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161 € Cheap Flights from Portland to Washington Dulles

Compare Portland to Washington Dulles flight deals

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Flight deals from Portland to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Portland to Washington Dulles? Find the lowest prices on one-way and return tickets right here.
Washington D.C..161 € per passenger.Departing Thu, 2 Oct, returning Mon, 13 Oct.Return flight with United.Outbound direct flight with United departs from Portland on Thu, 2 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 13 Oct, arriving in Portland.Price includes taxes and charges.From 161 €, select.
Washington D.C..162 € per passenger.Departing Fri, 26 Sep, returning Sun, 28 Sep.Return flight with United.Outbound direct flight with United departs from Portland on Fri, 26 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sun, 28 Sep, arriving in Portland.Price includes taxes and charges.From 162 €, select.
Washington D.C..170 € per passenger.Departing Sat, 30 Aug, returning Wed, 3 Sep.Return flight with United.Outbound direct flight with United departs from Portland on Sat, 30 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 3 Sep, arriving in Portland.Price includes taxes and charges.From 170 €, select.
Washington D.C..213 € per passenger.Departing Fri, 29 Aug, returning Sun, 31 Aug.Return flight with United.Outbound direct flight with United departs from Portland on Fri, 29 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sun, 31 Aug, arriving in Portland.Price includes taxes and charges.From 213 €, select.
Washington D.C..220 € per passenger.Departing Wed, 18 Feb, returning Wed, 25 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 18 Feb, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Wed, 25 Feb, arriving in Portland.Price includes taxes and charges.From 220 €, select.
Washington D.C..366 € per passenger.Departing Tue, 3 Mar, returning Sat, 7 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Tue, 3 Mar, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Sat, 7 Mar, arriving in Portland.Price includes taxes and charges.From 366 €, select.
Washington D.C..383 € per passenger.Departing Tue, 3 Mar, returning Sat, 7 Mar.Return flight with United.Outbound direct flight with United departs from Portland on Tue, 3 Mar, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sat, 7 Mar, arriving in Portland.Price includes taxes and charges.From 383 €, select.
Washington D.C..385 € per passenger.Departing Thu, 12 Feb, returning Thu, 19 Feb.Return flight with United.Outbound direct flight with United departs from Portland on Thu, 12 Feb, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Thu, 19 Feb, arriving in Portland.Price includes taxes and charges.From 385 €, select.

Find the cheapest month to fly from Portland to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Washington Dulles flights are currently cheapest in October.
Aug
from 213 €
Sep
from 162 €
Oct
from 161 €
Nov
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Dec
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Jan
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Feb
from 220 €
Mar
from 366 €
Apr
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May
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Jun
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Jul
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Direct flights from Portland to Washington Dulles

Portland to Washington Dulles: Alternative routes

Compare routes from Portland to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Portland to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found161 €
Cheapest month to flyOctober
Average flight time1 hr, 54 mins
Most popular airlineUnited
Average flights per week57

Finding cheap flights from Portland to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Portland to Washington Dulles is 161 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 54 minutes is the average flight time from Portland to Washington Dulles.
United, GoJet Airlines and Republic Airways fly direct from Portland to Washington Dulles.
As of August 2025, there are 57 flights per week flying from Portland to Washington Dulles.
The cheapest month to fly from Portland to Washington Dulles is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Washington Dulles Airport on Thursday, 2 October 2025.
Yes – the average flight time is 1 hour and 54 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Washington Dulles.

Flying from Portland International Jetport Airport (PWM) to Washington Dulles International Airport (IAD): what you need to know

  • Around 1 hour 55 minutes is how long you'll be travelling on a direct flight from Portland International Jetport Airport to Washington Dulles International Airport.

  • Portland and Washington DC follow the same timezone, UTC-4.

  • Choose from 40 weekly Portland International Jetport Airport to Washington Dulles International Airport flights. The 05:30 departure with United Airlines is the earliest available. United Airlines operates the latest service of the day at 19:27.

  • Arrive at the airport on time so you don't miss your PWM to IAD flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.

  • You'll likely experience bigger queues during popular months like August. Arriving up to four hours ahead of an international flight and two hours for a domestic departure will help ensure a smooth travel experience.

  • United Airlines has direct flights from Portland International Jetport Airport to Washington Dulles International Airport. Book with this popular carrier, then get ready to tick off the sights in Washington DC — and maybe even more of United States if your schedule allows.

  • The airline with the highest number of bookings on this route is United Airlines.

  • With a dependable 87.27% of services landing on schedule, United Airlines is the most punctual carrier operating PWM to IAD flights.

  • We make it a breeze to book a flight with a stopover. To see all your options for tickets from Portland International Jetport Airport to Washington Dulles International Airport, uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to explore the city of your choice. Some great stopovers between PWM and IAD include:

    • Philadelphia International Airport

    • LaGuardia Airport

    • Newark Liberty International Airport

How to find the cheapest flights from Portland International Jetport Airport (PWM) to Washington Dulles International Airport (IAD)

  • The lowest price we've seen for a one-way Portland International Jetport Airport to Washington Dulles International Airport flight is 76 €. A return ticket right now is 161 €. Depending on the availability when you book, these fares can change.

  • Book six months before flying. After looking at the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from PWM to IAD.

  • The cheapest month for flights from Portland International Jetport Airport to Washington Dulles International Airport is May. Use the 'Whole month' tool to find the lowest airfares if you have a flexible schedule.

  • Finding cheap flights from PWM to IAD couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll notify you when a lower fare pops up.

  • Tailor your trip with filters. Choose your departure and arrival times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Portland International Jetport Airport to Washington Dulles International Airport.

Handy information about Portland International Jetport Airport (PWM)

  • PWM's address is 1001 Westbrook Street.

  • Portland International Jetport Airport scores top marks for its on-time performance. 82.15% of flights that depart PWM reach their destination without delay.

  • Central Portland to Portland International Jetport Airport is around 8 kilometres. Depending on traffic, it'll take about 15 minutes to get there if you're ride-sharing, catching a cab or driving.

  • You can expect a journey time of around 40 minutes when using public transport.

  • Looking for a handy hotel near PWM? If you're catching an early flight from Portland International Jetport Airport to Washington Dulles International Airport, these accommodation options will have you moments from check-in:

Arriving at Washington Dulles International Airport (IAD)

Getting from Washington Dulles International Airport (IAD) to central Washington DC

  • You'll find IAD at 1 Saarinen Circle.

  • Washington Dulles International Airport is roughly 56 kilometres from the centre of Washington DC. Driving there takes about 50 minutes.

  • When travelling by public transport, expect a journey of around 3 hours 25 minutes.

When to fly to Washington Dulles International Airport (IAD)

  • April is the busiest month for flights from Portland International Jetport Airport to Washington Dulles International Airport. To steer clear of the crowds, head to Washington DC in January.

  • The warmest month in Washington DC is July, with the temperature ranging between 19ºC (66ºF) and 33ºC (91ºF). Lock in your flights from Portland International Jetport Airport to Washington Dulles International Airport in this month if this is the kind of weather you like.

  • January sees average temperatures of between -6ºC (21ºF) and 10ºC (50ºF). Search for cheap tickets from PWM to IAD around that time if you want to travel in cooler conditions.

Explore more of United States

  • You've visited Washington DC, now it's time to discover other corners of United States. Journey around 322 kilometres north-east to New York to check off its leading attractions. From Statue of Liberty to Central Park and Empire State Building, there's plenty to keep you busy.

  • Philadelphia is another essential stop in United States and is around 193 kilometres north-east of Washington DC. No trip is complete without visiting Liberty Bell, Independence Hall and Philadelphia Museum of Art.

Plan the rest of your trip from Portland to Washington D.C.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.