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 30m on average. Another popular route from California to Porto is flying from San Francisco to Porto, which will take roughly 14h 50m. 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 37% 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.

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

British Airways, United Airlines, and Iberia 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 April 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.

$343 Cheap Flights from California to Porto in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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 - 5:00 pm

LAX

OPO

15h 00m

1 stop

9:15 pm - 2:40 pm

OPO

LAX

25h 25m

1 stop

$625TAP AIR PORTUGAL

Sat, Apr 18 - Fri, May 1

6:00 pm - 4:00 pm

LAX

OPO

14h 00m

1 stop

5:05 am - 1:25 pm

OPO

LAX

16h 20m

1 stop

$629TAP AIR PORTUGAL

Sat, Apr 18 - Fri, May 1

6:00 pm - 5:00 pm

LAX

OPO

15h 00m

1 stop

10:30 pm - 2:40 pm

OPO

LAX

24h 10m

1 stop

$630TAP AIR PORTUGAL

Sat, Apr 18 - Fri, May 1

1:25 pm - 9:45 am

LAX

OPO

36h 20m

1 stop

10:45 am - 11:40 am

OPO

LAX

32h 55m

1 stop

$640Turkish Airlines

Mon, Apr 27 - Wed, May 20

6:45 pm - 3:45 pm

SFO

OPO

37h 00m

1 stop

6:10 am - 10:50 am

OPO

SFO

36h 40m

1 stop

$641Turkish Airlines

Wed, May 6 - Thu, May 14

10:00 am - 5:05 pm

SAN

OPO

47h 05m

2 stops

5:55 pm - 6:00 pm

OPO

SAN

32h 05m

2 stops

$772Scandinavian Airlines

Fri, Aug 28 - Fri, Sep 4

10:40 pm - 7:00 am

SAN

OPO

24h 20m

2 stops

11:50 am - 10:10 pm

OPO

SAN

42h 20m

2 stops

$777Air Canada

Mon, Aug 17 - Thu, Sep 3

6:35 am - 6:55 am

SAN

OPO

16h 20m

1 stop

11:50 am - 8:39 pm

OPO

SAN

16h 49m

1 stop

$787United Airlines

Tue, Aug 18 - Thu, Sep 3

7:41 pm - 7:00 am

SAN

OPO

27h 19m

2 stops

11:50 am - 8:39 pm

OPO

SAN

16h 49m

1 stop

$791Air Canada

Mon, Aug 17 - Thu, Sep 3

6:30 am - 6:55 am

SAN

OPO

16h 25m

2 stops

11:50 am - 8:39 pm

OPO

SAN

16h 49m

1 stop

$792United Airlines

Wed, Aug 19 - Thu, Sep 3

Delta flights from California to Porto

Our best Delta deals on California to Porto flight tickets

Delta

Oct 3

LAX2:10 pmLos Angeles

23h 50m

2 stops

OPO10:00 pmPorto

Oct 13

OPO11:35 amPorto

32h 15m

1 stop

LAX11:50 amLos Angeles

$797

Delta

Aug 17

SAN7:00 amSan Diego

19h 30m

1 stop

OPO10:30 amPorto

Sep 3

OPO5:00 amPorto

14h 50m

1 stop

SAN11:50 amSan Diego

$807

Delta

Aug 17

SAN6:20 amSan Diego

20h 10m

2 stops

OPO10:30 amPorto

Sep 1

OPO5:00 amPorto

14h 50m

1 stop

SAN11:50 amSan Diego

$811

TAP AIR PORTUGAL flights from California to Porto

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

TAP AIR PORTUGAL

Apr 18

LAX6:00 pmLos Angeles

15h 00m

1 stop

OPO5:00 pmPorto

May 1

OPO9:15 pmPorto

25h 25m

1 stop

LAX2:40 pmLos Angeles

$625

TAP AIR PORTUGAL

Apr 18

LAX6:00 pmLos Angeles

14h 00m

1 stop

OPO4:00 pmPorto

May 1

OPO5:05 amPorto

16h 20m

1 stop

LAX1:25 pmLos Angeles

$629

TAP AIR PORTUGAL

Apr 18

LAX6:00 pmLos Angeles

15h 00m

1 stop

OPO5:00 pmPorto

May 1

OPO10:30 pmPorto

24h 10m

1 stop

LAX2:40 pmLos Angeles

$630

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Sat 4/18

6:00 pm-5:00 pm

1 stop15h 00m

Porto

Fri 5/1

9:15 pm-2:40 pm

1 stop25h 25m

$625

Quickest round-trip

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Sat 4/18

6:00 pm-4:00 pm

1 stop14h 00m

Porto

Fri 5/1

5:05 am-1:25 pm

1 stop16h 20m

$629

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Sat 4/18

6:00 pm-5:00 pm

1 stop15h 00m

Porto

Fri 5/1

10:30 pm-2:40 pm

1 stop24h 10m

$630

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/27

1:25 pm-9:45 am

1 stop36h 20m

Porto

Wed 5/20

10:45 am-11:40 am

1 stop32h 55m

$640

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Wed 5/6

6:45 pm-3:45 pm

1 stop37h 00m

Porto

Thu 5/14

6:10 am-10:50 am

1 stop36h 40m

$641

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Fri 8/28

10:00 am-5:05 pm

2 stops47h 05m

Porto

Fri 9/4

5:55 pm-6:00 pm

2 stops32h 05m

$772

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Mon 8/17

10:40 pm-7:00 am

2 stops24h 20m

Porto

Thu 9/3

11:50 am-10:10 pm

2 stops42h 20m

$777

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 8/18

6:35 am-6:55 am

1 stop16h 20m

Porto

Thu 9/3

11:50 am-8:39 pm

1 stop16h 49m

$787

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Mon 8/17

7:41 pm-7:00 am

2 stops27h 19m

Porto

Thu 9/3

11:50 am-8:39 pm

1 stop16h 49m

$791

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Wed 8/19

6:30 am-6:55 am

2 stops16h 25m

Porto

Thu 9/3

11:50 am-8:39 pm

1 stop16h 49m

$792

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 $621. 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 $860 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 $619 on momondo.

Can stopping save me money on California to Porto flights?

You could potentially save up to 14% 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 30m
Direct flights	None

The fastest flight from California to Porto takes 13h 30m

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

Search flight deals

Frequently asked questions about flying 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 April 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 1,491 reviews	Search KLM flights
TAP AIR PORTUGAL	PriceFrom $431	Free Cancellation	Rating 7.1 2,190 reviews	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	PriceFrom $460	Free Cancellation	Rating 7.3 1,745 reviews	Search Scandinavian Airlines flights
Delta	PriceFrom $489	Free Cancellation	Rating 7.9 8,383 reviews	Search Delta flights
British Airways	PriceFrom $533	Free Cancellation	Rating 6.7 7,857 reviews	Search British Airways flights
Lufthansa	PriceFrom $544	Free Cancellation	Rating 6.8 7,894 reviews	Search Lufthansa flights
Iberia	PriceFrom $545	Free Cancellation	Rating 7.0 3,165 reviews	Search Iberia flights
American Airlines	PriceFrom $574	Free Cancellation	Rating 7.1 11,547 reviews	Search American Airlines flights
United Airlines	PriceFrom $593	Free Cancellation	Rating 7.4 9,548 reviews	Search United Airlines flights

Vila Nova de Gaia

Coimbra

Braga

Aveiro

Matosinhos

Esposende

Lamego

Chaves

Pinhao

Guimarães

Espinho

Arcos de Valdevez

Ponte de Lima

Viseu

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.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Thu 5/7

Thu 5/14

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Nearby airports

Airlines

Cabin classes

Other Portugal destinations

Other flights from California

Complete your trip

Feeling lucky

Airports servicing Portugal

Faro Airport

Lisbon Humberto Delgado Airport

Azores Airport

Madeira Airport

Algarve Airport

Cheap flights from California to Porto from $343

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 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from California to Porto

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Delta flights from California to Porto

Our best Delta deals on California to Porto flight tickets

TAP AIR PORTUGAL flights from California to Porto

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

momondo Fare Finder

Use the filters below to find and compare flights from California to Porto that are best for you.

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

Direct flights

Frequently asked questions about flying from California to Porto

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

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

Fly to other destinations from California

According to popular flight searches on momondo this year

Complete your trip to Porto

Explore popular destinations other users love

According to popular flight searches on momondo this year