$324 Cheap Flights from Spokane (GEG) to Sioux Falls (FSD)

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Spokane (GEG) to Sioux Falls (FSD) at a glance

Travel between Spokane (GEG) and Sioux Falls (FSD) with a range of airlines offering convenient options for this domestic short-haul route. Discover cheap flights from Spokane to Sioux Falls by comparing itineraries from various full-service carriers, ensuring you find a plan that aligns with your budget and schedule. Get ready to explore the iconic attractions and neighborhoods of Sioux Falls as you plan your trip from Spokane International Airport to Sioux Falls Regional Airport.

• Fastest flight duration: around 4 hours in-flight, plus roughly 1h 30m layover with one stop
• Route distance: roughly 1,000 miles (1,610 km)
• Flights per week: around 9 departures on average
• Typical fares (one-way): economy tickets often range from $125–$490, depending on seasonality and how far ahead you book

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

According to recent traveler bookings, here are the top airlines favored for routes from Spokane to Sioux Falls, primarily offering one-stop service. Common layover points include Denver International Airport (DEN) with an approximate 1 hour and 15-minute layover, Minneapolis-St. Paul International Airport (MSP) at about 2 hours and 45 minutes, and Dallas-Fort Worth International Airport (DFW) with roughly a 55-minute layover. This variety allows you to tailor your travel plans by considering price, total travel time, and cabin class for the ideal itinerary.

• United: This full-service airline provides one-stop flights, boasting one-way fares generally between $125 and $550. United represents about 51% of departures on this route, with an in-flight duration of 4 hours and an overall travel time of approximately 5 hours and 30 minutes, including layover time.
• Delta: Operating as a full-service carrier, Delta offers one-stop service with one-way ticket prices typically ranging from $125 to $460. It accounts for roughly 41% of the departures along this route, featuring a flight time of 4 hours and a total journey time of around 5 hours and 30 minutes, factoring in the layover.
• American Airlines: This full-service airline provides one-stop service, with one-way fares usually falling between $130 and $325. American Airlines covers about 8% of departures on this route, with a flight duration of 4 hours and an estimated total travel time of about 5 hours and 30 minutes, including layover time.

Best time to fly from Spokane (GEG) to Sioux Falls (FSD)

The most popular months for travelers flying from Spokane to Sioux Falls are March, May, and July, when peak temperatures in Sioux Falls reach up to 73.2°F in July. If you prefer quieter travel, consider September, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 64.6°F. For better deals, October usually offers the lowest average one-way fare around $219. Flight availability peaks in May and October, with approximately 10 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 7 flights per week.

• Cheapest time to fly: October usually offers good deals with average one-way fare around $219, roughly 17% cheaper than the yearly average.
• More budget-friendly months to fly: May, June, and March typically offer average one-way fares roughly ranging from $224 to $240.
• Most flight options: May and October have the highest number of flights from Spokane to Sioux Falls, with approximately 10 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Spokane (GEG) to Sioux Falls (FSD)

• Pullman to Sioux Falls (PUW-FSD): Located approximately 64 miles from Spokane International Airport (GEG), Pullman - Moscow Regional Airport (PUW) provides a convenient travel option for those heading to Sioux Falls.
• Spokane to Sioux City (GEG-SUX): Sioux Gateway Airport (SUX) is about 83 miles from Sioux Falls Regional Airport (FSD), making it a viable choice for travelers flying from Spokane.
• Lewiston to Sioux Falls (LWS-FSD): Nez Perce County Regional Airport (LWS), situated roughly 90 miles from Spokane International Airport (GEG), offers another route for flights into Sioux Falls.

How to find the best prices for flights from Spokane (GEG) to Sioux Falls (FSD)

Getting some of the best deals on flights from Spokane to Sioux Falls is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which aligns with when most travelers make their reservations. Departures from 12 PM to 6 PM often offer lower prices and are the most popular flight times. Additionally, flying on Tuesday generally results in cheaper prices, although Wednesday is the most favored travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Sioux Falls hotel and flight deals.
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Sioux Falls Regional Airport from Spokane International Airport

Sioux Falls welcomes travelers from Spokane with a range of transport options based on price, convenience, and proximity. Here's how to reach Sioux Falls efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Sioux Falls, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
• Car rental: Renting a car from Sioux Falls Regional Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Sioux Falls Regional Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

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 May. 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 $324 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.

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 from $324 and cheap return flights $379 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.