How does KAYAK find such low prices on flights from District of Columbia to Porto?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from District of Columbia to Porto. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Porto?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from District of Columbia to Porto?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to District of Columbia with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to Porto?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$216 CHEAP FLIGHTS from District of Columbia to Porto

OPO

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

...and more

Travelers love KAYAK

41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$461

Typical prices: $619-$816

TAP AIR PORTUGAL

Tue 4/14Sun 4/19

IAD - OPO • 1 stop

Cheapest one-way

$216

Typical prices: $451-$795

SWISS

Wed 4/15

IAD - OPO • 1 stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Porto!

Flight Deals

Cheap Flights from District of Columbia to Porto

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from District of Columbia to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from District of Columbia to Porto

Tue, Apr 14 - Sun, Apr 19

5:05 pm - 9:00 am

IAD

OPO

10h 55m

1 stop

9:00 am - 3:05 pm

OPO

IAD

11h 05m

1 stop

$461TAP AIR PORTUGAL

Tue, Feb 24 - Tue, Mar 3

5:30 pm - 6:00 pm

IAD

OPO

19h 30m

1 stop

6:55 am - 2:35 pm

OPO

IAD

12h 40m

1 stop

$462TAP AIR PORTUGAL

Tue, Mar 24 - Tue, Mar 31

9:55 am - 12:05 pm

IAD

OPO

22h 10m

2 stops

6:00 am - 4:05 pm

OPO

IAD

15h 05m

1 stop

$466Multiple Airlines

Tue, Apr 14 - Fri, Apr 24

10:20 pm - 11:25 pm

IAD

OPO

20h 05m

1 stop

8:40 am - 8:29 pm

OPO

IAD

16h 49m

2 stops

$468Multiple Airlines

Wed, Apr 15 - Wed, Apr 22

11:05 am - 6:30 pm

DCA

OPO

26h 25m

2 stops

6:20 am - 6:03 pm

OPO

DCA

16h 43m

2 stops

$468Multiple Airlines

Wed, Feb 18 - Tue, Feb 24

10:30 pm - 3:05 pm

IAD

OPO

11h 35m

1 stop

10:15 pm - 9:00 pm

OPO

IAD

27h 45m

1 stop

$469TAP AIR PORTUGAL

Wed, Jan 28 - Tue, Feb 3

9:45 am - 1:15 pm

IAD

OPO

22h 30m

2 stops

6:00 am - 3:50 pm

OPO

IAD

14h 50m

1 stop

$470Multiple Airlines

Wed, Mar 18 - Thu, Apr 2

11:55 pm - 11:40 pm

IAD

OPO

19h 45m

1 stop

6:00 am - 4:05 pm

OPO

IAD

15h 05m

1 stop

$475Lufthansa

Tue, Apr 14 - Thu, May 7

8:20 pm - 7:55 am

IAD

OPO

30h 35m

1 stop

7:20 pm - 4:45 pm

OPO

IAD

26h 25m

1 stop

$476SWISS

Mon, Apr 13 - Tue, Apr 21

7:46 pm - 7:50 pm

DCA

OPO

19h 04m

2 stops

8:20 am - 10:17 pm

OPO

DCA

18h 57m

2 stops

$483British Airways

Useful Info

Low season	January
High season	July
Cheapest flight	$216

Best time to beat the crowds with an average 15% drop in price.

Most popular time to fly with an average 21% increase in price.

Flight from Washington Dulles Airport to Porto

How does KAYAK find such low prices on flights from District of Columbia to Porto?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from District of Columbia to Porto.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Porto?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from District of Columbia to Porto?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to District of Columbia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to Porto?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Lamego

Guimarães

Pinhao

Chaves

Esposende

Viseu

Espinho

Arcos de Valdevez

Ponte de Lima

Caminha

Baiao

Santa Maria da Feira

Mira

Penafiel

Amares

Curia

Everything you need to know for your flight to Porto

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Porto

Porto (OPO)

OPO

$216 Find Cheap Flights from District of Columbia to Porto

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

Everything you should know

Cheap Flights from District of Columbia to Porto

Recent round-trip flight deals from District of Columbia to Porto

Recent one-way flight deals from District of Columbia to Porto

Recent last minute flight deals from District of Columbia to Porto

Good to know

FAQs for booking flights from District of Columbia to Porto

How does KAYAK find such low prices on flights from District of Columbia to Porto?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from District of Columbia to Porto.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Porto?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from District of Columbia to Porto?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to District of Columbia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to Porto?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Porto?

Everything you need to know for your flight to Porto

Information on the airport you'll fly into in Porto

Cabin class types available on flights to District of Columbia

Complete your trip to Porto with a hotel stay or car rental

Find direct flights for Porto

Flights to other popular destinations

Flights from domestic origins to Porto

Choose which airport to fly into in Porto

Find deals for your return flight