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>

$250 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

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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

Overall average: $724

TAP AIR PORTUGAL

Sun 1/18Wed 1/28

IAD - OPO • 1 stop

Cheapest one-way

$250

Typical prices: $472-$783

Multiple Airlines

Wed 4/8

IAD - OPO • 2 stops

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

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

Sun, Jan 18 - Wed, Jan 28

10:30 pm - 10:00 pm

IAD

OPO

18h 30m1 stop

10:55 am - 9:00 pm

OPO

IAD

15h 05m1 stop

$461TAP AIR PORTUGAL

Sat, Jan 17 - Sat, Jan 24

5:30 pm - 9:50 am

IAD

OPO

11h 20m1 stop

4:55 pm - 9:00 pm

OPO

IAD

33h 05m1 stop

$468TAP AIR PORTUGAL

Tue, Feb 3 - Wed, Feb 25

5:30 pm - 11:00 am

IAD

OPO

12h 30m1 stop

8:00 pm - 3:15 pm

OPO

IAD

24h 15m1 stop

$474TAP AIR PORTUGAL

Wed, Jan 28 - Wed, Feb 4

10:30 pm - 5:00 pm

IAD

OPO

13h 30m1 stop

10:55 am - 9:00 pm

OPO

IAD

15h 05m1 stop

$475TAP AIR PORTUGAL

Tue, Apr 21 - Wed, Apr 29

1:25 pm - 7:40 am

DCA

OPO

13h 15m2 stops

12:25 pm - 10:17 pm

OPO

DCA

14h 52m2 stops

$545Multiple Airlines

Tue, Mar 31 - Wed, Apr 15

6:00 pm - 3:25 pm

DCA

OPO

16h 25m2 stops

5:00 am - 6:33 pm

OPO

DCA

18h 33m2 stops

$557Delta

Tue, Apr 21 - Tue, Sep 15

1:25 pm - 7:40 am

DCA

OPO

13h 15m2 stops

8:20 am - 11:02 pm

OPO

DCA

19h 42m2 stops

$575American Airlines

Wed, Feb 4 - Wed, Feb 11

11:05 am - 1:15 pm

DCA

OPO

21h 10m2 stops

6:00 am - 10:35 pm

OPO

DCA

21h 35m2 stops

$585Air Canada

Tue, Feb 3 - Wed, Feb 25

4:15 pm - 11:15 am

DCA

OPO

38h 00m2 stops

6:00 am - 8:55 am

OPO

DCA

31h 55m2 stops

$586Air Canada

Tue, Feb 24 - Tue, Mar 3

9:54 am - 10:30 am

DCA

OPO

19h 36m2 stops

5:00 am - 6:29 pm

OPO

DCA

18h 29m2 stops

$588Delta

Useful Info

Low season	November
High season	July
Cheapest flight	$250

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

Arcos de Valdevez

Espinho

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

$248 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

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