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Washington, D.C.

$89+ Cheap flights from Portland (PDX) to Washington, D.C. (WAS)

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — WAS
Sep 16 — Sep 231
Wed 9/16
Wed 9/23
1 adult, Economy
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Find cheap flights from Portland to Washington, D.C. 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”

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Cheapflights Tip: The best prices from Portland to Washington, D.C. are usually found in February or September, booked 57 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Portland to Washington, D.C.

Cheapest flights from Portland to Washington, D.C.
Explore the most affordable flight options available from Portland to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.

This Southwest deal was found by Cheapflights users on 8/16. 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.
Wed 9/2311:30 pm -
1 stop7h 45m
Tue 9/298:10 am -
Nonstop5h 30m
Deal found 8/16$253
This Southwest deal was found by Cheapflights users on 8/13. 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.
Fri 9/410:45 pm -
Nonstop4h 55m
Fri 9/2512:35 pm -
Nonstop5h 25m
Deal found 8/13$254
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Fri 10/1610:55 pm -
1 stop9h 15m
Tue 10/277:17 am -
1 stop8h 05m
Deal found 8/13$255
This Delta deal was found by Cheapflights users on 8/13. 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.
Wed 9/25:08 pm -
1 stop10h 12m
Wed 9/96:10 am -
1 stop7h 14m
Deal found 8/13$258
This Expedia deal was found by Cheapflights users on 8/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:30 am -
Nonstop5h 10m
Wed 9/164:43 pm -
Nonstop5h 32m
Deal found 8/13$259
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
Mon 9/147:30 am -
Nonstop5h 10m
Thu 9/174:43 pm -
Nonstop5h 32m
Deal found 8/14$260
This Delta deal was found by Cheapflights users on 8/13. 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.
Fri 10/302:20 pm -
1 stop7h 31m
Wed 11/47:30 am -
1 stop8h 08m
Deal found 8/13$262
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/237:30 am -
Nonstop5h 10m
Wed 9/304:43 pm -
Nonstop5h 32m
Deal found 8/17$271
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Wed 9/239:44 pm -
1 stop9h 00m
Mon 9/286:00 am -
1 stop7h 55m
Deal found 8/13$272
This Southwest deal was found by Cheapflights users on 8/14. 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.
Sat 9/51:35 pm -
2 stops13h 55m
Sat 9/126:30 am -
1 stop8h 20m
Deal found 8/14$274
This CheapOair deal was found by Cheapflights users on 8/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:38 pm -
1 stop20h 33m
Mon 9/147:00 am -
1 stop7h 43m
Deal found 8/16$341
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:20 pm -
1 stop21h 31m
Sun 9/67:00 am -
1 stop13h 11m
Deal found 8/14$342

Find flight deals from Portland to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Washington, D.C. (WAS). 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 August 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$253
(Southwest)

One-way from

$89
(Southwest)

Popular in

March

Cheapest in

February

Average price

$385

Good round-trip deal

$309 or less

Good one-way deal

$213 or less
Provider with most accurate pricing for Portland-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Washington, D.C. (WAS) flights.
Search Deals
From Portland to Washington, D.C. (WAS)
Search Deals
One-way flight from Portland to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Portland to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from Portland to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Washington, D.C. 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 August 17, 2026.
Use the filters below to find and compare flights from Portland to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBaltimore

PDX Portland - BWI Baltimore/Washington

PDXBWI

Portland

Wed 10/21

2:20 pm-12:51 am

1 stop7h 31m

Baltimore/Washington

Sat 10/24

2:11 pm-7:09 pm

1 stop7h 58m

$263

PortlandBaltimore

PDX Portland - BWI Baltimore/Washington

PDXBWI

Portland

Wed 9/23

11:02 pm-10:30 am

1 stop8h 28m

Baltimore/Washington

Tue 9/29

6:25 am-2:27 pm

2 stops11h 02m

$268

PortlandBaltimore

PDX Portland - BWI Baltimore/Washington

PDXBWI

Portland

Sat 9/5

1:35 pm-6:30 am

2 stops13h 55m

Baltimore/Washington

Sat 9/12

2:35 pm-9:25 pm

2 stops9h 50m

$279

PortlandBaltimore

PDX Portland - BWI Baltimore/Washington

PDXBWI

Portland

Sat 10/17

11:35 pm-12:55 pm

2 stops10h 20m

Baltimore/Washington

Thu 10/22

10:10 pm-9:50 am

1 stop14h 40m

$299

PortlandBaltimore

PDX Portland - BWI Baltimore/Washington

PDXBWI

Portland

Thu 10/29

4:10 pm-5:45 am

1 stop10h 35m

Baltimore/Washington

Sun 11/1

6:20 am-1:05 pm

1 stop9h 45m

$318

PortlandBaltimore

PDX Portland - BWI Baltimore/Washington

PDXBWI

Portland

Wed 9/30

7:30 am-3:40 pm

Nonstop5h 10m

Baltimore/Washington

Wed 10/14

7:02 am-1:24 pm

1 stop9h 22m

$320

PortlandBaltimore

PDX Portland - BWI Baltimore/Washington

PDXBWI

Portland

Thu 11/5

11:30 pm-12:05 pm

2 stops9h 35m

Baltimore/Washington

Tue 11/10

2:55 pm-11:20 pm

2 stops11h 25m

$328

PortlandBaltimore

PDX Portland - BWI Baltimore/Washington

PDXBWI

Portland

Wed 11/11

2:24 pm-12:50 am

1 stop7h 26m

Baltimore/Washington

Sun 11/15

6:00 am-10:28 am

1 stop7h 28m

$330
Quickest round-trip

PortlandBaltimore

PDX Portland - BWI Baltimore/Washington

PDXBWI

Portland

Wed 9/23

10:45 pm-6:40 am

Nonstop4h 55m

Baltimore/Washington

Tue 9/29

8:10 am-10:40 am

Nonstop5h 30m

$333

PortlandWashington, D.C.

PDX Portland - DCA Washington, D.C. Reagan-National

PDXDCA

Portland

Fri 10/16

11:35 pm-11:00 am

1 stop8h 25m

Washington, D.C. Reagan-National

Tue 10/27

4:50 pm-11:35 pm

2 stops9h 45m

$354

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Portland to Washington, D.C.

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 Washington, D.C. in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Washington, D.C. 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. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Washington, D.C. 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. 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 Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Washington, D.C.

What is the cheapest month to book a flight from Portland to Washington, D.C.?

Currently, February is the cheapest month in which you can book a flight from Portland to Washington, D.C. (average of $376). Flying from Portland to Washington, D.C. in July is currently the most expensive (average of $561). 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 WAS?

Find hourly flight availability from Portland to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2026.

When flying from Portland to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Portland to Washington, D.C.

Explore weekly flight availability from Portland to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 17, 2026.

The most flights from PDX to WAS are scheduled on a Monday (3 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from Portland to Washington, D.C.?

Airfare is below average for this route at the moment.
Portland to Washington, D.C. flights typically cost between $308 and $417 in September.
The cheapest round-trip price found within the last 5 days was $253 on Southwest (Sep 23-Sep 29).

What’s the top layover airport for flights from Portland to Washington, D.C.?

Share of 1-stop round-trip flights from Portland to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

Chicago (ORD) – chosen by Cheapflights users on 50% of 1-stop itineraries from Portland to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Portland to Washington, D.C.?

Average round-trip fare for 1-stop flights from Portland to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of $271.

What’s the fastest layover option from Portland to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from Portland to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 8h 50m.

Which airport typically offers the quickest layover for flights from Portland to Washington, D.C.?

Average layover duration for 1-stop one-way flights from Portland to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 2h 17m.

How far ahead should I book a flight from Portland to Washington, D.C.?

The best time to book flights from Portland to Washington, D.C. is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated August 17, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from Portland to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,218 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
8.0
Very good
4,218 reviews
Southwest
8.0
Very good
4,218 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Alaska Airlines
7.9
Good
12,811 reviews
Southwest
8.0
Very good
4,218 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Delta
7.8
Good
8,503 reviews
Southwest
8.0
Very good
4,218 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
United Airlines
7.4
Good
10,106 reviews
Southwest
8.0
Very good
4,218 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
American Airlines
7.1
Good
11,946 reviews
Southwest
8.0
Very good
4,218 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Related info for your journey

Find useful and relevant information for your journey from Portland to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Washington, D.C.?

    Located just 6.0 mi from the city center, Portland is the airport most travelers will use when flying to Washington, D.C. from Portland. Booking flights from Portland (PDX) to Washington, D.C. should be relatively easy as there are 2 daily outbound flights to Washington, D.C. from 6 different airlines.

  • How long is the flight from Portland to Washington, D.C.?

    Southwest, American Airlines, and Delta can get you from Portland to Washington, D.C. in just under 7h 45m. Your travel time can differ by up to 2h 27m. The distance from Portland to Washington, D.C. is about 2351 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Portland to Washington, D.C. round-trip?

    Our cheapest airline available from Portland to Washington, D.C. is Delta. Our recent data shows that you can find tickets from as low as $138 on this airline. Additional options worth looking into are Frontier and Alaska Airlines, starting at $165 and $223 round-trip. Delta is currently priced 68% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Portland to Washington, D.C. one-way?

    One-way options have recently been found by users for as low as $105 on Frontier. Other airlines that offer cheap prices include Delta from $128 and American Airlines from $138 one-way.

  • What are the most popular routes from Portland to Washington, D.C.?

    When deciding which route to take from Portland to Washington, D.C. consider Portland - Washington, D.C. Dulles Intl, Portland - Washington, D.C. Reagan-National or Portland - Baltimore/Washington as they are the most popular.

  • What are the cheapest flights from Portland to Washington, D.C.?

    Looking at all options, your cheapest flight can be booked for $156. While the most popular route (Portland - Washington, D.C. Dulles Intl) can be booked for $270 on average, our data indicates $1,188 when flying from Portland to Washington, D.C..

  • Can I find deals for flights from Portland to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Portland to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Washington, D.C..

  • Can I find deals for business class flights from Portland to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Portland to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from Portland to Washington, D.C. (average of $376). Flying from Portland to Washington, D.C. in July is currently the most expensive (average of $561). 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.

See more FAQs

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Owings Mills
Arlington
Tysons
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley
Woodbridge
Silver Spring
Largo

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Portland to Washington, D.C.

Discover the top 6 airlines that operate flights from Portland to Washington, D.C.. 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 August 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$138Average$385FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$165Average$276FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$223Average$484FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$232Average$520FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$247Average$525FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$253Average$443FlexibilityNo cancel feeOn-time69%

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