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.

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 14h 30m on average. Another popular route from California to Porto is flying from San Francisco to Porto, which will take roughly 15h. 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, SWISS, 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 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.

$346 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.

8:55 pm - 9:20 pm

LAX

OPO

16h 25m

1 stop

10:00 pm - 6:10 pm

OPO

LAX

28h 10m

1 stop

$633Iberia

lun., jun. 1 - mié., jun. 17

8:10 pm - 9:45 am

LAX

OPO

29h 35m

1 stop

10:45 am - 11:40 am

OPO

LAX

32h 55m

1 stop

$672Turkish Airlines

lun., abr. 27 - mié., may. 20

1:25 pm - 9:45 am

LAX

OPO

36h 20m

1 stop

6:10 am - 6:15 pm

OPO

LAX

20h 05m

1 stop

$677Turkish Airlines

lun., abr. 27 - jue., may. 14

4:45 pm - 8:45 am

SFO

OPO

32h 00m

1 stop

10:30 am - 2:40 pm

OPO

SFO

36h 10m

1 stop

$699Scandinavian Airlines

jue., may. 7 - jue., may. 21

7:00 am - 10:30 am

SAN

OPO

19h 30m

1 stop

4:20 pm - 11:50 am

OPO

SAN

27h 30m

1 stop

$761KLM

mié., oct. 14 - mié., oct. 21

1:05 pm - 3:25 pm

SAN

OPO

18h 20m

2 stops

7:10 pm - 11:50 am

OPO

SAN

24h 40m

1 stop

$765Multiple Airlines

mié., oct. 14 - mié., oct. 21

1:40 pm - 3:30 pm

SAN

OPO

17h 50m

1 stop

11:25 am - 11:50 am

OPO

SAN

32h 25m

1 stop

$766Delta

mar., oct. 13 - lun., oct. 19

1:05 pm - 3:25 pm

SAN

OPO

18h 20m

2 stops

5:00 am - 5:59 pm

OPO

SAN

20h 59m

2 stops

$775Delta

mié., oct. 14 - mié., oct. 21

9:00 pm - 10:25 am

SNA

OPO

29h 25m

1 stop

5:00 am - 6:05 pm

OPO

SNA

21h 05m

2 stops

$842KLM

sáb., ago. 15 - vie., ago. 28

8:22 pm - 7:00 am

BUR

OPO

50h 38m

2 stops

10:45 am - 11:49 am

OPO

BUR

33h 04m

3 stops

$1,251Multiple Airlines

lun., jun. 1 - lun., jun. 8

Delta flights from California to Porto

Our best Delta deals on California to Porto flight tickets

Delta

Oct 14

SAN7:00 amSan Diego

19h 30m

1 stop

OPO10:30 amPorto

Oct 19

OPO11:25 amPorto

32h 25m

1 stop

SAN11:50 amSan Diego

$761

Delta

Oct 13

SAN1:40 pmSan Diego

17h 50m

1 stop

OPO3:30 pmPorto

Oct 19

OPO11:25 amPorto

32h 25m

1 stop

SAN11:50 amSan Diego

$766

Delta

Oct 14

SAN1:05 pmSan Diego

18h 20m

2 stops

OPO3:25 pmPorto

Oct 21

OPO5:00 amPorto

20h 59m

2 stops

SAN5:59 pmSan Diego

$775

LEVEL flights from California to Porto

Our best LEVEL deals on California to Porto flight tickets

LEVEL

May 2

LAX8:55 pmLos Angeles

32h 20m

1 stop

OPO1:15 pmPorto

May 12

OPO10:00 pmPorto

28h 10m

1 stop

LAX6:10 pmLos Angeles

$791

LEVEL

May 3

LAX7:55 pmLos Angeles

17h 25m

1 stop

OPO9:20 pmPorto

May 7

OPO10:00 pmPorto

28h 10m

1 stop

LAX6:10 pmLos Angeles

$801

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

lun. 6/1

8:55 pm-9:20 pm

1 stop16h 25m

Porto

mié. 6/17

10:00 pm-6:10 pm

1 stop28h 10m

$633

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

lun. 4/27

8:10 pm-9:45 am

1 stop29h 35m

Porto

mié. 5/20

10:45 am-11:40 am

1 stop32h 55m

$672

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

lun. 4/27

1:25 pm-9:45 am

1 stop36h 20m

Porto

jue. 5/14

6:10 am-6:15 pm

1 stop20h 05m

$677

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

jue. 5/7

4:45 pm-8:45 am

1 stop32h 00m

Porto

jue. 5/21

10:30 am-2:40 pm

1 stop36h 10m

$699

San DiegoPorto

SAN - OPO

SANOPO

San Diego

mié. 10/14

7:00 am-10:30 am

1 stop19h 30m

Porto

mié. 10/21

4:20 pm-11:50 am

1 stop27h 30m

$761

San DiegoPorto

SAN - OPO

SANOPO

San Diego

mié. 10/14

1:05 pm-3:25 pm

2 stops18h 20m

Porto

mié. 10/21

7:10 pm-11:50 am

1 stop24h 40m

$765

San DiegoPorto

SAN - OPO

SANOPO

San Diego

mar. 10/13

1:40 pm-3:30 pm

1 stop17h 50m

Porto

lun. 10/19

11:25 am-11:50 am

1 stop32h 25m

$766

Quickest round-trip

San DiegoPorto

SAN - OPO

SANOPO

San Diego

mié. 10/14

1:05 pm-3:25 pm

2 stops18h 20m

Porto

mié. 10/21

5:00 am-5:59 pm

2 stops20h 59m

$775

Santa AnaPorto

SNA - OPO

SNAOPO

Santa Ana J. Wayne/Orange Cnty

sáb. 8/15

9:00 pm-10:25 am

1 stop29h 25m

Porto

vie. 8/28

5:00 am-6:05 pm

2 stops21h 05m

$842

BurbankPorto

BUR - OPO

BUROPO

Burbank Bob Hope

lun. 6/1

8:22 pm-7:00 am

2 stops50h 38m

Porto

lun. 6/8

10:45 am-11:49 am

3 stops33h 04m

$1,251

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 $863 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 $700 on momondo.

Can stopping save me money on California to Porto flights?

You could potentially save up to 31% 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 30m
Direct flights	None

The fastest flight from California to Porto takes 14h 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 7.8 1,502 reviews	Search KLM flights
TAP AIR PORTUGAL	PriceFrom $431	Free Cancellation	Rating 7.1 2,210 reviews	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	PriceFrom $460	Free Cancellation	Rating 7.3 1,751 reviews	Search Scandinavian Airlines flights
Delta	PriceFrom $489	Free Cancellation	Rating 7.9 8,423 reviews	Search Delta flights
British Airways	PriceFrom $533	Free Cancellation	Rating 6.7 7,891 reviews	Search British Airways flights
Lufthansa	PriceFrom $544	Free Cancellation	Rating 6.8 7,930 reviews	Search Lufthansa flights
Iberia	PriceFrom $545	Free Cancellation	Rating 7.0 3,182 reviews	Search Iberia flights
American Airlines	PriceFrom $546	Free Cancellation	Rating 7.1 11,612 reviews	Search American Airlines flights
United Airlines	PriceFrom $593	Free Cancellation	Rating 7.4 9,604 reviews	Search United Airlines flights

Vila Nova de Gaia

Coimbra

Braga

Aveiro

Matosinhos

Lamego

Esposende

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

lun. 5/18

lun. 5/25

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 $345

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 10/13. 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

LEVEL flights from California to Porto

Our best LEVEL 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