$74 Cheap Frontier Airlines flights Sioux Falls (FSD) to Denver (DEN)

Finding cheap one-way Frontier Airlines flights from FSD to DEN from $74 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Alternatively, check out our affordable round-trip fares from $129 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the most affordable months to travel to Denver with Frontier Airlines. You could also find great prices on return and one-way tickets in November.

Look for affordable Frontier Airlines flights from Sioux Falls Regional Airport (FSD) to Denver Intl. Airport (DEN) one to three months ahead of your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the best day to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Frontier Airlines has direct flights from Sioux Falls Regional Airport (FSD) to Denver Intl. Airport (DEN), with 2 weekly departures. Just apply the “Nonstop” and “Airline” filters during your search on Expedia to find all direct Frontier Airlines flights to DEN.

It takes approximately 1h 51m to travel nonstop from Sioux Falls Regional Airport (FSD) to Denver Intl. Airport (DEN) with Frontier Airlines.

Leaving FSD at 6:43PM UTC-6, the first Frontier Airlines flight to DEN lands at 7:34PM UTC-7. Traveling earlier in the day means you’ll be less likely to experience cancellations.* Prefer to travel later? The last Frontier Airlines flight from FSD to DEN departs at 6:43PM UTC-6 and touches down at 7:34PM UTC-7.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Frontier Airlines flights from Sioux Falls Regional Airport (FSD) to Denver land at Denver Intl. Airport (DEN). This is the main entry point to this city.

A rewarding loyalty program and the ability to collect points through Frontier Miles are the start of the reasons to travel from FSD to DEN with Frontier Airlines. Plus, when you join Expedia’s free One Key™ program, you can earn OneKeyCash™* alongside Frontier Airlines’s loyalty program earnings. It’s yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Frontier Airlines typically uses Airbus A320neo planes for flights from Sioux Falls Regional Airport (FSD) to Denver Intl. Airport (DEN). Remember that aircraft type can differ depending on operational requirements, so the plane you catch might be different on your day of travel.

Changes are usually free within 24 hours of making your booking, but your airline may add a charge after that time. For further details about altering your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your plans without being charged, check the “Changes included” or “No cancel fee” filter when organizing your next getaway.