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 Los Angeles to Porto, which will take roughly 14h 15m. Keep in mind that layovers or delays could extend your travel time.

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.

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 August 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.

$304 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.

4:45 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

$629Scandinavian Airlines

Thu, Oct 22 - Thu, Oct 29

5:45 pm - 5:00 pmSFO San Francisco-OPO Porto

16h 15m1 stop Kastrup Copenhagen

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

29h 05m1 stop Kastrup Copenhagen

$629Scandinavian Airlines

Wed, Oct 28 - Fri, Nov 6

8:25 pm - 6:30 pmSFO San Francisco-OPO Porto

15h 05m1 stop Zurich

6:15 am - 7:35 pmOPO Porto-SFO San Francisco

21h 20m1 stop Munich Franz Josef Strauss

$728Multiple Airlines

Wed, Oct 28 - Fri, Nov 6

4:40 pm - 12:50 pmSFO San Francisco-OPO Porto

36h 10m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

6:00 am - 4:06 pmOPO Porto-SFO San Francisco

18h 06m2 stops Frankfurt am Main Vancouver Intl

$730Multiple Airlines

Sat, Nov 28 - Wed, Dec 9

7:20 am - 10:25 amSAN San Diego-OPO Porto

19h 05m1 stop New York John F Kennedy Intl

11:15 am - 12:10 pmOPO Porto-SAN San Diego

32h 55m1 stop Amsterdam Schiphol

$731Delta

Sun, Oct 18 - Mon, Nov 2

10:00 pm - 10:30 amSAN San Diego-OPO Porto

28h 30m2 stops Detroit Metropolitan Wayne County New York LaGuardia

11:15 am - 12:10 pmOPO Porto-SAN San Diego

32h 55m1 stop Amsterdam Schiphol

$731Delta

Sun, Oct 18 - Mon, Nov 2

7:35 pm - 6:15 pmSFO San Francisco-OPO Porto

14h 40m1 stop Zurich

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

36h 25m1 stop Zurich

$735SWISS

Sun, Oct 18 - Wed, Nov 4

10:12 am - 11:45 amSAN San Diego-OPO Porto

17h 33m2 stops Chicago O'Hare Intl Madrid Barajas

8:20 am - 11:47 pmOPO Porto-SAN San Diego

23h 27m2 stops Madrid Barajas Chicago O'Hare Intl

$737Iberia

Wed, Nov 18 - Wed, Nov 25

7:35 pm - 11:25 amSFO San Francisco-OPO Porto

31h 50m1 stop Zurich

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

36h 25m1 stop Zurich

$771SWISS

Thu, Oct 22 - Thu, Nov 5

12:43 pm - 8:00 pmONT Ontario-OPO Porto

23h 17m2 stops Dallas/Fort Worth Madrid Barajas

4:40 pm - 10:40 pmOPO Porto-ONT Ontario

38h 00m2 stops Madrid Barajas Dallas/Fort Worth

$1,104Iberia

Tue, Oct 13 - Mon, Oct 19

Cheap last minute flights

Enter your travel dates to find the best prices.

10:20 am - 5:25 pmLAX Los Angeles-OPO Porto

23h 05m2 stops Casablanca Mohamed V Sevilla

7:05 am - 8:20 amOPO Porto-LAX Los Angeles

33h 15m2 stops Sevilla Casablanca Mohamed V

$799Multiple Airlines

Fri, Sep 4 - Sat, Sep 19

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

28h 40m2 stops Casablanca Mohamed V Madrid Barajas

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

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

$820Multiple Airlines

Fri, Sep 4 - Sat, Sep 19

2:35 pm - 7:00 amLAX Los Angeles-OPO Porto

56h 25m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

11:20 am - 4:30 pmOPO Porto-LAX Los Angeles

37h 10m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,068Air Canada

Sat, Sep 5 - Wed, Sep 16

2:35 pm - 7:00 amLAX Los Angeles-OPO Porto

56h 25m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

12:15 pm - 4:30 pmOPO Porto-LAX Los Angeles

36h 15m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,068Air Canada

Sat, Sep 5 - Tue, Sep 15

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

23h 21m1 stop Montreal Pierre Elliott Trudeau Intl

12:15 pm - 11:17 amOPO Porto-SFO San Francisco

31h 02m1 stop Montreal Pierre Elliott Trudeau Intl

$1,104Lufthansa

Tue, Sep 1 - Tue, Sep 8

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

23h 21m1 stop Montreal Pierre Elliott Trudeau Intl

12:15 pm - 9:28 amOPO Porto-SFO San Francisco

29h 13m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$1,104Lufthansa

Tue, Sep 1 - Tue, Sep 8

8:10 am - 7:00 amSFO San Francisco-OPO Porto

14h 50m1 stop Montreal Pierre Elliott Trudeau Intl

9:00 am - 10:37 pmOPO Porto-SFO San Francisco

21h 37m1 stop Newark

$1,120United Airlines

Wed, Sep 2 - Mon, Sep 14

8:10 am - 7:00 amSFO San Francisco-OPO Porto

14h 50m1 stop Montreal Pierre Elliott Trudeau Intl

9:00 am - 12:59 amOPO Porto-SFO San Francisco

23h 59m2 stops Newark Washington, D.C. Dulles Intl

$1,125United Airlines

Wed, Sep 2 - Mon, Sep 14

4:55 pm - 8:25 pmLAX Los Angeles-OPO Porto

19h 30m1 stop Lisbon Humberto Delgado

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

15h 45m1 stop Lisbon Humberto Delgado

$1,125TAP AIR PORTUGAL

Sat, Sep 5 - Tue, Sep 15

4:35 pm - 12:40 amSFO San Francisco-OPO Porto

24h 05m1 stop Lisbon Humberto Delgado

7:00 am - 2:05 pmOPO Porto-SFO San Francisco

15h 05m1 stop Lisbon Humberto Delgado

$1,367TAP AIR PORTUGAL

Wed, Sep 2 - Mon, Sep 14

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SWISS flights from California to Porto

Our best SWISS deals on California to Porto flight tickets

SWISS

Oct 18

SFO7:35 pmSan Francisco

14h 40m

1 stop

OPO6:15 pmPorto

Nov 4

OPO12:05 pmPorto

36h 25m

1 stop

SFO4:30 pmSan Francisco

$735

SWISS

Oct 22

SFO7:35 pmSan Francisco

31h 50m

1 stop

OPO11:25 amPorto

Nov 5

OPO12:05 pmPorto

36h 25m

1 stop

SFO4:30 pmSan Francisco

$771

SWISS

Nov 16

SAN4:01 pmSan Diego

35h 14m

2 stops

OPO11:15 amPorto

Nov 30

OPO12:05 pmPorto

40h 40m

2 stops

SAN8:45 pmSan Diego

$783

Iberia flights from California to Porto

Our best Iberia deals on California to Porto flight tickets

Iberia

Nov 18

SAN10:12 amSan Diego

17h 33m

2 stops

OPO11:45 amPorto

Nov 25

OPO8:20 amPorto

23h 27m

2 stops

SAN11:47 pmSan Diego

$737

Iberia

Oct 19

SAN7:40 pmSan Diego

28h 00m

2 stops

OPO7:40 amPorto

Nov 2

OPO4:40 pmPorto

34h 35m

2 stops

SAN7:15 pmSan Diego

$769

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

$629

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Wed 10/28

5:45 pm-5:00 pm

1 stop16h 15m

Porto

Fri 11/6

5:45 pm-2:50 pm

1 stop29h 05m

$629

Quickest round-trip

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Wed 10/28

8:25 pm-6:30 pm

1 stop15h 05m

Porto

Fri 11/6

6:15 am-7:35 pm

1 stop21h 20m

$728

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Sat 11/28

4:40 pm-12:50 pm

2 stops36h 10m

Porto

Wed 12/9

6:00 am-4:06 pm

2 stops18h 06m

$730

San DiegoPorto

SAN San Diego - OPO Porto

SANOPO

San Diego

Sun 10/18

7:20 am-10:25 am

1 stop19h 05m

Porto

Mon 11/2

11:15 am-12:10 pm

1 stop32h 55m

$731

San DiegoPorto

SAN San Diego - OPO Porto

SANOPO

San Diego

Sun 10/18

10:00 pm-10:30 am

2 stops28h 30m

Porto

Mon 11/2

11:15 am-12:10 pm

1 stop32h 55m

$731

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Sun 10/18

7:35 pm-6:15 pm

1 stop14h 40m

Porto

Wed 11/4

12:05 pm-4:30 pm

1 stop36h 25m

$735

San DiegoPorto

SAN San Diego - OPO Porto

SANOPO

San Diego

Wed 11/18

10:12 am-11:45 am

2 stops17h 33m

Porto

Wed 11/25

8:20 am-11:47 pm

2 stops23h 27m

$737

San FranciscoPorto

SFO San Francisco - OPO Porto

SFOOPO

San Francisco

Thu 10/22

7:35 pm-11:25 am

1 stop31h 50m

Porto

Thu 11/5

12:05 pm-4:30 pm

1 stop36h 25m

$771

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Tue 10/13

12:43 pm-8:00 pm

2 stops23h 17m

Porto

Mon 10/19

4:40 pm-10:40 pm

2 stops38h 00m

$1,104

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	$304
Fastest flight time	13h 05m
Direct flights	None

The best one-way flight to Porto from California in the past 72 hours is $304. The best round-trip flight deal from California to Porto found on momondo in the last 72 hours is $629.

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 August 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 2,378 reviews	Search TAP AIR PORTUGAL flights
KLM	PriceFrom $476	Free Cancellation	Rating 7.8 1,570 reviews	Search KLM flights
Scandinavian Airlines	PriceFrom $480	Free Cancellation	Rating 7.4 1,970 reviews	Search Scandinavian Airlines flights
Delta	PriceFrom $533	Free Cancellation	Rating 7.8 8,535 reviews	Search Delta flights
Lufthansa	PriceFrom $544	Free Cancellation	Rating 6.8 8,228 reviews	Search Lufthansa flights
Iberia	PriceFrom $545	Free Cancellation	Rating 7.0 3,245 reviews	Search Iberia flights
United Airlines	PriceFrom $562	Free Cancellation	Rating 7.4 10,151 reviews	Search United Airlines flights
SWISS	PriceFrom $623	Free Cancellation	Rating 7.5 2,059 reviews	Search SWISS flights
Turkish Airlines	PriceFrom $654	Free Cancellation	Rating 7.4 4,478 reviews	Search Turkish Airlines flights
Air Canada	PriceFrom $830	Free Cancellation	Rating 7.1 11,564 reviews	Search Air Canada flights

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Coimbra

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 $304

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 10/1. 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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SWISS flights from California to Porto

Our best SWISS deals on California to Porto flight tickets

Iberia flights from California to Porto

Our best Iberia 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 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

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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.

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Popular flights according to clicks in the last 7 days on momondo

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