What is the cheapest airline that flies from Portland to Washington, D.C.?

Southwest, United Airlines, and Delta are the most popular carriers operating from Portland to Washington, D.C.

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 23 per week as of May 2026. The most frequent departure day is Thu, with 17% of weekly flights leaving on this day.

Which airport is the most popular layover for flights between Portland and Washington, D.C.?

Denver (DEN) was the most common stop: 57% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from Portland to Washington, D.C. on average per day?

3 flights are operational daily from Portland to Washington, D.C. as of May 2026. The most popular departure time for this route is 8:00AM, with 84% of flights per day taking off at noon.

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 38% 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.

Which layover airport offers the lowest fares from Portland to Washington, D.C.?

Flights via Denver (DEN) offer the lowest average round-trip price of $286.

Which layover airport has the shortest connection time from Portland to Washington, D.C.?

Chicago (ORD) has the shortest average layover time for this route: 0h 43m.

Which layover airport has the shortest travel time from Portland to Washington, D.C.?

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 6h 25m.

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 May 2026, 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.

$102 Cheap Flights from Portland to Washington, D.C. in 2026

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Find the cheapest flights from Portland to Washington, D.C.

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:45 pm - 6:40 am

PDX

BWI

4h 55mnonstop

8:10 am - 10:40 am

BWI

PDX

5h 30mnonstop

$203Southwest

Wed, Sep 2 - Tue, Sep 8

6:25 pm - 6:40 am

PDX

BWI

9h 15m

1 stop

8:10 am - 10:40 am

BWI

PDX

5h 30mnonstop

$213Southwest

Tue, Sep 15 - Wed, Sep 16

6:35 am - 7:27 pm

PDX

BWI

9h 52m

1 stop

6:29 pm - 10:50 pm

BWI

PDX

7h 21m

1 stop

$223American Airlines

Wed, Sep 9 - Wed, Sep 16

11:40 pm - 9:17 am

PDX

BWI

6h 37m

1 stop

5:32 pm - 11:53 pm

BWI

PDX

9h 21m

1 stop

$237United Airlines

Tue, Jun 2 - Tue, Jun 9

7:30 am - 3:34 pm

PDX

BWI

5h 04mnonstop

4:34 pm - 7:11 pm

BWI

PDX

5h 37mnonstop

$248Alaska Airlines

Tue, Sep 8 - Tue, Sep 15

11:58 am - 11:46 pm

PDX

BWI

8h 48m

1 stop

5:26 pm - 10:02 pm

BWI

PDX

7h 36m

1 stop

$250Delta

Wed, Jun 3 - Sat, Jun 6

12:35 pm - 12:59 pm

PDX

DCA

21h 24m

1 stop

7:00 am - 4:46 pm

DCA

PDX

12h 46m

1 stop

$376Frontier

Fri, May 15 - Thu, Jun 4

12:26 pm - 4:59 pm

PDX

DCA

25h 33m

1 stop

6:00 pm - 4:53 pm

DCA

PDX

25h 53m

1 stop

$379Frontier

Mon, Jul 6 - Sat, Aug 15

5:00 am - 5:11 pm

PDX

IAD

9h 11m

1 stop

9:30 am - 4:55 pm

IAD

PDX

10h 25m

1 stop

$388Alaska Airlines

Thu, Aug 13 - Tue, Aug 18

11:21 am - 10:44 pm

PDX

DCA

8h 23m

1 stop

7:00 am - 12:54 pm

DCA

PDX

8h 54m

1 stop

$388Delta

Sun, May 24 - Sun, May 31

American Airlines flights from Portland to Washington, D.C.

Our best American Airlines deals on Portland to Washington, D.C. flight tickets

American Airlines

Sep 9

PDX6:35 amPortland

9h 52m

1 stop

BWI7:27 pmBaltimore/Washington

Sep 16

BWI6:29 pmBaltimore/Washington

7h 21m

1 stop

PDX10:50 pmPortland

$223

American Airlines

Jul 15

PDX9:47 pmPortland

8h 39m

1 stop

BWI9:26 amBaltimore/Washington

Jul 29

BWI7:16 pmBaltimore/Washington

8h 39m

1 stop

PDX12:55 amPortland

$243

American Airlines

May 29

PDX5:49 amPortland

8h 58m

1 stop

BWI5:47 pmBaltimore/Washington

Jun 5

BWI7:11 pmBaltimore/Washington

8h 39m

1 stop

PDX12:50 amPortland

$257

Sun Country Air flights from Portland to Washington, D.C.

Our best Sun Country Air deals on Portland to Washington, D.C. flight tickets

Sun Country Air

May 7

PDX6:30 pmPortland

14h 09m

1 stop

IAD11:39 amWashington, D.C. Dulles Intl

May 10

IAD8:00 amWashington, D.C. Dulles Intl

27h 32m

1 stop

PDX8:32 amPortland

$525

Sun Country Air

May 7

PDX6:30 pmPortland

14h 09m

1 stop

IAD11:39 amWashington, D.C. Dulles Intl

May 10

IAD8:00 amWashington, D.C. Dulles Intl

27h 32m

1 stop

PDX8:32 amPortland

$575

Sun Country Air

May 7

PDX6:30 pmPortland

14h 09m

1 stop

IAD11:39 amWashington, D.C. Dulles Intl

May 10

IAD8:00 amWashington, D.C. Dulles Intl

27h 32m

1 stop

PDX8:32 amPortland

$589

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Wed 9/2

10:45 pm-6:40 am

Nonstop4h 55m

Baltimore/Washington

Tue 9/8

8:10 am-10:40 am

Nonstop5h 30m

$203

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Tue 9/15

6:25 pm-6:40 am

1 stop9h 15m

Baltimore/Washington

Wed 9/16

8:10 am-10:40 am

Nonstop5h 30m

$213

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Wed 9/9

6:35 am-7:27 pm

1 stop9h 52m

Baltimore/Washington

Wed 9/16

6:29 pm-10:50 pm

1 stop7h 21m

$223

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Tue 6/2

11:40 pm-9:17 am

1 stop6h 37m

Baltimore/Washington

Tue 6/9

5:32 pm-11:53 pm

1 stop9h 21m

$237

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Tue 9/8

7:30 am-3:34 pm

Nonstop5h 04m

Baltimore/Washington

Tue 9/15

4:34 pm-7:11 pm

Nonstop5h 37m

$248

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Wed 6/3

11:58 am-11:46 pm

1 stop8h 48m

Baltimore/Washington

Sat 6/6

5:26 pm-10:02 pm

1 stop7h 36m

$250

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Fri 5/15

12:35 pm-12:59 pm

1 stop21h 24m

Washington, D.C. Reagan-National

Thu 6/4

7:00 am-4:46 pm

1 stop12h 46m

$376

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Mon 7/6

12:26 pm-4:59 pm

1 stop25h 33m

Washington, D.C. Reagan-National

Sat 8/15

6:00 pm-4:53 pm

1 stop25h 53m

$379

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Thu 8/13

5:00 am-5:11 pm

1 stop9h 11m

Washington, D.C. Dulles Intl

Tue 8/18

9:30 am-4:55 pm

1 stop10h 25m

$388

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Sun 5/24

11:21 am-10:44 pm

1 stop8h 23m

Washington, D.C. Reagan-National

Sun 5/31

7:00 am-12:54 pm

1 stop8h 54m

$388

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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

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between Portland and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The month of May is, on average, the cheapest month to fly to Washington, D.C. from Portland, with most prices found around $87. If you’re not able to fly to Washington, D.C. in May, then April is your next best option. Flight prices from Portland to Washington, D.C. during April average around $89.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $479. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Washington, D.C. for around $657.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the evening is the cheapest time of day to fly from Portland to Washington, D.C. when you can find flight prices for as low as $497. Flying to Washington, D.C. in the evening 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 $551. 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 from Portland 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 $424 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 $328 on momondo.

Can stopping save me money on Portland to Washington, D.C. flights?

You could potentially save up to 3% 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 May 2026, prices for Portland to Washington, D.C. flights are approximately 46% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

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	$208
Fastest flight time	4h 48m
Direct flights	Every day
Airports in Washington, D.C.	2 airports

The best one-way flight to Washington, D.C. from Portland in the past 72 hours is $208. The best round-trip flight deal from Portland to Washington, D.C. found on momondo in the last 72 hours is $373.

The fastest flight from Portland to Washington, D.C. takes 4h 48m

Direct flights go from Portland to Washington, D.C. every day.

There are 2 airports in Washington, D.C.. From Portland there are direct flights to Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD).

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Frequently asked questions about flying from Portland to Washington, D.C.

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 48m.
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 May 2026, 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 40.70% of all bookings. The subsequent popular models are Boeing 737 MAX 9 at 33.41%, Boeing 737-900 at 5.94%, and Boeing 737 MAX 8 at 5.72%.
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 40% of the total bookings. Other popular airlines include Alaska Airlines with 35%, Delta with 11%, and Frontier with 5%.

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
Frontier	PriceFrom $111	Free Cancellation	Rating 5.6 2,968 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $128	Free Cancellation	Rating 6.3 8,633 reviews	Search Spirit Airlines flights
Delta	PriceFrom $138	Free Cancellation	Rating 7.9 8,462 reviews	Search Delta flights
Southwest	PriceFrom $183	Free Cancellation	Rating 8.0 4,311 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $188	Free Cancellation	Rating 7.9 12,322 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $229	Free Cancellation	Rating 7.1 11,674 reviews	Search American Airlines flights
United Airlines	PriceFrom $249	Free Cancellation	Rating 7.4 9,682 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $317	Free Cancellation	Rating 7.8 2,837 reviews	Search Hawaiian Airlines flights

Alaska Airlines Flights From Portland to Washington, D.C.
Alaska Airlines flight deals from Portland to Washington, D.C. start from $188 round-trip. Over the 6 Alaska Airlines flights for this route in a normal week, average airfare is usually $489 round-trip - but some users have found much cheaper deals with momondo.
United Airlines Flights From Portland to Washington, D.C.
Another popular option for Portland to Washington, D.C. flights is United Airlines (7.4/10, 9,682 ratings). United Airlines flies from Portland to Washington, D.C. around 7 times per week, with deals starting from $249 round-trip and rising to an average price of around $419.

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Colonial Beach

Gaithersburg

Towson

Fredericksburg

Silver Spring

Rockville

Manassas

Linthicum Heights

Tysons

Bethesda

Springfield

Fairfax

College Park

Why 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.

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Cheap flights from Portland to Washington, D.C. from $102

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 6/6. 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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American Airlines flights from Portland to Washington, D.C.

Our best American Airlines deals on Portland to Washington, D.C. flight tickets

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How to get the cheapest flight ticket from Portland to Washington, D.C.

What is the typical price of a round-trip flight between Portland and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

What is the cheapest Portland to Washington, D.C. flight route?

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

Can stopping save me money on Portland to Washington, D.C. flights?

How have Portland to Washington, D.C. flight prices changed over time?

What is the cheapest airline that flies from Portland to Washington, D.C.?

What airlines fly to Washington, D.C.?

Which airport is the most popular layover for flights between Portland and Washington, D.C.?

Which layover airport offers the lowest fares from Portland to Washington, D.C.?

Which layover airport has the shortest travel time from Portland to Washington, D.C.?

Which layover airport has the shortest connection time from Portland to Washington, D.C.?

How many flights depart from Portland to Washington, D.C. on average per day?

How many flights depart from Portland to Washington, D.C. on average per week?

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

Fastest flight time

Direct flights

Airports in Washington, D.C.

Frequently asked questions about flying from Portland to Washington, D.C.

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

Alaska Airlines Flights From Portland to Washington, D.C.

United Airlines Flights From Portland to Washington, D.C.

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

Why use momondo?

An easier way to manage your Washington, D.C. trip

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Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

Fly your favorite airline to Washington, D.C.

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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