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Cheap flights from Portland to District of Columbia from $154

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 District of Columbia departing on 2/11. 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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0 bags

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Find the cheapest flights from Portland to District of Columbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
1:36 pm - 4:06 pm
PDX
-
DCA
23h 30m1 stop
Alaska Airlines Logo
5:06 pm - 8:13 pm
DCA
-
PDX
6h 07mnonstop
$290Alaska Airlines
Tue, Feb 17 - Tue, Feb 24
Alaska Airlines Logo
8:30 am - 9:59 pm
PDX
-
DCA
10h 29m1 stop
Alaska Airlines Logo
5:06 pm - 8:13 pm
DCA
-
PDX
6h 07mnonstop
$291Alaska Airlines
Thu, Mar 5 - Tue, Mar 10
Delta Logo
7:10 am - 11:23 pm
PDX
-
DCA
13h 13m2 stops
Delta Logo
4:44 pm - 12:17 am
DCA
-
PDX
10h 33m1 stop
$292Delta
Thu, Jan 8 - Sun, Jan 11
Delta Logo
7:10 am - 11:48 pm
PDX
-
IAD
13h 38m2 stops
Delta Logo
7:30 am - 8:59 pm
IAD
-
PDX
16h 29m1 stop
$292Delta
Wed, Jan 7 - Mon, Jan 12
American Airlines Logo
10:15 pm - 10:58 am
PDX
-
IAD
9h 43m1 stop
American Airlines Logo
1:08 pm - 8:24 pm
IAD
-
PDX
10h 16m1 stop
$296American Airlines
Tue, Jan 6 - Tue, Jan 20
United Airlines Logo
11:05 pm - 12:24 pm
PDX
-
DCA
10h 19m1 stop
United Airlines Logo
2:00 pm - 6:56 pm
DCA
-
PDX
7h 56m1 stop
$297United Airlines
Fri, Jan 9 - Sat, Jan 10
American Airlines Logo
6:00 am - 4:31 pm
PDX
-
IAD
7h 31m1 stop
American Airlines Logo
6:00 am - 1:17 pm
IAD
-
PDX
10h 17m1 stop
$297American Airlines
Sat, Jan 10 - Sat, Jan 17
United Airlines Logo
11:59 pm - 11:46 am
PDX
-
IAD
8h 47m1 stop
United Airlines Logo
1:05 pm - 6:56 pm
IAD
-
PDX
8h 51m1 stop
$301United Airlines
Fri, Jan 9 - Sat, Jan 10
Frontier Logo
12:05 pm - 4:59 pm
PDX
-
DCA
25h 54m1 stop
Frontier Logo
6:00 pm - 5:39 pm
DCA
-
PDX
26h 39m2 stops
$305Frontier
Thu, Jan 8 - Sun, Jan 11
Frontier Logo
2:19 pm - 1:01 pm
PDX
-
DCA
19h 42m2 stops
Frontier Logo
6:00 pm - 11:15 am
DCA
-
PDX
20h 15m1 stop
$306Frontier
Sun, Jan 4 - Sat, Jan 10

American Airlines flights from Portland to District of Columbia

Our best American Airlines deals on Portland to District of Columbia flight tickets
American Airlines
Jan 6
PDX10:15 pmPortland
9h 43m
1 stop
IAD10:58 amWashington, D.C. Dulles Intl
Jan 20
IAD1:08 pmWashington, D.C. Dulles Intl
10h 16m
1 stop
PDX8:24 pmPortland
$296
Find similar
American Airlines
Jan 10
PDX6:00 amPortland
7h 31m
1 stop
IAD4:31 pmWashington, D.C. Dulles Intl
Jan 17
IAD6:00 amWashington, D.C. Dulles Intl
10h 17m
1 stop
PDX1:17 pmPortland
$297
Find similar
American Airlines
Jan 6
PDX10:15 pmPortland
9h 43m
1 stop
IAD10:58 amWashington, D.C. Dulles Intl
Jan 20
IAD11:34 amWashington, D.C. Dulles Intl
11h 53m
2 stops
PDX8:27 pmPortland
$302
Find similar

Southwest flights from Portland to District of Columbia

Our best Southwest deals on Portland to District of Columbia flight tickets
Southwest
Feb 22
PDX6:45 amPortland
9h 40m
1 stop
DCA7:25 pmWashington, D.C. Reagan-National
Feb 25
DCA1:00 pmWashington, D.C. Reagan-National
12h 15m
2 stops
PDX10:15 pmPortland
$312
Find similar
Southwest
Feb 21
PDX5:10 amPortland
13h 35m
2 stops
IAD9:45 pmWashington, D.C. Dulles Intl
Feb 24
IAD9:05 amWashington, D.C. Dulles Intl
16h 00m
2 stops
PDX10:05 pmPortland
$313
Find similar
Southwest
Jan 10
PDX9:55 amPortland
9h 15m
2 stops
IAD10:10 pmWashington, D.C. Dulles Intl
Jan 17
IAD7:00 amWashington, D.C. Dulles Intl
10h 35m
1 stop
PDX2:35 pmPortland
$342
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to District of Columbia 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 December 18, 2025.
Use the filters below to find and compare flights from Portland to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Tue 2/17

1:36 pm-4:06 pm

1 stop23h 30m

Washington, D.C. Reagan-National

Tue 2/24

5:06 pm-8:13 pm

Nonstop6h 07m

$290

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Thu 3/5

8:30 am-9:59 pm

1 stop10h 29m

Washington, D.C. Reagan-National

Tue 3/10

5:06 pm-8:13 pm

Nonstop6h 07m

$291

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Thu 1/8

7:10 am-11:23 pm

2 stops13h 13m

Washington, D.C. Reagan-National

Sun 1/11

4:44 pm-12:17 am

1 stop10h 33m

$292

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Wed 1/7

7:10 am-11:48 pm

2 stops13h 38m

Washington, D.C. Dulles Intl

Mon 1/12

7:30 am-8:59 pm

1 stop16h 29m

$292

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Tue 1/6

10:15 pm-10:58 am

1 stop9h 43m

Washington, D.C. Dulles Intl

Tue 1/20

1:08 pm-8:24 pm

1 stop10h 16m

$296

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Fri 1/9

11:05 pm-12:24 pm

1 stop10h 19m

Washington, D.C. Reagan-National

Sat 1/10

2:00 pm-6:56 pm

1 stop7h 56m

$297

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Sat 1/10

6:00 am-4:31 pm

1 stop7h 31m

Washington, D.C. Dulles Intl

Sat 1/17

6:00 am-1:17 pm

1 stop10h 17m

$297

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Fri 1/9

11:59 pm-11:46 am

1 stop8h 47m

Washington, D.C. Dulles Intl

Sat 1/10

1:05 pm-6:56 pm

1 stop8h 51m

$301

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Thu 1/8

12:05 pm-4:59 pm

1 stop25h 54m

Washington, D.C. Reagan-National

Sun 1/11

6:00 pm-5:39 pm

2 stops26h 39m

$305

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Sun 1/4

2:19 pm-1:01 pm

2 stops19h 42m

Washington, D.C. Reagan-National

Sat 1/10

6:00 pm-11:15 am

1 stop20h 15m

$306

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 District of Columbia from

How to get the cheapest flight ticket from Portland to District of Columbia

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 District of Columbia?

In general, January is the cheapest month to fly from Portland to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $344. If you don’t want to visit District of Columbia in January, then you should wait until February to fly from Portland, when ticket prices are also cheap, with an average price of $345.

What is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Wednesday when prices can be found for as low as $490. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $664.

What is the cheapest time of day to depart on your flight to District of Columbia?

Flying to District of Columbia from Portland in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $269 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly in the morning, with an average ticket price of $557. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Portland to District of Columbia flight route?

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

How far in advance should I book a flight to District of Columbia?

You are more likely to see cheaper flights to District of Columbia from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $447 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from Portland for as low as $370 on momondo.

What cabin class options are available on Portland to District of Columbia flights?

There are 4 cabin classes available to choose from on Portland to District of Columbia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Portland to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to District of Columbia

Best Price Found

$178

Fastest flight time

4h 48m

Direct flights

Every day

Airports in District of Columbia

2 airports
The best one-way flight to District of Columbia from Portland in the past 72 hours is $178. The best round-trip flight deal from Portland to District of Columbia found on momondo in the last 72 hours is $377.
The fastest flight from Portland to District of Columbia takes 4h 48m
Direct flights go from Portland to District of Columbia every day.
There are 2 airports in District of Columbia. From Portland there are direct flights to Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD).
Search flight deals

  • When did momondo last update prices for flights from Portland Airport to District of Columbia?

    Prices for flights from Portland Airport to District of Columbia are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to District of Columbia?

  • How old do you have to be to fly from Portland Airport to District of Columbia?

    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 District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The travel and health documents required for your trip to District of Columbia 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 District of Columbia. 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 District of Columbia?

Best airlines flying from Portland to District of Columbia

Compare and see reviews for airlines that fly from Portland to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $89Free CancellationRating
6.3
8,189 reviews
Search Spirit Airlines flights
FrontierPriceFrom $132Free CancellationRating
5.8
3,081 reviews
Search Frontier flights
DeltaPriceFrom $188Free CancellationRating
7.9
8,009 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $242Free CancellationRating
7.4
9,093 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $257Free CancellationRating
8.0
11,479 reviews
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom $299Free CancellationRating
7.8
2,820 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $302Free CancellationRating
7.9
4,250 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to District of Columbia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to District of Columbia for you.

Can I find flights from Portland to District of Columbia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to District of Columbia from Portland with this policy.

How can momondo help me find flights from Portland to District of Columbia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to District of Columbia from Portland.

I’m not ready to book a flight from Portland to District of Columbia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to District of Columbia from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your District of Columbia trip

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