Cheap flights from Portland to Washington, D.C. from $82
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 7/18. 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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Sun Country Air flights from Portland to Washington, D.C.
Our best Sun Country Air deals on Portland to Washington, D.C. flight tickets
Southwest flights from Portland to Washington, D.C.
Our best Southwest deals on Portland to Washington, D.C. flight tickets
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Portland to Washington, D.C.
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.?
The month of August is, on average, the cheapest month to fly to Washington, D.C. from Portland, with most prices found around $332. If you’re not able to fly to Washington, D.C. in August, then February is your next best option. Flight prices from Portland to Washington, D.C. during February average around $336.
What is the cheapest day to depart on your flight to Washington, D.C.?
On average, the least expensive day to fly to Washington, D.C. from Portland is on a Friday. momondo users have found tickets for Friday departures for as low as $518. However, this price may fluctuate depending on the airline, the season, and holidays. 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. for around $712.
What is the cheapest time of day to depart on your flight to Washington, D.C.?
In the afternoon is the cheapest time of day to fly from Portland to Washington, D.C. when you can find flight prices for as low as $269. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $598. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Portland to Washington, D.C. flight route?
Fly from Portland to Baltimore/Washington for the best Portland - Washington, D.C. flight prices
How far in advance should I book a flight to Washington, D.C.?
You are more likely to see cheaper flights to Washington, D.C. from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $515 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Portland for as low as $377 on momondo.
What cabin class options are available on Portland to Washington, D.C. flights?
There are 4 cabin classes available to choose from on Portland to Washington, D.C. 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. flights?
You could potentially save up to 37% on your flight if you consider stops on a Portland to Washington, D.C. flight.
How have Portland to Washington, D.C. flight prices changed over time?
As of July 2025, prices for Portland to Washington, D.C. flights are approximately 54% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Portland to Washington, D.C.?
Frontier, United Airlines, and American Airlines are the most popular carriers operating from Portland to Washington, D.C.
What airlines fly to Washington, D.C.?
United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Washington, D.C. from Portland according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 8 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.
How many flights depart from Portland to Washington, D.C. on average per day?
5 flights are operational daily from Portland to Washington, D.C. as of July 2025. The most popular departure time for this route is 8:00AM, with 61% of flights per day taking off at noon.
How many flights depart from Portland to Washington, D.C. on average per week?
The number of flights available between Portland and Washington, D.C. is 39 per week as of July 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.
When to book flights from Portland to Washington, D.C.
Cheap Portland to Washington, D.C. (PDX to WAS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to Washington, D.C.
Best Price Found | $82 |
|---|---|
Fastest flight time | 4h 57m |
Direct flights | Every day |
Airports in Washington, D.C. | 3 airports |
How far is Portland to Washington, D.C. by plane?
A flight from Portland to Washington, D.C. will travel around 2345.6 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.?
Prices for flights from Portland Airport to Washington, D.C. are updated daily.
How many operators does momondo search for flights from Portland Airport to Washington, D.C.?
As of July 2025, there are 8 operators available to choose from for flights from Portland Airport to Washington, D.C..
How old do you have to be to fly from Portland Airport to Washington, D.C.?
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..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Portland to Washington, D.C.?
momondo data reveals that the most frequently booked plane model on the route from Portland to Washington, D.C. is Boeing 737-800 Passenger/BBJ2 (winglets), representing 51.70% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 22.71%, Boeing 737 at 7.25%, and Boeing 737-800 at 6.07%.
What is the most popular airline from Portland to Washington, D.C.?
Based on momondo bookings for flights between Portland and Washington, D.C., the leading airline is United Airlines, making up 31% of the total bookings. Other popular airlines include Alaska Airlines with 30%, Spirit Airlines with 11%, and Frontier with 10%.
Best airlines flying from Portland to Washington, D.C.
Compare and see reviews for airlines that fly from Portland to Washington, D.C. with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $94 | Free Cancellation | Rating 6.3 8,064 reviews | |||
| PriceFrom $100 | Free Cancellation | Rating 5.9 3,273 reviews | |||
| PriceFrom $236 | Free Cancellation | Rating 7.4 8,844 reviews | |||
| PriceFrom $254 | Free Cancellation | Rating 8.0 7,962 reviews | |||
| PriceFrom $298 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $299 | Free Cancellation | Rating 7.8 2,552 reviews | |||
| PriceFrom $338 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $353 | Free Cancellation | Rating 8.0 4,258 reviews |
Alaska Airlines Flights From Portland to Washington, D.C.
Alaska Airlines flight deals from Portland to Washington, D.C. start from $338 round-trip. Over the 7 Alaska Airlines flights for this route in a normal week, average airfare is usually $558 round-trip - but some users have found much cheaper deals with momondo.
Southwest Flights From Portland to Washington, D.C.
Another popular option for Portland to Washington, D.C. flights is Southwest (8.0/10, 4,258 ratings). Southwest flies from Portland to Washington, D.C. around 5 times per week, with deals starting from $353 round-trip and rising to an average price of around $525.
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.?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Portland.
Can I find flights from Portland to Washington, D.C. with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Washington, D.C. from Portland with this policy.
How can momondo help me find flights from Portland to Washington, D.C.?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Washington, D.C..
I’m not ready to book a flight from Portland to Washington, D.C. right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Portland to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.