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Cheap flights from Portland to Washington, D.C. from $169

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 12/4. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:30 am - 3:27 pmPDX-DCA
6h 57m1 stop
Delta Logo
5:31 pm - 12:15 amDCA-PDX
9h 44m2 stops
$292Delta
Find Deal
Wed, Dec 10 - Wed, Dec 17
United Airlines Logo
11:19 pm - 10:29 amPDX-DCA
8h 10m1 stop
United Airlines Logo
1:00 pm - 6:45 pmDCA-PDX
8h 45m1 stop
$297United Airlines
Find Deal
Tue, Dec 2 - Sat, Dec 6
Delta Logo
7:30 pm - 11:37 amPDX-DCA
13h 07m2 stops
Delta Logo
5:31 pm - 12:15 amDCA-PDX
9h 44m2 stops
$298Delta
Find Deal
Mon, Dec 8 - Wed, Dec 17
Frontier Logo
12:51 pm - 1:06 pmPDX-DCA
21h 15m1 stop
Frontier Logo
6:00 pm - 11:43 amDCA-PDX
20h 43m1 stop
$301Frontier
Find Deal
Sun, Dec 7 - Wed, Dec 17
Alaska Airlines Logo
9:30 pm - 4:09 pmPDX-DCA
15h 39m1 stop
Alaska Airlines Logo
5:09 pm - 8:11 pmDCA-PDX
6h 02mnonstop
$302Alaska Airlines
Find Deal
Fri, Jan 16 - Mon, Jan 19
Delta Logo
12:32 am - 11:09 amPDX-DCA
7h 37m1 stop
Delta Logo
6:10 am - 3:33 pmDCA-PDX
12h 23m2 stops
$307Delta
Find Deal
Mon, Dec 8 - Tue, Dec 16
Delta Logo
7:30 pm - 9:10 amPDX-DCA
10h 40m2 stops
Delta Logo
2:00 pm - 10:40 pmDCA-PDX
11h 40m2 stops
$308Delta
Find Deal
Fri, Dec 12 - Tue, Dec 16
Delta Logo
12:32 am - 11:09 amPDX-DCA
7h 37m1 stop
Delta Logo
4:55 pm - 10:40 pmDCA-PDX
8h 45m1 stop
$312Delta
Find Deal
Fri, Dec 12 - Tue, Dec 16
Frontier Logo
12:55 pm - 1:06 pmPDX-DCA
21h 11m1 stop
Frontier Logo
6:00 pm - 11:52 amDCA-PDX
20h 52m1 stop
$313Frontier
Find Deal
Fri, Dec 12 - Fri, Jan 2
Frontier Logo
12:51 pm - 1:06 pmPDX-DCA
21h 15m1 stop
Frontier Logo
6:00 pm - 3:00 pmDCA-PDX
24h 00m2 stops
$315Frontier
Find Deal
Sun, Dec 14 - Tue, Dec 23

Delta flights from Portland to Washington, D.C. Reagan-National Airport

Our best Delta deals on Portland to Washington, D.C. Reagan-National Airport flight tickets
Delta
Dec 8
PDX7:30 pmPortland
13h 07m
2 stops
DCA11:37 amWashington, D.C. Reagan-National
Dec 17
DCA5:31 pmWashington, D.C. Reagan-National
9h 44m
2 stops
PDX12:15 amPortland
$298
Find similar
Delta
Dec 8
PDX12:32 amPortland
7h 37m
1 stop
DCA11:09 amWashington, D.C. Reagan-National
Dec 13
DCA2:00 pmWashington, D.C. Reagan-National
11h 37m
2 stops
PDX10:37 pmPortland
$307
Find similar
Delta
Dec 12
PDX5:15 pmPortland
14h 54m
2 stops
DCA11:09 amWashington, D.C. Reagan-National
Dec 14
DCA6:10 amWashington, D.C. Reagan-National
12h 23m
2 stops
PDX3:33 pmPortland
$308
Find similar

American Airlines flights from Portland to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Portland to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
Dec 1
PDX12:59 amPortland
8h 05m
1 stop
DCA12:04 pmWashington, D.C. Reagan-National
Dec 6
DCA4:59 pmWashington, D.C. Reagan-National
9h 24m
1 stop
PDX11:23 pmPortland
$316
Find similar
American Airlines
Apr 9
PDX6:30 amPortland
6h 50m
1 stop
DCA4:20 pmWashington, D.C. Reagan-National
Apr 13
DCA5:59 pmWashington, D.C. Reagan-National
8h 38m
1 stop
PDX11:37 pmPortland
$357
Find similar
American Airlines
Nov 26
PDX8:35 amPortland
8h 25m
1 stop
DCA8:00 pmWashington, D.C. Reagan-National
Dec 2
DCA10:46 amWashington, D.C. Reagan-National
11h 24m
1 stop
PDX7:10 pmPortland
$437
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated November 14, 2025.
Use the filters below to find and compare flights from Portland to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Wed 12/10

5:30 am-3:27 pm

1 stop6h 57m

Washington, D.C. Reagan-National

Wed 12/17

5:31 pm-12:15 am

2 stops9h 44m

$292

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Tue 12/2

11:19 pm-10:29 am

1 stop8h 10m

Washington, D.C. Reagan-National

Sat 12/6

1:00 pm-6:45 pm

1 stop8h 45m

$297

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Mon 12/8

7:30 pm-11:37 am

2 stops13h 07m

Washington, D.C. Reagan-National

Wed 12/17

5:31 pm-12:15 am

2 stops9h 44m

$298

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Sun 12/7

12:51 pm-1:06 pm

1 stop21h 15m

Washington, D.C. Reagan-National

Wed 12/17

6:00 pm-11:43 am

1 stop20h 43m

$301

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Fri 1/16

9:30 pm-4:09 pm

1 stop15h 39m

Washington, D.C. Reagan-National

Mon 1/19

5:09 pm-8:11 pm

Nonstop6h 02m

$302

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Mon 12/8

12:32 am-11:09 am

1 stop7h 37m

Washington, D.C. Reagan-National

Tue 12/16

6:10 am-3:33 pm

2 stops12h 23m

$307

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Fri 12/12

7:30 pm-9:10 am

2 stops10h 40m

Washington, D.C. Reagan-National

Tue 12/16

2:00 pm-10:40 pm

2 stops11h 40m

$308

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Fri 12/12

12:32 am-11:09 am

1 stop7h 37m

Washington, D.C. Reagan-National

Tue 12/16

4:55 pm-10:40 pm

1 stop8h 45m

$312

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Fri 12/12

12:55 pm-1:06 pm

1 stop21h 11m

Washington, D.C. Reagan-National

Fri 1/2

6:00 pm-11:52 am

1 stop20h 52m

$313

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Sun 12/14

12:51 pm-1:06 pm

1 stop21h 15m

Washington, D.C. Reagan-National

Tue 12/23

6:00 pm-3:00 pm

2 stops24h 00m

$315

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Portland to Washington, D.C. Reagan-National 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. Reagan-National Airport?

The month of August is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Portland, with most prices found around $399. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $416.

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

The cheapest day to depart from Portland to Washington, D.C. Reagan-National Airport is on a Wednesday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Wednesday will often find tickets for as low as $497. Flights from Portland to Washington, D.C. Reagan-National Airport on a Monday will generally be more expensive and average around $748. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Portland to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the afternoon. Our users have found flights to Washington, D.C. Reagan-National Airport in the afternoon for as low as $229. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the morning when prices are around $558.

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

Fly from Portland to Washington, D.C. Reagan-National for the best Portland - Washington, D.C. Reagan-National flight prices

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $479 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Portland for as low as $395 on momondo.

What cabin class options are available on Portland to Washington, D.C. Reagan-National flights?

There are 4 cabin classes available to choose from on Portland to Washington, D.C. Reagan-National 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. Reagan-National Airport flights?

No. A direct flight is the cheapest option for a flight between Portland to Washington, D.C. Reagan-National Airport.

How have Portland to Washington, D.C. Reagan-National Airport flight prices changed over time?

As of November 2025, prices for Portland to Washington, D.C. Reagan-National Airport flights are approximately 105% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Washington, D.C. Reagan-National Airport 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. Reagan-National Airport (PDX to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Washington, D.C. Reagan-National Airport

Best Price Found

$344

Fastest flight time

4h 55m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from Portland in the past 72 hours is $344. The best round-trip flight deal from Portland to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $377.
The fastest flight from Portland to Washington, D.C. Reagan-National Airport takes 4h 55m
Direct flights go from Portland to Washington, D.C. Reagan-National Airport every day.
Search flight deals

  • How far is Portland to Washington, D.C. Reagan-National by plane?

    A flight from Portland to Washington, D.C. Reagan-National will travel around 2347.1 mi. In terms of flight time, this usually takes a little over 4h 55m.

  • When did momondo last update prices for flights from Portland Airport to Washington, D.C. Reagan-National Airport?

    Prices for flights from Portland Airport to Washington, D.C. Reagan-National Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Washington, D.C. Reagan-National Airport?

  • How old do you have to be to fly from Portland Airport to Washington, D.C. Reagan-National Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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. Reagan-National Airport?

  • What is the most popular airline from Portland to Washington, D.C. Reagan-National Airport?

Best airlines flying from Portland to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Portland to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $150Free CancellationRating
5.8
3,107 reviews
Search Frontier flights
DeltaPriceFrom $220Free CancellationRating
7.9
8,011 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $299Free CancellationRating
7.8
2,809 reviews
Search Hawaiian Airlines flights
American AirlinesPriceFrom $316Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
United AirlinesPriceFrom $337Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $337Free CancellationRating
8.0
11,290 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $391Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

  • Alaska Airlines Flights From Portland to Washington, D.C. Reagan-National Airport

    Alaska Airlines flies from Portland to Washington, D.C. Reagan-National Airport around 6 times per week, with 11,290 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Portland to Washington, D.C. Reagan-National Airport in the last 72 hours was $337 (round-trip), much lower than the average airfare cost of $589 for Alaska Airlines flights on this route.

  • Hawaiian Airlines Flights From Portland to Washington, D.C. Reagan-National Airport

    The best Hawaiian Airlines deal for Portland to Washington, D.C. Reagan-National Airport flight tickets found on momondo in the last 72 hours was $299, round-trip. It should be noted that an average Hawaiian Airlines flight deal for this route in this time was higher, at $512 round-trip. Hawaiian Airlines operates 6 flights out of Portland into Washington, D.C. Reagan-National Airport in an average week, so prices vary by time and availability. 2,809 Hawaiian Airlines reviews by users on momondo have scored the airline at 7.8/10.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie
Linthicum Heights
Springfield

Why 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?

All flight searches from Portland to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Washington, D.C.?

momondo helps you find the best flight between Portland and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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