Cheap flights from Idaho to Colorado from $84

The month of February is, on average, the cheapest month to fly to Colorado from Idaho, with most prices found around $260. The month of January is another great option to travel to Colorado, with average flight prices from Idaho averaging around $262.

The cheapest day to depart from Idaho to Colorado is on a Thursday when prices can be found for as low as $414. On the other hand, Sunday is the most expensive day to depart from Idaho because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $573.

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $242. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $494 per ticket.

Fly from Boise Air Term. Gowen Fld to Denver Intl for the best Idaho - Colorado flight prices

You are more likely to see cheaper flights to Colorado from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $293 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Idaho for as low as $235 on momondo.

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

Southwest, Delta, and Alaska Airlines are the most popular carriers operating from Idaho to Colorado

United Airlines, Frontier and Southwest are the top three most popular airlines that fly to Colorado from Idaho according to our data. United Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 5 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

The number of flights available between Idaho and Colorado is 17 per day as of September 2026. The most frequent departure time is 2:00PM, with 46% of daily flights leaving in the afternoon.

124 flights are operational weekly from Idaho to Colorado as of September 2026. The most popular departure day for this route is Thu, with 20% of flights per week taking off on this day.