Cheap flights from Colorado to Appleton from $71

The month of August is, on average, the cheapest month to fly to Appleton from Colorado, with most prices found around $56. If you aren’t able to travel to Appleton during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $61.

The cheapest day to depart from Colorado to Appleton is on a Sunday when prices can be found for as low as $237. The most expensive day to fly to Appleton is Tuesday, with ticket prices averaging around $349.

Our data shows that the cheapest Colorado to Appleton flights are usually those with departure times in the evening. Our users have found flights to Appleton in the evening for as low as $196. In the afternoon is when there is more demand to fly to Appleton, so prices are often more expensive at around $320 per ticket.

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

You are more likely to see cheaper flights to Appleton from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Appleton for around $309 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Appleton from Colorado for as low as $238 on momondo.

There is only 1 cabin class available to choose from on Colorado to Appleton flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Allegiant Air, American Airlines, and United Airlines are the most popular carriers operating from Colorado to Appleton Intl

United Airlines, Frontier and Southwest are the top three most popular airlines that fly to Appleton from Colorado according to our data. United Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Appleton. Keep in mind that there are 6 different airlines that fly to Appleton on a routine basis, so you have a few additional options to choose from.

As of June 2026, 6 flights take off from Colorado and land in Appleton each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

The flight from Colorado to Appleton depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Denver (a popular airport in Colorado) to Milwaukee (the most popular airport in Appleton), then the flight time is 2h 15m on average. If you fly from Aspen (another popular airport in Colorado) to Milwaukee, then the average flight time is 4h 47m.