DEN - FSD

$44 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 12/29. 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
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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

Thu, Dec 11 - Sun, Dec 14
Frontier Logo
10:52 am - 1:31 pmDEN-FSD
1h 39mnonstop
Frontier Logo
2:26 pm - 3:13 pmFSD-DEN
1h 47mnonstop
$94Frontier
Find Deal
Fri, Feb 20 - Mon, Feb 23
Frontier Logo
4:45 pm - 7:22 pmDEN-FSD
1h 37mnonstop
Frontier Logo
8:25 pm - 9:09 pmFSD-DEN
1h 44mnonstop
$121Frontier
Find Deal
Mon, Nov 10 - Mon, Nov 17
Frontier Logo
11:08 am - 1:47 pmDEN-FSD
1h 39mnonstop
Frontier Logo
2:32 pm - 3:24 pmFSD-DEN
1h 52mnonstop
$130Frontier
Find Deal
Thu, Dec 11 - Mon, Dec 15
Multiple Airlines Logo
10:52 am - 1:31 pmDEN-FSD
1h 39mnonstop
Multiple Airlines Logo
11:55 am - 3:58 amFSD-DEN
17h 03m1 stop
$178Multiple Airlines
Find Deal
Fri, Dec 5 - Sat, Dec 6
United Airlines Logo
5:48 pm - 8:21 pmDEN-FSD
1h 33mnonstop
United Airlines Logo
9:00 am - 9:59 amFSD-DEN
1h 59mnonstop
$189United Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Multiple Airlines Logo
11:08 am - 1:47 pmDEN-FSD
1h 39mnonstop
Multiple Airlines Logo
1:34 pm - 3:59 amFSD-DEN
15h 25m1 stop
$192Multiple Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
United Airlines Logo
9:01 pm - 11:44 pmDEN-FSD
1h 43mnonstop
United Airlines Logo
6:00 am - 7:05 amFSD-DEN
2h 05mnonstop
$204United Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 6
Delta Logo
4:15 pm - 11:12 pmDEN-FSD
5h 57m1 stop
Delta Logo
8:01 am - 12:51 pmFSD-DEN
5h 50m1 stop
$209Delta
Find Deal
Wed, Nov 12 - Wed, Nov 19
Delta Logo
4:18 pm - 11:00 pmDEN-FSD
5h 42m1 stop
Delta Logo
1:30 pm - 7:31 pmFSD-DEN
7h 01m1 stop
$224Delta
Find Deal
Fri, Nov 28 - Tue, Dec 2
American Airlines Logo
6:00 am - 12:36 pmDEN-FSD
5h 36m1 stop
American Airlines Logo
1:16 pm - 5:52 pmFSD-DEN
5h 36m1 stop
$244American Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
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 $94 (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
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$94
Overall average: $284
Frontier
Thu 12/11Sun 12/14
DEN - FSD • Non-stop
Cheapest one-way
$44
Typical prices: $52-$274
Frontier
Mon 12/29
DEN - FSD • Non-stop
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!
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 $156 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $284 and $283 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 4 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Sioux Falls

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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.

Read more about Frontierby Stefanie Waldek
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$44
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 6% 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 $44 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 $293 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 $146 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 $146 or less one-way and $127 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

Frontier, United Airlines

Frontier, 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

Frontier, United Airlines

Frontier, 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 8998 reviews
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
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 2025DEN - 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

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

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

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

Information on your arrival and departure airports

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