$154+ Cheap flights from Portland (PDX) to Dulles Intl (IAD)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Portland to Dulles Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.The best prices from Portland to Washington, D.C. Dulles Intl are usually found in February or September, booked 64 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday
Cheap flight deals from Portland to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 23, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $303 (United Airlines) |
One-way from | $154 (United Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $516 |
Good round-trip deal | $459 or less |
Good one-way deal | $265 or less |
Find flight deals from Portland to Dulles Intl
Cheapest flights from Portland to Dulles IntlExplore the most affordable flight options available from Portland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.
Explore the most affordable flight options available from Portland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.
This United Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Sun Country Air deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kissandfly.com deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kissandfly.com deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from Portland to Dulles Intl within your budget
Customize your flight search to find flights from Portland to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 23, 2025.
Fly from
Fly to
Route
Depart
Return
Price
PortlandWashington, D.C.
PDX - IAD
PDXIAD
Portland
Tue 3/4
7:46 am-8:51 pm
1 stop10h 05m
Washington, D.C. Dulles Intl
Tue 3/11
5:10 pm-8:00 pm
Nonstop5h 50m
PortlandWashington, D.C.
PDX - IAD
PDXIAD
Portland
Sat 2/15
9:29 pm-4:18 pm
1 stop15h 49m
Washington, D.C. Dulles Intl
Sat 2/22
5:18 pm-9:00 am
1 stop18h 42m
PortlandWashington, D.C.
PDX - IAD
PDXIAD
Portland
Wed 2/12
1:30 pm-11:34 pm
1 stop7h 04m
Washington, D.C. Dulles Intl
Wed 2/19
4:23 pm-11:58 pm
1 stop10h 35m
PortlandWashington, D.C.
PDX - IAD
PDXIAD
Portland
Tue 3/11
5:00 am-4:20 pm
1 stop8h 20m
Washington, D.C. Dulles Intl
Tue 3/11
5:20 pm-11:00 pm
1 stop8h 40m
PortlandWashington, D.C.
PDX - IAD
PDXIAD
Portland
Wed 7/16
6:45 pm-11:43 am
1 stop13h 58m
Washington, D.C. Dulles Intl
Sun 7/20
12:40 pm-10:46 pm
1 stop13h 06m
PortlandWashington, D.C.
PDX - IAD
PDXIAD
Portland
Sat 2/15
5:59 pm-7:33 am
1 stop10h 34m
Washington, D.C. Dulles Intl
Sat 2/22
5:18 pm-8:40 am
2 stops18h 22m
PortlandWashington, D.C.
PDX - IAD
PDXIAD
Portland
Thu 5/1
8:45 am-10:40 pm
1 stop10h 55m
Washington, D.C. Dulles Intl
Sun 5/4
7:00 pm-12:35 am
1 stop8h 35m
PortlandWashington, D.C.
PDX - IAD
PDXIAD
Portland
Sat 3/8
10:27 pm-6:17 am
Nonstop4h 50m
Washington, D.C. Dulles Intl
Sat 3/15
6:00 am-8:28 pm
1 stop17h 28m
PortlandWashington, D.C.
PDX - IAD
PDXIAD
Portland
Sat 2/22
7:46 am-9:02 pm
1 stop10h 16m
PortlandWashington, D.C.
PDX - IAD
PDXIAD
Portland
Wed 2/26
7:15 am-5:48 pm
1 stop7h 33m
Compare providers for flights from Portland to Dulles Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Dulles Intl in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Portland to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Portland with our price prediction graph.
Travel insights for flights from Portland to Dulles Intl
Get recent, data-driven insights about flights from Portland to Dulles Intl including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Portland to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Portland to Dulles Intl. Price data was last updated on January 17, 2025.
To ensure you get the cheapest price possible for a flight from Portland to Washington, D.C. Dulles Intl Airport, you should look to book at least 64 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Portland to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Portland to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Portland to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PDX to IAD?
Find hourly flight availability from Portland to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 23, 2025.
A simple way to save on the total cost of your ticket is to fly from Portland to Washington, D.C. Dulles Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight in the morning.
What is the cheapest day to fly from Portland to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Portland to Dulles Intl. Price data was last updated on January 21, 2025.
Travelers seeking maximum savings on their Portland to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Dulles Intl by month
Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.
Temperature in Dulles Intl by month
Plan your trip to Dulles Intl by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated January 23, 2025.
Read through reviews of airlines operating flights from Portland to Washington, D.C., such as United Airlines, Alaska Airlines and Southwest. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Related info for your journey
Find useful and relevant information for your journey from Portland to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Portland to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Portland to Dulles Intl
Discover the top 6 airlines that operate flights from Portland to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 23, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$95 | Average$227 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$296 | Average$455 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$298 | Average$441 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$318 | Average$564 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$337 | Average$576 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$397 | Average$582 | FlexibilityNo cancel fee | On-time69% |