HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$118+ Cheap flights from Appleton to Denver (ATW - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — DEN
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Appleton to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Appleton Intl to Denver Intl are usually found in September or May, booked 88 days in advance, depart on a Sunday or Thursday and return on a Thursday

Cheap flight deals from Appleton to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Appleton (ATW) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2025.

Most accurate provider

Flightnetwork
3 stars

Most trusted provider

Flightnetwork
3 stars

Round-trip from

$138
(Kiwi.com)

One-way from

$118
(Booking.com)

Popular in

March

Cheapest in

September

Average price

$278

Good round-trip deal

$172 or less

Good one-way deal

$132 or less
Provider with most accurate pricing for Appleton Intl-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Appleton Intl-Denver Intl flights.
Search Deals
From Appleton Intl to Denver Intl
Search Deals
One-way flight from Appleton Intl to Denver Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Appleton Intl to Denver Intl.
Search Deals
Price to beat on a one-way flight from Appleton Intl to Denver Intl.
Search Deals

Find flight deals from Appleton to Denver

Cheapest flights from Appleton to Denver
Explore the most affordable flight options available from Appleton to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/251:05 pmATW - DEN
Nonstop2h 34mAllegiant Air
Sun 5/258:24 pmDEN - ATW
Nonstop2h 14mAllegiant Air
Deal found 4/28$138
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1711:11 amATW - DEN
1 stop7h 19mDelta
Sat 5/246:00 amDEN - ATW
1 stop4h 11mDelta
Deal found 4/29$219
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2911:26 amATW - DEN
1 stop6h 41mAmerican Airlines
Mon 6/211:59 pmDEN - ATW
2 stops9h 57mAmerican Airlines
Deal found 4/29$234
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/18:40 amATW - DEN
Nonstop2h 52mUnited Airlines
Fri 7/46:00 amDEN - ATW
1 stop7h 08mUnited Airlines
Deal found 4/28$279
This Mytrip deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/251:05 pmATW - DEN
Nonstop2h 34mMultiple Airlines
Thu 5/296:30 pmDEN - ATW
3 stops28h 08mMultiple Airlines
Deal found 4/28$333

Cheapflights Fare Finder

Customize your flight search to find flights from Appleton to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
Use the filters below to find and compare flights from Appleton to Denver that are best for you.

Fly from

Appleton

Fly to

Denver

Route

Depart

Return

Price

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sun 5/25

1:05 pm-2:39 pm

Nonstop2h 34m

Denver Intl

Sun 5/25

8:24 pm-11:38 pm

Nonstop2h 14m

$138

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Fri 5/30

2:43 pm-8:33 pm

1 stop6h 50m

Denver Intl

Sat 6/7

5:32 pm-9:05 pm

Nonstop2h 33m

$219

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Fri 5/30

7:10 am-1:55 pm

1 stop7h 45m

Denver Intl

Tue 6/10

6:05 am-11:19 am

1 stop4h 14m

$229

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Thu 5/29

11:26 am-5:07 pm

1 stop6h 41m

Denver Intl

Mon 6/2

11:59 pm-10:56 am

2 stops9h 57m

$234

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sun 5/25

1:05 pm-2:39 pm

Nonstop2h 34m

Denver Intl

Thu 5/29

6:30 pm-11:38 pm

3 stops28h 08m

$333

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Tue 7/15

10:00 am-11:33 am

Nonstop2h 33m

$118

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sat 5/17

11:11 am-5:30 pm

1 stop7h 19m

$120

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Tue 7/15

6:10 pm-10:47 pm

1 stop5h 37m

$143

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Fri 6/20

8:40 am-10:31 am

Nonstop2h 51m

$224

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Wed 5/14

7:00 am-3:05 pm

3 stops33h 05m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Compare providers for flights from Appleton to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Appleton to Denver in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Appleton-Denver flights, users find the pricing of Flightnetwork to be most consistent on Cheapflights vs. Flightnetwork Users can find the same prices on Appleton-Denver flight deals on Cheapflights vs. Flightnetwork >95% of the time. Price accuracy is based on data collected from Appleton-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Appleton-Denver flights, Cheapflights users trust Flightnetwork the most. Flightnetwork has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Appleton-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Appleton to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Appleton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Appleton to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Appleton to Denver. Price data was last updated on April 25, 2025.

The best time to book flights from Appleton to Denver is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Appleton to Denver?

Currently, October is the cheapest month in which you can book a flight from Appleton to Denver (average of $197). Flying from Appleton to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ATW to DEN?

Find hourly flight availability from Appleton to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

When flying from Appleton to Denver, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 79% versus a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Appleton to Denver. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Appleton to Denver flight should consider departing on Sunday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated April 29, 2025.
Get a feel of what it's like to fly with Delta, United Airlines and Allegiant Air from Appleton to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Allegiant Air
7.3
Good
734 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Appleton to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Appleton to Denver flight route?

    This flight path from Appleton Intl to Denver Intl was viewed by 20 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Appleton to Denver round-trip?

    Currently priced at $138, Allegiant Air will fly you from Appleton to Denver and back. In addition to Allegiant Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $219 and $229, respectively. Allegiant Air is priced at 55% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Appleton to Denver one-way?

    One-way options have recently been found by users for as low as $118 on Allegiant Air. Other airlines that offer cheap prices include Delta from $120 and American Airlines from $143 one-way.

  • What are the cheapest flights from Appleton to Denver?

    The cheapest flight price from Appleton to Denver is $59. On average you can expect to pay $702. The most popular route, (Appleton Intl - Denver Intl), can usually be booked for $103.

  • Where are the most common layover locations when flying from Appleton to Denver?

    Appleton to Denver flights have a layover in Chicago most often.

  • What are some popular things to do or see while on a layover in Chicago?

    Most Chicago visitors opt to spend their time experiencing Magnificent Mile, Grant Park, and River North. Magnificent Mile, Grant Park, and River North can be accessed by traveling approximately 15.5 mi, 16.2 mi, and 15.0 mi, respectively from Chicago O'Hare Intl. Travelers in need of a car in Chicago can rent one for about $55 per day.

  • Where are the least popular layover locations for Appleton to Denver flights?

    Appleton to Denver flights that have layovers will least frequently stop in Minneapolis.

  • Can I find deals for flights from Appleton to Denver that include hotel bookings?

    Yes. In addition to deals on Appleton to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Appleton to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Appleton to Denver.

  • Can I find deals for business class flights from Appleton to Denver?

    Yes. Cheapflights offers flight deals from Appleton to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Appleton to Denver?

    Currently, October is the cheapest month in which you can book a flight from Appleton to Denver (average of $197). Flying from Appleton to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Appleton?

Book flights to Appleton if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Silverthorne
Brighton
Golden
Thornton
Greeley
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Limon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Appleton to Denver

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Denver flights
Minneapolis to Denver flights
Milwaukee to Denver flights
Madison to Denver flights
O'Hare Intl to Colorado Springs flights
O'Hare Intl to Aspen flights
Minneapolis to Colorado Springs flights
O'Hare Intl to Grand Junction flights
Minneapolis to Grand Junction flights
Green Bay to Denver flights
O'Hare Intl to Durango flights
O'Hare Intl to Montrose flights
Minneapolis to Montrose flights
Minneapolis to Durango flights
O'Hare Intl to Vail flights
Minneapolis to Vail flights
Milwaukee to Montrose flights
Milwaukee to Durango flights
Duluth to Denver flights
Madison to Montrose flights
Madison to Grand Junction flights
Wausau to Denver flights
Eau Claire to Denver flights
Appleton to Colorado Springs flights
Milwaukee to Colorado Springs flights
Appleton to Aspen flights
Minneapolis to Aspen flights
Milwaukee to Gunnison flights
Green Bay to Colorado Springs flights
Madison to Durango flights
Madison to Colorado Springs flights
O'Hare Intl to Hayden flights
Milwaukee to Grand Junction flights
Dubuque to Denver flights
Escanaba to Denver flights
Green Bay to Grand Junction flights
Milwaukee to Vail flights
O'Hare Intl to Gunnison flights
Minneapolis to Hayden flights
La Crosse to Denver flights
Appleton to Grand Junction flights
Minneapolis to Gunnison flights
Appleton to Durango flights
Milwaukee to Hayden flights
La Crosse to Aspen flights
Minneapolis to Cortez flights
Milwaukee to Aspen flights
Green Bay to Aspen flights

Top 4 airlines flying from Appleton to Denver

Discover the top 4 airlines that operate flights from Appleton to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$88Average$172FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$148Average$291FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$298FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$250Average$418FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.