Cheap Flights from Appleton (ATW) to Denver International (DEN)

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      Compare Appleton to Denver International flight deals

      Find the cheapest month or even day of the year to fly to Denver International

      Book the best Denver International fare with no extra fees

      Flight deals from Appleton to Denver International

      Looking for a cheap last-minute deal or the best round-trip flight from Appleton to Denver International? Find the lowest prices on one-way and round-trip tickets right here.

      Find the cheapest month to fly from Appleton to Denver International

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Appleton to Denver International flights are currently cheapest in August.

      Direct flights from Appleton to Denver International

      Appleton to Denver International: Alternative routes

      Compare routes from Appleton to Denver below. You may find an airport to fly into that's cheaper, faster, or easier than Denver International.

      Appleton to Denver: Flight information

      The things to know before you go.
      Cheapest flight found$49
      Cheapest month to flyAugust
      Average flight time2 hrs, 47 mins
      Most popular airlineUnited
      Average flights per week19

      Finding cheap flights from Appleton to Denver International: Frequently asked questions

      The best price we found for a round-trip flight from Appleton to Denver International is $112. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      2 hours and 47 minutes is the average flight time from Appleton to Denver International.
      United, SkyWest Airlines and Allegiant Air fly direct from Appleton to Denver International.
      There are 19 flights per week flying from Appleton to Denver International, as of April 2025.
      The cheapest month to fly from Appleton to Denver International is usually April 2025.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Appleton Airport to Denver International Airport on Thursday, May 29, 2025.
      Yes – the average flight time is 2 hours and 47 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Denver International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
      We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Denver is around 40 days in advance, so don’t leave your flight to the last minute.
      Currently, Allegiant Air offers the cheapest flight tickets to Denver International.

      Traveling from Appleton International Airport (ATW) to Denver International Airport (DEN): what you need to know

      • Around 2 hours 40 minutes is how long you'll be traveling on a direct flight from Appleton International Airport to Denver International Airport.

      • Denver is one hour behind Appleton and follows the UTC-6 timezone.

      • Choose from 11 weekly Appleton International Airport to Denver International Airport flights. The 07:30 departure with Allegiant Air is the earliest available. Allegiant Air operates the last service of the day at 17:19.

      • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to catch your ATW to DEN flight.

      • During popular months like July, it's best to get to the airport well in advance. Plan to arrive two hours before a domestic departure and four hours ahead of international flights when you fly during a peak period in general.

      • Traveling to Denver (and then seeing more of United States!) is a snap with Allegiant Air. This popular carrier has direct flights from Appleton International Airport to Denver International Airport.

      • The airline that passengers book most often on this route is Allegiant Air.

      • The most punctual carrier operating ATW to DEN flights is United Airlines. Its services land without delay 67.21% of the time.

      • If you want to explore another city along the way, just deselect 'Direct flights only' when searching for your ticket from Appleton International Airport to Denver International Airport. These are the top stopovers between ATW and DEN:

        • Minneapolis-St. Paul International Airport

        • O'Hare International Airport

        • Detroit Metropolitan Wayne County Airport

      How to find the cheapest flights from Appleton International Airport (ATW) to Denver International Airport (DEN)

      • The lowest price we've found for a one-way Appleton International Airport to Denver International Airport flight is $49. A return ticket right now is $112. Depending on the availability and when you book, these fares may change.

      • Score cheap tickets from ATW to DEN by booking six months ahead. According to our research, that's the sweet spot for finding the biggest deals.

      • Organize your trip for May. That's the cheapest month for flights from Appleton International Airport to Denver International Airport. If your travel dates are flexible, try out the 'Whole month' tool to see the cheapest price across each month.

      • You don't need to check every day to see if fares have gone down when you create a Price Alert. We'll send you an update as soon as there's a change in price on cheap flights from ATW to DEN.

      • Pick your ideal arrival and departure times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Appleton International Airport to Denver International Airport.

      Handy information about Appleton International Airport (ATW)

      • The address for ATW is West 6390, Challenger Drive, Suite 201.

      • When it comes to Appleton International Airport's on-time performance, 69.93% of flights complete their journey on time.

      • Central Appleton to Appleton International Airport is around 6 miles. Depending on traffic, it'll take you about 15 minutes to get there if you're catching a cab, ride-sharing or driving.

      • Get your journey off to a hassle-free start by staying near ATW. Whether you're taking an early flight from Appleton International Airport to Denver International Airport or want to avoid feeling rushed, these stays are the answer:

      Arriving at Denver International Airport (DEN)

      • Hop off your Appleton International Airport to Denver International Airport flight and be relaxing in your hotel bed shortly after. If you need a convenient option that's not too far from DEN, check out Baymont by Wyndham Denver International Airport.

      • Grab a Denver International Airport rental car and explore Denver and beyond with your own wheels. Routes Car Rentals, Dollar and Budget are top providers you can book with here.

      • Booking your ride from Denver International Airport about one week in advance gives you the best chance of locking in a great deal.

      Getting from Denver International Airport (DEN) to central Denver

      • The address for DEN is 8500 Pena Boulevard.

      • From Denver International Airport, Denver is approximately 25 miles away. It takes around 35 minutes to reach the center by car.

      • Traveling on public transport will take you roughly 1 hour 30 minutes.

      When to fly to Denver International Airport (DEN)

      • The quietest month for a flight from Appleton International Airport to Denver International Airport is April, while July is the busiest. Choose the ideal time to visit Denver based on whether you prefer a laid-back vibe or a more bustling atmosphere.

      • The warmest month in Denver is July, with the temperature ranging between 57ºF and 90ºF. Book your flights from Appleton International Airport to Denver International Airport in this month if this is the type of weather you like.

      • If you'd rather travel in cooler conditions, look for a cheap ticket from ATW to DEN in January. Average temperatures are between 16ºF and 45ºF then.

      Explore more of United States

      • You've seen Denver, now it's time to explore other corners of United States. Travel about 65 miles south to Colorado Springs to check off its popular sights. From US Northern Command (USNORTHCOM) / North American Aerospace Defense Command (NORAD) Headquarters to Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA), you'll have a full itinerary ahead.

      • Aurora is another essential stop in United States and is around 8 miles east of Denver. No trip is complete without visiting Magellan's Travel Solutions and Gear, The Fairways at Lowry and Retired Enlisted Association Inc.

      Prices shown on this page are estimated lowest prices only. Found in the last 45 days.