DEN - FSD

$43 Find Cheap Flights from Denver to Sioux Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Sioux Falls departing on 3/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sioux Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Sioux Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Sioux Falls, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$127
Overall average: $291
Frontier
Mon 3/16Mon 3/23
DEN - FSD • Non-stop
Cheapest one-way
$43
Typical prices: $92-$383
Frontier
Mon 3/30
DEN - FSD • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier's Premium Bundle adds legroom for $20 more.
United's Economy Plus gives six extra inches of legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $127 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 32% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sioux Falls!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Sioux Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Sioux Falls

Mon, Mar 16 - Mon, Mar 23
Frontier Logo
5:20 pm - 7:59 pm
DEN
-
FSD
1h 39mnonstop
Frontier Logo
8:54 pm - 9:49 pm
FSD
-
DEN
1h 55mnonstop
$127Frontier
Fri, Feb 20 - Mon, Feb 23
Frontier Logo
10:17 am - 12:56 pm
DEN
-
FSD
1h 39mnonstop
Frontier Logo
2:42 pm - 3:35 pm
FSD
-
DEN
1h 53mnonstop
$133Frontier
Mon, Mar 9 - Fri, Mar 13
Frontier Logo
5:20 pm - 7:59 pm
DEN
-
FSD
1h 39mnonstop
Frontier Logo
8:54 pm - 9:49 pm
FSD
-
DEN
1h 55mnonstop
$134Frontier
Thu, Feb 19 - Sun, Feb 22
Frontier Logo
10:42 am - 1:21 pm
DEN
-
FSD
1h 39mnonstop
Frontier Logo
2:16 pm - 3:09 pm
FSD
-
DEN
1h 53mnonstop
$138Frontier
Fri, Feb 20 - Sun, Feb 22
Frontier Logo
10:17 am - 12:56 pm
DEN
-
FSD
1h 39mnonstop
Frontier Logo
2:16 pm - 3:09 pm
FSD
-
DEN
1h 53mnonstop
$139Frontier
Fri, Feb 20 - Sun, Feb 22
Frontier Logo
10:17 am - 12:56 pm
DEN
-
FSD
1h 39mnonstop
Frontier Logo
2:16 pm - 3:09 pm
FSD
-
DEN
1h 53mnonstop
$147Frontier
Fri, Feb 20 - Sun, Feb 22
Frontier Logo
10:17 am - 12:56 pm
DEN
-
FSD
1h 39mnonstop
Frontier Logo
2:16 pm - 3:09 pm
FSD
-
DEN
1h 53mnonstop
$148Frontier
Thu, Feb 26 - Sun, Mar 1
Frontier Logo
10:42 am - 1:21 pm
DEN
-
FSD
1h 39mnonstop
Frontier Logo
2:16 pm - 3:09 pm
FSD
-
DEN
1h 53mnonstop
$150Frontier
Thu, Feb 26 - Sun, Mar 1
Frontier Logo
10:42 am - 1:21 pm
DEN
-
FSD
1h 39mnonstop
Frontier Logo
2:16 pm - 3:09 pm
FSD
-
DEN
1h 53mnonstop
$151Frontier
Sun, Feb 22 - Sun, Mar 1
Frontier Logo
10:42 am - 1:21 pm
DEN
-
FSD
1h 39mnonstop
Frontier Logo
2:16 pm - 3:09 pm
FSD
-
DEN
1h 53mnonstop
$155Frontier
Booking Insights

KAYAK's insights & trends for Denver to Sioux Falls flights

Get data-powered insights and trends into flights from Denver to Sioux Falls to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Sioux Falls?

The average price of all round-trip flights from Denver to Sioux Falls clicked on KAYAK for each day over the last 12 months.

When flying from Denver to Sioux Falls, you should consider leaving on a Monday and avoid Tuesdays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from Denver to Sioux Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Sioux Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Sioux Falls is July, where tickets cost $155 (return) on average. On the other hand, the most expensive months are January and March, where the average cost of round-trip tickets is $349 and $291 respectively.

How far in advance should I book a flight from Denver to Sioux Falls?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Sioux Falls, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Sioux Falls, you should book around 2 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Sioux Falls

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonJanuary
Cheapest flight$43
Best time to beat the crowds but there is an average 53% increase in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Denver to Sioux Falls

When to book flights from Denver to Sioux Falls

Are your dates flexible? Find out the best times to travel from Denver to Sioux Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Sioux Falls

  • What is the cheapest flight from Denver to Sioux Falls?

    In the last 3 days, the lowest price for a flight from Denver to Sioux Falls was $43 for a one-way ticket and $127 for a round-trip.

  • Do I need a passport to fly between Denver and Sioux Falls?

    No

  • Which airlines offer Wi-Fi service onboard planes from Denver to Sioux Falls?

    JetBlue, and Delta offer inflight Wi-Fi service on the Denver to Sioux Falls flight route.

  • Which aircraft models fly most regularly from Denver to Sioux Falls?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Denver to Sioux Falls flight route.

  • Which airline alliances offer flights from Denver to Sioux Falls?

    Star Alliance is the only airline alliance operating flights between Denver and Sioux Falls.

  • On which days can I fly direct from Denver to Sioux Falls?

    There are nonstop flights from Denver to Sioux Falls on a daily basis.

  • Which is the best airline for flights from Denver to Sioux Falls, United Airlines or Frontier?

    The two airlines most popular with KAYAK users for flights from Denver to Sioux Falls are United Airlines and Frontier. With an average price for the route of $283 and an overall rating of 7.4, United Airlines is the most popular choice. Frontier is also a great choice for the route, with an average price of $148 and an overall rating of 5.7.

  • How does KAYAK find such low prices on flights from Denver to Sioux Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Sioux Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Sioux Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux Falls from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Sioux Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux Falls with an airline and back to Denver with another airline. Booking your flights between Denver and FSD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Sioux Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux Falls from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Sioux Falls

  • Looking for a cheap flight? 25% of our users found flights on this route for $142 or less one-way and $201 or less round-trip.

Prefer to fly direct from Denver to Sioux Falls?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Sioux Falls Joe Foss Field.
Find which airlines fly direct from Denver Intl Airport to Sioux Falls Joe Foss Field Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Sioux Falls Joe Foss Field

Monday

Frontier, United Airlines

Frontier, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

Frontier, United Airlines

Frontier, United Airlines

Friday

Frontier, United Airlines

Frontier, United Airlines

Saturday

United Airlines

United Airlines

Sunday

Frontier, United Airlines

Frontier, United Airlines

See more direct flights

Direct returns

Sioux Falls Joe Foss Field to Denver Intl

Monday

Frontier, United Airlines

Frontier, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

Frontier, United Airlines

Frontier, United Airlines

Friday

Frontier, United Airlines

Frontier, United Airlines

Saturday

United Airlines

United Airlines

Sunday

Frontier, United Airlines

Frontier, United Airlines

See more direct flights

Reviews of the top airlines flying from Denver to Sioux Falls

 
See real verified KAYAK customer reviews for airlines flying from Denver to Sioux Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Sioux Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9219 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
8.1Crew
6.6Food
Airline reviews

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

2.0 MediocreSid, Dec 2025
DEN - BZN
Read more United Airlines reviews

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

Everything you need to know for your flight from Denver to Sioux Falls

Information on your arrival and departure airports