Cheap flights from South Portland to Washington, D.C.

Flight deals from South Portland to Washington, D.C.

Below you can see the best deals on flights South Portland — Washington, D.C. for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 19 September, from $111.

Top 10 cheap flights from South Portland to Washington, D.C.

South Portland — Washington, D.C.

13:59—18:31

9 Sep 2026

4 h 32 m

1 stop

South Portland — Washington, D.C.

06:02—10:06

12 Sep 2026

4 h 4 m

1 stop

South Portland — Washington, D.C.

06:02—11:45

12 Sep 2026

5 h 43 m

1 stop

South Portland — Washington, D.C.

06:30—10:17

10 Sep 2026

3 h 47 m

1 stop

South Portland — Washington, D.C.

06:02—10:06

10 Sep 2026

4 h 4 m

1 stop

South Portland — Washington, D.C.

06:00—11:30

10 Sep 2026

5 h 30 m

1 stop

South Portland — Washington, D.C.

06:00—10:09

5 Sep 2026

4 h 9 m

1 stop

South Portland — Washington, D.C.

16:59—21:02

5 Sep 2026

4 h 3 m

1 stop

South Portland — Washington, D.C.

06:00—11:49

5 Sep 2026

5 h 49 m

1 stop

South Portland — Washington, D.C.

14:14—19:34

5 Sep 2026

5 h 20 m

1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the South Portland — Washington, D.C. flight

Looking for cheap flights from South Portland to Washington, D.C.? Compare fares from different airlines, check the flight schedule and travel time — and book your South Portland — Washington, D.C. ticket online at the best price.

The route has direct flights — around 87 flights per week, flights are operated by United Airlines, American Airlines, a nonstop flight takes about 1 h 45 min, the distance between the cities is around 775 km.

Planning your trip? You may find our Washington, D.C. travel guide, how to get from the airport into town and Washington, D.C. weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

from $109Min. price

OctoberCheapest

AugustPeak season

YesDirect flights

775 kmDistance

1 h 45 minTravel time

2Airlines

87 / wkFlights

Flight schedule from South Portland to Washington, D.C.

The table shows direct flights from South Portland to Washington, D.C. on the selected date. The flight takes approximately 1 h 45 min. Regular flights are operated by United Airlines and American Airlines. Departures from Portland International Jetport airports, arrivals at Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport and Ronald Reagan National Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today

Any time

Last update: 16 Aug 2026

Airline

Flight

Departure

Arrival

Duration

Days

Status

Below is a calendar of the lowest flight ticket prices for South Portland — Washington, D.C. by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $109 in October, and the most expensive are around $250 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

Prices by month

Average one-way fares from South Portland to Washington, D.C. by month. Tickets are usually cheapest in January (around $159) and priciest in July (about $238) — use the table and chart below to pick the best time to fly.

Month	Average price	Level	Month	Average price	Level	Month	Average price	Level
Jan	$159	low	May	$215	high	Sep	$170	low
Feb	$159	low	Jun	$226	high	Oct	$192	medium
Mar	$164	low	Jul	$238	high	Nov	$164	low
Apr	$209	high	Aug	$232	high	Dec	$215	high

Some values are estimated based on seasonality.

When to fly

Weather in Washington, D.C.: it is warmest in July (up to 32 °C on average) and coolest in January (around 7 °C). The driest month is October.

Tickets are usually cheapest in October and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Washington, D.C.

Dry and wet days · Washington, D.C.

Wind speed and direction · Washington, D.C.

We'll let you know if you need a visa

Enter your destination or

Your nationality

Destination

How to get the best deal on a South Portland — Washington, D.C. ticket

Book ahead: fares for South Portland — Washington, D.C. are usually lower 3–8 weeks before departure than at the last minute.
Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
The cheapest month to fly to Washington, D.C. is usually October — plan your trip around it if your dates are flexible.
Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Flights on the South Portland — Washington, D.C. route are operated by 2 airlines; United Airlines runs the most flights (around 63% of all flights). Compare carriers, flight shares and schedules below.

United AirlinesUA
18x/week
WebsiteFleet: 956165M pax/year
- Direct flight PWM → IAD18x/week
  Duration
  1h 50m
  Days
  MTWTFSS
63.2%Open →
American AirlinesAA
11x/week
WebsiteFleet: 965211M pax/year
- Direct flight PWM → DCA11x/week
  Duration
  1h 54m
  Days
  MTWTFSS
36.8%Open →

Cities and airports on the South Portland — Washington, D.C. route

Flights South Portland — Washington, D.C. depart from Portland International Jetport and arrive at Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport and Ronald Reagan National Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

South Portland

PWM

United States

About the city How to get there Weather All about the country United States

Arrival

Washington, D.C.

WAS

United States

About the city How to get there Weather All about the country United States

Departure airports

Portland International JetportPWM
About the airport

Arrival airports

Washington Dulles International AirportIAD
About the airport
Baltimore/Washington International Thurgood Marshall AirportBWI
About the airport
Ronald Reagan National AirportDCA
About the airport

Interesting

The World’s Largest Cities

If you prefer non-stop action to quiet solitude somewhere by the sea or in the mountains—this article is for you. We’ve already told you about the oldest cities in the world, and now it’s time to delv…

Interesting

Graffiti: Where to go for street art

Long gone are the days when graffiti was considered solely vandalism. Today, street art is a powerful and vibrant direction of contemporary art, transforming gray city walls into open-air galleries. A…

Useful information

Free Public Transport Abroad

How to get around abroad is always a tricky question. Some simply buy a day pass and spare no expense, while others prefer to walk to avoid spending extra money on “it’s only a ten-minute walk!”. But…

Interesting

Top Cosmodrome Tours

USA Cape Canaveral and Kennedy Space Center The Kennedy Space Center is one of the world’s main spaceports. A rocket park and a museum complex with space attractions are open to visitors, however, mos…

Interesting

Did you know that some airports have beds?

Did you know that some airports have beds? They are intended for passengers whose flights were canceled due to bad weather or other force majeure circumstances. These unfortunate travelers are offered…

Interesting

The Oldest Cities in the World

Relaxing among skyscrapers in a brand new hotel in Dubai is cool, of course, but what about a trip to places that are more than five thousand years old? We tell you about cities that have existed for…

Frequently asked questions about the South Portland — Washington, D.C. flight

How long is the flight from South Portland to Washington, D.C.?

A nonstop South Portland — Washington, D.C. flight takes about 1 h 45 min — the distance between the cities is around 775 km.

How far is it from South Portland to Washington, D.C.?

The distance from South Portland to Washington, D.C. is about 775 km, which a nonstop flight covers in around 1 h 45 min.

Are there direct flights from South Portland to Washington, D.C.?

Yes, there are nonstop flights South Portland — Washington, D.C. — around 87 flights per week.

Which airlines fly from South Portland to Washington, D.C.?

Airlines operating South Portland — Washington, D.C. include United Airlines, American Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do South Portland — Washington, D.C. flights use?

Flights from South Portland depart from Portland International Jetport, and arrive at Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport, Ronald Reagan National Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from South Portland to Washington, D.C.?

The price of a South Portland — Washington, D.C. ticket depends on your travel date, season and demand: it is usually cheapest to fly in October, and most expensive in August. Tickets typically cost between $109 and $250. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights South Portland — Washington, D.C.?

Flights South Portland — Washington, D.C. are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is October. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from South Portland to Washington, D.C.?

To catch a low fare South Portland — Washington, D.C., book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually October.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from South Portland

See all

New York City Chicago Philadelphia Atlanta Charlotte Detroit Denver Minneapolis Orlando Dallas Houston Tampa San Francisco Los Angeles Syracuse

Cheap flights from South Portland to Washington, D.C.

Flight deals from South Portland to Washington, D.C.

Top 10 cheap flights from South Portland to Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

Top 10 direct flights from South Portland to Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland to Washington, D.C.: departing soon

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

South Portland — Washington, D.C.

About the South Portland — Washington, D.C. flight

Facts about this route

Flight schedule from South Portland to Washington, D.C.

Flight ticket prices by day: South Portland — Washington, D.C.

Prices by month

When to fly

Temperature · Washington, D.C.

Dry and wet days · Washington, D.C.

Wind speed and direction · Washington, D.C.

We'll let you know if you need a visa

How to get the best deal on a South Portland — Washington, D.C. ticket

Cities and airports on the South Portland — Washington, D.C. route

South Portland

Washington, D.C.

Interesting articles about Washington, D.C.

The World’s Largest Cities

Graffiti: Where to go for street art

Free Public Transport Abroad

Top Cosmodrome Tours

Did you know that some airports have beds?

The Oldest Cities in the World

Frequently asked questions about the South Portland — Washington, D.C. flight

Where else you can fly from South Portland

Where else you can fly from Washington, D.C.

Other popular routes

Other popular routes