Find cheap flights from Sioux Falls to Denver

FSD - DEN

Find cheap flights from Sioux Falls to Denver

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Round-trip
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Sioux Falls (FSD)
Denver Intl
Mon 5/17
Mon 5/24
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Good to know

Low season

JanuaryBest time to beat the crowds with an average 21% drop in price.

High season

DecemberMost popular time to fly with an average 19% increase in price.

Average price round-trip

$157(avg. price over the last 2 weeks)

Good deal round-trip

$110or less

Good deal one-way

$61or less

When to book flights from Sioux Falls to Denver

Estimated round-trip price
Average price per month
Flight prices as travel date approaches

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $61 or less one-way and $110 or less round-trip.
  • The cheapest flight from Sioux Falls to Denver was found 57 days before departure, on average.
  • Book at least 5 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is January.
  • Morning departure is around 8% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

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Top 4 airlines serving Sioux Falls Joe Foss Field to Denver Intl

Scores according to KAYAK customer reviews

7.2
American Airlines
Overall score based on 45,529 reviews
7.5
Boarding
7.1
Comfort
7.8
Crew
6.9
Entertainment
6.7
Food
Airline reviews

Pros: "1st class flight attendant sat through the entire flight (except for offering drinks and food early in flight). There were passengers NOT wearing masks through the flight but she wouldn't know that since she never left her seat"
Cons: "just about everyting"

Cons: "IFE was not streaming movies, WiFi on but not loading"

Cons: "Spacing people out until this covid is over"

Pros: "Everything was great"
Cons: "Nothing"

Pros: "Appreciated the pilot keeping us informed re: turbulence and avoiding it"

Pros: "I loved everything! Best flight experience in a long time. Really easy, on time, great window seat, thank you"
Cons: "Me probably. You guys were excellent!"

Pros: "Nothing"
Cons: "Not allowed unleashed dogs to take my seat or be in my flight"

Cons: "Sat waiting for gate for 30 min"

Pros: "Horrible staff at LAX boarding gate. Been treated horribly by incompetent and rude AA staff."
Cons: "Hire only friendly people for this type of job. Hire people knows basic math. Train their well on how to communicate with people."

Cons: "The plane had a mechanical issue that they needed to address (due to the fact that they prior crew did not address it) and we sat in the gate for 2 hours waiting. No worries water was offered by crew and the flight had no food."

Cons: "Flight got delayed. We paid for assigned seating for our almost 85 yo mom. And the change in flight no one asked for to get seated in the front of plane. Instead she was seated all the way in the back. It was physically exhausting for her."

Pros: "The notifications regarding my connection and baggage claim."
Cons: "Nothing."

Pros: "Crew was great"
Cons: "Absolutely no accommodation for seat assignments and the lady at the gate was so rude for even just asking to sit next to my fiancé even though there were tons of single people on the flight."

Pros: "The flight itself was fine."
Cons: "The gate change was not announced on my phone app (changed from E7 to D49). I hate leaving out of Terminal E at MIA. There is no point to having TSA Pre-Check if you have to stand in line with people who don't have it. I have to remove my liquids and laptop. It's such a shabby, run-down terminal."

Pros: "No major screw-ups this time!"
Cons: "It's AA, let's not try too hard here."

Pros: "Crew was nice"
Cons: "Not enough leg room. They did a gate change and I almost missed the flight because nothing was announced and when I looked at my phone app it had the previous gate."

Pros: "Nice staff"

Pros: "Pleasent"

Pros: "Pretty standard flight"
Cons: "Inconvenient timing and overcrowded with obnoxious children sitting on laps. No attempts made to change their behavior by crew or parents."

Pros: "The plane looks like new. Great seats, phone and tablet holders at the seat back, USB outlet and a smooth flight."
Cons: "The WiFi did not work and so no entertainment for a flight of almost 4 hours."

Pros: "Fast quick flight. Bags out quickly."
Cons: "Seats are far too cramped for someone who is 6,2."

Cons: "The sound on the entertainment system in my seat didn't work well. Also, the flight was really late getting in to Denver."

Cons: "3+ hour flight with no TV/ entertainment"

Pros: "Not using kayak."
Cons: "Worst flights in history. It took three days to get from Italy to the US. Do not use kayak!"

Pros: "Our plane was given to another group going to Orlando so we were delayed almost 4 hours. This after a 5 hour layover."
Cons: "Gate lady was funny about being pissed about the delay."

Cons: "Didn't like the two hour delay, especially when I was notified only a half hour before boarding! This seems to be a normal thing for American Airlines."

Pros: "They got us there quickly."

Pros: "Ahead of schedule"

Pros: "Seats were too tight and too close together."

Pros: "Movie and tv selection was good. Boarding was a cinch, we took off exactly on time, seats were comfortable, too."
Cons: "Airline misplaced my boyfriend's checked back with our duty free Portuguese wine in it. It still hasn't been delivered to him the next day. They had three hours to get the bag on the flight."

Pros: "Nothing in particular"
Cons: "Outlet did not work"

Pros: "Friendly Staff"

Pros: "Same"
Cons: "Same"

Cons: "Everything. Had to sleep overnight in airport and was late coming home."

Pros: "Wonderful, again. Will fly American any chance I get!"

Cons: "No tvs!!"

Cons: "the new seats are awful"

Pros: "It’s been a while since I’ve flown American, but the aircraft was updated with a solid multimedia system, great moving map, and a standard power plug and USB port at every seat. That’s more than I expected, and was quite happy. Service was solid—no complaints."
Cons: "Good & bad — flight arrived late, but the honestly, the pilots did their level best to make up the time and managed to arrive w/in 4 minutes of the scheduled arrival. Well done."

Pros: "Tv and power outlets"
Cons: "This one attendant didn't get her name but was very cold to me"

Cons: "Long delay"

Pros: "Crew"
Cons: "Small plane"

Pros: "Good serice,"
Cons: "Good service to switch flight pattern from greenville to new bern but still a delay that cause a 2 flight connection. Lots of on-line issues with check-in, overall a stressful day, hopefully it will all work out!"

Pros: "More improved than the last trip I took with AA to Denver. Efficient boarding."

Pros: "Everything"

Pros: "No excuse on a night flight does the temperature to be 80 plus degrees on the plane."
Cons: "The plastic seats and extreme temperature was brutal. They shut the AC off of down somehow."

Pros: "Entertainment."
Cons: "We sat on the runway for 3.5 hours while the crew cleaned up a fuel spill and we waited for a different co-pilot."

Pros: "Flight not entirely sold out. So they let my 14 month grandson have an empty seat between my daughter and I. That was a great gift since he doesn't sleep and is jumping and crawling all over the place. And I'm sure the other passengers were breathing sighs of relief!! Also super smooth landing and nice flight attendants."
Cons: "Flying with an active 14 month old toddler boy and of his "stuff" is nothing less than anxiety provoking. Not much the airline can do.."

Pros: "Crew"
Cons: "Had to board three times, two different planes. I understand mechanical problems, but 3 hours later, and on another plane, the captain starts making stuff up, saying that the only reason we hadn't moved in the last hour was because people were using the bathroom, then something about having to deplane because the plane couldn't back up with us on it because of some sensor? And then, surprise ! All of the sudden they noticed there was an issue with his and some of the crews' hours and we had to wait till they could locate more crew. But they gave us each a 1/3 glass of water and later a $12 food voucher which didn't even cover a meal and beverage. Whoop-de-do. 7 hours later we finally boarded for the third and last time. The crew on the other hand stayed professional and friendly."

Pros: "American Airlines is my favorite Airlines to fly. There is a little more leg room and the seats are a little wider. The staff is very professional and courteous."

Pros: "No seat not comfortable."
Cons: "No legroom."

Cons: "Seemed understaffed at the airport, never anyone around to answer questions about why our plane wasn't even there until 20 minutes after we were supposed to have boarded. They finally showed up, but didn't mention that we'd be delayed (which I eventually found out thanks to a KAYAK alert). Kept telling us the flight would be 62 minutes, but it ended up taking forever. Probably not Allegiant's fault, but they acted like they wanted to hide the fact, rather than own up to it and apologize for the inconvenience as if they valued all of us as passengers."

Pros: "Crew was very helpful Everything was on time"
Cons: "Very bumpy ride (not anyone's fault) Very uncomfortable seats"

Pros: "direct flight"
Cons: "airport hassles"

Pros: "the crew was very helpful"
Cons: "seats could have been a little wider"

Cons: "I had problems with baggage and Allegiant staff at the airport were very unhelpful."

Pros: "Crew, check in and access"
Cons: "Seats are getting a bit tiny and the trays are small. Comfort and baggage prices are starting to drive the price out of competitiveness."

Pros: "Crew and plane ride."
Cons: "The seats hurt us."

Pros: "Cost"
Cons: "OMG, miffed and aggravated right now!! Currently on Allegiant Flight 1355. PIE to CVG A non-eating flight. These POSs MFers decide to have a friggen pizza party in the middle of the flight"

Cons: "$50 bag fee for small carry on is punative."

Cons: "More space under the seat in front of me for my carryon"

Pros: "The crew was fantastic!"
Cons: "I wish there was at least a free beverage."

Cons: "I see no reason why the airlines cannot provide a beverage and snack - I think they still make plenty of money off our tickets and how much could this really cost them?"

Pros: "Cheap and direct no frills"

Pros: "Late"
Cons: "Be on time"

Pros: "Crew food. Seat small little leg room."
Cons: "Plane on time. More leg room."

Cons: "2 hour weather delay. Flight didnt arrive in Tampa until 1:30am. Hard time finding transportation from airport that late"

Pros: "Quick direct flight that wasn't packed"
Cons: "The woman that checked my bag kept calling me "sir" and after I corrected her a second time she rolled her eyes and said "oh, I don't even look up" I am not a man. For Pete's sake pay attention."

Pros: "Comfort nice cool cabin on boarding"
Cons: "No complaints with airline but flight was a little ruff on approach made me a little nauseous."

Cons: "Very uncomfortable"

Cons: "Good flight."

Pros: "Efficient, direct flight, outstanding price, quick boarding, left late but arrived on time"
Cons: "Nothing. I did not try food or entertainment on this flight."

Cons: "Short flight"

Pros: "The captain was very good, and we arrived early to our destination. We had to hold back before landing, due to smaller planes landing, so the captain pointed out some areas along our path! Loved it! The flight was smooth."
Cons: "We had to be in the boarding area an hour before the flight was scheduled to leave. However, because of the way that the flights are scheduled, people were still deplaning from the previous flight for 25 minutes after our gate arrival time."

Pros: "Quick"

Pros: "Cost of flight"
Cons: "Extra charges for everything! Couldn’t even get a cup of water."

Pros: "Crew friendly and professional"
Cons: "Everything is extra, even water or soda. Seats are narrow so glad im not a heavier person"

Pros: "timeliness of the flight professionalism of the crew immediate attention to a passenger who fainted"
Cons: "passengers were cold and there were no blankets to be offered there were no hot beverages and it was very cold. all beverages were for purchase and yet no complimentary hot coffee nor tea, even if you wanted to pay"

Pros: "It was great"

Pros: "Nothing"
Cons: "The $17.00 i paid to insure the flight was not honored. I had some health issues and needed to cancel. I was then told that the airline I chose through your site, won’t honor it. I am furious and am owed my refund."

Pros: "Price"

Cons: "Allegiant Crew were very snotty and sassy... bossy even, like they were all having a bad day. The flight itself felt like we were falling out of the sky the entire time. Up and down up and down. Seat back tray tables were extremely small."

Cons: "Our Kayak reservation did not state that we would be a boarding level that did not allow for a carry-on item. This needs to be more clearly identified."

Pros: "Airport and onboard crew were nice."
Cons: "It was myself, my wife, and our 18 month old son. The trip was a complete disaster. The first delay was from 12 noon to 7:30 pm because the plane was unavailable. We left the airport and returned at 6 pm for the 7:30 pm departure. The plane was "available." We checked our bags, found our way to the gate, and eventually boarded "ontime." Instead of taking off, however, we sat on board the plane at the gate for 2 hours as work was being done. The work was first called "maintenance," then "a small error code." The captain teased us by saying "folks, just a few more minutes and we should be departing." The crew nourished us with a dixie sized cups of water and Chex mix. Then finally the airline gave up and deplaned everyone. Once deplaned, it was explained to us that they couldn't clear the error code, so they couldn't use that plane. But there was another plane coming from Las Vegas to use so that we could expect a departure around 12 midnight. 12 midnight rolls around. Nothing. 12:30 am. 1 am. Finally, a plane arrives. But then the airline holds us up yet again - turns out we can't depart after all because the arriving airport shuts down at 2 am. Gee, they didn't know that before making us wait another 3 hours??? Now they're offering a refund to anybody who wants one, as well as a hotel for the night and the promise of a flight at 2:30 pm the following day. At this point, many of us are looking up alternative flights to Eugene and even Portland. A $1,000 extra for us. We're not sure whether we can trust Allegiant to have an actual plane ready to go the next day. And we're too tired at that point to even ask why the next flight would be at 2:30 pm rather than first thing in the morning. So finally we line up to get a hotel voucher and find our way to the hotel. It takes over an hour to checkin at the hotel because it's the middle of the night and 150 people just showed up to checkin. We finally get to our room at about 3:30 am. I'm amazed at how well our toddler held up sitting on an airplane for 2 hours, sitting at the airport for about 6 hours, and waiting to fall asleep all night. We eventually made it back to the airport the following afternoon and, praise the lord, made it to our destination. Allegiant - NEVER AGAIN!"

Pros: "Great airfare, great staff, etc. Cant help that the passengers are idiots ! Love this place."

Pros: "Actual flight good and crew very accommodating"
Cons: "Seats poor. Waited 40 mins before the luggage entered the belt for pickup. Held us up for transportation to rent lot."

Pros: "It was easy to book. And they helped me make changes to my flight schedule without charging me"
Cons: "Everything else is charged... from the in service beverage cart, to your boarding pass. Your baggage. Everything you have to pay for. So just be prepared for that."

Cons: "I attempted to check in online and was unable to do so. Bad app."

Pros: "New plane!"
Cons: "Boarded too early!"

Pros: "I chose this flight knowing it was gonna be a little cramped and no snacks. But I loved the price, so I booked it. The unexpected bonus was the crew. They were down to earth and funny."

Pros: "The service is not extravagant but completely adequate. Also, it is very consistent every time I fly them."
Cons: "Nothing at all."

Cons: "First flight being cancelled"

Cons: "Allegiant needs to put more than just school bus seats in their aircraft."

Pros: "I did not like anything about it. The Departure flight was two hours late. They made us board then unboard the plane, change gates. Then the return flight was posponed from 9pm to 3am departure. They didn't have any refreshments in the gare area other than stale unhealthy pizza, no water. The seats on the plane were the most uncomfortable. I even purchased the extI did not like anything about it. The Departure flight was two hours late. They made us board then unboard the plane, change gates. Then the return flight was posponed from 9pm to 3am departure. They didn't have any refreshments in the gare area other than stale unhealthy pizza, no water. The seats on the plane were the most uncomfortable. I even purchased the extra legroom. No recline, no room. Horrible flight"
Cons: "I did not like anything about it. The Departure flight was two hours late. They made us board then unboard the plane, change gates. Then the return flight was posponed from 9pm to 3am departure. They didn't have any refreshments in the gare area other than stale unhealthy pizza, no water. The seats on the plane were the most uncomfortable. I even purchased the extI did not like anything about it. The Departure flight was two hours late. They made us board then unboard the plane, change gates. Then the return flight was posponed from 9pm to 3am departure. They didn't have any refreshments in the gare area other than stale unhealthy pizza, no water. The seats on the plane were the most uncomfortable. I even purchased the extra legroom. No recline, no room. Horrible flight"

Pros: "Cheap fare"
Cons: "High baggage fees. Airplane sat for 30 min after boarding for fueling and some type of technical specifications. Seats don't recline."

Pros: "Great service and very clean plane. Staff did everything to accommodate everyone's needs."
Cons: "There was a lot more turnulance than expected which could have made for our shaky landing but the pilot did a great job regardless."

Pros: "Everything was good"
Cons: "Could of had more selections on the flight for snacks"

Pros: "On time"
Cons: "Boarding outside in the pouring rain!!!"

Pros: "That fact that they did not suply even one free bottle or cup of water is awful. I was very thirsty but did not get a drink because they chaged $2.00 for one bottle of water, and the is just plain wrong."

Pros: "The fight"
Cons: "Security"

Pros: "Yes"

Pros: "Fast and friendly"

Pros: "Good job"

Pros: "How easy everything was"
Cons: "The delay"

Pros: "Nothing"
Cons: "Arriving on time to make my connection!!!!!!"

Pros: "Very helpful assistance staff, food and drinks delicious, excellent service onboard"
Cons: "At Denver assistance hadn’t been arranged"

Cons: "Only bathroom on the plane was closed due to issues. Plane was cold and cramped."

Pros: "Love United’s service. Nothing to complain about."

Cons: "Delayed boarding, no room in overhead bins even after being charged extra for carryon and had to stuff it at my feet, even at row 15, after being charged more for that too."

Cons: "It sucked in many ways. But that wasn't united's fault. The weather was threatening lightning in Denver and of course because of that the world stops turning."

Cons: "There are hard to reach outlets and no ports to charge a device without a box. Also, no monitors."

Pros: "Nothing"
Cons: "When I spoke to the United person last week to confirm baggage and carry on requirements. He said I could take a carry on when I turned up to the gates I was charged another fee for my carry on bag. What is baffling is that when I arrived at Denver people were getting complementary check in baggage. I’m so dissatisfied with the booking and the amount it has now cost me ruining any savings I’d had for sanfrancisco"

Pros: "Nothing"
Cons: "The boarding process was chaotic and the plane attempted to land once, got about 100 feet from the ground and had to pull up. So we basically landed twice."

Pros: "I liked the ticket price."
Cons: "The seat was very narrow with absolutely minimal leg space, and a carry-on bag was not included in the fare."

Cons: "Delays in flights were a disappointment"

Cons: "They made me put my carry on under the plane."

Cons: "Missed connection due to mechanical"

Cons: "Crowded planes."

Pros: "Everything was very nice."

Pros: "Everything was on time and all the staff were professional and friendly"

Pros: "The variety of movies"
Cons: "No daily wifi"

Pros: "One if the bathrooms was closed and a second one had no running water."

Cons: "Maintnece delayed our flight for nearly 3 hours. We remained aboard the parked plan for this time span and not allowed to get off of plan."

Pros: "Friendly crew."
Cons: "Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none)."

Pros: "Repairs caused a long delay, they kept us informed but it was a hurry up and wait forever"

Pros: "Nothing unusual every was smooth"
Cons: "Not applicable"

Pros: "Nothing"
Cons: "Everything"

Pros: "Staff was nice!"
Cons: "I didn't like the luggage restrictions associated with our tickets."

Pros: "Curtial personnel"
Cons: "Late departures both ways."

Pros: "The flight was fine. Crew was polite. No problems with that part."
Cons: "Tell me why it costs $470 to fly 1.5 hours from S.F. To Denver. Absurd! I flew from Denver to San Fran for $90, the same week. Never again!"

Pros: "Suitcase arrived at the carrousel on time , much better than Houston."

Pros: "United payed for the room and 20 bucks for food."
Cons: "Late. Missed the connection to Gillette and had to stay overnight."

Pros: "Well, my original flight was cancelled due to bad weather, got to spend 2 extra days with my family! Gave up my seat on the last leg of my flight, got a 500$ voucher, put up in a beautiful hotel, w/ a nice meal and transportation. Like winning a sweepstake. Always love United, great airline, great staff."
Cons: "There was nothing i didn't like. Airline of choice, for always!"

Pros: "Had a stroller, two bags, and a car seat and the check in staff helped us tag everything and loaded it for us. It was nice to see the Billings staff go above and beyond in my families time of need."

Cons: "Unreliable wifi."

Cons: "Almost missed our flight because they wanted to close the gate early..other than that a good flight."

Pros: "Service was good. Flight was on time. Comfort was fair. Bathroom on board plane was so small my knees would hit door."

Pros: "Quick boarding"

Pros: "It was fine!!"

Pros: "New plane, wifi, arrived 27 mins early"

Pros: "Cancelled."

Pros: "Perfect, but I did upgrade to United's business plus."

Pros: "I recoment it..."
Cons: "No complementary food!!!"

Pros: "We had a good trip. Thank You All"

Cons: "Lost all my luggage"

Cons: "Alcohol was to expensive"

Pros: "Although it was a new airliner to United, it had noticeable more legroom than the Airbus aircraft that other airlines use. Luggage room for your carryon was ok, though not near as convenient as the Boeing's."

Pros: "Relatively easy to change flights due to weather delays"
Cons: "United personnel did not seem too chipper."

Cons: "Delays in take off"

Pros: "I arrived alive."
Cons: "United Airlines has one job, to move people from one location to the next. I'm concerned that United thinks it's in the data transfer business or the package hauling business or some kind of "gotcha' Internet business. There were never enough people at United to help me with my problem. Those real human employees that I found were mostly overworked, over regimented and procedure focused."

Pros: "I made it to my destination"
Cons: "It’s Frontier so it’s not supposed to be amazing. Not having to pay for a drink of water would have been nice though.."

Pros: "the plane, finally, got me where i needed to go"
Cons: "the ticket was only $47 but then i had to pay $39 for a carry on the only complimentary item given on the plane is water - they charge you for coffee the flight attendant was obnoxious, she kept making comments about how she couldnt give us anything for free the seats do not recline the air conditioning wasnt working but they loaded the plane up regardless and then after 30 minutes told us we could get off the plane while they look for the missing part that is 'somewhere' in the airport and they didnt know how long it would take for the part to be found and installed -- i dont understand why they would load people onto the plane if the plane was not working properly and they knew they needed to stall it was a very bad experience all in all"

Pros: "The cheaper fares"
Cons: "Not even water and coffee were free."

Pros: "Efficient"
Cons: "Plane was very late"

Pros: "The crew tried to make the delays suck less."
Cons: "Delays. Delays. Delays. And no communication with passengers. Flight boards were incorrect and the only information I could get was from the desk."

Pros: "Our flight was delayed and the crew was very nice and took great care of us"

Cons: "The scheduled plane had a mechanical problem so we deplaned for alternative plan. It took six long hours to get another plane in. Meantime passengers stood in line for hours to make other arrangements. It would have been appropriate for the airline to call in extra staff to help stranded passengers. We missed the scheduled connecting flight and a tour. We got in at 1:00 am, 12 hours later than planned. We had meetings next day and were very tired because we got in so late"

Pros: "Got me to my destination. Made my connection. What was the entertainment?"
Cons: "Lack of complimentary beverages. High charge for checked luggage & carry on luggage. Too many additional charges. Enjoyed flying with other carriers better with amenities with cost equal to or less than cost to fly Frontier. Late departure."

Pros: "Flight attendants were great and can't beat the price!"
Cons: "Flight was delayed for over 2 hours and did not once get an update from frontier staff on what was going on...nor did they apologize for the delay when we finally boarded."

Pros: "The counter person was nice & did a good job of giving us our options DUE TO FRONTIER CANCELING THE FLIGHT."
Cons: "I was told that Frontier could not help us find another airline and that the soonest they could get me on another flight was 5 DAYS. I was told if I could find another airline on my own that FRONTIER WOULD REFUND THE TICKET PRICE SINCE I DID NOTHING WRONG. I submitted for a refund and was denied the refund. WTF frontier whats going on??"

Pros: "Atleast they fly to Souix Falls"
Cons: "They closed the check in area 45 min. Before flight, thankfully everything was on our phones and it's a small airport so the TSA got us through so we could Chek in at the gate. 3+ hour delay for "maintenance issues" (found out it was a paperwork issue the plain was fine the whole time). We boarded, then after an hour we were let off the plain to go to the bar, which was closed but they reopened for us, but no food. We were starting to figure out if we needed to rent a car before the rental places closed. Finally got back on the plain, and got to Denver. Frontier send an apology letter with a 50 dollar credit, we spent more at the bar while we were waiting. Frontier is only good for last minute cheap flights then they nickel and dime you to death. Their customer service sucks, the last time I was on Southwest with a delayed flight, (only about an hour late and the plain was late coming into Denver) they gave us a 200 dollar voucher right then and there, apologized a ton, and gave anyone over 21 a free drink. I'll be sticking with southwest even if it cost a little more!"

Cons: "When we checked in at the counter they did not inform us about carry-on charges. Most airlines don't charge fees for carry-ons, but frontier does. We had to pay $60 each for small carry-on at the gate. This practice is unfair to people who are not familiar with cheap airline business models. They should be more transparent about their fees on the ticket and at the counter. This cheap airline is so cheap that they couldn't hire enough staffs at the DCA gate. There's only one staff checking in the tickets at the gate and we had to wait until everyone went into the plane to pay for our $60 check in fees."

Cons: "Never again. Dried vomit on seat in front of me."

Pros: "Boarding was quick and smooth"
Cons: "Entertainment: there was none."

Cons: "You have to pay for every single thing-not a cost savings"

Pros: "Friendly and couteous"
Cons: "How the seat selection goes, having to pay more to have a different selection"

Cons: "Well first our flight got delayed an hour and a half and then delayed another couple hours and then finally the flight was flat out cancelled till the next day which made us obviously miss our flight to portland that night and we had emergency prior engagements that we missed and a whole weekend we paid for that is now missed because we won't be getting to Portland until practically two days later assuming everything goes perfectly today. ( currently sitting in Sioux Falls airport)"

Pros: "Pretty much nothing."

Pros: "stewardess was excellent/funny"
Cons: "too cramped. to get additional legroom it is more money."

Pros: "I had a problem when I was printing my ticket. I called Frontier about the problem. They fixed the error, waived the extra fee and as long as she had me on the phone she walked me through the rest of my check in. When I got to the airport the staff at the Frontier counters were very friendly and courteous. The flight attendants were also upbeat and good with the passengers."

Pros: "everyone was friendly"
Cons: "it was cramped."

Pros: "About the only good thing I have to say about this flight was that the pilot was good about communicating what was going on as a result of bad weather in the area of our destination."
Cons: "Overall the Frontier staff was not helpful. They had no information and didn't really seem to care. The flight attendants were doing the bare minimum. And when asked a question they were not helpful and also didn't seem to care about the comfort of the passengers. Several of the overhead lamps on this plane were out. Even though we had to wait on the plane for over an hour before departing, no drinks were offered (unless you wanted to pay for them). I think there are things that can be done to make an experience more enjoyable even when things are not great. Like offering a free soft drink to passengers as they wait etc. Being cheerful can go a long way, and we weren't getting that from this Frontier crew."

Cons: "no ability to get the seat to recline, even a bit."

Pros: "Nothing"
Cons: "Delays, late bags, poor service"

Cons: "They dont even serve free drinks, took about 35 minutes to bring me water, and were rude."

Cons: "Everything!!! Never using Frontier again!!"

Cons: "I didn't enjoy how the ticket is cheap online but they get you in the end by charge for your seat and luggage ( even carry-on)."

Pros: "staff was good."
Cons: "all the extra expenses. ends up being as $ as delta"

Pros: "Friendly staff"
Cons: "Hope to not fly frontier again. Many people were complaining to the agents about the luggage policy. I felt sorry for them."

Pros: "stewardess was nice"
Cons: "late arrival in Denver, then, "not enough staff "to unload us and get us into the terminal-waited in plan almost an hour . 1 hour Late takeoff from Denver. plane seat does not recline, tight I wont take frontier again"

Cons: "Frontier charges for the most basic amenities that other airlines provide (non alcoholic beverages and carry-on luggage space)."

Pros: "Was a good trip. Things went smoothly as you could expect with 250 passengers."
Cons: "Can't really think of anything negative"

Pros: "I'd rather take a shower at auschwitz than fly frontier again"
Cons: "Everything. Literally everything"

Pros: "The competence of the on board personnel."
Cons: "The lack of communication with passengers at the gate."

Pros: "Very little"
Cons: "Poor arrival jetway control. Terrible luggage work."

Cons: "Delayed both in Mpls and Denver!"

Cons: "All good!"

Pros: "I like a free water or a small snack"
Cons: "I like to have a Free water and 1 little snack"

Cons: "Seating too cramped"

Pros: "Nothing"
Cons: "Terrible delay with no clear announcements and clarity"

Cons: "Delayed"

Cons: "My name was spelled wrong, was busy 30 minutes on Denver airport to sort that our. Never received a artillery"

Pros: "Terrible Service, charching For every single bag, i Will never use them not even For free"

Pros: "I was pleasantly surprised. They loaded back to front and folks were not carrying on much. You might give us a free soda. Overall excellent."

Cons: "There was no food or entertainment so I could not make a judgement on these. With a short flight it is not needed."

Pros: "Getting off"
Cons: "It sucked the bologna from peehole"

Pros: "The crew was friendly, and conscientious. They had an excellent attitude."
Cons: "I'm 6'1", do you really need that 4" of knee room?"

Cons: "Uncomfortable seating and quarters"

Pros: "Early arrival into destination"
Cons: "Having to pay for every service"

Cons: "Delayed forced me to rebook with different carrier last minute"

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COVID-19 information

Safety measures for airlines flying from Sioux Falls to Denver

Airlines flying from Sioux Falls to Denver have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Sioux Falls to Denver

Mandatory masks

Masks required on board, masks provided on flights from Sioux Falls to Denver

Social distancing seating

Middle seats unavailable to book on flights from Sioux Falls to Denver

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Sioux Falls to Denver

Book cheap flights from Sioux Falls to Denver

Recent round-trip flight & bus deals

5/22
Sat
nonstop
Frontier
1h 40m
FSD - DEN
5/29
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nonstop
Frontier
1h 34m
DEN - FSD
5/29
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Frontier
1h 40m
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1h 36m
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1h 40m
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6/9
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1h 36m
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1h 40m
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6/7
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1h 33m
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1h 40m
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1h 36m
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5/28
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1h 40m
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1h 36m
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Multiple Airlines
1h 44m
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12h 46m
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22h 51m
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1h 44m
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United Airlines
17h 48m
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21h 30m
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6/14
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13h 45m
EN8 - 1BG
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Recent one-way flight & bus deals

5/22
Sat
nonstop
Frontier
1h 40m
FSD - DEN
6/2
Wed
nonstop
Frontier
1h 39m
FSD - DEN
5/29
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nonstop
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1h 40m
FSD - DEN
5/31
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1h 44m
FSD - DEN
6/4
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nonstop
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1h 40m
FSD - DEN
6/2
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Multiple Airlines
22h 26m
FSD - DEN
5/28
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nonstop
Frontier
1h 40m
FSD - DEN
5/24
Mon
1 stop
Multiple Airlines
17h 19m
FSD - DEN
7/21
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Multiple Airlines
20h 18m
FSD - DEN
5/26
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Multiple Airlines
22h 24m
FSD - DEN
5/25
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Bus
34h 55m
1BG - EN8
5/21
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2 stops
American Airlines
28h 29m
FSD - DEN
5/23
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1 stop
Bus
21h 30m
1BG - EN8
5/23
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21h 30m
1BG - EN8
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21h 30m
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21h 30m
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Allegiant Air
14h 28m
FSD - DEN
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1 stop
Bus
21h 30m
1BG - EN8
5/30
Sun
nonstop
United Airlines
1h 47m
FSD - DEN
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Compare transportation modes for Sioux Falls to Denver

Average price Average duration
Flights $299 1h 40m
Buses $329 24h 51m
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