Cheap flights from District of Columbia to Portland from $165

The cheapest month to fly to Portland, Maine from District of Columbia is in January. Flight prices, which tend to average around $286, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $317.

On average, the least expensive day to fly to Portland, Maine from District of Columbia is on a Saturday. momondo users have found tickets for Saturday departures for as low as $331. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday 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 $402.

In the evening is the cheapest time of day to fly from District of Columbia to Portland, Maine when you can find flight prices for as low as $321. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $408. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Washington, D.C. Dulles Intl to Portland for the best District of Columbia - Portland flight prices

You are more likely to see cheaper flights to Portland, Maine from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $371 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from District of Columbia for as low as $270 on momondo.

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

United Airlines and Delta are the most popular carriers operating from District of Columbia to Portland

JetBlue, American Airlines and United Airlines are the top three most popular airlines that fly to Portland, Maine from District of Columbia according to our data. JetBlue is the first choice among our users, with 27% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 6 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

As of July 2026, there are 9 flights per day flying from District of Columbia to Portland, Maine. The most common time of day flights depart is 5:00PM, with 50% of flights taking off in the afternoon.

As of July 2026, there are 67 flights per week flying from District of Columbia to Portland, Maine. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.