What is the cheapest airline that flies from California to Porto?

United Airlines, Delta, and British Airways are the most popular carriers operating from California to Porto

How long does it take to fly to Porto?

Flight times from California to Porto vary, but if you’re flying out of Santa Ana and flying into Porto (one of the most popular routes), then the duration is 12h 55m on average. Another popular route from California to Porto is flying from Los Angeles to Porto, which will take roughly 15h. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Porto?

TAP AIR PORTUGAL, United Airlines and Delta are the top three most popular airlines that fly to Porto from California according to our data. TAP AIR PORTUGAL is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 11 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from California to Porto Airport?

Prices for flights from California to Porto Airport refresh daily.

How many operators does momondo search for flights from California to Porto Airport?

As of November 2026, there are 11 operators available to choose from for flights from California to Porto Airport.

How old do you have to be to fly from California to Porto Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Porto Airport.

What documentation or ID do you need to fly to Porto Airport?

The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$208 Cheap Flights from California to Porto in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from California to Porto

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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 29 - Sat, Feb 6

10:20 am - 11:15 amLAX Los Angeles-OPO Porto

16h 55m1 stop Casablanca Mohamed V

12:15 pm - 8:20 amOPO Porto-LAX Los Angeles

28h 05m1 stop Casablanca Mohamed V

$581Royal Air Maroc

Fri, Apr 23 - Sat, May 1

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

20h 50m1 stop Lisbon Humberto Delgado

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

16h 15m1 stop Lisbon Humberto Delgado

$658TAP AIR PORTUGAL

Tue, Nov 17 - Thu, Dec 10

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

13h 50m1 stop Lisbon Humberto Delgado

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

16h 15m1 stop Lisbon Humberto Delgado

$658TAP AIR PORTUGAL

Tue, Nov 17 - Tue, Dec 8

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

31h 55m1 stop Kastrup Copenhagen

11:50 am - 2:40 pmOPO Porto-SFO San Francisco

34h 50m1 stop Kastrup Copenhagen

$681Scandinavian Airlines

Thu, Apr 8 - Thu, Apr 15

8:30 pm - 11:15 amLAX Los Angeles-OPO Porto

31h 45m1 stop Zurich

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

15h 50m1 stop Zurich

$703SWISS

Tue, Mar 16 - Wed, Mar 31

7:25 pm - 11:15 amSFO San Francisco-OPO Porto

31h 50m1 stop Zurich

12:05 pm - 4:30 pmOPO Porto-SFO San Francisco

36h 25m1 stop Zurich

$722SWISS

Tue, Feb 9 - Thu, Feb 25

6:05 pm - 10:00 pmSFO San Francisco-OPO Porto

19h 55m1 stop Paris Charles de Gaulle

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

32h 30m1 stop Amsterdam Schiphol

$722Delta

Wed, Feb 10 - Wed, Feb 24

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

$722Delta

Wed, Feb 10 - Tue, Feb 23

4:45 pm - 10:40 amSFO San Francisco-OPO Porto

33h 55m1 stop Kastrup Copenhagen

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

29h 05m1 stop Kastrup Copenhagen

$740Scandinavian Airlines

Mon, Jan 4 - Fri, Jan 22

Cheap last minute flights

Enter your travel dates to find the best prices.

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

Thu, Nov 5 - Thu, Nov 12

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

15h 50m1 stop Lisbon Humberto Delgado

8:00 pm - 3:15 pmOPO Porto-LAX Los Angeles

27h 15m1 stop Lisbon Humberto Delgado

$547TAP AIR PORTUGAL

Thu, Nov 5 - Wed, Nov 18

4:35 pm - 3:00 pmSFO San Francisco-OPO Porto

14h 25m1 stop Lisbon Humberto Delgado

7:50 pm - 4:05 pmOPO Porto-SFO San Francisco

28h 15m2 stops Madrid Barajas Lisbon Humberto Delgado

$690Multiple Airlines

Mon, Nov 9 - Thu, Nov 19

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

$708Royal Air Maroc

Fri, Nov 6 - Sat, Nov 21

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

31h 45m1 stop Zurich

12:05 pm - 4:35 pmOPO Porto-LAX Los Angeles

36h 30m1 stop Zurich

$800SWISS

Mon, Nov 9 - Mon, Nov 23

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

31h 45m1 stop Zurich

12:05 pm - 4:35 pmOPO Porto-LAX Los Angeles

36h 30m1 stop Zurich

$803SWISS

Wed, Nov 4 - Mon, Nov 9

3:20 pm - 9:55 pmLAX Los Angeles-OPO Porto

22h 35m1 stop Paris Charles de Gaulle

5:00 am - 11:45 amOPO Porto-LAX Los Angeles

14h 45m1 stop Amsterdam Schiphol

$830Delta

Sun, Nov 8 - Thu, Nov 19

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

16h 55m1 stop Paris Charles de Gaulle

11:15 am - 11:45 amOPO Porto-LAX Los Angeles

32h 30m1 stop Amsterdam Schiphol

$830Delta

Mon, Nov 9 - Tue, Nov 24

6:15 am - 9:30 amSFO San Francisco-OPO Porto

19h 15m2 stops Washington, D.C. Dulles Intl Newark

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

22h 10m1 stop Frankfurt am Main

$833United Airlines

Sun, Nov 8 - Thu, Nov 19

6:15 am - 9:30 amSFO San Francisco-OPO Porto

19h 15m2 stops Washington, D.C. Dulles Intl Newark

6:00 am - 4:05 pmOPO Porto-SFO San Francisco

18h 05m1 stop Frankfurt am Main

$833United Airlines

Sun, Nov 8 - Fri, Nov 20

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TAP AIR PORTUGAL flights from California to Porto

Our best TAP AIR PORTUGAL deals on California to Porto flight tickets

TAP AIR PORTUGAL

Nov 10

LAX5:10 pmLos Angeles

17h 50m

1 stop

OPO7:00 pmPorto

Nov 17

OPO5:00 amPorto

18h 15m

1 stop

LAX3:15 pmLos Angeles

$545

TAP AIR PORTUGAL

Nov 5

LAX5:10 pmLos Angeles

15h 50m

1 stop

OPO5:00 pmPorto

Nov 18

OPO8:00 pmPorto

27h 15m

1 stop

LAX3:15 pmLos Angeles

$547

TAP AIR PORTUGAL

Nov 5

LAX5:10 pmLos Angeles

23h 20m

1 stop

OPO12:30 amPorto

Nov 18

OPO8:00 pmPorto

27h 15m

1 stop

LAX3:15 pmLos Angeles

$551

SWISS flights from California to Porto

Our best SWISS deals on California to Porto flight tickets

SWISS

Mar 16

LAX8:30 pmLos Angeles

31h 45m

1 stop

OPO11:15 amPorto

Mar 31

OPO8:40 amPorto

15h 50m

1 stop

LAX4:30 pmLos Angeles

$703

SWISS

Nov 30

SFO7:25 pmSan Francisco

31h 50m

1 stop

OPO11:15 amPorto

Dec 15

OPO12:05 pmPorto

36h 25m

1 stop

SFO4:30 pmSan Francisco

$739

SWISS

Mar 30

LAX7:35 pmLos Angeles

31h 50m

1 stop

OPO11:25 amPorto

Apr 27

OPO8:40 amPorto

15h 50m

1 stop

LAX4:30 pmLos Angeles

$747

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesPorto

LAX Los Angeles - OPO Porto

LAXOPO

Los Angeles

Fri 1/29

9:20 am-10:15 am

1 stop16h 55m

Porto

Sat 2/6

11:15 am-7:20 am

1 stop28h 05m

$581

Los AngelesPorto

LAX Los Angeles - OPO Porto

LAXOPO

Los Angeles

Fri 4/23

10:20 am-11:15 am

1 stop16h 55m

Porto

Sat 5/1

12:15 pm-8:20 am

1 stop28h 05m

$581

Los AngelesPorto

LAX Los Angeles - OPO Porto

LAXOPO

Los Angeles

Tue 11/17

5:10 pm-10:00 pm

1 stop20h 50m

Porto

Thu 12/10

7:00 am-3:15 pm

1 stop16h 15m

$658

Quickest round-trip

Los AngelesPorto

LAX Los Angeles - OPO Porto

LAXOPO

Los Angeles

Tue 11/17

5:10 pm-3:00 pm

1 stop13h 50m

Porto

Tue 12/8

7:00 am-3:15 pm

1 stop16h 15m

$658

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Thu 4/8

4:45 pm-8:40 am

1 stop31h 55m

Porto

Thu 4/15

11:50 am-2:40 pm

1 stop34h 50m

$681

Los AngelesPorto

LAX Los Angeles - OPO Porto

LAXOPO

Los Angeles

Tue 3/16

8:30 pm-11:15 am

1 stop31h 45m

Porto

Wed 3/31

8:40 am-4:30 pm

1 stop15h 50m

$703

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Tue 2/9

7:25 pm-11:15 am

1 stop31h 50m

Porto

Thu 2/25

12:05 pm-4:30 pm

1 stop36h 25m

$722

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Wed 2/10

6:05 pm-10:00 pm

1 stop19h 55m

Porto

Wed 2/24

11:15 am-11:45 am

1 stop32h 30m

$722

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Wed 2/10

3:10 pm-10:00 pm

1 stop22h 50m

Porto

Tue 2/23

11:15 am-11:45 am

1 stop32h 30m

$722

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Mon 1/4

4:45 pm-10:40 am

1 stop33h 55m

Porto

Fri 1/22

5:45 pm-2:50 pm

1 stop29h 05m

$740

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from California to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Porto?

The month of February is, on average, the cheapest month to fly to Porto from California, with most prices found around $675. If you aren’t able to travel during the month of February, then book flights to Porto from California during April instead. Flights to Porto in April, while not as cheap as those in February, still average around $717.

How far in advance should I book a flight from California to Porto?

You are more likely to see cheaper flights to Porto from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $878 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from California for as low as $804 on momondo.

Can stopping save me money on California to Porto flights?

You could potentially save up to 2% on your flight if you consider stops on a California to Porto flight.

Cheap California to Porto flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to Porto

Best Price Found	$208
Fastest flight time	12h 55m
Direct flights	None

The best one-way flight to Porto from California in the past 72 hours is $208. The best round-trip flight deal from California to Porto found on momondo in the last 72 hours is $581.

The fastest flight from California to Porto takes 12h 55m

There are no direct flights from California to Porto. There are no popular flight routes from California to Porto.

Search flight deals

Frequently asked questions about flying from California to Porto

When did momondo last update prices for flights from California to Porto Airport?
Prices for flights from California to Porto Airport refresh daily.
How many operators does momondo search for flights from California to Porto Airport?
As of November 2026, there are 11 operators available to choose from for flights from California to Porto Airport.
How old do you have to be to fly from California to Porto Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from California to Porto

Compare and see reviews for airlines that fly from California to Porto with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $151	Free Cancellation	Rating 7.8 1,595 reviews	Search KLM flights
TAP AIR PORTUGAL	PriceFrom $431	Free Cancellation	Rating 7.2 2,394 reviews	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	PriceFrom $460	Free Cancellation	Rating 7.4 2,027 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $508	Free Cancellation	Rating 7.3 10,462 reviews	Search United Airlines flights
Delta	PriceFrom $533	Free Cancellation	Rating 7.8 8,698 reviews	Search Delta flights
SWISS	PriceFrom $623	Free Cancellation	Rating 7.5 2,107 reviews	Search SWISS flights
Lufthansa	PriceFrom $625	Free Cancellation	Rating 6.8 8,298 reviews	Search Lufthansa flights
Turkish Airlines	PriceFrom $654	Free Cancellation	Rating 7.4 4,466 reviews	Search Turkish Airlines flights
Iberia	PriceFrom $681	Free Cancellation	Rating 7.0 3,240 reviews	Search Iberia flights
Air Canada	PriceFrom $830	Free Cancellation	Rating 7.1 11,854 reviews	Search Air Canada flights

Braga

Coimbra

Vila Nova de Gaia

Aveiro

Pinhao

Esposende

Matosinhos

Chaves

Viseu

Espinho

Arcos de Valdevez

Lamego

Guimarães

Caminha

Penafiel

Ponte de Lima

Mira

Why use momondo?

Why should I use momondo to find a flight deal from California to Porto?

It is quick and easy to find California to Porto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto that suits you.

Can I find flights from California to Porto with flexible booking policies on momondo?

momondo does allow users to show only those flights to Porto from California which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from California to Porto?

momondo helps you find the best flight between California and Porto by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from California to Porto right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Porto from California. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Azores Airport

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Cheap flights from California to Porto from $208

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Porto departing on 11/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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TAP AIR PORTUGAL flights from California to Porto

Our best TAP AIR PORTUGAL deals on California to Porto flight tickets

SWISS flights from California to Porto

Our best SWISS deals on California to Porto flight tickets

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See travel insights to Porto from

How to get the cheapest flight ticket from California to Porto

What is the cheapest month to fly to Porto?

How far in advance should I book a flight from California to Porto?

Can stopping save me money on California to Porto flights?

What is the cheapest airline that flies from California to Porto?

What airlines fly to Porto?

How long does it take to fly to Porto?

Cheap California to Porto flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from California to Porto

Best airlines flying from California to Porto

Compare and see reviews for airlines that fly from California to Porto with momondo

Traveling to a place near Porto?

Why use momondo?

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal

Fly your favorite airline to Porto

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Porto

List of cabin classes available on flights landing in Porto. Availability may vary depending on flight origin and airline.

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

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