$44 Cheap Flights from Denver (DEN) to Sioux Falls (FSD)

View $44 flight on Mon, Dec 29, 2025Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD)

Cheap Flights from Denver to Sioux Falls (DEN-FSD)

Prices were available within the past 7 days and start at $44 for one-way flights and $104 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Dec 11 - Sun, Dec 14
DEN
Denver
FSD
Sioux Falls
$104 Roundtrip, found 4 hours ago
$104
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Dec 11 from Denver to Sioux Falls, returning Sun, Dec 14, priced at $104 found 4 hours ago
Frontier Airlines
Thu, Jan 15 - Sun, Jan 18
DEN
Denver
FSD
Sioux Falls
$113 Roundtrip, found 19 hours ago
$113
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Thu, Jan 15 from Denver to Sioux Falls, returning Sun, Jan 18, priced at $113 found 19 hours ago
Frontier Airlines
Thu, Nov 13 - Mon, Nov 24
DEN
Denver
FSD
Sioux Falls
$142 Roundtrip, found 2 days ago
$142
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Nov 13 from Denver to Sioux Falls, returning Mon, Nov 24, priced at $142 found 2 days ago
Frontier Airlines
Mon, Nov 3 - Fri, Nov 14
DEN
Denver
FSD
Sioux Falls
$143 Roundtrip, found 4 days ago
$143
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, Nov 3 from Denver to Sioux Falls, returning Fri, Nov 14, priced at $143 found 4 days ago
Frontier Airlines
Mon, Dec 29 - Fri, Jan 2
DEN
Denver
FSD
Sioux Falls
$144 Roundtrip, found 9 hours ago
$144
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Mon, Dec 29 from Denver to Sioux Falls, returning Fri, Jan 2, priced at $144 found 9 hours ago
Frontier Airlines
Thu, Dec 11 - Fri, Jan 2
DEN
Denver
FSD
Sioux Falls
$147 Roundtrip, found 7 hours ago
$147
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Dec 11 from Denver to Sioux Falls, returning Fri, Jan 2, priced at $147 found 7 hours ago
Frontier Airlines
Fri, Feb 20 - Mon, Feb 23
DEN
Denver
FSD
Sioux Falls
$153 Roundtrip, found 1 day ago
$153
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Feb 20 from Denver to Sioux Falls, returning Mon, Feb 23, priced at $153 found 1 day ago
United
Fri, Feb 13 - Sun, Feb 15
DEN
Denver
FSD
Sioux Falls
$179 Roundtrip, found 3 days ago
$179
Roundtrip
found 3 days ago
Select United flight, departing Fri, Feb 13 from Denver to Sioux Falls, returning Sun, Feb 15, priced at $179 found 3 days ago
American Airlines
Tue, Feb 24 - Sat, Feb 28
DEN
Denver
FSD
Sioux Falls
$199 Roundtrip, found 6 hours ago
$199
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Feb 24 from Denver to Sioux Falls, returning Sat, Feb 28, priced at $199 found 6 hours ago
Delta
Fri, Feb 27 - Tue, Mar 3
DEN
Denver
FSD
Sioux Falls
$204 Roundtrip, found 6 days ago
$204
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Feb 27 from Denver to Sioux Falls, returning Tue, Mar 3, priced at $204 found 6 days ago

Find the cheapest month to fly from Denver (DEN) to Sioux Falls (FSD)

March is typically the cheapest month to fly

From $58 - $427 per traveler.

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 $204
FSD
Sioux Falls Regional
CheapestClosest
Average driving time to city center6 min
Flights from $204
Flights from Denver (DEN) to Sioux Falls (FSD)
Origin airport
Denver Intl.
Destination airport
Sioux Falls Regional
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$104
Distance
483 mi
Average flight time
2 hours 41 mins

Denver to Sioux Falls Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Denver 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 Denver 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 Denver to Sioux Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $44 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 Denver 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 Denver 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 Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD) cost?
Get a cheap one-way flight from $44 or cheap return flight from $104 from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD)?
December is the least expensive month to fly from DEN to FSD. Avoiding peak travel times is often the key to better flight prices.
Which airlines fly direct from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD)?
If you're departing from Denver Intl. Airport (DEN), you can hop on a direct flight to Sioux Falls Regional Airport (FSD) with United Airlines.
What is the cheapest airline that flies from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD)?
Frontier Airlines and United Airlines are popular airlines offering reasonable fares. Don't forget that flight prices from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD) can change depending on demand, travel dates and how early you book. With Expedia's filter tool, you can easily find a DEN to FSD flight that matches your preferences and budget.
How many flights per day from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD)?
With an average of 4 nonstop flights departing from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD) every day, you'll be off on your next adventure in no time.
What are the most popular departure times for flights from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD)?
Flights between DEN and FSD are their busiest at 9 AM. If you're after a more relaxed trip and possibly cheaper prices, look for a departure outside the usual busy windows.
What day of the week has the most flights from DEN to FSD?
If you jet off on a Monday, you'll get the widest range of options for flights from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD).
What is the earliest flight from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD)?
Catch the earliest flight at around 9:55AM UTC-7, leaving from Denver Intl. Airport (DEN). You'll be traveling for approximately 1h 48m, touching down at Sioux Falls Regional Airport (FSD) at approximately 12:43PM UTC-6.
How long does it take to fly from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD)?
Flights from DEN to FSD have an average travel time of 1 hour and 44 minutes. The distance between these two airports is 480 mi.
What airline has the least delays from DEN to FSD?
Consider traveling with Frontier Airlines if you'd like to fly straight from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD) without any interruptions. This airline has the strongest track record for punctuality, with an on-time score of 82%. Want to be notified if anything changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD)?
Opt for a flight from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Sioux Falls from Denver Intl. Airport (DEN)?
Sioux Falls Regional Airport (FSD) is the only airport in Sioux Falls with direct flights from Denver Intl. Airport (DEN). Explore the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD) last-minute?
Last-minute fares from DEN to FSD are generally more expensive. To secure the lowest rates, start looking for flights early. That being said, if your travel plans are flexible, it's possible to land a cheap fare right before your journey.
Is it cheaper to book a DEN to FSD flight and hotel package?
Compared with arranging hotels and flights separately, booking a DEN to FSD flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one convenient place takes the hassle out of travel planning. Just secure your flights and select from our wide range of hotels, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Sioux Falls Regional Airport (FSD)?
If you reserved your DEN to FSD flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.