Cheap flights from Illinois to Colorado

Airlines like Southwest, United Airlines, and Delta fly from Illinois to Colorado in about 2h 34m. The time it takes to get you to your destination can typically vary by up to 4h 28m. The distance between Illinois and Colorado is about 767 mi. Both multi-stop and nonstop flights can be found to your destination and back.

One-way options have recently been found by users for as low as $43 on Frontier. Other airlines that offer cheap prices include American Airlines from $71 and Allegiant Air from $74 one-way.

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

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

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Colorado (average of $48). Flying from Illinois to Colorado in February is currently the most expensive (average of $113). 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.