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>

$244 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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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$490

Overall average: $693

Multiple Airlines

Mon 3/9Mon 3/16

IAD - OPO • 2 stops

Cheapest one-way

$244

Typical prices: $293-$558

Air Canada

Wed 8/5

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

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

Mon, Mar 9 - Mon, Mar 16

6:30 pm - 5:00 pm

IAD

OPO

18h 30m

2 stops

1:15 pm - 3:35 pm

OPO

IAD

30h 20m

2 stops

$490Multiple Airlines

Mon, Apr 13 - Sun, Apr 19

8:20 pm - 11:00 am

IAD

OPO

33h 40m

1 stop

6:20 pm - 4:50 pm

OPO

IAD

27h 30m

1 stop

$503Scandinavian Airlines

Sun, Apr 12 - Wed, Apr 29

5:40 pm - 9:00 am

IAD

OPO

10h 20m

1 stop

10:25 pm - 3:10 pm

OPO

IAD

21h 45m

1 stop

$509TAP AIR PORTUGAL

Mon, Mar 9 - Mon, Mar 16

6:30 pm - 5:00 pm

IAD

OPO

18h 30m

2 stops

1:15 pm - 3:35 pm

OPO

IAD

30h 20m

2 stops

$513Multiple Airlines

Mon, Mar 9 - Mon, Mar 16

6:30 pm - 1:05 pm

IAD

OPO

14h 35m

1 stop

8:00 pm - 3:35 pm

OPO

IAD

23h 35m

1 stop

$514TAP AIR PORTUGAL

Wed, Apr 8 - Wed, Apr 15

10:35 pm - 5:00 pm

IAD

OPO

13h 25m

1 stop

10:25 pm - 3:10 pm

OPO

IAD

21h 45m

1 stop

$518TAP AIR PORTUGAL

Mon, Apr 13 - Mon, Apr 20

10:35 pm - 8:25 pm

IAD

OPO

16h 50m

1 stop

7:00 am - 8:35 pm

OPO

IAD

18h 35m

1 stop

$529TAP AIR PORTUGAL

Tue, Mar 24 - Wed, Apr 1

8:10 pm - 9:30 am

DCA

OPO

9h 20m

1 stop

6:00 am - 8:15 pm

OPO

DCA

19h 15m

2 stops

$583United Airlines

Tue, Apr 7 - Wed, Apr 15

5:05 pm - 3:25 pm

DCA

OPO

17h 20m

2 stops

5:00 am - 10:22 pm

OPO

DCA

22h 22m

2 stops

$589Delta

Tue, Apr 7 - Wed, Apr 15

6:30 pm - 3:25 pm

DCA

OPO

15h 55m

2 stops

5:00 am - 6:59 pm

OPO

DCA

18h 59m

2 stops

$615Delta

Useful Info

Low season	January
High season	July
Cheapest flight	$244

Best time to beat the crowds with an average 24% drop in price.

Most popular time to fly with an average 25% 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

Baiao

Caminha

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

$244 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