Find cheap flights from Wisconsin to Colorado

Find cheap flights from Wisconsin to Colorado

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Round-trip
Economy
Boston (BOS)
Colorado
Thu 8/5
Thu 8/12
Any month
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Good to know

Low season

AugustBest time to beat the crowds with an average 6% drop in price.

High season

DecemberMost popular time to fly with an average 18% increase in price.

Average price round-trip

$480(avg. price over the last 2 weeks)

Good deal round-trip

$77or less

Good deal one-way

$45or less

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Top 5 airlines serving from Wisconsin to Colorado

Scores according to KAYAK customer reviews

7.9
Delta
Overall score based on 29,611 reviews
8.1
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews

Pros: "The accommodation to the military service members!"
Cons: "Air fresheners should be used on the airplane."

Pros: "Delta is doing a great job keeping everything calm and clean during this pandemic!"

Cons: "Nothing all excellent"

Cons: "It was great! Nice job Delta !"

Cons: "Wouldn’t change a thing! I don’t always fly! But when I do!! I fly delta!!"

Pros: "Boarding was a fast and smooth process. Flight attendants were there to help with carry on luggage if needed. Always nice and do their best."

Pros: "Christina brown was amazing at gate"

Cons: "The main economy seats were far too narrow."

Cons: "It was a Great flight. I always enjoy flying Delta"

Pros: "The crew was great and the free entertainment was great"
Cons: "Bring back pillows and blankets especially on red eyes out of Anchorage"

Cons: "No meal option and my video screen volume did not work"

Pros: "Not comfortable a little but scary on the flight to Detroit. Way better coming back to Denver"

Pros: "great crew!"
Cons: "luggage. what a nightmare. I waited 30min for my luggage (after a delayed flight) only to be told by a fellow PASSENGER that some of our luggage was directed to a FRONTIER CAROUSEL. I then had to wait by that carousel till I found it. so much for "bags in 20min guaranteed""

Pros: "Entertainment"
Cons: "Boarding at JFK.Always messy"

Pros: "Inflight experience was fine. TVs didn’t work but Flight attendants are friendly on Delta, cramped seating - but not unlike other airlines."
Cons: "Regular fare seat assignment not available prior to gate . Airport concourse F - poor - limited services. Customer Service seemed uninterested and unable to provide service both on phone and at gate. I’m a frequent United flyer & today’s Delta service experience made me more loyal to UA."

Pros: "Early and middle seat was open!"
Cons: "Coffee tasted like fish. :("

Pros: "We boarded close to on time, no hassles. Allowed my husband and me (retired military) to board early, thank you."
Cons: "LAX security is awful. We never left the airport (arrived LAX from Sydney AU) yet were forced thru security again. Had to remove shoes, was scanned and "frisked" by TSA to get to Denver. To go to Australia, Denver TSA waived the removal of shoes, skipped the scan for the metal detector and no one touched me, ditto for LAX on the trip to Sydney. Where's the uniformity or standards for TSA?? Why did I have to be subjected to this garbage on the way home?? This is why I despise flying. It makes no sense to me. This ruined what was a great vacation."

Pros: "Not much. Boarding by "zone" works ok, but is no quicker than most other boarding methods."
Cons: "Boeing 767-400ER seats had no leg room for 6'+ traveller like me. The entertainment system was so old that there were no 115v outlets or USB ports. On a 7-hour flight, that is a significant problem for travellers today with multiple electronic devices. Finally, we were not told in advance that we had to go through security twice and through US Customs BEFORE leaving Dublin. So, the 6-hour layover at JFK was a complete waste of our time as we did not have to go through Customs there."

Pros: "Free drinks and snacks - great entertainment system (please read this Frontier)!"
Cons: "Boarding process was agonizingly slow and ineffective"

Pros: "The flight itself was fine, boarded on time and arrived on time."
Cons: "A pet peeve of mine is having to check my carry on. They said the overhead bins were all completely full, so I checked my bag at the gate. Come to find out, there were a few spaces left and it wasn't necessary. Really annoying."

Pros: "Everything went as planned!"

Pros: "Everyone who has a kid knows how challenging certain things can be in a flight and for me the combination of a night flight interrupting my baby’sschedule + a full flight it equalized disaster. My daughter could not get comfortable for the love of life and I just felt horrible and frustrated and what sucked most was the 9 year old and her obese father siting in our row that kept giving us weird looks."
Cons: "There’s NO room in planes between seats. It’s 2018 and new planes must be done ASAP to accommodate people better. I’m 5’1” and 110 lbs but adding my 25lb daughter siting in my lap before she turns 2 is absurd to expect that it will be comfortable whatsoever for us or the people breathing next to us. Please DELTA, lead by example and make sure your planes are designed with more room in between and around the seats. In my opinion, every seat should be first class."

Pros: "In a pinch they were able t"

Pros: "Everything was perfect !! Staff friendly"

Pros: "Great in every way"

Pros: "It got me home, eventually."
Cons: "Poor communication, a 6 hour delay followed by a 7 hour layover (during which we had to sleep on an airport floor because Delta couldn't offer us any hotel vouchers). Gate agents disappeared after 7pm becuase they were due to be done with their shifts when our flight was originally supposed to leave at 6 pm. It felt like we were trapped in the movie The Terminal. Oh! And our bag was misrouted, because that was just how things went those 2 days. All in all a 6 hour trip turned into 18 hours. I could have driven home in that amount of time!"

Cons: "Check in lines were crazy long"

Pros: "First leg from San Diego was excellent."
Cons: "Arriving in SLC discovered out flight to Denver was CANCELLED! Had to reschedule to the next day. Not fun!"

Pros: "The entertainment unit allowed me to watch the Denver Broncos game live which helped lessen the delayed departure and uncomfortable seating."
Cons: "Uncomfortable seating....too crowded!! We had a delayed departure by 30-40 minutes because of a computer download issue. Too many folks carrying carry-ons delayed boarding. I wish folks were not encouraged to go that route but to check baggage. This time of year gets even tougher with folks carrying Christmas presents and over sized personal items. Ugh. Not fun to travel this time of year."

Pros: "App is good and convenient to use."
Cons: "The app went down just as we were getting ready to board and luckily i had a printed pass and it took some extra time to check in."

Cons: "3.5 hours late."

Pros: "really helpful and friendly service and nice seats."

Pros: "Got me where I needed to go at the price I wanted to pay. - The gals at the ticketing desk were extremely helpful and cheerful."
Cons: "Not my typical Delta experience: -Boarding for special needs was a joke. A literal ‘run-on-sentence’. No more did I get up and they went to the next group. I was almost knocked over in the rush. -The onboard staff was nice enough. However, between the two of them, one of them had a thick accent. Maybe that one shouldn’t be the one making all on board announcements… and please fix the horrendous crackles too!!! -It seemed our pilot was in training… during our short flight a series of right and left turns were made, no effort to avoid turbulence, and the landing was surprisingly hard. It felt as if my spine took a quick jab to my brain as a result! What’s up?"

Pros: "Got me where I needed to go at the price I wanted to pay. - The gals at the ticketing desk were extremely helpful and cheerful."
Cons: "Not my typical Delta experience: -Boarding for special needs was a joke. A literal ‘run-on-sentence’. No more did I get up and they went to the next group. I was almost knocked over in the rush. -The onboard staff was nice enough. However, between the two of them, one of them had a thick accent. Maybe that one shouldn’t be the one making all on board announcements… and please fix the horrendous crackles too!!! -It seemed our pilot was in training… during our short flight a series of right and left turns were made, no effort to avoid turbulence, and the landing was surprisingly hard. It felt as if my spine took a quick jab to my brain as a result! What’s up?"

Cons: "We left late, it was delayed then maintenance issues. Twice. Seating was very tight and uncomfortable, no movies or entertainment at all. U.S. flights are the worst. Even on short flights with aeromexico outside the U.S. you get movies and food. Zero stars for comfort, food and entertainment."

Cons: "I don't like that I already completed this survey several days ago and have been receiving reminders to do so. I guess you don't have a good system in place for knowing who has and has not completed your surveys. That's too bad."

Pros: "The plane, crew was clean, newer and had TV's in the backrests. Remember to bring headphones! Seats are tight, but the crew was friendly and may the flight experience positive."

Pros: "Friendliness of staff. Second flight was a newer plane - sweet!"
Cons: "For a long flight perhaps a little more in the snack department."

Pros: "Crew was all very nice"
Cons: "Flying is always uncomfortable"

Cons: "Wifi didn't work (network wouldn't show up)."

Pros: "Not much to like here. The new crew was pleasant"
Cons: "Old crew was surly. Plane had much problems and finally replaced. Left 5 hrs late. Delta claims it doesn't have to compensate for a late flight - just a cancelled one so guess which this was The baggage fees are obscene and the gouging of the customer is immoral. No wonder people hate the airlines."

Cons: "Excellent service excellent pilot"

Pros: "Overall, the flight was very smooth and I thought the crew did a great job."
Cons: "I know this is a federal regulation, but I have to mention it as it is part of the boarding process. For the life of me, I can't understand why it is necessary to go through security again after re-entering the country. Understandable that I have to go through customs, but going through security again is ridiculous."

Pros: "Flights were both on time and boarded quickly. Crew was wonderful!"

Pros: "Free in flight entertainment"
Cons: "One of my bags went to Santa Fe"

Pros: "Early arrival. And service"
Cons: "I was assigned very last seat and there is no reclining option."

Cons: "long wait and delayed flight"

Pros: "WiFi, good flight attendants"
Cons: "Would like to see Direct TV along with Delta Suite so can watch live TV"

Pros: "Very professional and caring."

Pros: "Crew was great."
Cons: "turbulence"

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: "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: "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."

Cons: "Seats are small but I understand why just dont like it."

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: "Overhead bins were newly done with plenty of space since carryon can be placed vertical on side. Decide holder built into the seat was very nice."

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: "Spacious"
Cons: "Ran out of food that I like"

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."

Cons: "I hate Americans boarding process"

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: "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"

Cons: "Flight crew was late and didn’t try and make things move faster to make up time. Kept saying they wanted to go Puerto Rico and that’s where they should have been going."

Pros: "Same"
Cons: "Same"

Cons: "Food"

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: "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: "The plane was sleek and clean. I had a good amount of room even in coach!"

Cons: "The flight was 3 hrs late, of which 1.5 before boarding, and almost 1.5 stuck in the plane."

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."

Cons: "Seats too small and the gentleman next to me was a big guy so crowded over into my seat some."

Pros: "Very friendly staff"

Pros: "The plane was new on the interior and comfortable."

Cons: "The customer service from AA representitives in the airport was completely unnacceptable and the absolute worst service I have recieved in an airport to date! One incident during this trip was as follows: When arriving in Charlotte and running to catch my connecting flight, I arrived as the lady at the desk was closing the door, she looked at me and rolled her eyes. When I went up to the desk along with the other passengers arriving from the same flight as me the AA representative said "Hurry up , I want to go home!! At a point I'm just going to cut you off and that will be it!" She was of no help to me in anyway amd was forced tonstay the night in charlotte ; Normally this would not have been such a big deal, However I am on emergency leave from the Navy rushing home because I have a very serious family emergency, that representitive was very lucky I held my temper! From now on thanks to the poor unproffessional customer service I received I will no longer be flying American Airlines!"

Pros: "I liked sitting next to my friends."
Cons: "Lack of leg room"

Pros: "Layover was short"
Cons: "I was charged for my carry on that they then forced me to check. Then one of the stewards on the second leg was an outright nasty woman regarding masks. I had my mask over nose and mouth. But apparently not enough and then she was loudly talking to the other flight attendants about it. One told me “I was perfectly fine.”"

Pros: "Yes"

Pros: "Fast and friendly"

Pros: "Good job"

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: "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"

Cons: "Delays in flights were a disappointment"

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"

Cons: "The temperature on the plane was cool."

Pros: "Fast easy."
Cons: "Pricey."

Pros: "good planes, smooth ride"

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

Pros: "Flight attendants were very nice."
Cons: "Every time I paused my movie, it was difficult to resume it. I couldn't watch the last half at all."

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: "It was fine."

Pros: "Everything was fine."
Cons: "Everything was fine."

Pros: "Nothing"
Cons: "Nothing"

Pros: "Boarding was uneventful, but I wish I could have gotten a gate check....I;m 76 and getting my bag above the seat is difficult. But the gate attendant said there was no gate check on that flight."
Cons: "I had a center seat and that is very uncomfortable for me."

Pros: "Got there on time."
Cons: "Private screening does not work well. Very little kneeroom. No room in seat back pockets to put anything."

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

Cons: "Delayed and got downgraded without refund of difference"

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

Pros: "Sucks"

Pros: "On time..nice staff"

Pros: "Tsa stopped all in my party for private screening to run us very late.."
Cons: "Everything"

Cons: "Unreliable wifi."

Pros: "Getting off the plane"
Cons: "Bathrooms weren't working, huge lines in aisle, lackluster service. Overhead bins were full by Group 3. late takeoff."

Cons: "The fact that the tv is on constantly without the option to turn it off is annoying. The viewing length to passenger is too short to really enjoy (Probably not your fault). PLEASE permit us to turn it off."

Pros: "United seems to be recycling which is a good thing."
Cons: "The obnoxious child sitting behind me. He kicked the seat and pulled on the tray."

Pros: "Got to check 2 carry on pieces for free because too many people had carry on bags. We had paid to check one bag and would have to pick it up anyway, so checking extra pieces was not a problem and actually was very much appreciated."
Cons: "15 minutes late in taking off because an airline associate failed to close out a screen on the computer. It took too long to figure out the problem."

Pros: "Boarding went quickly. We were ahead of schedule. The crew was very nice."
Cons: "At 5 ft tall I still felt like a sardine smushed in a tin can."

Cons: "Didn't receive my carry-on when arrived in ELP. Finally got it the next day."

Pros: "Everything went smoothly"

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

Pros: "Crew kept us updated on everything."
Cons: "No complimentary food or drink. Seat was small and tight."

Pros: "The flight attendants were nice"
Cons: "The fact that we landed and had to wait 30 mins I almost missed my connection flight to la"

Pros: "On time, friendly"
Cons: "Seats a little hard"

Cons: "I had to pay $50 for my bag"

Pros: "Nice snack packs."
Cons: "Wow, chairs are packed really tightly front to back."

Pros: "How can you pay for a flight and then have to pay extra to have a seat on that flight?"

Pros: "Smooth and early flight"

Pros: "Basically on time and no issues. Just a way to get from point A to point B"
Cons: "Seats not reclining. Not even a freakin free soda?"

Pros: "The crew, and boarding was easy. Nice big tray table."
Cons: "My seat didn't recline. No free snacks/drinks. Very small seatback pockets."

Pros: "Crew was hilarious"

Cons: "We were supposed to depart in the early morning. One and one-half hours before departure (so at the time one should already be at the airport), we received a text and an email indicating the flight was delayed. The delay was 12 hours. The flight was delayed one more time, and we finally departed 14 hours later. I asked the customer service rep about the reason for the delay, and he replied "that's a funny story." The reason was because the airline was understaffed and the crew needed to rest for 10 hours. That is not a funny story. We lost an entire day of vacation. Frontier sent by email a voucher for a small amount to be applied towards a future flight. After this terrible experience, I am very very hesitant to fly this airline again. The crew on the plane was nice. There was no flight to Denver, by the time we finally departed, we were put on a direct flight to our destination. The direct flight was nice, but we still lost an entire day of vacation. We had to rearrange all reservations and add an extra night in a hotel. The voucher in no way makes up for the loss of vacation and the extra expense in changing reservations."

Pros: "Non stop flight."
Cons: "Paying for carry on bags-- 45$ Paying for any soda or food."

Pros: "Nothing"
Cons: "Arrived at the airport for a 5:45 AM flight and was told there was a four hour delay. Would have missed my connection in Denver to Seattle and instead of arriving in Seattle at 10 AM I would arrive there at 9 PM at night. I took a refund and went to Southwest where everyone was helpful and I was in Seattle by noon"

Pros: "They were on time & crew friendly."
Cons: "The charge for everything, even water, food, seats, carry on luggage."

Pros: "The affordability of the ticket"
Cons: "Checked baggage prices and how they are different online and at the check-in gate. They should be the same everywhere. The staff at the airport was rude."

Cons: "Very uncomfortable plane. Seats tiny and hard and did not recline. Paid $40 for a carry-on bag. Only water served without a charge for >2 hour flight."

Pros: "Not much"
Cons: "Seats are hard with almost no padding and don't recline, can't have a carry on. Tray table is too small to anything on! Front tier from my favorite airline to my least favorite airline in a matter of a few years!"

Pros: "should have free coffee"
Cons: "no coffee"

Pros: "thank goodness for isle seat"
Cons: "small leg room, seats didn't go back, really? not even coffee is free..."

Pros: "very smooth flight and excellent pilot and crew"
Cons: "I didn't get to pick my seat on this flight and had to sit in a middle seat."

Cons: "Had to cancel the return flight. was informed by Frontier that it was a forfeit of the trip, it would be noted as a no-show. I have never had that happen with ANY other airline. Frontier advertises itself as a low cost option which just is not true. If you want a seat that isn't in he belly it costs additional fees, even $5.00 for a lousy seat. Unless nothing else is available I will not fly Frontier ever again. I am attempting to get a refund of the federal taxes that applied to my ticket which the airline has NO right to."

Cons: "Original fight was cancelled and rescheduled for 6 hours earlier. Unable to do 6am flight and only other option was fly to Dallas first then the Denver. Long flight no food or entertainment."

Pros: "I liked the ticket prices."
Cons: "The seats were uncomfortable which made the entire flight uncomfortable."

Pros: "The ground based crew for Frontier based out of Milwaukee General Mitchell International Airport singlehandedly saved my patronage with Frontier. I had a terrible experience flying in, and was not met with positive attitude by flight crew or provided with any solutions. After explaining my scenario to the airport based crew out of Gen Mitchell Int'l, they took care of my concerns and treated me with patience and respect. As a result of my experience with the three women and one gentleman at the Frontier counter, they single handedly changed my mind about never wanting to fly Frontier again. Thank you Milwaukee crew, I wish everyone was as talented and professional as you. JBT"
Cons: "Seats, lack of wi-fi, constant barrage of reminders to remove garbage as 'flight attendants are required to clean the plane's. Yeesh."

Pros: "We were greeted and told, "We can get you to SLC until tomorrow", but that quickly changed to, "we can potentially book you on another airline". Within 30 minutes we were booked on a Delta flight that got us to SLC through Denver 30 minutes earlier than planned. We enjoyed beverages and snacks on Delta that would not have been provided by Frontier. The clerk at the Frontier ticketing counter was most helpful. We were able to make it to SLC and a wonderful vacation with family. We also received a voucher for $200 each. We will try Frontier again."
Cons: "Frontier did not have the appropriate redundancy to provide service for their passengers."

Pros: "The plane didn't crash"
Cons: "Being in the second to last row, we heard the stewardess talk NONSTOP for an hour. Bear in mind this was a 7am flight. Also, it seemed that the taxiing on arrival took a long time"

Pros: "Not much"
Cons: "Everything tha makes frontier itself."

Cons: "Having to pay for carry on bags"

Cons: "unconscionable fees, including baggage snacks and everything other than water. as long as your are at it whey not charge for water?"

Pros: "The trip was simple, quik & inexpensive."
Cons: "Seats were tight, snug"

Pros: "The flight wasn't full so I got to move from a middle seat to a window seat."
Cons: "The seats are very uncomfortable now."

Pros: "Got my luggage back!"
Cons: "Never even made the flight. It was delayed 2 hours which meant I missed the connection and there were no seats on any other flights to SNA so I had to rebook for the next day at noon. Missed my granddaughters birth due to all this and didn't even get compensation from the airline!"

Pros: "The price was cheap. Boarding was easy. Pilots were very nice."
Cons: "No entertainment. Have to pay for everything even just water which makes no sense. Crew did not want to be there and was not helpful. Took forever for people to get off much slower than other flights."

Pros: "Mobile flying was convenient."
Cons: "the trays are so small, it is almost impossible to set anything on. Frontier makes you pay for a carry on--$40, not only one way but both ways. They also make their passengers pay for drinks. A sprite is money? Really? The flight was freezing and when I asked for a blanket, they did not have one. I will never fly frontier again."

Cons: "Seat are uncomfortable"

Pros: "Fares were good"
Cons: "Everything is extra. This was the least expensive flight we found but after the hidden costs it would have been the most expensive. Carry on $40 each, check bags $35 each, even a cup of coffee wasn't included. Then after all that it was the least comfortable flight I have ever taken. I will never fly this airline again!"

Cons: "They wouldn't even provide a cup of ice water for waiting over 4 hours delay. Then another 45 minutes before pulling away from the gate."

Pros: "Clean, everyone was so friendly."
Cons: "Long delay. No clear signage or instructions how or where to pick up a car rental."

Pros: "Flight was on time."
Cons: "Seating is too tight."

Pros: "In the interest of always saying something positive, our check-in agents and flight attendants were friendly and positive both ways."
Cons: "-It cost an extra $17 if I wanted a seat on the plane -It cost an additional $35 if I wanted to bring any clothes -Flight to MKE was delayed over an hour -Flight back to DEN boarded on time and left a little early, however, upon arriving in DEN, there was no gate for us. We sat on the tarmac for about 20 minutes and actually ended up at the gate later than the scheduled arrival, so the early touchdown was pointless -It took almost 90 minutes for our luggage to be delivered to Baggage Claim"

Pros: "Flight staff were very hospitable and kind. Plane was clean and seats were comfortable."
Cons: "They seemed to charge for everything. Even carry ons! $40/carry on! So much for packing light to save money and help the airlines with fuel savings. Checked bags are $30 carry ons were $40!!!! Crazy! Also, there was a charge for a beverage or snack onboard. Insane."

Pros: "I cant really say that I liked it anything that much."
Cons: "I didn't like the fact that you had to pay $25 to check your luggage and then I think it was absolutely ridiculous that you have to pay $35 for a carry on. I don't understand why cost more money to carry on a bag then it will be to check your luggage. Also I think it's silly that they don't offer free complimentary snacks on the airplane and this seems don't even replying back. I thought this was a cheap flight but it turned out to be just as much as a regular Airline"

Pros: "Comfortable seat. Enough room to store my bags."
Cons: "The online check in to get boarding pass was extremely frustrating."

Pros: "The trip was okay overall. The plane was clean and we left and arrived on time. The price was good."
Cons: "The seats are pretty hard with little padding. Frontier charges for everything including choosing your seats in advance and carry on bags. But I suppose that is the consequence of low pricing. What was not acceptable is that they lost a bag en route. It was a bag we could have carried on, but since they charge more for carry ons than checked bags we checked it. As a result we could not ski the first day of a ski trip."

Pros: "Free seat upgrade at gate - Alex was very accommodating"
Cons: "Seats very uncomfortable, multiple delays for takeoff"

Pros: "Nothing"
Cons: "Canceled for no good reason. Never flying frontier ever again."

Cons: "While the fare for Frontier was reasonable; I chose them because of flight schedule. However, I couldn't believe how much more I had to pay than just the fare. Baggage fees for not only checked bag but carry-on plus the seat selection added $94 EACH WAY to my costs. That is unforgiving. I'm back to Southwest."

Pros: "Smooth flight"
Cons: "The seats were terribly uncomfortable!!! They had new thinner seats on my flight and you could feel little kids bumping or kicking your seat and every time they pulled down the little tray. The seats did not recline either. Very uncomfortable."

Pros: "The flight was on time, smooth, friendly staff."
Cons: "You have to pay for a carry on, which is more than a checked bag, no complimentary food or beverage. There isn't much leg room, even for a short person as myself."

Cons: "Before my flight I went on the Frontier website to find the dimensions listed for an acceptable carry on in an effort to avoid checking a bag and paying luggage fees. I purchased said acceptably sized carry on bag only to find upon checking in for my flight that I would be charged $45! I was also informed that selecting my seat would bring a charge as well. The "great deal" I was led to believe I'd found by flying this airline was simply untrue. When all was said and done, I could have flown more comfortably and for less money on another airline. Will never choose Frontier again."

Pros: "The spirit employees were very helpful when I checked in"

Pros: "The price"
Cons: "Communication"

Cons: "Spirit is unorganized and understaffed"

Pros: "Didn’t eat, no entertainment offered."
Cons: "N/a"

Cons: "20 min Delayed departure"

Pros: "Got what paid for"

Pros: "Everything is at an extra cost. From snacks to luggage to picking your seat."

Pros: "The people were really nice"
Cons: "Paying $52 for my one luggage"

Pros: "Price was right"
Cons: "Reserved my seat but didn't get it; cramped."

Pros: "Nothing"

Cons: "I wasn't flying to hawaii"

Cons: "Delayed 2 hrs"

Cons: "Making e-ticket should be easier and simpler."

Cons: "It's not that I didn't like it. They just don't offer food and entertainment."

Cons: "So uncomfortable no leg room at all"

Pros: "Same"
Cons: "Same"

Pros: "It was better than Frontier Airlines."

Pros: "Price"
Cons: "Comfort, fees, plane quality, overall quality"

Pros: "& quick"

Cons: "Every thing"

Cons: "Very uncomfortable ride. We a t-shirt hard ,zero leg room"

Pros: "They suck so bad!!!"
Cons: "They just suck really bad!!!"

Pros: "Nothing"

Pros: "Nothing!"
Cons: "The plane was delayed! They have all these secret fees"

Pros: "O"
Cons: "BEFORE YOU GET ON THE PLANE SO MUCH EASIER ON DELTA I WILL NOT BE BACK"

Pros: "Needs more room. Packed like sardines"

Pros: "Good seat, enough room"
Cons: "Cost for food"

Pros: "Nothing"
Cons: "Fees, late arrival"

Pros: "Price was good. i ]will fly Spirit whenever possible and I will rnecomend often"
Cons: "Delay other than I did get a reminder ."

Cons: "Flights delayed multiple times both ways."

Pros: "The whole experience. Very friendly."
Cons: "No complaints"

Cons: "Seating arrangement is horrible your legs are in front of your face"

Pros: "All was great but the extra large seat did not recline?"

Cons: "Did not do final leg"

Pros: "Zero."
Cons: "everything."

Pros: "Nothing"
Cons: "Everything"

Cons: "Payment for drinks"

Cons: "So late!"

Pros: "the service was wonderful, the l8nes wwnt by quickly"

Pros: "No frills or hassles"

Pros: "Everything went well from beginning to end."
Cons: "I have no complaints"

Pros: "The pilot made jokes about how cheap spirit airlines is."

Pros: "Low cost"
Cons: "Crowded seating"

Pros: "The good price and straightforward process"
Cons: "The delay but it happens"

Cons: "The plane smelled overwhelmingly like urine."

Cons: "Delayed like many spirit flights I have been on in the past"

Pros: "The ticket price was wonderful."
Cons: "Paying for luggage, seat, etc. - everything is an up charge."

Pros: "The price was great."
Cons: "The great price means basically no amenities. That's okay, I'll take the cheap price."

Pros: "Nothing ev"
Cons: "Everything"

Cons: "No military pre-boarding, charge for luggage."

Read more about Delta
COVID-19 information

Safety measures for airlines flying from Wisconsin to Colorado

Airlines flying from Wisconsin to Colorado 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 Wisconsin to Colorado

Mandatory masks

Masks required on board, masks provided on flights from Wisconsin to Colorado

Social distancing seating

Middle seats unavailable to book on flights from Wisconsin to Colorado

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Wisconsin to Colorado

Book cheap flights from Wisconsin to Colorado

Recent round-trip flight deals

9/28
Tue
1 stop
Spirit Airlines
6h 35m
MKE - DEN
10/2
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1 stop
Spirit Airlines
8h 18m
DEN - MKE
9/28
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nonstop
Multiple Airlines
2h 40m
MKE - DEN
10/2
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Multiple Airlines
8h 18m
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8/28
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Frontier
2h 40m
MKE - DEN
8/29
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nonstop
Frontier
2h 27m
DEN - MKE
9/11
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nonstop
Frontier
2h 40m
MKE - DEN
9/14
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nonstop
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2h 22m
DEN - MKE
9/15
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2h 28m
MSN - DEN
9/22
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nonstop
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2h 07m
DEN - MSN
8/28
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nonstop
Frontier
2h 40m
MKE - DEN
8/29
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nonstop
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2h 27m
DEN - MKE
9/11
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2h 40m
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9/14
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2h 22m
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9/29
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2h 28m
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10/6
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2h 07m
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9/28
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6h 35m
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2h 40m
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2h 25m
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9/13
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Spirit Airlines
31h 28m
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20h 50m
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2h 26m
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2h 09m
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2h 40m
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6h 13m
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12h 08m
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8/21
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8h 13m
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8/24
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32h 22m
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25h 00m
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17h 22m
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20h 50m
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2h 36m
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2h 28m
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5h 50m
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6h 11m
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Delta
6h 03m
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9/7
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Delta
7h 01m
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Recent one-way flight deals

8/24
Tue
nonstop
Frontier
2h 40m
MKE - DEN
9/29
Wed
nonstop
Frontier
2h 28m
MSN - DEN
9/14
Tue
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2h 40m
MKE - DEN
10/2
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Spirit Airlines
10h 49m
MKE - DEN
10/2
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2h 40m
MKE - DEN
9/5
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nonstop
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2h 40m
MKE - DEN
8/24
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Spirit Airlines
32h 22m
MKE - DEN
9/13
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30h 37m
MKE - DEN
8/16
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Spirit Airlines
32h 12m
MKE - DEN
8/23
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nonstop
United Airlines
2h 26m
MSN - DEN
9/4
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nonstop
United Airlines
2h 36m
MKE - DEN
9/11
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26h 22m
MKE - DEN
9/29
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Frontier
2h 28m
MSN - DEN
9/27
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Multiple Airlines
24h 08m
MSN - DEN
8/27
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Multiple Airlines
21h 03m
MSN - DEN
8/27
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Multiple Airlines
23h 33m
MKE - DEN
8/27
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American Airlines
4h 19m
MSN - DEN
9/11
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American Airlines
4h 48m
MKE - DEN
9/4
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Delta
4h 53m
MKE - DEN
8/27
Fri
nonstop
United Airlines
2h 26m
MSN - DEN
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