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Cheap Flights from Washington Dulles to Portland

Compare Washington Dulles to Portland flight deals

Find the cheapest month or even day of the year to fly to Portland

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Flight deals from Washington Dulles to Portland

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Portland Airport? If you want to travel next month, return fares start from R 5,823. Find the lowest prices on one-way and return tickets right here.
Portland.R 2,340 per passenger.Departing Sat, 22 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Sat, 22 Aug, arriving in Portland.Price includes taxes and charges.From R 2,340, select.
Portland.R 2,883 per passenger.Departing Wed, 2 Sep.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Wed, 2 Sep, arriving in Portland.Price includes taxes and charges.From R 2,883, select.
Portland.R 2,909 per passenger.Departing Thu, 15 Oct.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Thu, 15 Oct, arriving in Portland.Price includes taxes and charges.From R 2,909, select.
Portland.R 2,919 per passenger.Departing Wed, 4 Nov.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Wed, 4 Nov, arriving in Portland.Price includes taxes and charges.From R 2,919, select.
Portland.R 2,937 per passenger.Departing Tue, 21 Jul.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Tue, 21 Jul, arriving in Portland.Price includes taxes and charges.From R 2,937, select.
Portland.R 2,946 per passenger.Departing Mon, 1 Feb.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Mon, 1 Feb, arriving in Portland.Price includes taxes and charges.From R 2,946, select.
Portland.R 4,082 per passenger.Departing Sun, 3 Jan.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Sun, 3 Jan, arriving in Portland.Price includes taxes and charges.From R 4,082, select.
Portland.R 4,099 per passenger.Departing Tue, 15 Sep.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Tue, 15 Sep, arriving in Portland.Price includes taxes and charges.From R 4,099, select.
Portland.R 4,099 per passenger.Departing Tue, 15 Dec.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Tue, 15 Dec, arriving in Portland.Price includes taxes and charges.From R 4,099, select.
Portland.R 4,105 per passenger.Departing Mon, 8 Mar.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Mon, 8 Mar, arriving in Portland.Price includes taxes and charges.From R 4,105, select.
Portland.R 4,136 per passenger.Departing Tue, 11 Aug.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Tue, 11 Aug, arriving in Portland.Price includes taxes and charges.From R 4,136, select.
Portland.R 4,136 per passenger.Departing Thu, 15 Oct.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Thu, 15 Oct, arriving in Portland.Price includes taxes and charges.From R 4,136, select.
Portland.R 4,151 per passenger.Departing Wed, 4 Nov.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Wed, 4 Nov, arriving in Portland.Price includes taxes and charges.From R 4,151, select.
Portland.R 4,169 per passenger.Departing Sat, 18 Jul.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Sat, 18 Jul, arriving in Portland.Price includes taxes and charges.From R 4,169, select.
Portland.R 4,174 per passenger.Departing Mon, 8 Mar.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Mon, 8 Mar, arriving in Portland.Price includes taxes and charges.From R 4,174, select.
Portland.R 4,368 per passenger.Departing Mon, 29 Jun.One-way flight with Breeze Airways.Outbound indirect flight with Breeze Airways, departs from Washington Dulles on Mon, 29 Jun, arriving in Portland.Price includes taxes and charges.From R 4,368, select.

Find the cheapest month to fly from Washington Dulles to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Portland flights are currently cheapest in August.
Jun
from R 4,368
Jul
from R 2,937
Aug
from R 2,340
Sep
from R 2,883
Oct
from R 2,909
Nov
from R 2,919
Dec
from R 4,099
Jan
from R 4,082
Feb
from R 2,946
Mar
from R 4,105
Apr
Find prices
May
Find prices

Direct flights from Washington Dulles to Portland

Washington Dulles to Portland: Alternative routes

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

Portland

10km from central Portland
ClosestCheapest
from R 2,340
Search flights

Salem

72km from central Portland
Search flights

Washington D.C. to Portland: Flight information

The things to know before you go.
Cheapest flight foundR 2,340
Cheapest month to flyAugust
Average flight time5 hrs, 46 mins
Most popular airlineBrussels Airlines
Average flights per week16

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

The best price we found for a return flight from Washington Dulles to Portland is R 4,669. 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.
5 hours and 46 minutes is the average flight time from Washington Dulles to Portland.
Brussels Airlines and United fly direct from Washington Dulles to Portland.
As of June 2026, there are 16 flights per week flying from Washington Dulles to Portland.
The cheapest month to fly from Washington Dulles to Portland is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Portland Airport on Friday, 21 August 2026.
Yes – the average flight time is 5 hours and 46 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 Portland 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 Portland is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Frontier Airlines and United offer the cheapest flight tickets to Portland.

Travelling from Washington Dulles Airport (IAD) to Portland Airport (PDX): what you need to know

  • Around 5 hours 45 minutes is how long you can expect to be travelling on a direct flight from Washington Dulles Airport to Portland Airport.

  • Portland is three hours behind Washington DC and follows the UTC-8 timezone.

  • Each week, there are five Washington Dulles Airport to Portland Airport flights. If you want to get going as early as possible, go for the 17:10 United Airlines flight. If you're eager to make the most of your time before you fly, the latest flight is at 17:30 with United Airlines.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Show up at the airport on time to board your IAD to PDX flight.

  • Travelling during a peak month like July? School holidays and other popular seasons can lead to longer lines at check-in and security. Play things extra safe and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

  • United is your ticket to exploring Portland (and maybe even some other exciting corners of the United States!). Check out the direct flights from Washington Dulles Airport to Portland Airport offered by this carrier.

  • The airline with the highest passenger demand on this route is United.

  • United is the most punctual carrier that offers IAD to PDX flights, with 75.9% of its services arriving as scheduled.

  • We make it a piece of cake to book a flight with a stopover. To see your options for tickets from Washington Dulles Airport to Portland Airport, deselect 'Direct flights only.' Then, pick a flight with a stop long enough to tour your chosen city. Some great stopovers between IAD and PDX include:

    • Seattle / Tacoma International Airport

    • Detroit Wayne County Airport

    • Minneapolis St Paul Airport

How to find the cheapest flights from Washington Dulles Airport (IAD) to Portland Airport (PDX)

  • R 2,340 is the best price for a one-way Washington Dulles Airport to Portland Airport flight. Return flights start at R 4,669. These prices may change based on availability.

  • To get your hands on cheap tickets from IAD to PDX, book early. Airlines typically offer the most competitive fares when flights are first made available.

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

  • You won't have to check back in every day to find out if fares have dropped when you create a Price Alert. We'll let you know the moment there's a new deal on cheap flights from IAD to PDX.

  • Find the right flight for you with the help of the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Washington Dulles Airport to Portland Airport, use the 'Sort by' function. You can also filter by departure and arrival times, airline, and number of stops.

Handy information about Washington Dulles Airport (IAD)

  • You'll find IAD at 1 Saarinen Circle.

  • When it comes to Washington Dulles Airport's on-time performance, data shows 77% of flights arrive within the scheduled timeframe.

  • Washington Dulles Airport is around 40 kilometres from central Washington DC. If you're driving, catching a taxi or ride-sharing from the centre, it'll take 45 minutes or so to arrive, depending on the traffic.

  • Planning to take public transport? Expect a trip time of around 1 hour 10 minutes.

  • Catching an early flight from Washington Dulles Airport to Portland Airport? Avoid the stress of rushing to the airport (and sneak in some extra precious sleep) by picking one of these stays near IAD:

Arriving at Portland Airport (PDX)

When to fly to Portland Airport (PDX)

  • The quietest month for a flight from Washington Dulles Airport to Portland Airport is March, while July is the most popular. Pick the best time to visit Portland based on whether you prefer a faster pace or a more relaxed vibe.

  • Before locking in your flight from Washington Dulles Airport to Portland Airport, think about the type of weather you enjoy. August is the warmest month in Portland, with temperatures ranging from 12ºC (54ºF) to 31ºC (88ºF).

  • Search for cheap tickets from IAD to PDX in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -2ºC (28ºF) and 10ºC (50ºF) on average.

Explore more of the United States

  • Seattle is just one of the many places in the United States waiting to be explored once you've seen the sights of Portland. Around 241 kilometres away to the north, its best attractions include Space Needle, Pike Place Market and Seattle Skyline.

  • If you want to check out another major stop in the United States, head for Spokane, roughly 467 kilometres north-east of Portland. Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes are among the biggest draws.

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

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.