Cheap flights from District of Columbia to Colorado from $145

The month of January is, on average, the cheapest month to fly to Colorado from District of Columbia, with most prices found around $199. The month of September is another great option to travel to Colorado, with average flight prices from District of Columbia averaging around $226.

The cheapest day to depart from District of Columbia to Colorado is on a Wednesday when prices can be found for as low as $436. On the other hand, Sunday is the most expensive day to depart from District of Columbia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $530.

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $401. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $481 per ticket.

Fly from Washington, D.C. Reagan-National to Denver Intl for the best District of Columbia - Colorado flight prices

You are more likely to see cheaper flights to Colorado from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $370 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from District of Columbia for as low as $295 on momondo.

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

Southwest, United Airlines, and Delta are the most popular carriers operating from District of Columbia to Colorado

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Colorado from District of Columbia according to our data. Frontier is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 6 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

As of June 2026, there are 31 flights per day flying from District of Columbia to Colorado. The most common time of day flights depart is 5:00PM, with 49% of flights taking off in the afternoon.

As of June 2026, 217 flights take off from District of Columbia and land in Colorado each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.