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

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

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

Prices for flights from Porto Airport to California are refreshed on a daily basis.

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

The number of operators available for flights from Porto Airport to California is 2 as of March 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Porto Airport to California.

What documentation or ID do you need to fly to California?

The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$319 Cheap Flights from Porto to California in 2026

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Find the cheapest flights from Porto to California

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:35 am - 7:10 pm

OPO

LAX

18h 35m

1 stop

7:55 pm - 9:20 pm

LAX

OPO

17h 25m

1 stop

$516Iberia

Sat, May 2 - Sun, May 17

8:35 am - 7:10 pm

OPO

LAX

18h 35m

1 stop

7:55 pm - 4:10 pm

LAX

OPO

36h 15m

1 stop

$524Iberia

Sat, Apr 25 - Sun, May 10

8:35 am - 7:10 pm

OPO

LAX

18h 35m

1 stop

7:55 pm - 8:00 am

LAX

OPO

28h 05m

1 stop

$570LEVEL

Sat, May 2 - Sun, May 17

10:00 pm - 7:10 pm

OPO

LAX

29h 10m

1 stop

7:55 pm - 8:00 am

LAX

OPO

28h 05m

1 stop

$574LEVEL

Fri, May 1 - Mon, May 11

7:00 am - 4:10 pm

OPO

SFO

17h 10m

1 stop

5:45 pm - 11:55 pm

SFO

OPO

22h 10m

1 stop

$748Multiple Airlines

Thu, Apr 23 - Thu, May 7

7:00 am - 4:10 pm

OPO

SFO

17h 10m

1 stop

5:45 pm - 11:55 pm

SFO

OPO

22h 10m

1 stop

$749Multiple Airlines

Thu, Apr 23 - Thu, May 7

6:00 am - 3:25 pm

OPO

SFO

17h 25m

1 stop

7:00 am - 9:45 am

SFO

OPO

18h 45m

1 stop

$761Lufthansa

Thu, Apr 16 - Wed, Apr 29

6:00 am - 3:25 pm

OPO

SFO

17h 25m

1 stop

12:45 am - 9:45 am

SFO

OPO

25h 00m

2 stops

$762United Airlines

Thu, Apr 16 - Tue, Apr 28

6:00 am - 3:25 pm

OPO

SFO

17h 25m

1 stop

1:45 pm - 11:25 pm

SFO

OPO

25h 40m

1 stop

$765Lufthansa

Thu, Apr 16 - Wed, Apr 29

6:00 am - 8:34 pm

OPO

SFO

22h 34m

2 stops

5:00 am - 9:45 am

SFO

OPO

20h 45m

2 stops

$767United Airlines

Wed, Apr 22 - Wed, Apr 29

LEVEL flights from Porto to California

Our best LEVEL deals on Porto to California flight tickets

LEVEL

May 2

OPO8:35 amPorto

18h 35m

1 stop

LAX7:10 pmLos Angeles

May 17

LAX7:55 pmLos Angeles

28h 05m

1 stop

OPO8:00 amPorto

$570

LEVEL

May 1

OPO10:00 pmPorto

29h 10m

1 stop

LAX7:10 pmLos Angeles

May 11

LAX7:55 pmLos Angeles

28h 05m

1 stop

OPO8:00 amPorto

$574

LEVEL

Apr 25

OPO8:35 amPorto

18h 35m

1 stop

LAX7:10 pmLos Angeles

May 10

LAX7:55 pmLos Angeles

17h 25m

1 stop

OPO9:20 pmPorto

$578

Iberia flights from Porto to California

Our best Iberia deals on Porto to California flight tickets

Iberia

May 2

OPO8:35 amPorto

18h 35m

1 stop

LAX7:10 pmLos Angeles

May 17

LAX7:55 pmLos Angeles

17h 25m

1 stop

OPO9:20 pmPorto

$516

Iberia

Apr 25

OPO8:35 amPorto

18h 35m

1 stop

LAX7:10 pmLos Angeles

May 10

LAX7:55 pmLos Angeles

36h 15m

1 stop

OPO4:10 pmPorto

$524

Iberia

Apr 25

OPO8:35 amPorto

18h 35m

1 stop

LAX7:10 pmLos Angeles

May 10

LAX7:55 pmLos Angeles

36h 15m

1 stop

OPO4:10 pmPorto

$525

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Sat 5/2

8:35 am-7:10 pm

1 stop18h 35m

Los Angeles

Sun 5/17

7:55 pm-9:20 pm

1 stop17h 25m

$516

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Sat 4/25

8:35 am-7:10 pm

1 stop18h 35m

Los Angeles

Sun 5/10

7:55 pm-4:10 pm

1 stop36h 15m

$524

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Sat 5/2

8:35 am-7:10 pm

1 stop18h 35m

Los Angeles

Sun 5/17

7:55 pm-8:00 am

1 stop28h 05m

$570

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Fri 5/1

10:00 pm-7:10 pm

1 stop29h 10m

Los Angeles

Mon 5/11

7:55 pm-8:00 am

1 stop28h 05m

$574

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Thu 4/23

7:00 am-4:10 pm

1 stop17h 10m

San Francisco

Thu 5/7

5:45 pm-11:55 pm

1 stop22h 10m

$748

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Thu 4/23

7:00 am-4:10 pm

1 stop17h 10m

San Francisco

Thu 5/7

5:45 pm-11:55 pm

1 stop22h 10m

$749

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Thu 4/16

6:00 am-3:25 pm

1 stop17h 25m

San Francisco

Wed 4/29

7:00 am-9:45 am

1 stop18h 45m

$761

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Thu 4/16

6:00 am-3:25 pm

1 stop17h 25m

San Francisco

Tue 4/28

12:45 am-9:45 am

2 stops25h 00m

$762

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Thu 4/16

6:00 am-3:25 pm

1 stop17h 25m

San Francisco

Wed 4/29

1:45 pm-11:25 pm

1 stop25h 40m

$765

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Wed 4/22

6:00 am-8:34 pm

2 stops22h 34m

San Francisco

Wed 4/29

5:00 am-9:45 am

2 stops20h 45m

$767

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 Porto to California

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

What is the cheapest month to fly to California?

The month of May is another great option to travel to California, with average flight prices from Porto averaging around $810.

Can stopping save me money on Porto to California flights?

You could potentially save up to 27% on your flight if you consider stops on a Porto to California flight.

Cheap Porto to California flight deals and tips

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

Fastest flight time	14h 50m
Direct flights	None

The fastest flight from Porto to California takes 14h 50m

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

Search flight deals

When did momondo last update prices for flights from Porto Airport to California?
Prices for flights from Porto Airport to California are refreshed on a daily basis.
How many operators does momondo search for flights from Porto Airport to California?
The number of operators available for flights from Porto Airport to California is 2 as of March 2026.
How old do you have to be to fly from Porto Airport to California?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Porto Airport to California.
What documentation or ID do you need to fly to California?
The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Porto to California

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

Airline	Rating	Free Cancellation	Price
TAP AIR PORTUGAL	PriceFrom $634	Free Cancellation	Rating 7.1 2,184 reviews		Search TAP AIR PORTUGAL flights
Lufthansa	PriceFrom $688	Free Cancellation	Rating 6.8 7,872 reviews		Search Lufthansa flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Porto to California for you.

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

Flights from Porto to California with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to California from Porto.

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

If you are not ready to book a flight from Porto to California now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to California and let you know when they change.