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Cheap flights from Porto to California from $367

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to California departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Porto to California

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 pm - 6:05 pm
OPO
-
LAX
32h 05m1 stop
Multiple Airlines Logo
7:50 pm - 8:10 am
LAX
-
OPO
28h 20m1 stop
$619Multiple Airlines
lun., févr. 2 - mar., févr. 17
TAP AIR PORTUGAL Logo
6:00 pm - 4:05 pm
OPO
-
SFO
30h 05m1 stop
TAP AIR PORTUGAL Logo
4:35 pm - 3:05 pm
SFO
-
OPO
14h 30m1 stop
$623TAP AIR PORTUGAL
jeu., janv. 15 - mer., janv. 28
TAP AIR PORTUGAL Logo
6:00 pm - 4:05 pm
OPO
-
SFO
30h 05m1 stop
TAP AIR PORTUGAL Logo
4:35 pm - 5:00 pm
SFO
-
OPO
16h 25m1 stop
$625TAP AIR PORTUGAL
jeu., janv. 15 - mer., janv. 28
TAP AIR PORTUGAL Logo
6:55 am - 3:35 pm
OPO
-
SFO
15h 40m1 stop
TAP AIR PORTUGAL Logo
8:10 pm - 6:30 am
SFO
-
OPO
27h 20m1 stop
$628TAP AIR PORTUGAL
lun., mars 9 - ven., mars 27
TAP AIR PORTUGAL Logo
7:00 am - 2:40 pm
OPO
-
LAX
15h 40m1 stop
TAP AIR PORTUGAL Logo
4:45 pm - 3:00 pm
LAX
-
OPO
14h 15m1 stop
$629TAP AIR PORTUGAL
jeu., janv. 15 - jeu., janv. 29
Multiple Airlines Logo
6:20 pm - 6:05 pm
OPO
-
LAX
31h 45m2 stops
Multiple Airlines Logo
7:50 pm - 8:10 am
LAX
-
OPO
28h 20m1 stop
$644Multiple Airlines
lun., févr. 2 - mar., févr. 17
Multiple Airlines Logo
9:55 pm - 6:05 pm
OPO
-
LAX
28h 10m1 stop
Multiple Airlines Logo
7:55 pm - 8:10 am
LAX
-
OPO
28h 15m1 stop
$651Multiple Airlines
lun., févr. 9 - dim., févr. 22
Delta Logo
11:15 am - 11:53 pm
OPO
-
OAK
44h 38m2 stops
Delta Logo
5:55 am - 10:30 am
OAK
-
OPO
20h 35m2 stops
$775Delta
dim., févr. 1 - dim., févr. 8
KLM Logo
4:20 pm - 6:35 pm
OPO
-
LAS
34h 15m1 stop
KLM Logo
5:50 pm - 3:30 pm
LAS
-
OPO
13h 40m1 stop
$889KLM
lun., mai 4 - mer., mai 13
Lufthansa Logo
12:30 pm - 12:57 am
OPO
-
LAS
20h 27m2 stops
Lufthansa Logo
9:19 am - 12:50 pm
LAS
-
OPO
19h 31m2 stops
$894Lufthansa
sam., févr. 7 - lun., févr. 23

TAP AIR PORTUGAL flights from Porto to California

Our best TAP AIR PORTUGAL deals on Porto to California flight tickets
TAP AIR PORTUGAL
Jan 15
OPO6:00 pmPorto
30h 05m
1 stop
SFO4:05 pmSan Francisco
Jan 28
SFO4:35 pmSan Francisco
14h 30m
1 stop
OPO3:05 pmPorto
$623
Find similar
TAP AIR PORTUGAL
Jan 15
OPO6:00 pmPorto
30h 05m
1 stop
SFO4:05 pmSan Francisco
Jan 28
SFO4:35 pmSan Francisco
16h 25m
1 stop
OPO5:00 pmPorto
$625
Find similar
TAP AIR PORTUGAL
Mar 9
OPO6:55 amPorto
15h 40m
1 stop
SFO3:35 pmSan Francisco
Mar 27
SFO8:10 pmSan Francisco
27h 20m
1 stop
OPO6:30 amPorto
$628
Find similar

SWISS flights from Porto to California

Our best SWISS deals on Porto to California flight tickets
SWISS
Jan 31
OPO11:55 amPorto
36h 35m
1 stop
SFO4:30 pmSan Francisco
Feb 7
SFO11:45 amSan Francisco
22h 50m
2 stops
OPO6:35 pmPorto
$724
Find similar
SWISS
Jan 15
OPO12:05 pmPorto
36h 30m
1 stop
LAX4:35 pmLos Angeles
Jan 29
LAX7:10 pmLos Angeles
32h 00m
1 stop
OPO11:10 amPorto
$892
Find similar
SWISS
Dec 20
OPO8:40 amPorto
20h 02m
2 stops
LAS8:42 pmLas Vegas Harry Reid Intl
Jan 9
LAS9:26 amLas Vegas Harry Reid Intl
17h 44m
2 stops
OPO11:10 amPorto
$1,387
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Porto to California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated décembre 18, 2025.
Use the filters below to find and compare flights from Porto to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

lun. 2/2

6:00 pm-6:05 pm

1 stop32h 05m

Los Angeles

mar. 2/17

7:50 pm-8:10 am

1 stop28h 20m

$619

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

jeu. 1/15

6:00 pm-4:05 pm

1 stop30h 05m

San Francisco

mer. 1/28

4:35 pm-3:05 pm

1 stop14h 30m

$623

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

jeu. 1/15

6:00 pm-4:05 pm

1 stop30h 05m

San Francisco

mer. 1/28

4:35 pm-5:00 pm

1 stop16h 25m

$625

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

lun. 3/9

6:55 am-3:35 pm

1 stop15h 40m

San Francisco

ven. 3/27

8:10 pm-6:30 am

1 stop27h 20m

$628

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

jeu. 1/15

7:00 am-2:40 pm

1 stop15h 40m

Los Angeles

jeu. 1/29

4:45 pm-3:00 pm

1 stop14h 15m

$629

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

lun. 2/2

6:20 pm-6:05 pm

2 stops31h 45m

Los Angeles

mar. 2/17

7:50 pm-8:10 am

1 stop28h 20m

$644

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

lun. 2/9

9:55 pm-6:05 pm

1 stop28h 10m

Los Angeles

dim. 2/22

7:55 pm-8:10 am

1 stop28h 15m

$651

PortoOakland

OPO - OAK

OPOOAK

Porto

dim. 2/1

11:15 am-11:53 pm

2 stops44h 38m

Oakland

dim. 2/8

5:55 am-10:30 am

2 stops20h 35m

$775

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

lun. 5/4

4:20 pm-6:35 pm

1 stop34h 15m

Las Vegas Harry Reid Intl

mer. 5/13

5:50 pm-3:30 pm

1 stop13h 40m

$889

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

sam. 2/7

12:30 pm-12:57 am

2 stops20h 27m

Las Vegas Harry Reid Intl

lun. 2/23

9:19 am-12:50 pm

2 stops19h 31m

$894

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to California from

How to get the cheapest flight ticket from Porto to California

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

What is the cheapest month to fly to California?

The month of February is another great option to travel to California, with average flight prices from Porto averaging around $760.

What is the cheapest day to depart on your flight to California?

The cheapest day to depart from Porto to California is on a Tuesday. Travelers who choose to depart for California on a Tuesday will often find tickets for as low as $712. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to California on Friday is $1,031.

What is the cheapest time of day to depart on your flight to California?

The cheapest time of day to fly to California is in the afternoon when flights can be purchased for as low as $802. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $857 on average. Flights to California from Porto in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Porto to California flights?

You could potentially save up to 30% on your flight if you consider stops on a Porto to California flight.

Cheap Porto to California flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to California

Fastest flight time

15h 40m

Direct flights

None
The fastest flight from Porto to California takes 15h 40m
There are no direct flights from Porto to California. There are no popular flight routes from Porto to California.
Search flight deals

  • When did momondo last update prices for flights from Porto Airport to California?

    Prices for flights from Porto Airport to California are refreshed on a daily basis.

  • How many operators does momondo search for flights from Porto Airport to California?

  • How old do you have to be to fly from Porto Airport to California?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Porto Airport to California.

  • What documentation or ID do you need to fly to California?

    The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Porto to California

Compare and see reviews for airlines that fly from Porto to California with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $665Free CancellationRating
6.8
7,635 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $675Free CancellationRating
7.2
2,091 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Porto to California for you.

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

Flights from Porto to California with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to California from Porto.

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

If you are not ready to book a flight from Porto to California now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to California and let you know when they change.

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