What airlines fly to Porto?

TAP AIR PORTUGAL, United Airlines and Delta are the top three most popular airlines that fly to Porto from California according to our data. TAP AIR PORTUGAL is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 11 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 Santa Ana and flying into Porto (one of the most popular routes), then the duration is 13h 05m on average. Another popular route from California to Porto is flying from San Francisco to Porto, which will take roughly 14h 30m. 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, Lufthansa, 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 September 2026, there are 11 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.

$266 Cheap Flights from California to Porto in 2026

Discover deals from 900+ travel sites with momondo.

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.

4:20 pm - 12:40 amSFO San Francisco-OPO Porto

24h 20m1 stop Lisbon Humberto Delgado

6:00 pm - 3:45 pmOPO Porto-SFO San Francisco

28h 45m1 stop Lisbon Humberto Delgado

$654TAP AIR PORTUGAL

Tue, Oct 13 - Tue, Oct 27

4:35 pm - 8:25 pmSFO San Francisco-OPO Porto

19h 50m1 stop Lisbon Humberto Delgado

5:00 am - 3:45 pmOPO Porto-SFO San Francisco

17h 45m1 stop Lisbon Humberto Delgado

$655TAP AIR PORTUGAL

Wed, Oct 21 - Wed, Oct 28

4:45 pm - 11:05 amSFO San Francisco-OPO Porto

34h 20m1 stop Kastrup Copenhagen

5:45 pm - 2:50 pmOPO Porto-SFO San Francisco

29h 05m1 stop Kastrup Copenhagen

$679Scandinavian Airlines

Mon, Feb 8 - Fri, Feb 12

4:45 pm - 5:05 pmSFO San Francisco-OPO Porto

16h 20m1 stop Kastrup Copenhagen

5:50 pm - 3:50 pmOPO Porto-SFO San Francisco

29h 00m1 stop Kastrup Copenhagen

$683Scandinavian Airlines

Thu, Oct 22 - Thu, Oct 29

4:50 pm - 6:50 amSAN San Diego-OPO Porto

30h 00m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

1:45 pm - 3:45 pmOPO Porto-SAN San Diego

34h 00m1 stop Munich Franz Josef Strauss

$715Multiple Airlines

Sun, Oct 18 - Tue, Nov 3

5:15 pm - 11:25 pmSAN San Diego-OPO Porto

22h 10m1 stop Munich Franz Josef Strauss

1:45 pm - 3:45 pmOPO Porto-SAN San Diego

34h 00m1 stop Munich Franz Josef Strauss

$716Lufthansa

Sun, Oct 18 - Tue, Nov 3

11:10 am - 6:50 amSFO San Francisco-OPO Porto

35h 40m1 stop Montreal Pierre Elliott Trudeau Intl

12:05 pm - 4:30 pmOPO Porto-SFO San Francisco

36h 25m1 stop Zurich

$723Multiple Airlines

Sun, Oct 18 - Tue, Nov 3

7:25 pm - 11:15 amSFO San Francisco-OPO Porto

31h 50m1 stop Zurich

7:20 pm - 4:30 pmOPO Porto-SFO San Francisco

29h 10m1 stop Zurich

$728SWISS

Tue, Feb 23 - Thu, Mar 4

7:35 pm - 7:55 amSFO San Francisco-OPO Porto

28h 20m1 stop Zurich

12:05 pm - 4:30 pmOPO Porto-SFO San Francisco

36h 25m1 stop Zurich

$736SWISS

Sun, Oct 18 - Tue, Nov 3

11:21 am - 12:50 pmSAN San Diego-OPO Porto

17h 29m2 stops Denver Intl Munich Franz Josef Strauss

6:00 am - 5:59 pmOPO Porto-SAN San Diego

19h 59m2 stops Frankfurt am Main Vancouver Intl

$744Lufthansa

Tue, Nov 17 - Thu, Dec 3

Cheap last minute flights

Enter your travel dates to find the best prices.

10:20 am - 11:00 pmLAX Los Angeles Los Angeles-OPO Porto

28h 40m2 stops Casablanca Mohamed V Madrid Barajas

7:35 am - 8:20 amOPO Porto-LAX Los Angeles Los Angeles

32h 45m2 stops Madrid Barajas Casablanca Mohamed V

$827Multiple Airlines

Fri, Sep 11 - Sat, Sep 26

10:20 am - 10:45 pmLAX Los Angeles Los Angeles-OPO Porto

28h 25m3 stops Casablanca Mohamed V Madrid Barajas Lisbon Humberto Delgado

5:05 am - 8:20 amOPO Porto-LAX Los Angeles Los Angeles

35h 15m3 stops Lisbon Humberto Delgado Madrid Barajas Casablanca Mohamed V

$843Multiple Airlines

Fri, Sep 11 - Sat, Sep 26

4:45 pm - 5:10 pmLAX Los Angeles Los Angeles-OPO Porto

16h 25m1 stop Lisbon Humberto Delgado

7:00 am - 2:45 pmOPO Porto-LAX Los Angeles Los Angeles

15h 45m1 stop Lisbon Humberto Delgado

$902TAP AIR PORTUGAL

Tue, Sep 8 - Tue, Sep 15

7:20 pm - 9:40 pmSFO San Francisco-OPO Porto

18h 20m1 stop Lajes

10:30 pm - 2:30 pmOPO Porto-SFO San Francisco

24h 00m1 stop Lisbon Humberto Delgado

$945TAP AIR PORTUGAL

Tue, Sep 8 - Wed, Sep 16

7:00 am - 7:00 amSAN San Diego-OPO Porto

16h 00m1 stop Montreal Pierre Elliott Trudeau Intl

12:15 pm - 5:46 pmOPO Porto-SAN San Diego

37h 31m3 stops Montreal Pierre Elliott Trudeau Intl New York LaGuardia Houston George Bush Intcntl

$1,040United Airlines

Wed, Sep 9 - Tue, Sep 15

11:39 pm - 7:00 amSFO San Francisco-OPO Porto

23h 21m1 stop Montreal Pierre Elliott Trudeau Intl

11:20 am - 11:25 amOPO Porto-SFO San Francisco

32h 05m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,040United Airlines

Tue, Sep 8 - Wed, Sep 16

7:00 am - 7:00 amSAN San Diego-OPO Porto

16h 00m1 stop Montreal Pierre Elliott Trudeau Intl

12:15 pm - 8:36 pmOPO Porto-SAN San Diego

16h 21m1 stop Montreal Pierre Elliott Trudeau Intl

$1,054Air Canada

Wed, Sep 9 - Tue, Sep 22

7:00 am - 7:00 amSAN San Diego-OPO Porto

16h 00m1 stop Montreal Pierre Elliott Trudeau Intl

11:50 am - 8:36 pmOPO Porto-SAN San Diego

16h 46m1 stop Montreal Pierre Elliott Trudeau Intl

$1,054Air Canada

Wed, Sep 9 - Thu, Sep 24

11:58 am - 3:25 pmSFO San Francisco-OPO Porto

19h 27m2 stops Los Angeles Los Angeles Paris Charles de Gaulle

5:00 am - 6:09 pmOPO Porto-SFO San Francisco

21h 09m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$1,058Delta

Tue, Sep 8 - Wed, Sep 16

10:29 am - 3:25 pmSFO San Francisco-OPO Porto

20h 56m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

5:00 am - 4:24 pmOPO Porto-SFO San Francisco

19h 24m2 stops Amsterdam Schiphol Salt Lake City

$1,058Delta

Tue, Sep 8 - Wed, Sep 16

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Lufthansa flights from California to Porto

Our best Lufthansa deals on California to Porto flight tickets

Lufthansa

Oct 18

SAN5:15 pmSan Diego

22h 10m

1 stop

OPO11:25 pmPorto

Nov 3

OPO1:45 pmPorto

34h 00m

1 stop

SAN3:45 pmSan Diego

$716

Lufthansa

Nov 17

SAN11:21 amSan Diego

17h 29m

2 stops

OPO12:50 pmPorto

Dec 3

OPO6:00 amPorto

19h 59m

2 stops

SAN5:59 pmSan Diego

$744

Lufthansa

Mar 2

SMF10:25 amSacramento Intl

28h 00m

2 stops

OPO10:25 pmPorto

Mar 5

OPO6:00 amPorto

22h 47m

2 stops

SMF8:47 pmSacramento Intl

$748

Delta flights from California to Porto

Our best Delta deals on California to Porto flight tickets

Delta

Nov 15

SAN7:32 amSan Diego

16h 43m

1 stop

OPO8:15 amPorto

Dec 2

OPO11:15 amPorto

32h 55m

1 stop

SAN12:10 pmSan Diego

$738

Delta

Oct 18

SAN10:05 pmSan Diego

28h 25m

1 stop

OPO10:30 amPorto

Nov 3

OPO5:00 amPorto

15h 10m

1 stop

SAN12:10 pmSan Diego

$739

Delta

Nov 2

SMF7:18 pmSacramento Intl

52h 57m

2 stops

OPO8:15 amPorto

Nov 18

OPO5:00 amPorto

37h 53m

2 stops

SMF10:53 amSacramento Intl

$742

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Tue 10/13

4:20 pm-12:40 am

1 stop24h 20m

Porto

Tue 10/27

6:00 pm-3:45 pm

1 stop28h 45m

$654

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Wed 10/21

4:35 pm-8:25 pm

1 stop19h 50m

Porto

Wed 10/28

5:00 am-3:45 pm

1 stop17h 45m

$655

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Mon 2/8

4:45 pm-11:05 am

1 stop34h 20m

Porto

Fri 2/12

5:45 pm-2:50 pm

1 stop29h 05m

$679

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Thu 10/22

4:45 pm-5:05 pm

1 stop16h 20m

Porto

Thu 10/29

5:50 pm-3:50 pm

1 stop29h 00m

$683

San DiegoPorto

SAN San Diego - OPO Porto

SANOPO

San Diego

Sun 10/18

4:50 pm-6:50 am

2 stops30h 00m

Porto

Tue 11/3

1:45 pm-3:45 pm

1 stop34h 00m

$715

San DiegoPorto

SAN San Diego - OPO Porto

SANOPO

San Diego

Sun 10/18

5:15 pm-11:25 pm

1 stop22h 10m

Porto

Tue 11/3

1:45 pm-3:45 pm

1 stop34h 00m

$716

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Sun 10/18

11:10 am-6:50 am

1 stop35h 40m

Porto

Tue 11/3

12:05 pm-4:30 pm

1 stop36h 25m

$723

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Tue 2/23

7:25 pm-11:15 am

1 stop31h 50m

Porto

Thu 3/4

7:20 pm-4:30 pm

1 stop29h 10m

$728

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Sun 10/18

7:35 pm-7:55 am

1 stop28h 20m

Porto

Tue 11/3

12:05 pm-4:30 pm

1 stop36h 25m

$736

Quickest round-trip

San DiegoPorto

SAN San Diego - OPO Porto

SANOPO

San Diego

Tue 11/17

11:21 am-12:50 pm

2 stops17h 29m

Porto

Thu 12/3

6:00 am-5:59 pm

2 stops19h 59m

$744

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 $690.

How far in advance should I book a flight from California 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 $853 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 $816 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

Best Price Found	$266
Fastest flight time	13h 05m
Direct flights	None

The best one-way flight to Porto from California in the past 72 hours is $266. The best round-trip flight deal from California to Porto found on momondo in the last 72 hours is $654.

The fastest flight from California to Porto takes 13h 05m

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 September 2026, there are 11 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
TAP AIR PORTUGAL	PriceFrom $431	Free Cancellation	Rating 7.2 2,383 reviews	Search TAP AIR PORTUGAL flights
KLM	PriceFrom $476	Free Cancellation	Rating 7.8 1,569 reviews	Search KLM flights
Scandinavian Airlines	PriceFrom $480	Free Cancellation	Rating 7.4 1,979 reviews	Search Scandinavian Airlines flights
Delta	PriceFrom $533	Free Cancellation	Rating 7.8 8,573 reviews	Search Delta flights
Lufthansa	PriceFrom $544	Free Cancellation	Rating 6.8 8,223 reviews	Search Lufthansa flights
Iberia	PriceFrom $545	Free Cancellation	Rating 7.0 3,247 reviews	Search Iberia flights
United Airlines	PriceFrom $562	Free Cancellation	Rating 7.4 10,171 reviews	Search United Airlines flights
SWISS	PriceFrom $623	Free Cancellation	Rating 7.5 2,064 reviews	Search SWISS flights
Turkish Airlines	PriceFrom $654	Free Cancellation	Rating 7.4 4,480 reviews	Search Turkish Airlines flights
Air Canada	PriceFrom $830	Free Cancellation	Rating 7.1 11,586 reviews	Search Air Canada flights

Coimbra

Vila Nova de Gaia

Aveiro

Braga

Pinhao

Matosinhos

Esposende

Chaves

Arcos de Valdevez

Viseu

Espinho

Guimarães

Lamego

Ponte de Lima

Mesao Frio

Penafiel

Caminha

Baiao

Mira

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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Faro Airport

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Azores Airport

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Cheap flights from California to Porto from $266

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 10/19. 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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Lufthansa flights from California to Porto

Our best Lufthansa deals on California to Porto flight tickets

Delta flights from California to Porto

Our best Delta 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 from California 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

Best Price Found

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

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