Cheap flights from Oregon to Colorado from $108

The month of January is, on average, the cheapest month to fly to Colorado from Oregon, with most prices found around $265. The month of April is another great option to travel to Colorado, with average flight prices from Oregon averaging around $269.

The cheapest day to depart from Oregon to Colorado is on a Thursday when prices can be found for as low as $378. On the other hand, Monday is the most expensive day to depart from Oregon because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $491.

The cheapest time of day to fly to Colorado is in the afternoon when flights can be purchased for as low as $342. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $424 per ticket.

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

You are more likely to see cheaper flights to Colorado from Oregon when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $274 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Oregon for as low as $236 on momondo.

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

Alaska Airlines, Southwest, and United Airlines are the most popular carriers operating from Oregon to Colorado

United Airlines, Frontier and Alaska Airlines are the top three most popular airlines that fly to Colorado from Oregon according to our data. United Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 7 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 Oregon and Colorado is 13 per day as of October 2026. The most frequent departure time is 12:00PM, with 44% of daily flights leaving in the afternoon.

The number of flights available between Oregon and Colorado is 91 per week as of October 2026. The most frequent departure day is Mon, with 29% of weekly flights leaving on this day.