What airlines fly to Porto?

United Airlines, TAP AIR PORTUGAL and Lufthansa are the top three most popular airlines that fly to Porto from California according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 14 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

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

United Airlines, Brussels Airlines, 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 Los Angeles and flying into Porto (one of the most popular routes), then the duration is 13h 45m on average. Another popular route from California to Porto is flying from San Francisco to Porto, which will take roughly 16h 20m. Keep in mind that layovers or delays could extend your travel time.

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 December 2025, there are 14 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.

$239 Cheap Flights from California to Porto in 2025/26

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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.

7:10 pm - 11:15 am

LAX

OPO

32h 05m1 stop

11:55 am - 4:35 pm

OPO

LAX

36h 40m1 stop

$463SWISS

dom., ene. 11 - sáb., ene. 24

8:30 am - 2:45 pm

LAX

OPO

22h 15m2 stops

6:00 am - 9:28 pm

OPO

LAX

23h 28m2 stops

$466Air Canada

jue., ene. 22 - mié., feb. 11

7:10 pm - 11:15 am

LAX

OPO

32h 05m1 stop

6:00 am - 9:28 pm

OPO

LAX

23h 28m2 stops

$471Multiple Airlines

lun., ene. 12 - dom., ene. 18

8:30 am - 12:05 pm

LAX

OPO

19h 35m2 stops

6:00 am - 8:27 pm

OPO

LAX

22h 27m2 stops

$472Multiple Airlines

lun., ene. 12 - dom., ene. 18

5:45 pm - 10:30 am

LAX

OPO

32h 45m1 stop

11:15 am - 12:45 pm

OPO

LAX

32h 30m1 stop

$479KLM

jue., mar. 5 - dom., mar. 15

8:45 am - 10:30 am

LAX

OPO

17h 45m2 stops

5:00 am - 11:45 am

OPO

LAX

14h 45m1 stop

$482Delta

mié., feb. 11 - mié., feb. 18

3:00 pm - 10:25 pm

SAN

OPO

24h 25m1 stop

11:15 am - 1:05 pm

OPO

SAN

32h 50m1 stop

$483KLM

mar., mar. 10 - vie., mar. 20

11:10 am - 2:45 pm

SMF

OPO

19h 35m2 stops

6:00 am - 7:39 pm

OPO

SMF

21h 39m2 stops

$491Lufthansa

jue., ene. 22 - lun., ene. 26

7:05 am - 10:30 am

SAN

OPO

19h 25m2 stops

5:00 am - 10:32 pm

OPO

SAN

25h 32m2 stops

$492Delta

sáb., ene. 24 - dom., feb. 1

11:05 am - 12:50 pm

SNA

OPO

17h 45m2 stops

12:30 pm - 8:42 pm

OPO

SNA

40h 12m2 stops

$493Lufthansa

vie., ene. 23 - vie., ene. 30

SWISS flights from California to Porto

Our best SWISS deals on California to Porto flight tickets

SWISS

Jan 11

LAX7:10 pmLos Angeles

32h 05m

1 stop

OPO11:15 amPorto

Jan 24

OPO11:55 amPorto

36h 40m

1 stop

LAX4:35 pmLos Angeles

$463

Find similar

SWISS

Jan 11

LAX7:10 pmLos Angeles

32h 05m

1 stop

OPO11:15 amPorto

Jan 24

OPO11:55 amPorto

36h 40m

1 stop

LAX4:35 pmLos Angeles

$474

Find similar

SWISS

Jan 11

LAX7:00 pmLos Angeles

32h 15m

2 stops

OPO11:15 amPorto

Jan 24

OPO11:55 amPorto

36h 40m

1 stop

LAX4:35 pmLos Angeles

$490

Find similar

Delta flights from California to Porto

Our best Delta deals on California to Porto flight tickets

Delta

Feb 11

LAX8:45 amLos Angeles

17h 45m

2 stops

OPO10:30 amPorto

Feb 18

OPO5:00 amPorto

14h 45m

1 stop

LAX11:45 amLos Angeles

$482

Find similar

Delta

Mar 5

LAX8:30 amLos Angeles

22h 55m

2 stops

OPO3:25 pmPorto

Mar 15

OPO5:00 amPorto

14h 45m

1 stop

LAX12:45 pmLos Angeles

$488

Find similar

Delta

Jan 11

LAX5:05 pmLos Angeles

38h 20m

2 stops

OPO3:25 pmPorto

Jan 24

OPO5:00 amPorto

36h 32m

2 stops

LAX9:32 amLos Angeles

$489

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

dom. 1/11

7:10 pm-11:15 am

1 stop32h 05m

Porto

sáb. 1/24

11:55 am-4:35 pm

1 stop36h 40m

$463

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

jue. 1/22

8:30 am-2:45 pm

2 stops22h 15m

Porto

mié. 2/11

6:00 am-9:28 pm

2 stops23h 28m

$466

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

lun. 1/12

7:10 pm-11:15 am

1 stop32h 05m

Porto

dom. 1/18

6:00 am-9:28 pm

2 stops23h 28m

$471

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

lun. 1/12

8:30 am-12:05 pm

2 stops19h 35m

Porto

dom. 1/18

6:00 am-8:27 pm

2 stops22h 27m

$472

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

jue. 3/5

5:45 pm-10:30 am

1 stop32h 45m

Porto

dom. 3/15

11:15 am-12:45 pm

1 stop32h 30m

$479

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

mié. 2/11

8:45 am-10:30 am

2 stops17h 45m

Porto

mié. 2/18

5:00 am-11:45 am

1 stop14h 45m

$482

San DiegoPorto

SAN - OPO

SANOPO

San Diego

mar. 3/10

3:00 pm-10:25 pm

1 stop24h 25m

Porto

vie. 3/20

11:15 am-1:05 pm

1 stop32h 50m

$483

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

jue. 1/22

11:10 am-2:45 pm

2 stops19h 35m

Porto

lun. 1/26

6:00 am-7:39 pm

2 stops21h 39m

$491

San DiegoPorto

SAN - OPO

SANOPO

San Diego

sáb. 1/24

7:05 am-10:30 am

2 stops19h 25m

Porto

dom. 2/1

5:00 am-10:32 pm

2 stops25h 32m

$492

Santa AnaPorto

SNA - OPO

SNAOPO

Santa Ana J. Wayne/Orange Cnty

vie. 1/23

11:05 am-12:50 pm

2 stops17h 45m

Porto

vie. 1/30

12:30 pm-8:42 pm

2 stops40h 12m

$493

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 January is, on average, the cheapest month to fly to Porto from California, with most prices found around $649. If you aren’t able to travel during the month of January, then book flights to Porto from California during February instead. Flights to Porto in February, while not as cheap as those in January, still average around $666.

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Wednesday when prices can be found for as low as $942. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,197. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the evening is the cheapest time of day to fly from California to Porto when you can find flight prices for as low as $954. Flying to Porto in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,172 on average. Flights to Porto from California in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight 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 $890 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 $765 on momondo.

Can stopping save me money on California to Porto flights?

You could potentially save up to 17% 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

Fastest flight time	13h 50m
Direct flights	None

The fastest flight from California to Porto takes 13h 50m

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

Search flight deals

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 December 2025, there are 14 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
LEVEL	PriceFrom $388	Free Cancellation	Rating 0.0	Search LEVEL flights
KLM	PriceFrom $476	Free Cancellation	Rating 7.7 1,432 reviews	Search KLM flights
Scandinavian Airlines	PriceFrom $527	Free Cancellation	Rating 7.4 1,604 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom $533	Free Cancellation	Rating 6.7 7,573 reviews	Search British Airways flights
Iberia	PriceFrom $540	Free Cancellation	Rating 7.0 3,045 reviews	Search Iberia flights
SWISS	PriceFrom $567	Free Cancellation	Rating 7.5 1,809 reviews	Search SWISS flights
American Airlines	PriceFrom $574	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
TAP AIR PORTUGAL	PriceFrom $574	Free Cancellation	Rating 7.1 2,086 reviews	Search TAP AIR PORTUGAL flights
Lufthansa	PriceFrom $611	Free Cancellation	Rating 6.8 7,624 reviews	Search Lufthansa flights
United Airlines	PriceFrom $615	Free Cancellation	Rating 7.4 9,093 reviews	Search United Airlines flights

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Pinhao

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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.