Cheap flights from Maine to Colorado from $89

The month of February is, on average, the cheapest month to fly to Colorado from Maine, with most prices found around $374. The month of April is another great option to travel to Colorado, with average flight prices from Maine averaging around $392.

The cheapest day to depart from Maine to Colorado is on a Friday when prices can be found for as low as $495. On the other hand, Sunday is the most expensive day to depart from Maine because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $736.

The cheapest time of day to fly to Colorado is in the afternoon when flights can be purchased for as low as $555. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $762 per ticket.

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

You are more likely to see cheaper flights to Colorado from Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $445 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Maine for as low as $376 on momondo.

There are 4 cabin classes available to choose from on Maine 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 American Airlines are the most popular carriers operating from Maine to Colorado

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Colorado from Maine according to our data. United Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 4 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 Maine and Colorado is 6 per day as of March 2026. The most frequent departure time is 6:00AM, with 100% of daily flights leaving at noon.

The number of flights available between Maine and Colorado is 47 per week as of March 2026. The most frequent departure day is Fri, with 34% of weekly flights leaving on this day.