How does KAYAK find such low prices on flights from Washington 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 Washington 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 Washington to Porto?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Washington 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 Washington 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 Washington 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 Washington 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 Washington 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>

$443 CHEAP FLIGHTS from Washington to Porto

OPO

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

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41,299,237 searches in the past 7 days on KAYAK

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Cheapest round-trip

$483

Typical prices: $694-$1,112

KLM

Mon 12/1Tue 12/9

PDX - OPO • 1 stop

Cheapest one-way

$443

Typical prices: $667-$677

United Airlines

Thu 11/27

PDX - 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 Washington to Porto

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington 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 Washington to Porto

Mon, Dec 1 - Tue, Dec 9

1:25 pm - 3:25 pmPDX-OPO

18h 00m1 stop

4:10 pm - 11:25 amOPO-PDX

27h 15m1 stop

$483KLM

Find Deal

Sun, Feb 8 - Wed, Feb 25

6:15 am - 10:30 amSEA-OPO

20h 15m2 stops

6:00 am - 8:32 pmOPO-SEA

22h 32m2 stops

$492Delta

Find Deal

Sun, Feb 8 - Wed, Feb 25

3:05 pm - 10:25 pmSEA-OPO

23h 20m1 stop

6:00 am - 10:05 pmOPO-SEA

24h 05m2 stops

$493Delta

Find Deal

Mon, Dec 1 - Tue, Dec 9

10:05 am - 2:55 pmPDX-OPO

20h 50m2 stops

12:30 pm - 12:37 amOPO-PDX

20h 07m2 stops

$503Multiple Airlines

Find Deal

Mon, Dec 1 - Tue, Dec 9

11:59 pm - 2:45 pmPDX-OPO

30h 46m2 stops

6:00 am - 6:45 pmOPO-PDX

44h 45m3 stops

$514United Airlines

Find Deal

Thu, Nov 27 - Fri, Dec 12

6:20 am - 9:30 amSEA-OPO

19h 10m1 stop

6:30 am - 1:20 pmOPO-SEA

14h 50m1 stop

$521Multiple Airlines

Find Deal

Fri, Nov 28 - Fri, Dec 12

8:20 am - 9:30 amPDX-OPO

17h 10m2 stops

6:00 am - 6:45 pmOPO-PDX

20h 45m2 stops

$537United Airlines

Find Deal

Tue, Nov 25 - Tue, Dec 2

3:40 pm - 11:40 amSEA-OPO

36h 00m2 stops

4:15 pm - 7:16 pmOPO-SEA

35h 01m2 stops

$539Lufthansa

Find Deal

Tue, Nov 25 - Tue, Dec 2

2:00 pm - 2:45 pmSEA-OPO

16h 45m1 stop

1:45 pm - 1:20 pmOPO-SEA

31h 35m1 stop

$546Lufthansa

Find Deal

Sun, Feb 22 - Fri, Mar 20

7:15 am - 11:45 amSEA-OPO

20h 30m2 stops

8:20 am - 9:53 pmOPO-SEA

20h 33m2 stops

$583American Airlines

Find Deal

Useful Info

Low season	February
High season	July
Cheapest flight	$443

Best time to beat the crowds with an average 17% drop in price.

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

Flight from Portland to Porto

How does KAYAK find such low prices on flights from Washington 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 Washington to Porto.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Porto?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Washington 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 Washington 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 Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington 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 Washington 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

Mira

Penafiel

Santa Maria da Feira

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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

OPO

$443 Find Cheap Flights from Washington to Porto

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

Everything you should know

Cheap Flights from Washington to Porto

Recent round-trip flight deals from Washington to Porto

Recent one-way flight deals from Washington to Porto

Good to know

FAQs for booking flights from Washington to Porto

How does KAYAK find such low prices on flights from Washington 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 Washington to Porto.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Washington 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 Washington 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 Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington 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 Washington 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 Washington

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