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 40% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 12 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

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 50m on average. Another popular route from California to Porto is flying from San Francisco to Porto, which will take roughly 14h 25m. Keep in mind that layovers or delays could extend your travel time.

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

United Airlines, LEVEL, and Air Canada are the most popular carriers operating 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 March 2026, there are 12 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.

$276 Cheap Flights from California to Porto in 2026

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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 - 11:00 am

LAX

OPO

31h 50m

1 stop

11:50 am - 4:50 pm

OPO

LAX

37h 00m

1 stop

$567Scandinavian Airlines

Mon, Apr 13 - Wed, Apr 29

4:45 pm - 5:00 pm

LAX

OPO

16h 15m

1 stop

6:00 pm - 1:45 pm

OPO

LAX

27h 45m

1 stop

$576TAP AIR PORTUGAL

Tue, Apr 7 - Mon, Apr 20

7:10 pm - 11:00 am

LAX

OPO

31h 50m

1 stop

11:50 am - 4:50 pm

OPO

LAX

37h 00m

1 stop

$585Scandinavian Airlines

Mon, Apr 13 - Wed, Apr 29

3:15 pm - 11:50 pm

SFO

OPO

24h 35m

2 stops

9:15 am - 1:15 pm

OPO

SFO

36h 00m

2 stops

$588Multiple Airlines

Wed, Apr 22 - Mon, Apr 27

6:00 pm - 10:00 pm

LAX

OPO

20h 00m

1 stop

5:00 am - 11:50 am

OPO

LAX

14h 50m

1 stop

$594Delta

Mon, Apr 20 - Tue, May 5

6:00 pm - 10:00 pm

LAX

OPO

20h 00m

1 stop

11:25 am - 11:50 am

OPO

LAX

32h 25m

1 stop

$595Delta

Mon, Apr 13 - Mon, Apr 27

3:15 pm - 11:55 pm

SFO

OPO

24h 40m

2 stops

10:40 pm - 1:15 pm

OPO

SFO

22h 35m

2 stops

$602Multiple Airlines

Tue, Apr 21 - Mon, Apr 27

8:15 am - 7:00 am

LAX

OPO

14h 45m

1 stop

2:25 pm - 9:30 pm

OPO

LAX

15h 05m

1 stop

$603United Airlines

Wed, Aug 19 - Wed, Sep 2

7:45 am - 11:45 am

SNA

OPO

20h 00m

2 stops

8:20 am - 9:13 pm

OPO

SNA

20h 53m

2 stops

$615American Airlines

Tue, Apr 14 - Tue, Apr 21

5:45 am - 9:45 am

ONT

OPO

20h 00m

2 stops

9:00 am - 9:59 pm

OPO

ONT

20h 59m

2 stops

$616United Airlines

Sun, Aug 16 - Wed, Sep 16

TAP AIR PORTUGAL flights from California to Porto

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

TAP AIR PORTUGAL

Apr 7

LAX4:45 pmLos Angeles

16h 15m

1 stop

OPO5:00 pmPorto

Apr 20

OPO6:00 pmPorto

27h 45m

1 stop

LAX1:45 pmLos Angeles

$576

TAP AIR PORTUGAL

Apr 24

LAX4:40 pmLos Angeles

24h 00m

1 stop

OPO12:40 amPorto

May 5

OPO7:00 amPorto

14h 45m

1 stop

LAX1:45 pmLos Angeles

$589

TAP AIR PORTUGAL

Apr 10

LAX4:40 pmLos Angeles

24h 00m

1 stop

OPO12:40 amPorto

Apr 25

OPO7:00 amPorto

15h 40m

1 stop

LAX2:40 pmLos Angeles

$601

United Airlines flights from California to Porto

Our best United Airlines deals on California to Porto flight tickets

United Airlines

Aug 19

LAX8:15 amLos Angeles

14h 45m

1 stop

OPO7:00 amPorto

Sep 2

OPO2:25 pmPorto

15h 05m

1 stop

LAX9:30 pmLos Angeles

$603

United Airlines

Aug 19

LAX5:45 amLos Angeles

20h 00m

3 stops

OPO9:45 amPorto

Sep 2

OPO2:25 pmPorto

15h 05m

1 stop

LAX9:30 pmLos Angeles

$609

United Airlines

Aug 16

ONT5:45 amOntario

20h 00m

2 stops

OPO9:45 amPorto

Sep 16

OPO9:00 amPorto

20h 59m

2 stops

ONT9:59 pmOntario

$616

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/13

7:10 pm-11:00 am

1 stop31h 50m

Porto

Wed 4/29

11:50 am-4:50 pm

1 stop37h 00m

$567

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Tue 4/7

4:45 pm-5:00 pm

1 stop16h 15m

Porto

Mon 4/20

6:00 pm-1:45 pm

1 stop27h 45m

$576

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/13

7:10 pm-11:00 am

1 stop31h 50m

Porto

Wed 4/29

11:50 am-4:50 pm

1 stop37h 00m

$585

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Wed 4/22

3:15 pm-11:50 pm

2 stops24h 35m

Porto

Mon 4/27

9:15 am-1:15 pm

2 stops36h 00m

$588

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/20

6:00 pm-10:00 pm

1 stop20h 00m

Porto

Tue 5/5

5:00 am-11:50 am

1 stop14h 50m

$594

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/13

6:00 pm-10:00 pm

1 stop20h 00m

Porto

Mon 4/27

11:25 am-11:50 am

1 stop32h 25m

$595

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Tue 4/21

3:15 pm-11:55 pm

2 stops24h 40m

Porto

Mon 4/27

10:40 pm-1:15 pm

2 stops22h 35m

$602

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Wed 8/19

8:15 am-7:00 am

1 stop14h 45m

Porto

Wed 9/2

2:25 pm-9:30 pm

1 stop15h 05m

$603

Santa AnaPorto

SNA - OPO

SNAOPO

Santa Ana J. Wayne/Orange Cnty

Tue 4/14

7:45 am-11:45 am

2 stops20h 00m

Porto

Tue 4/21

8:20 am-9:13 pm

2 stops20h 53m

$615

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Sun 8/16

5:45 am-9:45 am

2 stops20h 00m

Porto

Wed 9/16

9:00 am-9:59 pm

2 stops20h 59m

$616

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 $625. If you aren’t able to travel during the month of February, then book flights to Porto from California during January instead. Flights to Porto in January, while not as cheap as those in February, still average around $671.

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 $855 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 $668 on momondo.

Can stopping save me money on California to Porto flights?

You could potentially save up to 6% 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 March 2026, there are 12 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 $263	Free Cancellation	Rating 0.0	Search LEVEL flights
KLM	PriceFrom $366	Free Cancellation	Rating 7.7 1,461 reviews	Search KLM flights
TAP AIR PORTUGAL	PriceFrom $431	Free Cancellation	Rating 7.1 2,155 reviews	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	PriceFrom $480	Free Cancellation	Rating 7.3 1,702 reviews	Search Scandinavian Airlines flights
Delta	PriceFrom $495	Free Cancellation	Rating 7.9 8,241 reviews	Search Delta flights
British Airways	PriceFrom $533	Free Cancellation	Rating 6.7 7,773 reviews	Search British Airways flights
Iberia	PriceFrom $545	Free Cancellation	Rating 7.0 3,130 reviews	Search Iberia flights
Lufthansa	PriceFrom $550	Free Cancellation	Rating 6.8 7,820 reviews	Search Lufthansa flights
American Airlines	PriceFrom $574	Free Cancellation	Rating 7.1 11,378 reviews	Search American Airlines flights
United Airlines	PriceFrom $593	Free Cancellation	Rating 7.4 9,377 reviews	Search United Airlines flights

Vila Nova de Gaia

Coimbra

Matosinhos

Braga

Aveiro

Esposende

Lamego

Guimarães

Pinhao

Chaves

Espinho

Arcos de Valdevez

Viseu

Ponte de Lima

Curia

Penafiel

Mesao Frio

Mira

Baiao

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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Cheap flights from California to Porto from $275

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 8/18. 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

United Airlines flights from California to Porto

Our best United Airlines 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 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

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

Fastest flight time

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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

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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.

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