Cheap flights from Portland, Maine to Washington, D.C. from $124
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Washington, D.C. departing on 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Delta flights from Portland, Maine to Washington, D.C.
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Fly from
Fly to
Route
Depart
Return
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Tue 11/10
5:15 am-7:15 am
Nonstop2h 00m
Baltimore/Washington
Tue 11/10
1:20 pm-2:45 pm
Nonstop1h 25m
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Tue 11/10
12:45 pm-2:25 pm
Nonstop1h 40m
Baltimore/Washington
Wed 11/11
8:15 am-9:50 am
Nonstop1h 35m
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Sat 11/14
3:20 pm-5:05 pm
Nonstop1h 45m
Baltimore/Washington
Tue 11/17
8:15 am-9:50 am
Nonstop1h 35m
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Tue 11/10
4:03 pm-11:27 pm
2 stops7h 24m
Baltimore/Washington
Wed 11/11
6:00 am-11:58 am
1 stop5h 58m
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Sat 10/31
9:48 am-12:22 am
2 stops14h 34m
Baltimore/Washington
Tue 11/3
7:05 pm-9:08 am
1 stop14h 03m
PortlandWashington, D.C.
PWM Portland - IAD Washington, D.C. Dulles Intl
PWMIAD
Portland
Thu 11/5
5:50 am-11:44 am
1 stop5h 54m
Washington, D.C. Dulles Intl
Thu 11/12
5:50 pm-11:21 pm
1 stop5h 31m
PortlandWashington, D.C.
PWM Portland - DCA Washington, D.C. Reagan-National
PWMDCA
Portland
Sat 10/31
4:54 pm-9:59 pm
1 stop5h 05m
Washington, D.C. Reagan-National
Mon 11/2
8:12 am-10:01 am
Nonstop1h 49m
PortlandWashington, D.C.
PWM Portland - DCA Washington, D.C. Reagan-National
PWMDCA
Portland
Sat 12/12
3:18 pm-5:20 pm
Nonstop2h 02m
Washington, D.C. Reagan-National
Fri 1/8
2:59 pm-9:29 pm
1 stop6h 30m
PortlandWashington, D.C.
PWM Portland - IAD Washington, D.C. Dulles Intl
PWMIAD
Portland
Fri 11/6
5:50 am-11:44 am
1 stop5h 54m
Washington, D.C. Dulles Intl
Mon 11/9
12:40 pm-2:27 pm
Nonstop1h 47m
PortlandWashington, D.C.
PWM Portland - IAD Washington, D.C. Dulles Intl
PWMIAD
Portland
Wed 12/2
12:28 pm-9:46 pm
2 stops33h 18m
Washington, D.C. Dulles Intl
Sun 12/6
10:24 pm-9:08 am
1 stop10h 44m
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Portland, Maine to Washington, D.C.
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Portland, Maine and Washington, D.C.?
Prices are currently typical for flights on this route.
Typical prices usually range from $217 to $337.The lowest price recently found on this route was $258.
What is the cheapest month to fly to Washington, D.C.?
The month of October is, on average, the cheapest month to fly to Washington, D.C. from Portland, Maine, with most prices found around $308. If you’re not able to fly to Washington, D.C. in October, then December is your next best option. Flight prices from Portland, Maine to Washington, D.C. during December average around $317.
What is the cheapest day to depart on your flight to Washington, D.C.?
On average, the least expensive day to fly to Washington, D.C. from Portland, Maine is on a Thursday. momondo users have found tickets for Thursday departures for as low as $381. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Portland, Maine to Washington, D.C. for around $547.
What is the cheapest time of day to depart on your flight to Washington, D.C.?
In the afternoon is the cheapest time of day to fly from Portland, Maine to Washington, D.C. when you can find flight prices for as low as $372. Flying to Washington, D.C. in the afternoon 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 $563. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Portland to Washington, D.C. flight route?
Fly from Portland to Baltimore/Washington for the best Portland - Washington, D.C. flight prices
How far in advance should I book a flight from Portland, Maine to Washington, D.C.?
You are more likely to see cheaper flights to Washington, D.C. from Portland, Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $358 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Portland, Maine for as low as $202 on momondo.
What cabin class options are available on Portland, Maine to Washington, D.C. flights?
There are 4 cabin classes available to choose from on Portland, Maine to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Portland to Washington, D.C.?
Delta, Southwest, and United Airlines are the most popular carriers operating from Portland to Washington, D.C.
What airlines fly to Washington, D.C.?
American Airlines, JetBlue and United Airlines are the top three most popular airlines that fly to Washington, D.C. from Portland, Maine according to our data. American Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 6 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.
How many flights depart from Portland, Maine to Washington, D.C. on average per day?
As of October 2026, 10 flights take off from Portland, Maine and land in Washington, D.C. each day. The most common flight departure time for this route is 9:00AM, with 42% of daily flights taking off at noon.
How many flights depart from Portland, Maine to Washington, D.C. on average per week?
The number of flights available between Portland, Maine and Washington, D.C. is 74 per week as of October 2026. The most frequent departure day is Tue, with 19% of weekly flights leaving on this day.
When to book flights from Portland, Maine to Washington, D.C.
Cheap Portland, Maine to Washington, D.C. (PWM to WAS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Washington, D.C.
Frequently asked questions about flying from Portland, Maine to Washington, D.C.
How far is Portland to Washington, D.C. by plane?
The distance between Portland and Washington, D.C. is about 480.9 mi. Typically, this will take 1h 35m by plane in normal conditions.
When did momondo last update prices for flights from Portland Airport to Washington, D.C.?
Prices for flights from Portland Airport to Washington, D.C. refresh daily.
How many operators does momondo search for flights from Portland Airport to Washington, D.C.?
The number of operators available for flights from Portland Airport to Washington, D.C. is 3 as of October 2026.
How old do you have to be to fly from Portland Airport to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Portland, Maine to Washington, D.C.?
momondo data reveals that the most frequently booked plane model on the route from Portland, Maine to Washington, D.C. is Embraer 175 (Enhanced Winglets), representing 22.11% of all bookings. The subsequent popular models are Airbus A319 at 15.40%, Canadair (Bombardier) Regional Jet 700 at 12.65%, and Boeing 737 MAX 8 at 11.25%.
What is the most popular airline from Portland, Maine to Washington, D.C.?
Based on momondo bookings for flights between Portland, Maine and Washington, D.C., the leading airline is American Airlines, making up 61% of the total bookings. Other popular airlines include United Airlines with 33% and Southwest with 6%.
Best airlines flying from Portland, Maine to Washington, D.C.
Compare and see reviews for airlines that fly from Portland, Maine to Washington, D.C. with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $214 | Free Cancellation | Rating 7.4 10,319 reviews | |||
| PriceFrom $217 | Free Cancellation | Rating 7.0 12,145 reviews | |||
| PriceFrom $277 | Free Cancellation | Rating 7.9 4,221 reviews |
United Airlines Flights From Portland, Maine to Washington, D.C.
United Airlines operates around 28 flights from Portland, Maine to Washington, D.C. every week. The average price of these flights found in the last 72 hours has been $464, but momondo users have found United Airlines deals from Portland, Maine to Washington, D.C. from as low as $214 round-trip. United Airlines has been scored 7.4/10 in 10,324 reviews.
American Airlines Flights From Portland, Maine to Washington, D.C.
American Airlines is also a popular choice for this route. American Airlines flight deals for Portland, Maine to Washington, D.C. start from as low as $217 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $365. American Airlines operates 18 flights to Washington, D.C. from Portland, Maine in an average week. Users have rated it 7.0/10 across 12,147 reviews.
Traveling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Portland to Washington, D.C.?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Portland.
Can I find flights from Portland to Washington, D.C. with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Washington, D.C. from Portland with this policy.
How can momondo help me find flights from Portland to Washington, D.C.?
Once all potential Portland to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Portland to Washington, D.C. right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Portland to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.