ATW - DEN

$132 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 6/8. 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 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
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Everything you should know

Cheapest round-trip
$231
Overall average: $337
Allegiant Air
Fri 5/22Mon 5/25
ATW - DEN • Non-stop
Cheapest one-way
$132
Typical prices: $86-$233
Allegiant Air
Mon 6/8
ATW - DEN • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Allegiant's Bonus bundle includes carry-on and seat selection.
United's Economy Plus offers extra legroom for comfort.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Denver
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Top airlines
Allegiant Air
Cheapest • from $231 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
6 weeks
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 30% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 28% price drop
June
Most popular
Good to know
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+1
+1
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+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
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Flight 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

Fri, May 22 - Mon, May 25
Allegiant Air Logo
5:35 pm - 7:14 pm
ATW
-
DEN
2h 39mnonstop
Allegiant Air Logo
7:34 pm - 10:49 pm
DEN
-
ATW
2h 15mnonstop
$231Allegiant Air
Fri, May 22 - Mon, May 25
Allegiant Air Logo
5:35 pm - 7:14 pm
ATW
-
DEN
2h 39mnonstop
Allegiant Air Logo
7:34 pm - 10:49 pm
DEN
-
ATW
2h 15mnonstop
$232Allegiant Air
Sat, Mar 14 - Tue, Mar 17
American Airlines Logo
6:35 pm - 10:37 pm
ATW
-
DEN
5h 02m
1 stop
American Airlines Logo
11:59 pm - 9:06 am
DEN
-
ATW
8h 07m
2 stops
$234American Airlines
Mon, May 18 - Fri, May 22
Multiple Airlines Logo
9:30 am - 10:53 pm
ATW
-
DEN
38h 23m
2 stops
Multiple Airlines Logo
8:04 pm - 11:19 pm
DEN
-
ATW
2h 15mnonstop
$235Multiple Airlines
Wed, Apr 22 - Sat, Apr 25
United Airlines Logo
5:30 pm - 10:05 pm
ATW
-
DEN
5h 35m
1 stop
United Airlines Logo
5:32 pm - 9:05 pm
DEN
-
ATW
2h 33mnonstop
$238United Airlines
Sat, May 16 - Tue, May 19
Delta Logo
4:13 pm - 8:15 pm
ATW
-
DEN
5h 02m
1 stop
Delta Logo
6:00 am - 11:51 am
DEN
-
ATW
4h 51m
1 stop
$239Delta
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
8:24 am - 10:35 am
ATW
-
DEN
3h 11mnonstop
United Airlines Logo
6:00 am - 2:03 pm
DEN
-
ATW
7h 03m
1 stop
$242United Airlines
Sat, May 23 - Wed, May 27
United Airlines Logo
8:30 am - 10:15 am
ATW
-
DEN
2h 45mnonstop
United Airlines Logo
5:40 pm - 9:05 pm
DEN
-
ATW
2h 25mnonstop
$243United Airlines
Mon, Jun 8 - Mon, Jun 15
Allegiant Air Logo
4:58 pm - 6:39 pm
ATW
-
DEN
2h 41mnonstop
Allegiant Air Logo
7:29 pm - 10:44 pm
DEN
-
ATW
2h 15mnonstop
$244Allegiant Air
Fri, Jun 5 - Fri, Jun 12
Allegiant Air Logo
4:58 pm - 6:39 pm
ATW
-
DEN
2h 41mnonstop
Allegiant Air Logo
7:29 pm - 10:44 pm
DEN
-
ATW
2h 15mnonstop
$247Allegiant Air
Booking Insights

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 Fridays.

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 July, where tickets cost $227 (return) on average. On the other hand, the most expensive months are March and January, where the average cost of round-trip tickets is $417 and $382 respectively.

Can I save money by flying with a layover from Appleton 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 $364, prices are generally cheapest when you fly direct.

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 6 weeks before departure, which saves you about 30% 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 Appleton 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

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.

Daniel Scheffler

Daniel Scheffler

Expert on Allegiant Air

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.

Good to know

Low seasonJanuary
Cheapest flight$132
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 25% 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 $132 for a one-way ticket and $231 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?

    Delta, JetBlue, and American Airlines 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?

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

  • 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 $305 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $404 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 $308 or less one-way and $359 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?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Appleton Intl to Denver Intl.
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

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Denver Intl to Appleton Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the 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.
7.9
DeltaOverall score based on 8205 reviews
7.2Food
7.9Comfort
8.1Boarding
8.5Crew
7.8Entertainment
Airline reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

10.0 ExcellentSoosnata, Feb 2026
LAX - HNL
Read more Delta reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was delayed. No information on why it was delayed. After we boarded the flight, , the crew made announcement that the captain hs not arrived and he will take 15 mins more to arrive. Passengers were just sitting patiently for the captain to arrive and start, Terrible experience.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

This was my first time flying Delta ever and I had a great experience!

Smallest leg room I've ever had on a plane.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

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.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

Didn't get a seat assignment until the last minute even though i picked a seat.

American has been able to implement an algorithm that makes it possible for nearly every one of my evening flights to be late. Congratulations!

I was on a small regional flight from Detroit to Philadelphia. When we landed the outside cruise needed to turn something off with the engine, which took quite a long time. Then, when they allowed us to get off the plane it was outside. They took their time, unloading all the luggage and waited till they unloaded all the luggage before they brought it over to us. It was 9 o’clock at night freezing cold out, and there was no proactive hustle to try to get people their luggage. It was really one of the worst experiences I think I’ve ever had with American until a manager came over. I don’t think they were going to even consider pulling the luggage over to the people that had been waiting outside for at least 10 minutes in the freezing cold.

The flight was fine, once we got underway. It was more than hour delayed

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Waited for oxygen tanks for 30 minutes after boarding was complete.

The seats are too uncomfortable for anyone over 5ft 8in. I'm 5'10" with a back and hip issue and I was in pai for the full duration of the flight.

The flight was on time/early, attentive crew, and everything overall went smoothly. Disappointed that WIFI was not working for the flight.

One day, I do so hope for a gluten free snack! Seems like with the rest of the world FINALLY figuring out what gluten free is, American Airlines would too. Fingers crossed!!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

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

Information on your arrival and departure airports