Cheap flights from Colorado to Peoria from $90

The cheapest month to fly to Peoria, Illinois from Colorado is in November. Flight prices, which tend to average around $209, are often lower during this time because this is during the off-season. If you’re not able to fly to Peoria, Illinois in November, then December is your next best option. Flight prices from Colorado to Peoria, Illinois during December average around $284.

Our data shows that Friday is the least expensive day to fly to Peoria, Illinois. Tickets to fly out on this day can be as low as $298. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $413. These prices are subject to change though, so be sure to set up a Price Alert for flights to Peoria, Illinois.

Our most recent data shows that the best time of day to fly to Peoria, Illinois is at noon. Flights from Colorado to Peoria, Illinois during this time can be as low as $171. Try not to purchase tickets in the afternoon because they tend to be around $310. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Peoria, Illinois from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Peoria, Illinois for around $325 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Peoria, Illinois from Colorado for as low as $179 on momondo.

There are 2 cabin classes available to choose from on Colorado to Peoria, Illinois 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 Greater Peoria

United Airlines, American Airlines and Allegiant Air are the top three most popular airlines that fly to Peoria, Illinois from Colorado according to our data. United Airlines is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Peoria, Illinois. Keep in mind that there are 3 different airlines that fly to Peoria, Illinois on a routine basis, so you have a few additional options to choose from.

As of August 2026, there are 1 flights per week flying from Colorado to Peoria, Illinois. The most common day of the week flights depart is Mon, with 100% of flights taking off on this day.

Flight times vary depending on what airport in Colorado you fly out of and what airport in Peoria, Illinois you fly into. For example, flying from Denver to Moline takes 2h 18m on average. On the other hand, flying from Colorado Springs to Moline takes 4h 50m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.