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.

$208 CHEAP FLIGHTS from California to Porto

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Flight Deals

Cheap Flights from California 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 California to Porto

Tue, Nov 10 - Tue, Nov 24

5:10 pm - 5:00 pmLAX Los Angeles-OPO Porto

15h 50m1 stop Lisbon Humberto Delgado

7:00 am - 3:15 pmOPO Porto-LAX Los Angeles

16h 15m1 stop Lisbon Humberto Delgado

$568TAP AIR PORTUGAL

Tue, Nov 10 - Mon, Nov 23

5:10 pm - 3:00 pmLAX Los Angeles-OPO Porto

13h 50m1 stop Lisbon Humberto Delgado

6:00 pm - 3:15 pmOPO Porto-LAX Los Angeles

29h 15m1 stop Lisbon Humberto Delgado

$568TAP AIR PORTUGAL

Fri, Jan 29 - Sat, Feb 6

9:20 am - 10:15 amLAX Los Angeles-OPO Porto

16h 55m1 stop Casablanca Mohamed V

11:15 am - 7:20 amOPO Porto-LAX Los Angeles

28h 05m1 stop Casablanca Mohamed V

$581Royal Air Maroc

Fri, Jan 15 - Sat, Jan 23

9:20 am - 10:15 amLAX Los Angeles-OPO Porto

16h 55m1 stop Casablanca Mohamed V

11:15 am - 7:20 amOPO Porto-LAX Los Angeles

28h 05m1 stop Casablanca Mohamed V

$582Royal Air Maroc

Sat, Jan 16 - Wed, Feb 10

4:45 pm - 12:05 pmSFO San Francisco-OPO Porto

35h 20m1 stop Kastrup Copenhagen

11:55 am - 2:50 pmOPO Porto-SFO San Francisco

34h 55m1 stop Kastrup Copenhagen

$674Scandinavian Airlines

Sat, Jan 9 - Wed, Feb 17

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

16h 00m1 stop Kastrup Copenhagen

11:55 am - 2:50 pmOPO Porto-SFO San Francisco

34h 55m1 stop Kastrup Copenhagen

$690Scandinavian Airlines

Wed, Apr 14 - Wed, Apr 21

7:35 pm - 6:30 pmLAX Los Angeles-OPO Porto

14h 55m1 stop Zurich

8:40 am - 4:30 pmOPO Porto-LAX Los Angeles

15h 50m1 stop Zurich

$693SWISS

Mon, Mar 1 - Wed, Mar 10

7:30 pm - 6:30 pmLAX Los Angeles-OPO Porto

15h 00m1 stop Zurich

7:20 pm - 4:35 pmOPO Porto-LAX Los Angeles

29h 15m1 stop Zurich

$697SWISS

Tue, Apr 13 - Tue, Apr 20

8:05 pm - 11:25 pmSFO San Francisco-OPO Porto

19h 20m1 stop Munich Franz Josef Strauss

6:20 am - 6:15 pmOPO Porto-SFO San Francisco

19h 55m1 stop Munich Franz Josef Strauss

$704Lufthansa

Sun, Apr 18 - Tue, Apr 27

5:15 pm - 11:25 pmSAN San Diego-OPO Porto

22h 10m1 stop Munich Franz Josef Strauss

6:20 am - 3:25 pmOPO Porto-SAN San Diego

17h 05m1 stop Munich Franz Josef Strauss

$704Lufthansa

Recent last minute flight deals from California to Porto

Tue, Nov 3 - Thu, Nov 26

5:10 pm - 7:00 pmLAX Los Angeles-OPO Porto

17h 50m1 stop Lisbon Humberto Delgado

7:00 am - 3:15 pmOPO Porto-LAX Los Angeles

16h 15m1 stop Lisbon Humberto Delgado

$541TAP AIR PORTUGAL

Thu, Nov 5 - Thu, Nov 12

5:10 pm - 12:30 amLAX Los Angeles-OPO Porto

23h 20m1 stop Lisbon Humberto Delgado

5:00 am - 3:15 pmOPO Porto-LAX Los Angeles

18h 15m1 stop Lisbon Humberto Delgado

$542TAP AIR PORTUGAL

Wed, Nov 4 - Thu, Nov 12

4:45 pm - 5:05 pmSFO San Francisco-OPO Porto

16h 20m1 stop Kastrup Copenhagen

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

28h 55m1 stop Kastrup Copenhagen

$744Scandinavian Airlines

Wed, Nov 4 - Fri, Nov 13

4:45 pm - 5:05 pmSFO San Francisco-OPO Porto

16h 20m1 stop Kastrup Copenhagen

5:45 pm - 2:50 pmOPO Porto-SFO San Francisco

29h 05m1 stop Kastrup Copenhagen

$744Scandinavian Airlines

Tue, Nov 3 - Thu, Nov 26

7:30 pm - 11:15 amLAX Los Angeles-OPO Porto

31h 45m1 stop Zurich

6:00 am - 9:34 pmOPO Porto-LAX Los Angeles

23h 34m2 stops Frankfurt am Main Toronto Pearson Intl

$823Multiple Airlines

Tue, Nov 3 - Thu, Nov 26

7:30 pm - 11:15 amLAX Los Angeles-OPO Porto

31h 45m1 stop Zurich

6:00 am - 9:34 pmOPO Porto-LAX Los Angeles

23h 34m2 stops Frankfurt am Main Toronto Pearson Intl

$824Multiple Airlines

Mon, Nov 2 - Fri, Nov 13

7:00 am - 9:30 amSFO San Francisco-OPO Porto

18h 30m1 stop Newark

12:35 pm - 8:10 pmOPO Porto-SFO San Francisco

15h 35m1 stop Frankfurt am Main

$829United Airlines

Mon, Nov 2 - Thu, Nov 12

12:05 pm - 9:30 amSFO San Francisco-OPO Porto

13h 25m1 stop Newark

6:00 am - 8:10 pmOPO Porto-SFO San Francisco

22h 10m1 stop Frankfurt am Main

$829United Airlines

Mon, Nov 2 - Tue, Nov 10

3:10 pm - 10:00 pmSFO San Francisco-OPO Porto

22h 50m1 stop Paris Charles de Gaulle

11:15 am - 11:45 amOPO Porto-SFO San Francisco

32h 30m1 stop Amsterdam Schiphol

$830Delta

Mon, Nov 2 - Wed, Nov 11

3:10 pm - 10:00 pmSFO San Francisco-OPO Porto

22h 50m1 stop Paris Charles de Gaulle

5:00 am - 11:45 amOPO Porto-SFO San Francisco

14h 45m1 stop Amsterdam Schiphol

$830Delta

Useful Info

Low season	January
High season	July
Cheapest flight	$208

Best time to beat the crowds with an average 21% drop in price.

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

Flight from Los Angeles 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.

Guimarães

Lamego

Matosinhos

Viseu

Chaves

Pinhao

Esposende

Santa Maria da Feira

Espinho

Ponte de Lima

Baiao

Arcos de Valdevez

Caminha

Mesao Frio

Mira

Amares

Penafiel

Curia

More options for your flight to Porto

Add a hotel or car rental

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Cabin class

Direct Flights

Origins

Other destinations

Return flight

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

OPO

$208 Find Cheap Flights from California to Porto - Compare and Save

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

Low season

High season

Cheapest flight

FAQs for booking flights from California to Porto

Traveling to a place near Porto?

More options for your flight to Porto

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

Information on the airport you'll fly into in Porto

Cabin class types available on flights to California

Find direct flights for Porto

Flights from domestic origins to Porto

Flights to other popular destinations

Find deals for your return flight