FSD - DEN

$93 Find Cheap Flights from Sioux Falls to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux Falls to Denver departing on 6/3. 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 Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to Denver, 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 Sioux Falls to Denver, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$186
Typical prices: $284-$150
Frontier
Wed 6/17Mon 6/22
FSD - DEN • Non-stop
Cheapest one-way
$93
Typical prices: $118-$181
Frontier
Wed 6/3
FSD - DEN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier's Premium Bundle offers priority boarding.
United's Economy Plus provides extra legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $186 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines and Frontier. Average duration is 1h 55m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
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+1
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux Falls to Denver 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 Sioux Falls to Denver

Wed, Jun 17 - Mon, Jun 22
Frontier Logo
8:14 pm - 9:04 pm
FSD
-
DEN
1h 50mnonstop
Frontier Logo
4:42 pm - 7:19 pm
DEN
-
FSD
1h 37mnonstop
$186Frontier
Wed, Jun 17 - Wed, Jun 24
Frontier Logo
8:14 pm - 9:04 pm
FSD
-
DEN
1h 50mnonstop
Frontier Logo
4:42 pm - 7:19 pm
DEN
-
FSD
1h 37mnonstop
$188Frontier
Mon, Jun 1 - Wed, Jun 3
Frontier Logo
4:25 pm - 5:14 pm
FSD
-
DEN
1h 49mnonstop
Frontier Logo
3:57 pm - 6:33 pm
DEN
-
FSD
1h 36mnonstop
$196Frontier
Mon, Jun 22 - Wed, Jun 24
Frontier Logo
8:14 pm - 9:04 pm
FSD
-
DEN
1h 50mnonstop
Frontier Logo
4:42 pm - 7:19 pm
DEN
-
FSD
1h 37mnonstop
$202Frontier
Mon, Jun 22 - Wed, Jun 24
Frontier Logo
8:14 pm - 9:04 pm
FSD
-
DEN
1h 50mnonstop
Frontier Logo
4:42 pm - 7:19 pm
DEN
-
FSD
1h 37mnonstop
$204Frontier
Wed, Jul 8 - Wed, Jul 15
Frontier Logo
8:14 pm - 9:07 pm
FSD
-
DEN
1h 53mnonstop
Frontier Logo
4:42 pm - 7:23 pm
DEN
-
FSD
1h 41mnonstop
$208Frontier
Mon, Jun 8 - Mon, Jun 15
Frontier Logo
4:25 pm - 5:14 pm
FSD
-
DEN
1h 49mnonstop
Frontier Logo
4:42 pm - 7:19 pm
DEN
-
FSD
1h 37mnonstop
$212Frontier
Wed, Jun 17 - Fri, Jun 19
Frontier Logo
8:14 pm - 9:04 pm
FSD
-
DEN
1h 50mnonstop
Frontier Logo
4:42 pm - 7:19 pm
DEN
-
FSD
1h 37mnonstop
$214Frontier
Fri, Aug 14 - Mon, Aug 17
Frontier Logo
8:14 pm - 9:07 pm
FSD
-
DEN
1h 53mnonstop
Frontier Logo
4:42 pm - 7:23 pm
DEN
-
FSD
1h 41mnonstop
$215Frontier
Wed, Jun 17 - Wed, Jun 24
Multiple Airlines Logo
3:36 pm - 12:38 am
FSD
-
DEN
10h 02m
1 stop
Multiple Airlines Logo
4:42 pm - 7:19 pm
DEN
-
FSD
1h 37mnonstop
$217Multiple Airlines
Booking Insights

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

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

How much is a round-trip flight from Sioux Falls to Denver?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sioux Falls to Denver departing in June.

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

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

If you are looking for a flight deal from Sioux Falls to Denver, look for departures on Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Denver, Thursday is the cheapest day to fly and Tuesday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sioux Falls to Denver, 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 Sioux Falls to Denver is July, where tickets cost $158 (return) on average. On the other hand, the most expensive months are April and January, where the average cost of round-trip tickets is $336 and $292 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sioux Falls to Denver, 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 Sioux Falls to Denver, you should book around 2 weeks before departure, which saves you about 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Expert advice

Expert advice for your flight from Sioux Falls to Denver

 
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 seasonMarch
Cheapest flight$93
Best time to beat the crowds but there is an average 23% increase in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Sioux Falls to Denver

When to book flights from Sioux Falls to Denver

Are your dates flexible? Find out the best times to travel from Sioux Falls to Denver 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 Sioux Falls to Denver

  • What transport options do I have from Denver Airport to downtown?

    You can access downtown Denver from DEN Airport using public transport. Train A of the Regional Transportation District, with a 20 minutes interval, connects DEN Airport Station to Union Station Tract 1 in downtown Denver. The bus runs hourly and links DEN Airport Station Gate 9 to Civic Center Station Gate 5. Denver Airport Shuttle of Estes Park Shuttle connects DEN Airport to downtown Denver and operates four times daily.

  • Which airlines from Sioux Falls to Denver practice sustainability?

    American Airlines has the most eco-friendly practices in the FSD to DEN route. Some of these practices include the replacement of their old aircraft with new modernized fuel-efficient fleets, using environmentally friendly aviation fuel, and opting for more direct routes. They also employ recycling programs such as single-plastic use and net-zero supply chain.

  • Which airlines offer accessible services from Sioux Falls to Denver?

    Delta has established services and amenities to accommodate persons with special needs traveling from FSD to DEN. They include allowing these passengers to board with their trained service animals at no extra charge and providing accessible restrooms. They offer assistance to these passengers during navigation, boarding, and deplaning. Additionally, they offer special seats such as aisle seats for easier access and bulkhead seats for more space and legroom.

  • Can a minor travel unaccompanied from Sioux Falls to Denver?

    United can allow minors aged 5 to 14 to travel unaccompanied from FSD to DEN for some fee. Once you have presented necessary travel documentation, such as a passport and visa for your minor at the check-in, they are provided with unique identification, such as a badge and tracking wristband for extra security. The airline has on-ground and in-flight crew staff who assist your minor from check-in until they are handed over to the receiving adult at the destination airport.

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

    In the last 3 days, the lowest price for a flight from Sioux Falls to Denver was $93 for a one-way ticket and $186 for a round-trip.

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

    No

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

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

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

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Sioux Falls to Denver flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Sioux Falls to Denver 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 $140 and an overall rating of 5.6.

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

    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 Sioux Falls to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Sioux Falls 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 Sioux Falls to Denver?

    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 Denver with an airline and back to Sioux Falls with another airline. Booking your flights between Sioux Falls and DEN 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 Sioux Falls to Denver?

    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 Denver from Sioux Falls 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 Sioux Falls to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $200 or less one-way and $336 or less round-trip.
  • Several flights have at least a layover from Sioux Falls Regional Airport (FSD) to Denver International Airport (DEN). Some of the airports to expect layovers include Minneapolis (MSP) by Delta, Chicago (ORD) by American, and Dallas (DFW) by American.
  • DEN is a hub for United Airlines, Denver Air Connections, and Southern Airways Express. Consider flying with Delta since it operates many flights allowing flexibility in the choice of flight that fits your budget and schedule.
  • Consider traveling with United to enjoy convenience from FSD to DEN if you are traveling with your child. The airline offers a range of family friendly services, including in-flight entertainment tailored with child-friendly content and a kid’s pack with items such as crayons and games to keep the kids engaged throughout the flight.
  • Frontier offers a range of unique meals to its passengers traveling from FSD to DEN. They include diabetic, child-friendly, gluten-free, vegan, lactose-free, and low-fat meals personalized to meet the dietary requirements of different passengers.
  • Frontier airline offers the highest carry-on baggage policy among the airlines flying FSD to DEN route. Other than a personal item, they allow you to bring a standard carry-on bag as long as it has 24 x 16 x 10 inches dimension limits and can fit in their overhead compartment. Its weight must also not exceed 35 lb.

Prefer to fly direct from Sioux Falls to Denver?

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

Direct departures

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

United Airlines

United Airlines

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

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

United Airlines

United Airlines

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top airlines flying from Sioux Falls to Denver

 
See real verified KAYAK customer reviews for airlines flying from Sioux Falls to Denver. 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 Sioux Falls to Denver? 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 9704 reviews
7.3Comfort
6.6Food
7.1Entertainment
7.7Boarding
8.1Crew
Airline reviews

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

6.0 GoodAnonymous, May 2026
OMA - DEN
Read more United Airlines reviews

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

The entertainment options on the seat back video boards were nice.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

It was an early flight and most people napped/slept and the crew let us which was nice.

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

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.

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

Information on your arrival and departure airports