux Falls, returning Sat, Jun 6, priced at $439 found 6 hours ago

Alternative airports near Sioux Falls

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sioux Falls Regional FSD. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $627
FSD
Sioux Falls Regional
CheapestClosest
Average driving time to city center6 min
Flights from $627

Frequently asked questions

How much does a flight from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional) cost?
You can find cheap one-way flights and cheap return flights from $339 Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional) with Expedia. One-way flights typically cost between $136 and $1465, and return flights often range between $377 and $1850. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional)?
April is the cheapest month to fly from Spokane, WA (GEG) to Sioux Falls, SD (FSD), with average return fares around $331. This fare is approximately 25% lower than the average price throughout the year, as April typically has less travel activity. Other affordable months to consider are January and February.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional)?
Enter GEG to FSD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional)?
Frontier Airlines is one of the cheapest airlines offering connecting flights from Spokane Intl. (GEG) to Sioux Falls Regional (FSD) with a layover in Denver (DEN), with round-trip tickets starting from around $621. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional)?
To find a cheap flight from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional)?
The best time to fly from Spokane, WA (GEG) to Sioux Falls, SD (FSD) is typically in April or January. In April, you can expect prices around $331 for a return flight, making it a budget-friendly option. January is also a great choice for lower fares, as travel demand tends to be lower after the holiday season. Both months offer a good balance of price and availability, ensuring you have plenty of options.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional)?
The earliest flight from Spokane (GEG) to Sioux Falls (FSD) typically departs at around 12:55 AM, operated by American Airlines. This is a seasonal service active in January and December, and an early flight can help you make the most of your time in Sioux Falls. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional)?
Flying from GEG to FSD with a connection usually takes about 6 hours 50 minutes, traveling roughly 1,040 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional)?
First class is available on flights from GEG to FSD. First class cabins are available on:

  • United Airlines
  • Delta Air Lines
  • American Airlines

How do I earn miles on a Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional) flight with Expedia?
It's easy to earn miles on a Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Sioux Falls from Spokane Intl. (GEG)?
From Spokane Intl. (GEG), you can fly into Sioux Falls Regional (FSD) to reach Sioux Falls. Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Denver Intl. (DEN), San Francisco Intl. (SFO) before reaching Sioux Falls. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional) at the last minute?
Typically, booking a last minute flight from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional) flight and hotel package?
Securing a Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional) Sioux Falls Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional)?
If you booked your Spokane, WA (GEG-Spokane Intl.) to Sioux Falls, SD (FSD-Sioux Falls Regional) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Spokane Intl.
Destination airport
Sioux Falls Regional
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$338
Distance
1040 mi

Book with confidence

Spokane to Sioux Falls Flights

The cheapest times to fly from Spokane 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 Spokane to Sioux Falls are during the month of June. You can find some of the cheapest flights from Spokane to Sioux Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Spokane to Sioux Falls

Sunday is one of the best days to book for cheap flights from Spokane 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 Spokane 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 Spokane to Sioux Falls in 2026. You can also book with separate airlines for your outbound and return journeys, from $105 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 Spokane 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 Spokane 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.

 

Spokane to Sioux Falls Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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