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

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

$294 CHEAP FLIGHTS from California 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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Bundle and saveSave money when you bundle your flight + hotel.

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

Cheapest round-trip

$470

Overall average: $756

Scandinavian Airlines

Thu 3/12Wed 3/18

SFO - OPO • 1 stop

Cheapest one-way

$294

Typical prices: $478-$536

Multiple Airlines

Fri 11/14

SFO - 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 California to Porto

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

Thu, Mar 12 - Wed, Mar 18

5:40 pm - 4:55 pmSFO-OPO

16h 15m1 stop

10:25 am - 3:35 pmOPO-SFO

36h 10m1 stop

$470Scandinavian Airlines

Find Deal

Wed, Dec 3 - Sun, Dec 7

5:35 pm - 11:40 pmSAN-OPO

22h 05m1 stop

6:15 am - 3:45 pmOPO-SAN

17h 30m1 stop

$477Lufthansa

Find Deal

Sat, Nov 29 - Sat, Dec 6

5:30 pm - 11:40 pmLAX-OPO

22h 10m1 stop

11:55 am - 4:35 pmOPO-LAX

36h 40m1 stop

$479Multiple Airlines

Find Deal

Sun, Feb 15 - Mon, Feb 23

10:10 am - 10:30 amSAN-OPO

16h 20m2 stops

4:10 pm - 12:05 pmOPO-SAN

27h 55m1 stop

$482KLM

Find Deal

Wed, Feb 11 - Wed, Feb 18

7:10 pm - 11:10 amLAX-OPO

32h 00m1 stop

12:10 pm - 4:35 pmOPO-LAX

36h 25m1 stop

$482SWISS

Find Deal

Wed, Feb 11 - Wed, Feb 18

8:30 am - 12:05 pmLAX-OPO

19h 35m2 stops

6:00 am - 10:32 amOPO-LAX

36h 32m2 stops

$484Multiple Airlines

Find Deal

Sat, Jan 10 - Fri, Feb 20

7:10 pm - 11:10 amLAX-OPO

32h 00m1 stop

12:50 pm - 4:35 pmOPO-LAX

35h 45m1 stop

$491SWISS

Find Deal

Wed, Dec 3 - Sun, Dec 7

7:10 am - 10:30 amSAN-OPO

19h 20m2 stops

5:00 am - 10:54 pmOPO-SAN

25h 54m2 stops

$492Delta

Find Deal

Sat, Nov 29 - Sat, Dec 6

5:45 am - 10:30 amLAX-OPO

20h 45m2 stops

6:00 am - 10:28 pmOPO-LAX

24h 28m2 stops

$492Delta

Find Deal

Thu, Feb 5 - Sat, Feb 21

1:45 pm - 1:20 pmLAX-OPO

15h 35m1 stop

6:00 am - 8:03 pmOPO-LAX

22h 03m2 stops

$539KLM

Find Deal

Useful Info

Low season	February
High season	July
Cheapest flight	$294

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 San Francisco to Porto

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

$294 Find Cheap Flights from California to Porto

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

Everything you should know

Cheap Flights from California to Porto

Recent round-trip flight deals from California to Porto

Recent one-way flight deals from California to Porto

Recent last minute flight deals from California to Porto

Good to know

FAQs for booking flights from California to Porto

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

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

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

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

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