How long does it take to fly to Porto?

Flight times from California to Porto vary, but if you’re flying out of San Francisco and flying into Porto (one of the most popular routes), then the duration is 14h 25m on average. Another popular route from California to Porto is flying from Los Angeles to Porto, which will take roughly 14h 45m. Keep in mind that layovers or delays could extend your travel time.

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 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, Iberia, and Delta 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 February 2026, 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.

$255 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.

6:00 pm - 10:00 pm

LAX

OPO

20h 00m

1 stop

5:00 am - 11:50 am

OPO

LAX

14h 50m

1 stop

$479Delta

Mon, Apr 13 - Wed, Apr 22

4:45 pm - 11:00 am

SFO

OPO

34h 15m

1 stop

9:30 am - 2:40 pm

OPO

SFO

37h 10m

1 stop

$486Scandinavian Airlines

Mon, Apr 27 - Sat, May 9

6:00 am - 7:40 am

LAX

OPO

17h 40m

2 stops

12:25 pm - 12:58 am

OPO

LAX

20h 33m

2 stops

$500American Airlines

Mon, Apr 13 - Wed, Apr 22

2:35 pm - 4:00 pm

LAX

OPO

17h 25m

2 stops

8:20 am - 7:46 pm

OPO

LAX

19h 26m

2 stops

$501American Airlines

Mon, Apr 20 - Tue, Apr 28

6:05 am - 9:45 am

ONT

OPO

19h 40m

2 stops

12:35 pm - 9:58 pm

OPO

ONT

41h 23m

2 stops

$511United Airlines

Tue, Apr 21 - Wed, Apr 29

2:42 pm - 8:00 pm

SNA

OPO

21h 18m

2 stops

8:40 pm - 8:50 pm

OPO

SNA

56h 10m

2 stops

$517Iberia

Tue, Apr 21 - Wed, Apr 29

8:55 pm - 9:05 am

LAX

OPO

28h 10m

1 stop

8:40 pm - 6:20 pm

OPO

LAX

29h 40m

1 stop

$537British Airways

Tue, Apr 7 - Tue, Apr 14

8:55 pm - 9:05 am

LAX

OPO

28h 10m

1 stop

9:10 pm - 2:55 pm

OPO

LAX

25h 45m

1 stop

$538British Airways

Tue, Apr 7 - Mon, Apr 13

5:50 pm - 8:00 pm

LAX

OPO

18h 10m

1 stop

8:40 pm - 4:05 pm

OPO

LAX

27h 25m

1 stop

$545Iberia

Mon, Apr 13 - Thu, Apr 30

9:00 am - 9:45 am

BUR

OPO

16h 45m

2 stops

12:35 pm - 1:56 pm

OPO

BUR

33h 21m

3 stops

$600United Airlines

Tue, Apr 21 - Wed, Apr 29

Delta flights from California to Porto

Our best Delta deals on California to Porto flight tickets

Delta

Apr 13

LAX6:00 pmLos Angeles

20h 00m

1 stop

OPO10:00 pmPorto

Apr 22

OPO5:00 amPorto

14h 50m

1 stop

LAX11:50 amLos Angeles

$479

Delta

Apr 13

LAX6:00 pmLos Angeles

20h 00m

1 stop

OPO10:00 pmPorto

Apr 30

OPO5:00 amPorto

18h 25m

2 stops

LAX3:25 pmLos Angeles

$489

Delta

Apr 8

LAX9:00 amLos Angeles

17h 40m

2 stops

OPO10:40 amPorto

Apr 15

OPO5:00 amPorto

20h 45m

2 stops

LAX5:45 pmLos Angeles

$499

Scandinavian Airlines flights from California to Porto

Our best Scandinavian Airlines deals on California to Porto flight tickets

Scandinavian Airlines

Apr 27

SFO4:45 pmSan Francisco

34h 15m

1 stop

OPO11:00 amPorto

May 9

OPO9:30 amPorto

37h 10m

1 stop

SFO2:40 pmSan Francisco

$486

Scandinavian Airlines

Mar 8

SFO5:40 pmSan Francisco

16h 05m

1 stop

OPO4:45 pmPorto

Mar 23

OPO5:35 pmPorto

29h 00m

1 stop

SFO3:35 pmSan Francisco

$494

Scandinavian Airlines

Apr 28

LAX4:45 pmLos Angeles

17h 35m

1 stop

OPO6:20 pmPorto

May 5

OPO5:00 amPorto

20h 41m

2 stops

LAX5:41 pmLos Angeles

$495

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/13

6:00 pm-10:00 pm

1 stop20h 00m

Porto

Wed 4/22

5:00 am-11:50 am

1 stop14h 50m

$479

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Mon 4/27

4:45 pm-11:00 am

1 stop34h 15m

Porto

Sat 5/9

9:30 am-2:40 pm

1 stop37h 10m

$486

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/13

6:00 am-7:40 am

2 stops17h 40m

Porto

Wed 4/22

12:25 pm-12:58 am

2 stops20h 33m

$500

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/20

2:35 pm-4:00 pm

2 stops17h 25m

Porto

Tue 4/28

8:20 am-7:46 pm

2 stops19h 26m

$501

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 4/21

6:05 am-9:45 am

2 stops19h 40m

Porto

Wed 4/29

12:35 pm-9:58 pm

2 stops41h 23m

$511

Santa AnaPorto

SNA - OPO

SNAOPO

Santa Ana J. Wayne/Orange Cnty

Tue 4/21

2:42 pm-8:00 pm

2 stops21h 18m

Porto

Wed 4/29

8:40 pm-8:50 pm

2 stops56h 10m

$517

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Tue 4/7

8:55 pm-9:05 am

1 stop28h 10m

Porto

Tue 4/14

8:40 pm-6:20 pm

1 stop29h 40m

$537

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Tue 4/7

8:55 pm-9:05 am

1 stop28h 10m

Porto

Mon 4/13

9:10 pm-2:55 pm

1 stop25h 45m

$538

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/13

5:50 pm-8:00 pm

1 stop18h 10m

Porto

Thu 4/30

8:40 pm-4:05 pm

1 stop27h 25m

$545

BurbankPorto

BUR - OPO

BUROPO

Burbank Bob Hope

Tue 4/21

9:00 am-9:45 am

2 stops16h 45m

Porto

Wed 4/29

12:35 pm-1:56 pm

3 stops33h 21m

$600

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 $857 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 3% 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	14h 25m
Direct flights	None

The fastest flight from California to Porto takes 14h 25m

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 February 2026, 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 $263	Free Cancellation	Rating 0.0	Search LEVEL flights
KLM	PriceFrom $366	Free Cancellation	Rating 7.7 1,455 reviews	Search KLM flights
TAP AIR PORTUGAL	PriceFrom $431	Free Cancellation	Rating 7.1 2,143 reviews	Search TAP AIR PORTUGAL flights
Iberia	PriceFrom $451	Free Cancellation	Rating 7.0 3,116 reviews	Search Iberia flights
Scandinavian Airlines	PriceFrom $480	Free Cancellation	Rating 7.3 1,685 reviews	Search Scandinavian Airlines flights
Air Transat	PriceFrom $487	Free Cancellation	Rating 7.7 509 reviews	Search Air Transat flights
Delta	PriceFrom $489	Free Cancellation	Rating 7.9 8,208 reviews	Search Delta flights
British Airways	PriceFrom $533	Free Cancellation	Rating 6.7 7,752 reviews	Search British Airways flights
Lufthansa	PriceFrom $544	Free Cancellation	Rating 6.8 7,786 reviews	Search Lufthansa flights
American Airlines	PriceFrom $574	Free Cancellation	Rating 7.2 11,292 reviews	Search American 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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Azores Airport

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Cheap flights from California to Porto from $255

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 4/19. 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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Delta flights from California to Porto

Our best Delta deals on California to Porto flight tickets

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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

Direct flights

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?

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

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

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

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

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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