ATW - DEN

$65 Find Cheap Flights from Appleton 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 Appleton to Denver departing on 7/1. 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

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 Appleton 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 Appleton to Denver, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Expert advice
Useful Info
Flights Deals

Cheap Flights from Appleton to Denver (ATW-DEN)

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

Sun, Sep 7 - Thu, Sep 11
Allegiant Air Logo
3:20 pm - 4:54 pmATW-DEN
2h 34mnonstop
Allegiant Air Logo
5:44 pm - 9:01 pmDEN-ATW
2h 17mnonstop
$98Allegiant Air
Find Deal
Tue, Jul 1 - Thu, Jul 10
Allegiant Air Logo
10:00 am - 11:33 amATW-DEN
2h 33mnonstop
Allegiant Air Logo
8:22 pm - 11:38 pmDEN-ATW
2h 16mnonstop
$104Allegiant Air
Find Deal
Fri, Aug 22 - Mon, Aug 25
American Airlines Logo
3:25 pm - 10:55 pmATW-DEN
8h 30m1 stop
American Airlines Logo
5:32 pm - 11:34 pmDEN-ATW
5h 02m1 stop
$219American Airlines
Find Deal
Tue, Jul 22 - Wed, Jul 30
Delta Logo
6:07 pm - 11:06 pmATW-DEN
5h 59m1 stop
Delta Logo
6:35 am - 11:18 amDEN-ATW
3h 43m1 stop
$229Delta
Find Deal
Fri, Aug 22 - Tue, Aug 26
American Airlines Logo
3:25 pm - 10:55 pmATW-DEN
8h 30m1 stop
American Airlines Logo
7:20 am - 6:02 pmDEN-ATW
9h 42m2 stops
$234American Airlines
Find Deal
Fri, Aug 8 - Wed, Aug 13
Delta Logo
6:07 pm - 11:06 pmATW-DEN
5h 59m1 stop
Delta Logo
2:00 pm - 10:53 pmDEN-ATW
7h 53m1 stop
$239Delta
Find Deal
Sat, Jul 5 - Sat, Jul 12
United Airlines Logo
6:30 am - 10:35 amATW-DEN
5h 05m1 stop
United Airlines Logo
5:20 pm - 8:54 pmDEN-ATW
2h 34mnonstop
$259United Airlines
Find Deal
Fri, Jul 4 - Wed, Jul 9
United Airlines Logo
8:40 am - 10:32 amATW-DEN
2h 52mnonstop
United Airlines Logo
2:44 pm - 9:35 pmDEN-ATW
5h 51m1 stop
$289United Airlines
Find Deal
Tue, Jul 1 - Thu, Jul 10
 Logo
10:00 am - 11:33 amATW-DEN
2h 33mnonstop
 Logo
6:00 am - 8:12 amDEN-ATW
25h 12m3 stops
Tue, Jul 1 - Thu, Jul 10
 Logo
10:00 am - 11:33 amATW-DEN
2h 33mnonstop
 Logo
6:00 am - 8:12 amDEN-ATW
25h 12m3 stops
Expert advice

Expert advice for your flight from Appleton to Denver

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United's Economy Plus offers up to six inches more legroom than standard economy seats.


United's Priority Boarding puts you in Zone 2, ensuring overhead bin space for your carry-on.

Allegiant Air

Allegiant's Legroom+ offers extra space and faster deplaning, ideal for budget-conscious travelers.


Allegiant's Bonus bundle includes carry-on, seat selection, and ticket change flexibility.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

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.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Allegiant Air

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Useful Info

KAYAK's insights & trends for Appleton to Denver flights

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

Find cheap flights to Denver
Find cheap flights to Denver

Planning a trip from Appleton to Denver? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

When flying from Appleton to Denver, you should consider leaving on a Sunday and avoid Mondays if you are looking for the best rates. For your return to Appleton, you’ll find the best rates on Thursdays and the most expensive ones on Mondays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Appleton 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 Appleton to Denver is September, where tickets cost $206 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $454 and $404 respectively.

How far in advance should I book a flight from Appleton 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 Appleton 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 Appleton to Denver, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonFebruary
High seasonSeptember
Cheapest flight$65
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 37% lower on average.
Flight from Appleton to Denver

When to book flights from Appleton to Denver

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

  • Can passengers travel on American Airlines from Appleton to Denver with children?

    When parents travel with children from Appleton to Denver on American Airlines, they can have peace of mind knowing their children will have a safe and comfortable journey. American Airlines offers special provisions for children under two years old, including priority boarding and safety seats with secure back and seat structures and restraining straps to ensure the child's safety.

  • Can passengers from Appleton travel to other cities after landing?

    Upon arrival at Denver International Airport (DEN), you have the convenience of traveling to a multitude of destinations both within Colorado and beyond. Whether you desire to visit nearby locations like Boulder, Aspen, Colorado Springs, and Vail or explore other domestic and international destinations, Denver International Airport provides a wide range of flight options, ensuring you can continue your journey to cities across the region.

  • Can I travel with my pet from Appleton to Denver on United Airlines flights?

    When traveling with pets, United Airlines ensures a top-notch experience by prioritizing your furry companions' health, safety, and comfort. United Airlines offers exceptional pet services, accommodating pets of any species, irrespective of size or weight, with the option to have them in the cabin. Additionally, pets can be transported as cargo.

  • Which Airlines fly Business class from Appleton to Denver?

    To travel from Appleton to Denver in Business Class, you can make reservations with United Airlines or American Airlines. Opting for Business Class offers numerous advantages, including enhanced amenities for comfort. For instance, United Airlines provides passengers with on-demand entertainment through a 15-inch seatback screen and seats that can be transformed into beds, ensuring a more comfortable travel experience.

  • What is the cheapest flight from Appleton to Denver?

    In the last 3 days, the lowest price for a flight from Appleton to Denver was $65 for a one-way ticket and $98 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

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

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

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

  • Which airline alliances offer flights from Appleton to Denver?

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

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

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

  • Which is the best airline for flights from Appleton to Denver, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Appleton to Denver are Delta and United Airlines. With an average price for the route of $295 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $417 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Appleton 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 Appleton to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Appleton 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 Appleton 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 Appleton with another airline. Booking your flights between Appleton 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 Appleton 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 Appleton 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 Appleton to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $153 or less one-way and $162 or less round-trip.
  • Delta, a famous airline offering flights from Appleton (ATW) to Denver (DEN), has set a goal to achieve carbon neutrality by 2050 by implementing measures to decarbonize its operations. To reduce its environmental impact, Delta has shifted its focus towards investing in sustainable aviation fuel and acquiring more fuel-efficient planes. This commitment by Delta to address climate change and promote sustainable practices in the aviation industry is evident in its proactive approach.
  • Passengers with limited mobility can have a great travel experience on American Airlines when flying from Appleton to Denver. American Airlines has a trained service team that assists passengers with disabilities at airports and during the flight. Additionally, they offer accessible toilets and wheelchairs to ensure the comfort and convenience of individuals who require them.
  • Getting to Downtown Denver is a straightforward process after your flight from Appleton to Denver International Airport (DEN). The airport is conveniently connected to downtown via the airport train line. The Regional Transportation District (RTD) operates the A Line, which provides transportation between the airport and Downtown Denver. A one-way trip on the A Line costs about $10.50 and allows passengers to reach their destination in Downtown Denver easily.
  • Consider booking with Allegiant Air to enjoy their generous baggage allowance policy. Passengers can bring a maximum of 5 checked bags, each at most 50 lbs. Out of these, up to 4 bags per person can be pre-booked online. However, there will be a baggage fee charged for checking luggage. Additional charges will be applicable for sporting equipment, excess baggage, overweight bags, and oversized checked bags.
  • For passengers who live far from Appleton and would like to spend a night before their flight at Appleton International Airport (ATW), consider reserving one of the airport hotels. The nearby hotels include the Hilton Garden Inn Appleton/Kimberly, Quality Inn & Suites Kimberly, Hampton Inn Appleton, Country Inn & Suites by Radisson, and GrandStay Hotel & Suites Appleton-Fox River Mall.

Prefer to fly direct from Appleton to Denver?

Find which airlines fly direct from Appleton Intl Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Appleton Intl to Denver Intl

Monday

United Airlines

United Airlines

Tuesday

Allegiant Air, United Airlines

Allegiant Air, United Airlines

Wednesday

United Airlines

United Airlines

Thursday

Allegiant Air, United Airlines

Allegiant Air, United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

Allegiant Air, United Airlines

Allegiant Air, United Airlines

See more direct flights

Direct returns

Denver Intl to Appleton Intl

Monday

United Airlines

United Airlines

Tuesday

Allegiant Air, United Airlines

Allegiant Air, United Airlines

Wednesday

United Airlines

United Airlines

Thursday

Allegiant Air, United Airlines

Allegiant Air, United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

Allegiant Air, United Airlines

Allegiant Air, United Airlines

See more direct flights
See more direct flights

Top 4 airlines serving from Appleton to Denver

 
See real verified KAYAK customer reviews for airlines flying from Appleton 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 Appleton 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
DeltaOverall score based on 7950 reviews
7.3Food
7.9Comfort
7.9Entertainment
8.2Boarding
8.5Crew
Airline reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

10.0 ExcellentHartaj, Jun 2025EWR - RDU
Read more Delta reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

I am very bothered by the events today. I can't believe the flight attendants allowed someone to take my seat and made me move. It was embarrassing. I was in the right. The lady just didn't want move. I can't believe delta would allow this to stand and disrespect my rights as a passenger. The lady complained about her leg and that she couldn't move. Firstly somehow she was able to make it to row 24. Not sure how much her leg could have hurt. Secondly, I'm in plenty of pain myself. I just finished chemotherapy a several weeks ago. My body is constantly sore. Yet deltas flight attendants didn't appropriately protect my rights. In the end they found me a seat on the plane but I want to understand how delta can operate this way. They in essence allowed a bully to get their way.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

Tight! Seats are not designed for those of us who wear extra-large clothes.

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

They boarded passengers that sat in the back of the plane first, making boarding very efficient.

I didn't even take this flight. My plans changed and I couldn't get ahold of customer service and the website kept breaking down during the attempt to change the flight. I wound up taking another airline entirely and eating the cost.

The worst flying experience ever 3 delays. No accommodations. Had to deboard the plane after being delayed.

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.