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

Iberia, British Airways, and TAP AIR PORTUGAL 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 July 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.

$332 Cheap Flights from Porto to California in 2026

Discover deals from 900+ travel sites with momondo.

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.

3:00 pm - 4:30 pm

OPO

LAX

33h 30m

2 stops

3:05 pm - 8:10 am

LAX

OPO

33h 05m

3 stops

$647Multiple Airlines

Tue, Sep 15 - Tue, Sep 22

3:00 pm - 4:30 pm

OPO

LAX

33h 30m

2 stops

3:05 pm - 8:10 am

LAX

OPO

33h 05m

3 stops

$667Multiple Airlines

Tue, Sep 15 - Tue, Sep 22

10:00 pm - 8:15 pm

OPO

LAX

30h 15m

2 stops

7:50 pm - 8:00 am

LAX

OPO

28h 10m

1 stop

$694Iberia

Wed, Sep 9 - Fri, Oct 2

10:00 pm - 8:15 pm

OPO

LAX

30h 15m

2 stops

7:50 pm - 8:00 am

LAX

OPO

28h 10m

1 stop

$700Iberia

Tue, Sep 8 - Fri, Oct 2

9:15 pm - 2:30 pm

OPO

SFO

25h 15m

1 stop

4:35 pm - 7:00 pm

SFO

OPO

18h 25m

1 stop

$713TAP AIR PORTUGAL

Wed, Sep 23 - Wed, Oct 7

6:00 pm - 2:30 pm

OPO

SFO

28h 30m

1 stop

4:35 pm - 8:25 pm

SFO

OPO

19h 50m

1 stop

$715TAP AIR PORTUGAL

Wed, Sep 23 - Wed, Oct 7

4:50 pm - 6:55 pm

OPO

LAX

34h 05m

1 stop

8:55 pm - 4:10 pm

LAX

OPO

35h 15m

1 stop

$718LEVEL

Thu, Aug 27 - Sat, Sep 12

4:50 pm - 6:55 pm

OPO

LAX

34h 05m

1 stop

8:55 pm - 4:10 pm

LAX

OPO

35h 15m

1 stop

$723LEVEL

Thu, Aug 27 - Sat, Sep 12

1:30 pm - 10:22 pm

OPO

LAS

16h 52m

1 stop

11:20 pm - 11:55 am

LAS

OPO

28h 35m

1 stop

$753Air Transat

Mon, Aug 24 - Tue, Sep 8

1:30 pm - 10:22 pm

OPO

LAS

16h 52m

1 stop

11:20 pm - 11:55 am

LAS

OPO

28h 35m

1 stop

$783Air Transat

Mon, Aug 24 - Tue, Sep 8

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Lufthansa flights from Porto to California

Our best Lufthansa deals on Porto to California flight tickets

Lufthansa

Aug 27

OPO12:10 pmPorto

32h 30m

1 stop

SFO12:40 pmSan Francisco

Sep 10

SFO9:05 pmSan Francisco

18h 20m

1 stop

OPO11:25 pmPorto

$797

Lufthansa

Jul 17

OPO12:35 pmPorto

16h 53m

1 stop

SFO9:28 pmSan Francisco

Jul 31

SFO9:05 pmSan Francisco

18h 20m

1 stop

OPO11:25 pmPorto

$1,026

Lufthansa

Jul 17

OPO12:35 pmPorto

16h 53m

1 stop

SFO9:28 pmSan Francisco

Jul 31

SFO9:05 pmSan Francisco

18h 20m

1 stop

OPO11:25 pmPorto

$1,027

TAP AIR PORTUGAL flights from Porto to California

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

TAP AIR PORTUGAL

Sep 23

OPO9:15 pmPorto

25h 15m

1 stop

SFO2:30 pmSan Francisco

Oct 7

SFO4:35 pmSan Francisco

18h 25m

1 stop

OPO7:00 pmPorto

$713

TAP AIR PORTUGAL

Sep 23

OPO6:00 pmPorto

28h 30m

1 stop

SFO2:30 pmSan Francisco

Oct 7

SFO4:35 pmSan Francisco

19h 50m

1 stop

OPO8:25 pmPorto

$715

TAP AIR PORTUGAL

Sep 17

OPO5:05 amPorto

17h 25m

1 stop

SFO2:30 pmSan Francisco

Oct 28

SFO5:35 pmSan Francisco

14h 25m

1 stop

OPO3:00 pmPorto

$720

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Tue 9/15

3:00 pm-4:30 pm

2 stops33h 30m

Los Angeles Los Angeles

Tue 9/22

3:05 pm-8:10 am

3 stops33h 05m

$647

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Tue 9/15

3:00 pm-4:30 pm

2 stops33h 30m

Los Angeles Los Angeles

Tue 9/22

3:05 pm-8:10 am

3 stops33h 05m

$667

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Wed 9/9

10:00 pm-8:15 pm

2 stops30h 15m

Los Angeles Los Angeles

Fri 10/2

7:50 pm-8:00 am

1 stop28h 10m

$694

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Tue 9/8

10:00 pm-8:15 pm

2 stops30h 15m

Los Angeles Los Angeles

Fri 10/2

7:50 pm-8:00 am

1 stop28h 10m

$700

Quickest round-trip

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Wed 9/23

9:15 pm-2:30 pm

1 stop25h 15m

San Francisco

Wed 10/7

4:35 pm-7:00 pm

1 stop18h 25m

$713

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Wed 9/23

6:00 pm-2:30 pm

1 stop28h 30m

San Francisco

Wed 10/7

4:35 pm-8:25 pm

1 stop19h 50m

$715

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Thu 8/27

4:50 pm-6:55 pm

1 stop34h 05m

Los Angeles Los Angeles

Sat 9/12

8:55 pm-4:10 pm

1 stop35h 15m

$718

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Thu 8/27

4:50 pm-6:55 pm

1 stop34h 05m

Los Angeles Los Angeles

Sat 9/12

8:55 pm-4:10 pm

1 stop35h 15m

$723

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 8/24

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Tue 9/8

11:20 pm-11:55 am

1 stop28h 35m

$753

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 8/24

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Tue 9/8

11:20 pm-11:55 am

1 stop28h 35m

$783

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 March is another great option to travel to California, with average flight prices from Porto averaging around $526.

Can stopping save me money on Porto to California flights?

You could potentially save up to 14% 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	15h 35m
Direct flights	None

The fastest flight from Porto to California takes 15h 35m

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

Search flight deals

Frequently asked questions about flying 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 July 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 7.2 2,315 reviews		Search TAP AIR PORTUGAL flights
Lufthansa	PriceFrom $688	Free Cancellation	Rating 6.8 8,116 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.