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

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 Porto to California.

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

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

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 from Porto to California with an airline and back with another airline.

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

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 from Porto to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Which airlines provide the cheapest flights from Porto to California?

In the past 5 days, the cheapest round-trip tickets from Porto to California were found on Scandinavian Airlines ($700) and American Airlines ($749).

How long does a flight from Porto to California take?

The duration of a flight to California depends on your arrival airport. The shortest routes to California from Porto are to San Francisco , which takes 18h 31m , San Francisco , which takes 19h 20m, and Los Angeles , which takes 22h 34m.

$388 CHEAP FLIGHTS from Porto to California

Save 19% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

One-wayRound-trip

Los Angeles2 stops$625

San Francisco1 stop$555

Los Angeles2 stops$625

San Francisco1 stop$555

Book Cheap Porto to California Plane Tickets

Cheap flights from Porto to California with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Round-trip

One-way

Last minute

Thu, Nov 19 - Thu, Nov 26

5:55 pm - 2:50 pmOPO Porto-SFO San Francisco

28h 55m1 stop Kastrup Copenhagen

4:45 pm - 4:55 pmSFO San Francisco-OPO Porto

16h 10m1 stop Kastrup Copenhagen

$555Scandinavian Airlines

Sat, Nov 14 - Tue, Nov 24

6:15 am - 7:20 amOPO Porto-LAX Los Angeles

33h 05m2 stops Madrid Barajas Casablanca Mohamed V

9:20 am - 12:30 amLAX Los Angeles-OPO Porto

31h 10m3 stops Casablanca Mohamed V Madrid Barajas Lisbon Humberto Delgado

$625Multiple Airlines

Sat, Nov 14 - Tue, Nov 24

7:35 am - 7:20 amOPO Porto-LAX Los Angeles

31h 45m2 stops Madrid Barajas Casablanca Mohamed V

9:20 am - 3:15 pmLAX Los Angeles-OPO Porto

21h 55m2 stops Casablanca Mohamed V Madrid Barajas

$635Multiple Airlines

Mon, Feb 15 - Mon, Feb 22

11:55 am - 10:57 pmOPO Porto-SFO San Francisco

43h 02m2 stops Kastrup Copenhagen New York John F Kennedy Intl

4:45 pm - 11:05 amSFO San Francisco-OPO Porto

34h 20m1 stop Kastrup Copenhagen

$642Scandinavian Airlines

Mon, Mar 1 - Thu, Apr 8

11:55 am - 3:08 pmOPO Porto-SFO San Francisco

59h 13m2 stops Kastrup Copenhagen Los Angeles

4:45 pm - 8:40 amSFO San Francisco-OPO Porto

31h 55m1 stop Kastrup Copenhagen

$648Scandinavian Airlines

Thu, Nov 19 - Thu, Nov 26

5:55 pm - 9:23 pmOPO Porto-SFO San Francisco

35h 28m2 stops Kastrup Copenhagen Los Angeles

4:45 pm - 4:55 pmSFO San Francisco-OPO Porto

16h 10m1 stop Kastrup Copenhagen

$650Scandinavian Airlines

Mon, Mar 1 - Thu, Apr 8

11:55 am - 3:08 pmOPO Porto-SFO San Francisco

59h 13m2 stops Kastrup Copenhagen Los Angeles

4:45 pm - 8:40 amSFO San Francisco-OPO Porto

31h 55m1 stop Kastrup Copenhagen

$651Scandinavian Airlines

Mon, Mar 1 - Thu, Apr 8

11:55 am - 3:08 pmOPO Porto-SFO San Francisco

59h 13m2 stops Kastrup Copenhagen Los Angeles

4:45 pm - 8:40 amSFO San Francisco-OPO Porto

31h 55m1 stop Kastrup Copenhagen

$652Scandinavian Airlines

Fri, Feb 12 - Sat, Feb 20

5:45 pm - 5:00 pmOPO Porto-LAX Los Angeles

31h 15m1 stop Kastrup Copenhagen

7:30 pm - 11:05 amLAX Los Angeles-OPO Porto

31h 35m1 stop Kastrup Copenhagen

$656Scandinavian Airlines

Mon, Mar 22 - Tue, Mar 30

11:55 am - 6:00 pmOPO Porto-LAX Los Angeles

37h 05m1 stop Kastrup Copenhagen

7:10 pm - 11:00 amLAX Los Angeles-OPO Porto

31h 50m1 stop Kastrup Copenhagen

$657Scandinavian Airlines

Sun, Oct 11 - Sun, Oct 18

5:55 am - 5:15 pmOPO Porto-SFO San Francisco

19h 20m2 stops Paris Charles de Gaulle Minneapolis St Paul

12:05 pm - 3:30 pmSFO San Francisco-OPO Porto

19h 25m2 stops Los Angeles Paris Charles de Gaulle

$941Delta

Sun, Oct 11 - Sun, Oct 18

5:55 am - 5:15 pmOPO Porto-SFO San Francisco

19h 20m2 stops Paris Charles de Gaulle Minneapolis St Paul

7:00 am - 10:25 amSFO San Francisco-OPO Porto

19h 25m1 stop New York John F Kennedy Intl

$944Delta

Fri, Oct 16 - Mon, Nov 2

5:00 am - 7:34 pmOPO Porto-LAX Los Angeles

22h 34m2 stops Amsterdam Schiphol Portland

9:05 pm - 10:00 pmLAX Los Angeles-OPO Porto

16h 55m1 stop Paris Charles de Gaulle

$981Delta

Fri, Oct 16 - Mon, Nov 2

5:00 am - 7:34 pmOPO Porto-LAX Los Angeles

22h 34m2 stops Amsterdam Schiphol Portland

7:10 am - 10:30 amLAX Los Angeles-OPO Porto

19h 20m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol

$986Delta

Sun, Oct 11 - Sun, Oct 18

8:40 am - 4:15 pmOPO Porto-SFO San Francisco

15h 35m1 stop Zurich

7:35 pm - 6:15 pmSFO San Francisco-OPO Porto

14h 40m1 stop Zurich

$1,104SWISS

Fri, Oct 16 - Mon, Nov 2

5:00 am - 11:50 amOPO Porto-LAX Los Angeles

14h 50m1 stop Amsterdam Schiphol

7:00 pm - 10:00 pmLAX Los Angeles-OPO Porto

19h 00m1 stop Paris Charles de Gaulle

$1,129KLM

Sun, Oct 11 - Sun, Oct 18

1:55 pm - 1:15 pmOPO Porto-SFO San Francisco

31h 20m3 stops Barcelona-El Prat Palermo Punta Raisi Rome Fiumicino

8:10 am - 1:15 pmSFO San Francisco-OPO Porto

21h 05m2 stops Montreal Pierre Elliott Trudeau Intl Palma de Mallorca Son Sant Joan

$1,514Multiple Airlines

Fri, Oct 16 - Sat, Nov 7

12:25 pm - 1:09 amOPO Porto-LAX Los Angeles

20h 44m2 stops Madrid Barajas New York John F Kennedy Intl

8:05 am - 11:45 amLAX Los Angeles-OPO Porto

19h 40m2 stops New York John F Kennedy Intl Madrid Barajas

$5,203American Airlines

Fri, Oct 16 - Sat, Nov 7

12:25 pm - 1:09 amOPO Porto-LAX Los Angeles

20h 44m2 stops Madrid Barajas New York John F Kennedy Intl

6:30 am - 11:45 amLAX Los Angeles-OPO Porto

21h 15m2 stops New York John F Kennedy Intl Madrid Barajas

$5,205American Airlines

Fri, Oct 16 - Sat, Nov 7

12:25 pm - 1:09 amOPO Porto-LAX Los Angeles

20h 44m2 stops Madrid Barajas New York John F Kennedy Intl

6:02 am - 4:00 pmLAX Los Angeles-OPO Porto

25h 58m2 stops Chicago O'Hare Intl Madrid Barajas

$5,206American Airlines

KAYAK's insights & trends for Porto to California flights

Get data-powered insights and trends into flights from Porto to California to help you find the cheapest flights, the best time to fly and much more.

Prices

Airlines

How much is a round-trip flight from Porto to California?

Flight prices are below average for this route right now.

Flights to California from Porto usually cost between $739 and $1,094 in November.
The lowest price found in the past 5 days was $625 on Multiple Airlines (Nov 14-Nov 24).

What is the cheapest month to fly from Porto to California?

The cheapest month for flights from Porto to California is November, when tickets cost $672 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $1,016 and $987 respectively.

Find deals

Low season	January
High season	August
Cheapest flight	$388

Best time to beat the crowds with an average 15% drop in price.

Most popular time to fly with an average 12% increase in price.

Flight from Porto to San Francisco

How does KAYAK find such low prices on flights from Porto to California?
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 Porto to California.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to California?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Porto to 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 Porto to California?
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 from Porto to California with an airline and back with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to California?
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 from Porto to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

More options for your flight from Porto to California

Add a hotel or car rental

Airports

Cabin class

Origins

Other destinations

Popular routes

Return flight

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

Car rentals in California

Hotels in California

Vacations in California

$388 Find Cheap Flights from Porto to California - Compare and Save

Cheap Flights from Porto to California

Book Cheap Porto to California Plane Tickets

Cheap flights from Porto to California with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

KAYAK's insights & trends for Porto to California flights

How much is a round-trip flight from Porto to California?

What is the cheapest month to fly from Porto to California?

Which airlines provide the cheapest flights from Porto to California?

How long does a flight from Porto to California take?

Good to know

Low season

High season

Cheapest flight

FAQs - booking California flights

More options for your flight from Porto to California

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

Information on your arrival and departure airports

Cabin class types available on flights to California

Flights from other airports in Porto to California

Flights to other popular destinations

Flights from Porto to popular cities in California

Find deals for your return flight