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>

$251 CHEAP FLIGHTS from Washington to Porto

OPO

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Cheap Flights from Washington to Porto

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Round-trip

One-way

Last minute

Recent round-trip flight deals from Washington to Porto

dom., abr. 19 - vie., may. 1

6:40 pm - 10:00 pm

SEA

OPO

19h 20m

1 stop

5:55 am - 5:39 pm

OPO

SEA

19h 44m

1 stop

$610Air France

mar., ago. 18 - jue., ago. 27

7:30 am - 6:55 am

SEA

OPO

15h 25m

1 stop

11:50 am - 9:21 pm

OPO

SEA

41h 31m

3 stops

$625United Airlines

lun., ago. 10 - mar., ago. 25

10:40 pm - 7:00 am

SEA

OPO

24h 20m

2 stops

12:15 pm - 3:36 pm

OPO

SEA

35h 21m

2 stops

$628United Airlines

sáb., ago. 8 - mié., ago. 26

11:49 pm - 9:45 am

SEA

OPO

25h 56m

2 stops

2:25 pm - 6:59 pm

OPO

SEA

36h 34m

2 stops

$629United Airlines

dom., ago. 9 - mar., ago. 25

7:20 pm - 7:00 am

SEA

OPO

27h 40m

2 stops

12:15 pm - 2:22 pm

OPO

SEA

34h 07m

2 stops

$637Air Canada

dom., abr. 19 - jue., abr. 30

6:40 pm - 10:00 pm

SEA

OPO

19h 20m

1 stop

5:55 am - 5:38 pm

OPO

SEA

19h 43m

1 stop

$660Delta

dom., abr. 19 - jue., abr. 30

7:35 am - 10:00 pm

SEA

OPO

30h 25m

2 stops

5:55 am - 5:38 pm

OPO

SEA

19h 43m

1 stop

$664Delta

sáb., abr. 18 - vie., may. 1

5:35 pm - 10:15 pm

SEA

OPO

20h 40m

1 stop

5:55 am - 5:39 pm

OPO

SEA

19h 44m

1 stop

$665Multiple Airlines

mié., abr. 15 - mié., abr. 22

1:05 pm - 6:20 pm

PDX

OPO

21h 15m

1 stop

5:00 am - 11:10 am

OPO

PDX

14h 10m

1 stop

$752KLM

mié., abr. 15 - mié., abr. 22

5:05 pm - 6:20 pm

PDX

OPO

17h 15m

2 stops

11:45 am - 11:10 am

OPO

PDX

31h 25m

1 stop

$756KLM

Useful Info

Low season	January
High season	July
Cheapest flight	$251

Best time to beat the crowds with an average 23% drop in price.

Most popular time to fly with an average 25% increase in price.

Flight from Seattle 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

Chaves

Pinhao

Esposende

Viseu

Arcos de Valdevez

Espinho

Ponte de Lima

Baiao

Santa Maria da Feira

Caminha

Mira

Penafiel

Amares

Curia

Everything you need to know for your flight to Porto

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Information on the airport you'll fly into in Porto

Porto (OPO)

OPO

$251 Find Cheap Flights from Washington to Porto

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

Cheap Flights from Washington to Porto

Recent round-trip flight deals from Washington to Porto

Recent one-way flight deals from Washington to Porto

Recent last minute 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

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

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