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Cheap flights from Appleton to Denver from $142

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Appleton to Denver departing on 10/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Appleton to Denver

Cheap round-trip flights

Allegiant Air Logo
4:55 pm - 6:32 pmATW-DEN
2h 37mnonstop
Allegiant Air Logo
5:52 pm - 9:07 pmDEN-ATW
2h 15mnonstop
$167Allegiant Air
Find Deal
Sun, Oct 12 - Thu, Oct 23
Allegiant Air Logo
4:55 pm - 6:32 pmATW-DEN
2h 37mnonstop
Allegiant Air Logo
5:52 pm - 9:07 pmDEN-ATW
2h 15mnonstop
$183Allegiant Air
Find Deal
Sun, Oct 12 - Thu, Oct 23
United Airlines Logo
8:43 am - 10:35 amATW-DEN
2h 52mnonstop
United Airlines Logo
5:20 pm - 8:56 pmDEN-ATW
2h 36mnonstop
$209United Airlines
Find Deal
Sat, Oct 18 - Fri, Oct 24
Multiple Airlines Logo
9:00 am - 8:12 amATW-DEN
24h 12m1 stop
Multiple Airlines Logo
5:52 pm - 9:07 pmDEN-ATW
2h 15mnonstop
$218Multiple Airlines
Find Deal
Mon, Oct 20 - Thu, Oct 23
United Airlines Logo
12:37 pm - 4:35 pmATW-DEN
4h 58m1 stop
United Airlines Logo
5:20 pm - 8:56 pmDEN-ATW
2h 36mnonstop
$219United Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 14
Delta Logo
5:35 pm - 10:06 pmATW-DEN
5h 31m1 stop
Delta Logo
12:50 pm - 9:35 pmDEN-ATW
7h 45m1 stop
$229Delta
Find Deal
Fri, Oct 24 - Tue, Oct 28
Multiple Airlines Logo
3:25 pm - 5:02 pmATW-DEN
2h 37mnonstop
Multiple Airlines Logo
12:16 am - 2:25 pmDEN-ATW
13h 09m2 stops
$232Multiple Airlines
Find Deal
Sun, Oct 26 - Thu, Oct 30
American Airlines Logo
9:39 am - 4:49 pmATW-DEN
8h 10m1 stop
American Airlines Logo
6:21 am - 7:13 pmDEN-ATW
11h 52m2 stops
$234American Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 16
American Airlines Logo
6:00 am - 1:57 pmATW-DEN
8h 57m2 stops
American Airlines Logo
2:48 pm - 9:39 pmDEN-ATW
5h 51m1 stop
$244American Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
Delta Logo
5:41 am - 1:52 pmATW-DEN
9h 11m1 stop
Delta Logo
4:16 pm - 9:15 pmDEN-ATW
3h 59m1 stop
$269Delta
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Tue, Oct 21 - Sat, Oct 25

Allegiant Air flights from Appleton to Denver

Our best Allegiant Air deals on Appleton to Denver flight tickets
Allegiant Air
Oct 12
ATW4:55 pmAppleton Intl
2h 37m
DEN6:32 pmDenver Intl
Oct 23
DEN5:52 pmDenver Intl
2h 15m
ATW9:07 pmAppleton Intl
$167
Find similar
Allegiant Air
Oct 12
ATW4:55 pmAppleton Intl
2h 37m
DEN6:32 pmDenver Intl
Oct 23
DEN5:52 pmDenver Intl
2h 15m
ATW9:07 pmAppleton Intl
$183
Find similar
Allegiant Air
Oct 12
ATW4:55 pmAppleton Intl
2h 37m
DEN6:32 pmDenver Intl
Oct 16
DEN7:22 pmDenver Intl
2h 15m
ATW10:37 pmAppleton Intl
$190
Find similar

United Airlines flights from Appleton to Denver

Our best United Airlines deals on Appleton to Denver flight tickets
United Airlines
Oct 18
ATW8:43 amAppleton Intl
2h 52m
DEN10:35 amDenver Intl
Oct 24
DEN5:20 pmDenver Intl
2h 36m
ATW8:56 pmAppleton Intl
$209
Find similar
United Airlines
Oct 7
ATW12:37 pmAppleton Intl
4h 58m
1 stop
DEN4:35 pmDenver Intl
Oct 14
DEN5:20 pmDenver Intl
2h 36m
ATW8:56 pmAppleton Intl
$219
Find similar
United Airlines
Oct 4
ATW5:25 pmAppleton Intl
5h 35m
1 stop
DEN10:00 pmDenver Intl
Oct 7
DEN2:45 pmDenver Intl
5h 48m
1 stop
ATW9:33 pmAppleton Intl
$239
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Appleton to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sun 10/12

4:55 pm-6:32 pm

Nonstop2h 37m

Denver Intl

Thu 10/23

5:52 pm-9:07 pm

Nonstop2h 15m

$167

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sun 10/12

4:55 pm-6:32 pm

Nonstop2h 37m

Denver Intl

Thu 10/23

5:52 pm-9:07 pm

Nonstop2h 15m

$183

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sat 10/18

8:43 am-10:35 am

Nonstop2h 52m

Denver Intl

Fri 10/24

5:20 pm-8:56 pm

Nonstop2h 36m

$209

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Mon 10/20

9:00 am-8:12 am

1 stop24h 12m

Denver Intl

Thu 10/23

5:52 pm-9:07 pm

Nonstop2h 15m

$218

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Tue 10/7

12:37 pm-4:35 pm

1 stop4h 58m

Denver Intl

Tue 10/14

5:20 pm-8:56 pm

Nonstop2h 36m

$219

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Fri 10/24

5:35 pm-10:06 pm

1 stop5h 31m

Denver Intl

Tue 10/28

12:50 pm-9:35 pm

1 stop7h 45m

$229

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sun 10/26

3:25 pm-5:02 pm

Nonstop2h 37m

Denver Intl

Thu 10/30

12:16 am-2:25 pm

2 stops13h 09m

$232

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sat 12/13

9:39 am-4:49 pm

1 stop8h 10m

Denver Intl

Tue 12/16

6:21 am-7:13 pm

2 stops11h 52m

$234

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sat 10/4

6:00 am-1:57 pm

2 stops8h 57m

Denver Intl

Tue 10/7

2:48 pm-9:39 pm

1 stop5h 51m

$244

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Tue 10/21

5:41 am-1:52 pm

1 stop9h 11m

Denver Intl

Sat 10/25

4:16 pm-9:15 pm

1 stop3h 59m

$269

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from Appleton to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Appleton and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Appleton is in June. Flight prices, which tend to average around $221, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in June, then you should wait until July to fly from Appleton, when ticket prices are also cheap, with an average price of $223.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Sunday when prices can be found for as low as $206. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Monday, with ticket prices averaging around $604.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $99. Flights in the morning are often more expensive with an average ticket price of $478.

What is the cheapest Appleton Intl to Denver Intl flight route?

Fly from Appleton Intl to Denver Intl for the best Appleton Intl - Denver Intl flight prices

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

You are more likely to see cheaper flights to Denver from Appleton when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $323 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Appleton for as low as $189 on momondo.

What cabin class options are available on Appleton Intl to Denver Intl flights?

There are 4 cabin classes available to choose from on Appleton Intl to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Appleton to Denver flight prices changed over time?

As of September 2025, prices for Appleton to Denver flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from Appleton to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Appleton to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Appleton to Denver (ATW to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Appleton to Denver

Best Price Found

$192

Fastest flight time

2h 34m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Appleton in the past 72 hours is $192. The best round-trip flight deal from Appleton to Denver found on momondo in the last 72 hours is $222.
The fastest flight from Appleton to Denver takes 2h 34m
Direct flights go from Appleton to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)
Search flight deals

  • How far is Appleton Intl to Denver Intl by plane?

    The straight-line distance from Appleton Intl to Denver Intl is 903.7 mi. By plane, this route typically takes 2h 34m.

  • When did momondo last update prices for flights from Appleton Intl Airport to Denver Intl Airport?

    Prices for flights from Appleton Intl Airport to Denver Intl Airport are updated daily.

  • How many operators does momondo search for flights from Appleton Intl Airport to Denver Intl Airport?

  • How old do you have to be to fly from Appleton Intl Airport to Denver Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Appleton Intl Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Appleton to Denver?

  • What is the most popular airline from Appleton to Denver?

Best airlines flying from Appleton to Denver

Compare and see reviews for airlines that fly from Appleton to Denver with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $98Free CancellationRating
7.2
699 reviews
Search Allegiant Air flights
DeltaPriceFrom $228Free CancellationRating
7.9
7,957 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights

  • United Airlines Flights From Appleton to Denver

    United Airlines is one of the most popular airlines flying from Appleton to Denver, operating 7 flights/week on average for this route. A good United Airlines flight deal for Appleton to Denver starts from $249 round-trip, up to an average price of $424. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Estes Park
Breckenridge
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Boulder
Manitou Springs
Longmont
Lakewood
Greeley
Thornton
Westminster
Winter Park
Copper Mountain
Frisco
Grand Lake
Silverthorne
Central City

Why use momondo?

Why should I use momondo to find a flight deal from Appleton to Denver?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Appleton to Denver for you.

Can I find flights from Appleton to Denver with flexible booking policies on momondo?

Flights from Appleton to Denver with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Appleton to Denver?

momondo helps you find the best flight between Appleton and Denver by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Appleton to Denver right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Appleton to Denver flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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