Cheap flights from Washington, D.C. to Portland from $108

The cheapest month to fly to Portland, Maine from Washington, D.C. is in April. Flight prices, which tend to average around $285, 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 April, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $304.

On average, the least expensive day to fly to Portland, Maine from Washington, D.C. is on a Saturday. momondo users have found tickets for Saturday departures for as low as $301. 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 Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $380.

In the evening is the cheapest time of day to fly from Washington, D.C. to Portland, Maine when you can find flight prices for as low as $299. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $387. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Washington, D.C. Reagan-National to Portland for the best Washington, D.C. - Portland flight prices

You are more likely to see cheaper flights to Portland, Maine from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $353 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Washington, D.C. for as low as $266 on momondo.

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

You could potentially save up to 24% on your flight if you consider stops on a Washington, D.C. to Portland, Maine flight.

As of March 2026, prices for Washington, D.C. to Portland, Maine flights are approximately 8% cheaper when compared to flights at the same time last year.

Delta, United Airlines, and Southwest are the most popular carriers operating from Washington, D.C. to Portland

American Airlines, United Airlines and JetBlue are the top three most popular airlines that fly to Portland, Maine from Washington, D.C. according to our data. American Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 7 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

Newark (EWR) was the most common stop: 71% of momondo users choosing 1-stop flights on this route connected there.

Flights via New York (JFK) offer the lowest average round-trip price of $208.

Flights connecting via Newark (EWR) have the shortest average one-way travel time: 4h 13m.

New York (JFK) has the shortest average layover time for this route: 0h 45m.

As of March 2026, 7 flights take off from Washington, D.C. and land in Portland, Maine each day. The most common flight departure time for this route is 5:00PM, with 66% of daily flights taking off in the afternoon.

As of March 2026, 49 flights take off from Washington, D.C. and land in Portland, Maine each week. The most common flight departure day for this route is Thu, with 22% of weekly flights taking off on this day.