Cheap flights from Portland to Washington, D.C. from $141
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 to Washington, D.C. departing on 8/18. 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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Hawaiian Airlines flights from Portland to Washington, D.C. Dulles Intl Airport
Our best Hawaiian Airlines deals on Portland to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines flights from Portland to Washington, D.C. Dulles Intl Airport
Our best American Airlines deals on Portland to Washington, D.C. Dulles Intl Airport flight tickets
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Portland to Washington, D.C. Dulles Intl Airport
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 cheapest month to fly to Washington, D.C. Dulles Intl Airport?
In general, February is the cheapest month to fly from Portland to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $436. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $437.
What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Our data shows that Wednesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $540. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Washington, D.C. Dulles Intl Airport for around $696.
What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Flying to Washington, D.C. Dulles Intl Airport from Portland in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $455 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $615 on average. Flights to Washington, D.C. Dulles Intl Airport from Portland in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Portland to Washington, D.C. Dulles Intl flight route?
Fly from Portland to Washington, D.C. Dulles Intl for the best Portland - Washington, D.C. Dulles Intl flight prices
How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?
You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Portland when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $517 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Portland for as low as $377 on momondo.
What cabin class options are available on Portland to Washington, D.C. Dulles Intl flights?
There are 4 cabin classes available to choose from on Portland to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Portland to Washington, D.C. Dulles Intl Airport flights?
You could potentially save up to 5% on your flight if you consider stops on a Portland to Washington, D.C. Dulles Intl Airport flight.
How have Portland to Washington, D.C. Dulles Intl Airport flight prices changed over time?
As of June 2025, prices for Portland to Washington, D.C. Dulles Intl Airport flights are approximately 24% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Portland to Washington, D.C. Dulles Intl?
Frontier, Hawaiian Airlines, and Delta are the most popular carriers operating from Portland to Washington, D.C. Dulles Intl
What airlines fly to Washington, D.C. Dulles Intl Airport?
United Airlines, Delta and Alaska Airlines are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Portland according to our data. United Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Portland to Washington, D.C. Dulles Intl Airport on average per day?
As of June 2025, 1 flights take off from Portland and land in Washington, D.C. Dulles Intl Airport each day. The most common flight departure time for this route is 8:00AM, with 100% of daily flights taking off at noon.
How many flights depart from Portland to Washington, D.C. Dulles Intl Airport on average per week?
As of June 2025, there are 13 flights per week flying from Portland to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.
When to book flights from Portland to Washington, D.C. Dulles Intl Airport
Cheap Portland to Washington, D.C. Dulles Intl Airport (PDX to IAD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to Washington, D.C. Dulles Intl Airport
How far is Portland to Washington, D.C. Dulles Intl by plane?
A flight from Portland to Washington, D.C. Dulles Intl will travel around 2324.3 mi. A reasonable flight in good conditions will take 4h 58m.
When did momondo last update prices for flights from Portland Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Portland Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Washington, D.C. Dulles Intl Airport?
The number of operators available for flights from Portland Airport to Washington, D.C. Dulles Intl Airport is 5 as of June 2025.
How old do you have to be to fly from Portland Airport to Washington, D.C. Dulles Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Portland to Washington, D.C. Dulles Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Portland to Washington, D.C. Dulles Intl Airport is Boeing 737-800 Passenger/BBJ2 (winglets), representing 41.21% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 33.33%, Boeing 737-800 at 4.19%, and Boeing 737 MAX 9 at 3.85%.
What is the most popular airline from Portland to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Portland to Washington, D.C. Dulles Intl Airport is United Airlines (65% of total bookings). The next most popular airlines are Delta (19%), Alaska Airlines (8%), and Southwest (5%).
Best airlines flying from Portland to Washington, D.C. Dulles Intl Airport
Compare and see reviews for airlines that fly from Portland to Washington, D.C. Dulles Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $297 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $298 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $337 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $356 | Free Cancellation | Rating 8.0 4,287 reviews | |||
| PriceFrom $364 | Free Cancellation | Rating 7.4 8,790 reviews |
United Airlines Flights From Portland to Washington, D.C. Dulles Intl Airport
United Airlines flight deals from Portland to Washington, D.C. Dulles Intl Airport start from $364 round-trip. Over the 6 United Airlines flights for this route in a normal week, average airfare is usually $534 round-trip - but some users have found much cheaper deals with momondo.
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.?
Finding the right flight to Washington, D.C. from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.
Can I find flights from Portland to Washington, D.C. with flexible booking policies on momondo?
Yes. All flights to Washington, D.C. from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.
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.