DEN - FSD

$46 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 1/8. 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
$94
Overall average: $271
Frontier
Mon 1/5Sun 1/11
DEN - FSD • Non-stop
Cheapest non-stop
$94
Typical prices: $143-$452
Frontier
Mon 1/5Thu 1/8
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
United Airlines
Cheapest • from $189 (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 22% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 30% 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, Jan 5 - Sun, Jan 11
Frontier Logo
5:14 pm - 7:55 pm
DEN
-
FSD
1h 41mnonstop
Frontier Logo
8:26 pm - 9:10 pm
FSD
-
DEN
1h 44mnonstop
$94Frontier
Mon, Jan 5 - Fri, Jan 9
Multiple Airlines Logo
5:14 pm - 7:55 pm
DEN
-
FSD
1h 41mnonstop
Multiple Airlines Logo
9:31 pm - 10:03 am
FSD
-
DEN
13h 32m1 stop
$156Multiple Airlines
Fri, Jan 2 - Thu, Jan 8
Frontier Logo
5:14 pm - 7:55 pm
DEN
-
FSD
1h 41mnonstop
Frontier Logo
7:45 pm - 8:34 pm
FSD
-
DEN
1h 49mnonstop
$162Frontier
Mon, Jan 5 - Mon, Jan 12
Multiple Airlines Logo
5:14 pm - 7:55 pm
DEN
-
FSD
1h 41mnonstop
Multiple Airlines Logo
9:31 pm - 10:42 am
FSD
-
DEN
14h 11m1 stop
$165Multiple Airlines
Mon, Dec 22 - Sun, Jan 11
Frontier Logo
5:14 pm - 7:55 pm
DEN
-
FSD
1h 41mnonstop
Frontier Logo
8:26 pm - 9:10 pm
FSD
-
DEN
1h 44mnonstop
$171Frontier
Fri, Feb 27 - Mon, Mar 2
Multiple Airlines Logo
4:45 pm - 7:22 pm
DEN
-
FSD
1h 37mnonstop
Multiple Airlines Logo
8:27 pm - 8:24 pm
FSD
-
DEN
24h 57m1 stop
$182Multiple Airlines
Mon, Dec 22 - Mon, Jan 5
Frontier Logo
5:14 pm - 7:55 pm
DEN
-
FSD
1h 41mnonstop
Frontier Logo
8:50 pm - 9:34 pm
FSD
-
DEN
1h 44mnonstop
$184Frontier
Wed, Jan 14 - Wed, Jan 21
United Airlines Logo
10:03 am - 12:58 pm
DEN
-
FSD
1h 55mnonstop
United Airlines Logo
9:00 am - 10:06 am
FSD
-
DEN
2h 06mnonstop
$189United Airlines
Mon, Dec 22 - Sun, Jan 11
Frontier Logo
5:14 pm - 7:55 pm
DEN
-
FSD
1h 41mnonstop
Frontier Logo
8:26 pm - 9:10 pm
FSD
-
DEN
1h 44mnonstop
$201Frontier
Fri, Feb 27 - Mon, Mar 2
Multiple Airlines Logo
4:45 pm - 7:22 pm
DEN
-
FSD
1h 37mnonstop
Multiple Airlines Logo
6:09 pm - 11:54 am
FSD
-
DEN
18h 45m2 stops
$203Multiple Airlines
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 Thursday 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 $156 (return) on average. On the other hand, the most expensive months are March and January, where the average cost of round-trip tickets is $283 and $271 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 22% 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.
Airlines
United Airlines

United's Economy Plus offers up to six inches more legroom than standard economy seats.


Purchase Priority Boarding to ensure overhead bin space, placing you in Zone 2.

Frontier

Frontier's Premium Bundle offers priority boarding and extra legroom for just $20 more than Economy.


Avoid middle seats by selecting Economy Bundle for free Standard seat selection and carry-on bag.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and Frontier

Stefanie Waldek

Stefanie Waldek

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.

Read more

Good to know

Low seasonJanuary
Cheapest flight$46
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly and prices are also 23% 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 $46 for a one-way ticket and $94 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 Embraer 175 (Enhanced Winglets) 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 $296 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 $147 and an overall rating of 5.8.

  • 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 $119 or less one-way and $189 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 9093 reviews
7.3Comfort
7.7Boarding
8.1Crew
6.6Food
7.1Entertainment
Airline reviews

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

8.0 ExcellentJessica, Oct 2025
DEN - TUS
Read more United Airlines reviews

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

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

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

Information on your arrival and departure airports