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Washington, D.C.

$84+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — WAS
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Washington, D.C. are usually found in February or January, booked 16 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap 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 September 15, 2025.

Round-trip from

$239
(CheapOair)

One-way from

$84
(Cheapflightsfares)

Popular in

March

Cheapest in

February

Average price

$369

Good round-trip deal

$346 or less

Good one-way deal

$188 or less
From Portland to Washington, D.C. (WAS)
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One-way flight from Portland to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Portland to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Portland to Washington, D.C. (WAS).
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Find 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 September 15, 2025.

This CheapOair deal was found by Cheapflights users on 9/15. 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.
Sun 10/56:05 amPDX - BWI
2 stops36h 09mFrontier
Tue 10/76:45 pmBWI - PDX
2 stops20h 03mFrontier
Deal found 9/15$239
This CheapOair deal was found by Cheapflights users on 9/15. 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 10/1612:43 pmPDX - BWI
2 stops27h 25mFrontier
Tue 10/218:45 amBWI - PDX
2 stops30h 03mFrontier
Deal found 9/15$240
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/85:30 amPDX - BWI
1 stop9h 02mUnited Airlines
Wed 10/156:29 amBWI - PDX
1 stop8h 12mUnited Airlines
Deal found 9/14$242
This CheapOair deal was found by Cheapflights users on 9/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:05 amPDX - BWI
1 stop8h 37mFrontier
Sun 10/59:59 pmBWI - PDX
2 stops40h 49mFrontier
Deal found 9/13$243
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2712:43 pmPDX - BWI
2 stops18h 37mFrontier
Fri 10/319:11 pmBWI - PDX
2 stops17h 45mFrontier
Deal found 9/14$244
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Fri 10/2410:34 amPDX - BWI
2 stops52h 10mFrontier
Mon 10/279:37 amBWI - PDX
2 stops29h 19mFrontier
Deal found 9/14$245
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:05 amPDX - BWI
1 stop8h 37mFrontier
Mon 9/296:27 pmBWI - PDX
1 stop8h 45mFrontier
Deal found 9/13$253
This CheapOair deal was found by Cheapflights users on 9/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1712:43 pmPDX - BWI
2 stops23h 44mFrontier
Mon 10/206:29 pmBWI - PDX
1 stop20h 19mFrontier
Deal found 9/13$254
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:05 amPDX - BWI
1 stop8h 37mFrontier
Thu 10/211:43 amBWI - PDX
2 stops15h 29mFrontier
Deal found 9/13$255
This Southwest deal was found by Cheapflights users on 9/14. 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.
Wed 10/226:30 pmPDX - BWI
1 stop7h 30mSouthwest
Mon 10/276:50 pmBWI - PDX
1 stop8h 25mSouthwest
Deal found 9/14$257
This Delta deal was found by Cheapflights users on 9/15. 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 10/107:15 pmPDX - BWI
1 stop7h 45mDelta
Sat 10/112:10 pmBWI - PDX
1 stop10h 58mDelta
Deal found 9/15$258
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/157:02 amPDX - IAD
1 stop9h 01mUnited Airlines
Wed 10/225:45 pmIAD - PDX
Nonstop5h 35mUnited Airlines
Deal found 9/15$283

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 September 15, 2025.
Use the filters below to find and compare flights from Portland to Washington, D.C. that are best for you.

Fly from

Portland

Fly to

Washington, D.C.

Route

Depart

Return

Price

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Wed 12/10

6:15 am-3:40 pm

1 stop6h 25m

Baltimore/Washington

Fri 12/12

7:50 am-3:05 pm

1 stop10h 15m

$257

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Sat 2/14

7:15 am-4:55 pm

1 stop6h 40m

Baltimore/Washington

Sun 2/22

7:35 am-2:30 pm

1 stop9h 55m

$257

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Tue 10/7

7:15 pm-6:00 am

1 stop7h 45m

Baltimore/Washington

Tue 10/14

12:26 pm-7:06 pm

1 stop9h 40m

$258

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Fri 11/14

11:15 pm-10:02 am

1 stop7h 47m

Baltimore/Washington

Sun 11/16

6:00 am-11:18 am

1 stop8h 18m

$258

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Tue 3/10

7:14 pm-6:07 am

1 stop7h 53m

Baltimore/Washington

Wed 3/11

12:15 pm-7:18 pm

1 stop10h 03m

$258

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Fri 10/10

7:15 pm-6:00 am

1 stop7h 45m

Baltimore/Washington

Sat 10/11

2:10 pm-10:08 pm

1 stop10h 58m

$258

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Wed 10/1

7:10 pm-6:00 am

1 stop7h 50m

Baltimore/Washington

Tue 10/7

6:00 am-11:01 am

1 stop8h 01m

$258

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Sat 10/25

5:05 am-5:00 pm

2 stops8h 55m

Baltimore/Washington

Tue 10/28

9:10 am-4:45 pm

1 stop10h 35m

$262

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Sat 10/18

10:50 am-11:18 pm

1 stop9h 28m

Baltimore/Washington

Tue 10/21

8:32 am-3:05 pm

1 stop9h 33m

$283

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Fri 10/17

12:40 am-11:13 am

1 stop7h 33m

Washington, D.C. Reagan-National

Tue 10/21

6:10 am-12:50 pm

1 stop9h 40m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 60 results
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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.

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Washington, D.C.. Price data was last updated on September 12, 2025.

The best time to book flights from Portland to Washington, D.C. is 16 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.

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

Currently, August is the cheapest month in which you can book a flight from Portland to Washington, D.C. (average of $292). Flying from Portland to Washington, D.C. in April is currently the most expensive (average of $337). 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 September 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland to Washington, D.C. at noon. If you’re flexible enough to do this you can expect to save up to 55% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Portland to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Portland to Washington, D.C.. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Portland to Washington, D.C. flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 15, 2025.

The most flights from PDX to WAS are scheduled on a Friday (6 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (4 on average).

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 September 15, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and United Airlines 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Spirit Airlines
6.3
Okay
8,015 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,172 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 5 daily outbound flights to Washington, D.C. from 8 different airlines.

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

    Southwest, Delta, and Alaska Airlines can get you from Portland to Washington, D.C. in just under 6h 25m. Your travel time can differ by up to 1h 28m. 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 Frontier. Our recent data shows that you can find tickets from as low as $145 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $220 and $298 round-trip. Frontier is currently priced 67% 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 $88 on United Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from $159 and Alaska Airlines from $159 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. Reagan-National, Portland - Washington, D.C. Dulles Intl 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 $168. While the most popular route (Portland - Washington, D.C. Reagan-National) can be booked for $197 on average, our data indicates $447 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, August is the cheapest month in which you can book a flight from Portland to Washington, D.C. (average of $292). Flying from Portland to Washington, D.C. in April is currently the most expensive (average of $337). 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
Woodbridge
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

Browse thousands of different options on Cheapflights for your next trip

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Top 8 airlines flying from Portland to Washington, D.C.

Discover the top 8 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$89Average$272FlexibilityNo cancel feeOn-time65%
FrontierCheapest$132Average$274FlexibilityNo cancel feeOn-time62%
DeltaCheapest$220Average$390FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$236Average$426FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$236Average$487FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$299Average$501FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$318Average$487FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$324Average$554FlexibilityNo cancel feeOn-time75%

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