MKE - DEN

$58 Find Cheap Flights from Milwaukee to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Milwaukee to Denver departing on 3/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

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

Cheapest round-trip
$201
Overall average: $297
Frontier
Thu 4/16Mon 4/20
MKE - DEN • 1 stop
Cheapest non-stop
$206
Typical prices: $184-$460
Frontier
Fri 3/20Mon 3/30
MKE - DEN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier's Economy Bundle includes a carry-on and seat.
Southwest offers two free checked bags, saving costs.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
Every day
You can fly direct with Southwest, United Airlines and Frontier. Average duration is 2h 45m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Chicago (ORD)
Cheapest • Avg $283 (round-trip)
Detroit (DTW)
Shortest trip • 5h 05m (one-way)
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 8% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 26% price drop
July
Most popular
Good to know
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+1
+1
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+1
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We hope you love your trip to Denver!
Flight Deals
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Flight Deals

Cheap Flights from Milwaukee to Denver (MKE-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Milwaukee to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Milwaukee to Denver

Thu, Apr 16 - Mon, Apr 20
Frontier Logo
12:03 pm - 2:31 pm
MKE
-
DEN
27h 28m
1 stop
Frontier Logo
9:55 am - 6:47 pm
DEN
-
MKE
7h 52m
1 stop
$201Frontier
Fri, Mar 20 - Mon, Mar 30
Frontier Logo
7:46 pm - 9:34 pm
MKE
-
DEN
2h 48mnonstop
Frontier Logo
2:49 pm - 6:20 pm
DEN
-
MKE
2h 31mnonstop
$206Frontier
Fri, Mar 20 - Mon, Mar 30
Frontier Logo
11:16 am - 11:04 pm
MKE
-
DEN
12h 48m
1 stop
Frontier Logo
2:49 pm - 6:20 pm
DEN
-
MKE
2h 31mnonstop
$208Frontier
Fri, Mar 20 - Fri, Mar 27
Frontier Logo
7:46 pm - 9:34 pm
MKE
-
DEN
2h 48mnonstop
Frontier Logo
3:22 pm - 6:51 pm
DEN
-
MKE
2h 29mnonstop
$209Frontier
Fri, Mar 13 - Wed, Mar 18
Frontier Logo
7:46 pm - 9:34 pm
MKE
-
DEN
2h 48mnonstop
Frontier Logo
11:59 pm - 8:06 pm
DEN
-
MKE
19h 07m
1 stop
$210Frontier
Thu, Mar 12 - Mon, Mar 16
Frontier Logo
8:25 am - 4:38 pm
MKE
-
DEN
9h 13m
1 stop
Frontier Logo
2:49 pm - 6:20 pm
DEN
-
MKE
2h 31mnonstop
$213Frontier
Thu, Mar 19 - Wed, Mar 25
Frontier Logo
9:01 pm - 8:20 am
MKE
-
DEN
12h 19m
1 stop
Frontier Logo
10:30 pm - 1:02 pm
DEN
-
MKE
13h 32m
1 stop
$214Frontier
Sat, May 9 - Sat, May 16
Frontier Logo
7:42 pm - 8:55 am
MKE
-
DEN
14h 13m
1 stop
Frontier Logo
11:59 pm - 11:08 am
DEN
-
MKE
10h 09m
1 stop
$215Frontier
Mon, Mar 16 - Mon, Mar 23
Frontier Logo
10:38 am - 11:04 pm
MKE
-
DEN
13h 26m
1 stop
Frontier Logo
10:30 pm - 1:02 pm
DEN
-
MKE
13h 32m
1 stop
$217Frontier
Mon, Mar 23 - Sun, Mar 29
Frontier Logo
7:15 pm - 9:03 pm
MKE
-
DEN
2h 48mnonstop
Frontier Logo
11:59 pm - 10:03 am
DEN
-
MKE
9h 04m
1 stop
$218Frontier
Booking Insights

KAYAK's insights & trends for Milwaukee to Denver flights

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

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

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

When flying from Milwaukee to Denver, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Milwaukee, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from Milwaukee to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Milwaukee to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Milwaukee to Denver is September, where tickets cost $245 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $392 and $384 respectively.

Can I save money by flying with a layover from Milwaukee to Denver?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $416, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Milwaukee to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Milwaukee to Denver, you should book around 3 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Expert advice

Expert advice for your flight from Milwaukee to Denver

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low seasonJanuary
Cheapest flight$58
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Milwaukee to Denver

When to book flights from Milwaukee to Denver

Are your dates flexible? Find out the best times to travel from Milwaukee to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Milwaukee to Denver

  • How can I fly from MKE to DEN?

    United Airlines and Southwest both operate several non-stop flights every day. Frontier and Delta operate several one stop flights from MKE to DEN every day. Layovers for these flights occur in cities such as Minneapolis (MSP), Las Vegas (LAS), and Detroit (DTW).

  • Is there a USO at MKE?

    MKE is proud to offer a USO lounge located pre-security in the main terminal that serves as a place where military members can relax and regroup while they travel. In the lounge, military members can watch TV, read, relax, use the computer, and enjoy beverages and snacks. This lounge is available to any active-duty military traveler. The USO is open from 8 am to 8 pm Monday and Tuesday and from 8 am to 6 pm on Wednesday through Sunday.

  • Does MKE provide designated areas where children can play as they wait for their flight?

    Yes. There is a children's play area in every terminal in the MKE airport. These play areas feature small tunnels, slides, and airplanes that are soft, easy to climb on, and safe.

  • Does MKE offer designated spaces for nursing mothers?

    MKE has installed Mamava pods in the main terminal across from the Miller Brew House, at Bronzeville on Concourse C, and near the children's play area on Concourse D. A Mamava pod is a free standing 4x8 cabin made of fiberglass and Corian where a nursing mother can have some privacy to either breastfeed or pump. These sanitized areas feature comfortable seating, a fold down shelf, a mirror, a power outlet, and a USB outlet. On Concourse D, MKE also provides a Nursing Room.

  • What is the cheapest flight from Milwaukee to Denver?

    In the last 3 days, the lowest price for a flight from Milwaukee to Denver was $58 for a one-way ticket and $201 for a round-trip.

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

    A passport is not required to fly from Milwaukee to Denver.

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

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

  • Which aircraft models fly most regularly from Milwaukee to Denver?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Milwaukee to Denver flight route.

  • Which airline alliances offer flights from Milwaukee to Denver?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Milwaukee and Denver, with SkyTeam being the most commonly used for this route.

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

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

  • Which is the best airline for flights from Milwaukee to Denver, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Milwaukee to Denver are Southwest and Delta. With an average price for the route of $368 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $407 and an overall rating of 7.9.

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

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Milwaukee to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Milwaukee is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Milwaukee to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Milwaukee with another airline. Booking your flights between Milwaukee and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Milwaukee to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Milwaukee up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Milwaukee to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $181 or less one-way and $331 or less round-trip.
  • At the Denver International Airport (DEN), when you land, you'll find many shops where you can pick up things that you need before you start your Denver visit. To stock up on toiletries that airline restrictions prevent you from taking on a plane, check out any of the many gift shops and newsstands, including Peak News and Gifts. If you are visiting a friend in Denver and want to give them a nice bottle of perfume or liquor, consider shopping at Denver Duty Free before you leave the airport.
  • Milwaukee Mitchell International Airport (MKE) provides facilities with adult changing tables for adults and their caregivers. These adult-sized, height-adjustable changing stations can be found in the public restrooms in the Main Terminal and Concourse D.
  • If you want to get the kinks out once you arrive in Denver from Milwaukee, you can get a massage at DEN in one of the concourse spas. The A Massage spa is in Concourse B on the mezzanine level. The Colorado Oasis spa is at the C gates of the center core. At either of these places, you can receive relaxing treatments before you head into Denver.
  • In Denver, the RTD supplies the A-line bus in order to get passengers from DEN into Denver. This is an affordable option, as is the train. Trains leave DEN headed into downtown Denver about 3 times an hour.
  • There are several animal relief service areas located at in the DEN terminals. These relief stations are usually found approximately in the middle of where all the gates are in Terminals A, B, and C. If you are in the Jeppesen Terminal, you will need to go to level 2, on the northwest side, to find the relief area.

Prefer to fly direct from Milwaukee to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Milwaukee-Mitchell to Denver Intl.
Find which airlines fly direct from Milwaukee-Mitchell Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Milwaukee-Mitchell to Denver Intl

Monday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Tuesday

Southwest, United Airlines

Southwest, United Airlines

Wednesday

Southwest, United Airlines

Southwest, United Airlines

Thursday

Southwest, United Airlines

Southwest, United Airlines

Friday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Saturday

Southwest, United Airlines

Southwest, United Airlines

Sunday

Southwest, United Airlines

Southwest, United Airlines

See more direct flights

Direct returns

Denver Intl to Milwaukee-Mitchell

Monday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Tuesday

Southwest, United Airlines

Southwest, United Airlines

Wednesday

Southwest, United Airlines

Southwest, United Airlines

Thursday

Southwest, United Airlines

Southwest, United Airlines

Friday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Saturday

Southwest, United Airlines

Southwest, United Airlines

Sunday

Southwest, United Airlines

Southwest, United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Milwaukee to Denver

 
See real verified KAYAK customer reviews for airlines flying from Milwaukee to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Milwaukee to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4298 reviews
7.0Food
8.1Boarding
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

The WiFi and crew on the plane were good, however, the boarding experience was awful. I paid for the Choice Preferred and was boarded in group 5 so all overhead storage was full. They found room for our luggage, but further back making getting off the plane a nightmare. Also, we were in row 6 and the seats were extremely uncomfortable. Both my daughter and I had no leg room and couldn’t wait to get off the plane.

4.0 OkayAnonymous, Feb 2026
BOI - LAS
Read more Southwest reviews

The WiFi and crew on the plane were good, however, the boarding experience was awful. I paid for the Choice Preferred and was boarded in group 5 so all overhead storage was full. They found room for our luggage, but further back making getting off the plane a nightmare. Also, we were in row 6 and the seats were extremely uncomfortable. Both my daughter and I had no leg room and couldn’t wait to get off the plane.

The charges were ridiculous for an hour flight and the turbulence was very scary.

Still need to work out the kinks on the new assigned seating boarding process. Otherwise, a very good flight.

WiFi did not work. Boarding with the new seating assignments took too long. The temperature in the terminal was obnoxious. +/- 80°

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

I was assigned seat 7E, yet my boarding was Group 5, which caused me to have to put my luggage in the back of the plance above `19 or 20 aisle, as passengers who had boarded earlier took the overhead bins in the front. SW needs to monitor bin space and ensure that bin space above the seat are aligned to those sitting near their seats. Also the seating assignments needs to align with group number. Maybe board those last first and so on? Having said the ALL the passengers on the plane were gracious enough to allow me and other passengers in this dilema to retrieve our luggage and helped us along the way. I always love the flight staff, as always their fantastic and I can't rave about them enough!

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Very Very late. Subsequent flights left an hour before ours

This is my worse experience with Delta. My colleagues and I were traveling to ICT for work. Usually we connect in Dallas, but this year we decided to book with Delta and connect in Atlanta. We were excited to fly with Delta because we hear great things and Delta is one of my top choices when choosing an airline for travel. On the connecting flights to and from Wichita/Atlanta - it felt hot and uncomfortable on the plane. The plane to ICT was smaller and older and did not have any wi-fi or entertainment. The most terrible experience was at boarding in Atlanta both times traveling to Wichita and then back to Tampa. First on our flight from ATL to ICT - the attendant scanning our boarding pass made us go back to the line when we went up to scan our passes to wait. After a few minutes, she allowed us to come back up to scan but then she asked what boarding zone we were. We told her zone 5, and since we were standing on the wrong side of the small rope partition, she made us go back to stand on the right side. There was another gentleman that came up to board and scan his pass, and she mentioned he was also on the wrong side but she let him go through. Our group had to walk back and forth for no reason, causing an unnecessary delay to board the plane. We have never experienced anything like this, especially when the boarding area was completely empty and everyone already boarded since boarding was earlier than the original boarding time. On our flight from ATL to TPA, the attendants scanning our boarding passes had us scan our passes twice, not explaining to us what was going on. They automatically started tagging our carry on bags and did not explain to us or tell us what was going on and why this was happening. Obviously we knew our bags were being forced to check in but with no reason. There was no announcement or mention and I have never had anyone force me to check in my bag before boarding the plane. We assumed the overhead bins were full but when we boarded the plane, there was a lot of empty bins and a lot of spaces to put our bags. We all were disappointed and frustrated with Delta and will be hesitant to fly Delta again or anytime soon.

Boarding and crew were fantastic, but I paid for a window seat with no window. Seat 11D on a CRJ-900 apparently does not have a window. Lesson learned.

Terrible. Four hour delay because Delta could not find crew to man the aircraft. Terrible communication. Terrible insight into the delays. One of the worst flight experiences I’ve had.

The landing was the worst I’ve experienced with a flight.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

As great a red-eye flight as red-eye flights can be.

Both of my flights arrived early and check in process was smooth

Everything was on time Will use united again for sure

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

As previously stated the delay I experienced flying from Wichita to Chicago caused a host of issues. When I finally was able to be booked on the last remaining American flight from Chicago to Cincinnati, the gate changed four times with the last change occurring very near the scheduled boarding time. While I didn't have a problem moving from gate to gate, I did notice and make note of others that had mobility issues and had to move each time for the gate change.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

There was free WiFi (definitely a plus), but the flight was delayed 45 minutes waiting on a catering truck that never arrived. The pilot said there would be food vouchers given out at the end of the gangway to make up for the inconvenience, but there was no one offering those. Delay made me late for work!

Waiting for gate in RDU for more than 20mins is crazy.

Flight was on time and there was an empty seat next to me. That makes for a good flight!

Maintenance took a very long time and then we were in a holding pattern. While a one-off maintenance issue is standard, there were delays on both of my flights for this trip based on maintenance issues with the planes, which delayed both flights over 45 minutes. Thankfully, I didn't have any connections but it wasn't an experience that would make me pick AA if I have other options.

I like that the flight attendant was very attentive and helpful. The meal menu could have more of an variety of food choices.

Everything was good. Flight was very full so crew was busy. After we boarded and plane pulled away from the gate, we were delayed about 40 minutes- sitting on the runway - due to weather en route or at the destination. While weather is not the fault of the airline- it’s terrible to sit on a plane and not moving.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

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

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

Everything you need to know for your flight from Milwaukee to Denver

Other airlines flying from Milwaukee to Denver

Flights from the other most popular airlines that fly from Milwaukee to Denver according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.