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Cheap Flights from Sioux Falls to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Denver
Denver2 stops$254
Denver
Denver2 stops$254
Booking Insights

Price, demand and travel trends for Sioux Falls to Colorado flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Sioux Falls to Colorado recently?

The cheapest fare from Sioux Falls to Colorado in the last week was $254 round-trip, to Denver Intl (DEN).

How do fares into airports in Colorado compare?

According to KAYAK data from the last 12 months, the cheapest airports to fly into Colorado from Sioux Falls are:

• Denver Intl (DEN) (avg. price $303)
• Montrose County (MTJ) (avg. price $383)
• Vail Eagle County (EGE) (avg. price $408)

Are flights from Sioux Falls to Colorado cheaper or more expensive than last year?

Fares from Sioux Falls to Colorado are about 13% higher than they were in November last year, averaging $304 round-trip.

What's the cheapest month to fly from Sioux Falls to Colorado?

February is typically the cheapest month to fly from Sioux Falls to Colorado, with round-trip fares averaging $193. November and April are usually the most expensive, averaging $377 and $356, respectively.

How do fares from Sioux Falls to Colorado vary by day of the week?

On average, Thursday is the cheapest day to fly from Sioux Falls to Colorado and Tuesday is the most expensive. Looking at the past 12 months of KAYAK data, it's 25% more expensive to fly on a Tuesday compared to Thursday.

What's the best time of day to fly from Sioux Falls to Colorado?

It's cheapest to fly to Colorado in the afternoon with average prices of $296. The night is the most expensive time to fly, with average prices of $347.

What's the best time to book a flight from Sioux Falls to Colorado?

Book your flights 14 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 37% compared to booking at the last minute (within 2 weeks of departure).

Key details for Sioux Falls to Colorado flights

Low season

February

Cheapest flight

$120
Beat the crowds with an average 9% drop in travelers.
The most popular month to fly with an average 9% increase in travelers.
One-way flight from Sioux Falls to Denver

Your Sioux Falls to Colorado flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Sioux Falls to Colorado?

    Fares from Sioux Falls to Colorado are around their usual level right now. A round-trip under $252 is considered a good deal, so it's worth keeping an eye out, or setting a Price Alert to catch fare changes.

  • How much should I budget for a flight from Sioux Falls to Colorado?

    Over the past 12 months, round-trip fares from Sioux Falls to Colorado have typically cost between $252 and $419.

  • What are the main airports serving Colorado?

    Colorado has 16 airports. 90% of KAYAK users choose Denver Intl (DEN) as their arrival airport.

  • Which airlines fly nonstop from Sioux Falls to Colorado?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from Sioux Falls to Colorado: United Airlines.

  • Which destinations in Colorado can I fly nonstop from Sioux Falls?

    Based on the flight schedule for the next 3 months, you can fly nonstop from Sioux Falls to just one destination in Colorado: Denver.

  • Is it cheaper to fly with a layover from Sioux Falls to Colorado?

    No, nonstop flights from Sioux Falls to Colorado are typically the cheaper option, averaging $300 over the past 12 months.

  • How long is a flight from Sioux Falls to Colorado?

    Nonstop flights from Sioux Falls to Colorado take 2h 04m on average. All flights fly into Denver Intl (DEN).

  • Which cabin classes are available from Sioux Falls to Colorado?

    On flights from Sioux Falls to Colorado you can book Economy Class or First Class.

  • What are some popular landmarks around Colorado?

    Colorado is home to many popular sights. KAYAK travelers' favorites include:

    • Colorado Convention Center
    • Coors Field
    • Ball Arena
    • 16th Street Mall

  • What are the earliest and latest flights from Sioux Falls to Colorado?

    The earliest nonstop flight from Sioux Falls to Colorado departs at 5:45 am and the latest leaves at 5:22 pm. Nonstop flights take about 2h 04m.

Your guide to booking Sioux Falls to Colorado flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 14 weeks before your trip. KAYAK data shows fares in this window are around 37% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • Flexible with your dates? Fly in February to save some money. It's typically the cheapest month on this route, while flights in November will cost you the most.
  • Fly out on a Thursday to get the cheapest fares. Avoid Tuesday flights, which are about 25% more expensive.
  • If you're watching your budget, fly into Denver Intl (DEN) which has the lowest average airfare in the region. Just remember to budget for any onward travel by bus, car or domestic flight.
  • Start your trip in Denver, the most popular destination in Colorado. From there, it's easy to continue on to other popular spots such as Colorado Springs, Estes Park and Aspen.
  • Whether you're trying to save time or money, Denver Intl (DEN) is usually your best option from Sioux Falls.

Reviews of the top airlines flying from Sioux Falls to Colorado

 
Need help choosing which airline to fly with from Sioux Falls to Colorado? 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.
7.3
United AirlinesOverall score based on 10492 reviews
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding
6.7Food
Airline reviews

We sat on the tarmac in Denver for over 30 minutes because a plane was in our gate. The pilot kept saying it will just be 5 minutes or less. However, we sat for over 30 minutes. Experiences like this make customers not trust what the pilot is saying.

6.0 GoodJacqueline, Nov 2026
Read more United Airlines reviews

We sat on the tarmac in Denver for over 30 minutes because a plane was in our gate. The pilot kept saying it will just be 5 minutes or less. However, we sat for over 30 minutes. Experiences like this make customers not trust what the pilot is saying.

Service was slow Flight was very loud at back of plane

I need to note that this flight experience was generally fine but the boarding situation was absolutely a mess and there wasn’t any actual priority boarding. I rated the experience poorly because I’m am genuinely so frustrated with the crew on United taking the baggage space in first class. This flight it didn’t happen, but the last few flights (when I ironically don’t get an opportunity to provide feedback) have been spoiled because upon entering the first class cabin as one of the first few seated passengers, the overhead bins are full and ‘crew’’ tags are on the bags of those taking space. I don’t intend to infer some sort of a class or caste system but it’s absolutely ridiculous that the crew takes the overhead storage above and beyond their most loyal and lucrative customers. They should not even have economy space IMO. And I’ve gotten grief when I’ve noted to the crew the ridiculousness of the notion that the crew (who are the last off the plane) should have priority over flyers who pay. I hope you find a way to convey this message to United because it’s happening with increasing frequency and I intend to find a way to expose the specific crew members who are doing this on a flight by flight basis. (And I have a day job)

Seats needs to be wirer and food is very poor

Pretty much the exact same comments for this flight, there was crazy weather!

I have been flying united for a long time but now I’m done

1) United economy seats barely recline. 2) I have yet to get United WiFi to work, after numerous flights.

Return flight was perfect. All on time and no hiccups. However, going was another story. I don't blame United for the weather, but I am rather disappointed in its response to my getting stranded in my layover city for the night. United gave me a $20 food voucher. That's it. But besides this policy, the employees were incredibly helpful rerouting me to my final destination in Fort Lauderdale, FL. So overall, 8 out of 10. 10 out of 10 for flight comfort, inflight service and before flight service. 5 out of 10 for layover handling.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

My flight was 3 hours late, which caused me to miss my connection in Denver. Further, this connecting flight was then Later canceled. This required me to stay another night an hour and a half away, and rent the rental car for an additional Night. I am still waiting for United Airlines to reimburse me for the inconvenience and Expense of having to extend my rental Car for An additional Day. See attached receipt. https://share.icloud.com/photos/0f5ns2AaeIr7w6t_uH1qfPBUg

On Frontier's website and on the app it clearly states that "Eligible active-duty U.S. military personnel and their accompanying spouse and children, when the service member is present and traveling on the same itinerary, will receive complimentary baggage benefits after successfully verifying their military status through ID.me" however, when checking in at the counter the attendant at the ticketing counter stated that it was only for the active duty service member, when I showed the attendant what it stated on the Frontier website and app she gave me an attitude but did change it eventually.

You have to be super careful when purchasing as *everything*, a carryon or a sip of soda, has a fee. They relentlessly chip away at you with surcharges and extra costs … and it’s not always clear what you are getting when you buy your ticket. Will not fly them again. And … crew were not friendly until off boarding .. like they don’t like working for Frontier.

Air was off while waiting on the runway and the temperatures became very uncomfortably hot. Flight attendants were very loud and rude the entire flight.

I booked tickets from San Diego to Cincinnati months in advance to attend my sister’s wedding, a wedding where I was serving as the officiant. At 10:00 PM the night before my 6:00 AM flight (just 8 hours before departure), I received an alert that my first leg to Denver was delayed, causing me to miss my connecting flight to Cincinnati. When I called Frontier customer service, they informed me that they couldn't get me on any other flight that would get me there in time for the Saturday wedding, let alone the rehearsal dinner. Because I had a critical role in the wedding, I was forced to buy a last-minute ticket on another airline for three times the original price, it costing me well over $1,000 extra. Even with the emergency flight, I still missed the rehearsal dinner entirely. When I spoke with Frontier, they agreed to refund my original ticket, but showed zero care or accountability for the massive financial burden and distress they caused. Their "compensation” for causing me to spend an extra $1,000+ and miss an irreplaceable family event? A $75 Frontier voucher. Frontier completely dropped the ball. Their customer service showed zero empathy letting me know that it was Frontier who was the real victim by refunding my ticket price, and their reliability is non-existent. I will never fly Frontier again, and I strongly advise anyone who actually needs to arrive at their destination on time for an important event to book with literally any other airline.

I know Frontier is a “no-frills” airline. I understand the concept. However, I jumped on some tickets for our family vacation, expecting to play a bit of a game to figure out the family bags and not over spend. In the end, I got the short end of this deal by far. 1. I did not expect them to charge the baggage fee for each direction. It makes the fee look high-ish at a glance, but reasonable. Then when you get to checkout and realize you have to pay it twice to come home with your luggage, it becomes ridiculous. 2. The low checked bag weight limit. I am used to packing a 50lb bag with my preferred airline. Frontier’s artificially low 40lb limit more quickly triggers the extra weight fee, which almost DOUBLES the price of the bag if you go over ($79 for the bag/$75 for the next 10 lbs) 3. The fee for a carry-on bag is the same as a checked bag but with a lower size and weight limit. Make it make sense! 4. The seats are terrible. My 2.5 hour flight almost had me losing my mind. I’m 6’3” and my femurs barely fit in the space provided. My knees had to wiggle just right to jam into the crack next to the armrest of the seat in front of me. The cushioning was thin and inadequate. I am tall but I’m not a freak. These seats are unacceptable. 5. I overheard the woman next to me speaking with the gate agent about being charged a $25 fee for not checking in online - she checked in at the airport counter when she arrived. That’s ridiculous. She was old and in a wheelchair. She had a paper boarding pass, and was obviously not tech savvy. She should not be punished for that. 6. They do not have good placement in the terminals. It was always out on the end or down on a subfloor, and we had to walk out on the tarmac almost every time. In Denver. Their home airport! 7. Every time I loaded a new page on the website while buying my tickets or my bags, it was constantly trying to upsell me on some esoteric bundle. Like, a pop-up every time. Very annoying. 8. No screens in the boarding area (at least where we were) to confirm you’re in the right place. Just static gate number signs. I am sure these are standard practices for Frontier, and I should have read more about them before I purchased tickets, but as a result of this single round trip, I do not plan to ever use this cut-rate airline again. I would rather pay the normal amount for a ticket and be treated like a customer instead of a mark.

Great except upon arrival it took them a long time to open the doors

It was awful ....my first time flying on it and I will NEVER fly it again ....everything about it was terrible .....most especially the flight attendants

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

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.

One gate agent in Sioux Falls ruined it for a few people on the flight. It was the usual, that personal item is too large, you are going to have to pay $100 to get it on the flight. One family with a baby were told that they had to have a passport for the baby to get on the flight. Also a Sheriff's Deputy needed to go on the airplane to return a lost cell phone to a minor on the flight. The gate agent would NOT let him go on without a boarding pass. I don't know who this moron was, but the sooner Frontier moves him where he can't interact with people, the better off they will be. Let's just say the deputy did the job that he needed to do and returned the phone to the minor on the plane, even with argument from a gate agent that thought he had way more power than he actually does. Very IRRITATING individual.

More options for your flight from Sioux Falls to Colorado

Complete your trip to Colorado with a hotel stay or car rental