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Cheap flights from Porto to California from $263

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 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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Find the cheapest flights from Porto to California

Cheap round-trip flights

Scandinavian Airlines Logo
5:35 pm - 5:00 pmOPO-LAX
31h 25m1 stop
Scandinavian Airlines Logo
7:30 pm - 4:55 pmLAX-OPO
37h 25m1 stop
$481Scandinavian Airlines
Find Deal
lun., nov. 10 - mié., nov. 19
Logo
7:45 pm - 1:05 pmOPO-LAX
25h 20m1 stop
Logo
4:30 pm - 11:40 amLAX-OPO
35h 10m1 stop
$521
Find Deal
vie., sep. 19 - dom., oct. 5
Logo
3:00 pm - 1:05 pmOPO-LAX
30h 05m2 stops
Logo
4:30 pm - 9:15 amLAX-OPO
32h 45m1 stop
$553
Find Deal
vie., sep. 19 - dom., oct. 5
TAP AIR PORTUGAL Logo
10:35 pm - 4:45 pmOPO-SFO
26h 10m2 stops
TAP AIR PORTUGAL Logo
4:20 pm - 7:00 pmSFO-OPO
18h 40m1 stop
$595TAP AIR PORTUGAL
Find Deal
lun., sep. 8 - lun., sep. 22
TAP AIR PORTUGAL Logo
9:15 pm - 1:35 pmOPO-SFO
24h 20m1 stop
TAP AIR PORTUGAL Logo
4:20 pm - 7:00 pmSFO-OPO
18h 40m1 stop
$610TAP AIR PORTUGAL
Find Deal
lun., sep. 22 - lun., sep. 29
Air Transat Logo
1:30 pm - 11:15 amOPO-LAS
29h 45m1 stop
Air Transat Logo
12:20 pm - 11:55 amLAS-OPO
15h 35m1 stop
$622Air Transat
Find Deal
lun., sep. 22 - mié., oct. 8
Air Transat Logo
1:30 pm - 11:15 amOPO-LAS
29h 45m1 stop
Air Transat Logo
12:20 pm - 11:55 amLAS-OPO
15h 35m1 stop
$647Air Transat
Find Deal
lun., sep. 22 - mié., oct. 8
Lufthansa Logo
6:15 am - 7:35 pmOPO-SFO
21h 20m1 stop
Lufthansa Logo
7:00 am - 9:30 amSFO-OPO
18h 30m1 stop
$730Lufthansa
Find Deal
sáb., nov. 22 - vie., nov. 28
United Airlines Logo
12:35 pm - 12:59 amOPO-SFO
20h 24m2 stops
United Airlines Logo
7:00 am - 6:55 amSFO-OPO
15h 55m1 stop
$736United Airlines
Find Deal
lun., sep. 8 - lun., sep. 22
United Airlines Logo
9:35 am - 6:59 pmOPO-SFO
17h 24m1 stop
United Airlines Logo
12:43 am - 6:55 amSFO-OPO
22h 12m2 stops
$739United Airlines
Find Deal
mié., sep. 10 - sáb., sep. 20

Iberia flights from Porto to California

Our best Iberia deals on Porto to California flight tickets
Iberia
Oct 17
OPO10:00 pmPorto
28h 10m
1 stop
SFO6:10 pmSan Francisco
Oct 23
SFO8:10 pmSan Francisco
36h 05m
1 stop
OPO4:15 pmPorto
$693
Find similar
Iberia
Oct 26
OPO8:45 amPorto
17h 20m
1 stop
LAX7:05 pmLos Angeles
Nov 4
LAX7:50 pmLos Angeles
17h 25m
1 stop
OPO9:15 pmPorto
$757
Find similar
Iberia
Aug 13
OPO8:15 amPorto
15h 50m
1 stop
LAX4:05 pmLos Angeles
Aug 25
LAX5:50 pmLos Angeles
14h 05m
1 stop
OPO3:55 pmPorto
$908
Find similar

Scandinavian Airlines flights from Porto to California

Our best Scandinavian Airlines deals on Porto to California flight tickets
Scandinavian Airlines
Nov 10
OPO5:35 pmPorto
31h 25m
1 stop
LAX5:00 pmLos Angeles
Nov 19
LAX7:30 pmLos Angeles
37h 25m
1 stop
OPO4:55 pmPorto
$481
Find similar
Scandinavian Airlines
Sep 5
OPO5:55 pmPorto
30h 25m
1 stop
LAX4:20 pmLos Angeles
Sep 20
LAX7:30 pmLos Angeles
31h 40m
1 stop
OPO11:10 amPorto
$557
Find similar
Scandinavian Airlines
Sep 5
OPO5:55 pmPorto
30h 25m
1 stop
LAX4:20 pmLos Angeles
Sep 20
LAX7:30 pmLos Angeles
31h 40m
1 stop
OPO11:10 amPorto
$558
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 julio 31, 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. 11/10

5:35 pm-5:00 pm

1 stop31h 25m

Los Angeles

mié. 11/19

7:30 pm-4:55 pm

1 stop37h 25m

$481

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

vie. 9/19

7:45 pm-1:05 pm

1 stop25h 20m

Los Angeles

dom. 10/5

4:30 pm-11:40 am

1 stop35h 10m

$521

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

vie. 9/19

3:00 pm-1:05 pm

2 stops30h 05m

Los Angeles

dom. 10/5

4:30 pm-9:15 am

1 stop32h 45m

$553

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

lun. 9/8

10:35 pm-4:45 pm

2 stops26h 10m

San Francisco

lun. 9/22

4:20 pm-7:00 pm

1 stop18h 40m

$595

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

lun. 9/22

9:15 pm-1:35 pm

1 stop24h 20m

San Francisco

lun. 9/29

4:20 pm-7:00 pm

1 stop18h 40m

$610

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

lun. 9/22

1:30 pm-11:15 am

1 stop29h 45m

Las Vegas Harry Reid Intl

mié. 10/8

12:20 pm-11:55 am

1 stop15h 35m

$622

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

lun. 9/22

1:30 pm-11:15 am

1 stop29h 45m

Las Vegas Harry Reid Intl

mié. 10/8

12:20 pm-11:55 am

1 stop15h 35m

$647

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

sáb. 11/22

6:15 am-7:35 pm

1 stop21h 20m

San Francisco

vie. 11/28

7:00 am-9:30 am

1 stop18h 30m

$730

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

lun. 9/8

12:35 pm-12:59 am

2 stops20h 24m

San Francisco

lun. 9/22

7:00 am-6:55 am

1 stop15h 55m

$736

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

mié. 9/10

9:35 am-6:59 pm

1 stop17h 24m

San Francisco

sáb. 9/20

12:43 am-6:55 am

2 stops22h 12m

$739

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 January is another great option to travel to California, with average flight prices from Porto averaging around $762.

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.

How far in advance should I book a flight to California?

You are more likely to see cheaper flights to California from Porto when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around $845 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Porto for as low as $603 on momondo.

Can stopping save me money on Porto to California flights?

You could potentially save up to 12% 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

Best Price Found

$263

Fastest flight time

15h 05m

Direct flights

None

Airports in California

5 airports
The best one-way flight to California from Porto in the past 72 hours is $263. The best round-trip flight deal from Porto to California found on momondo in the last 72 hours is $481.
The fastest flight from Porto to California takes 15h 05m
There are no direct flights from Porto to California. Popular non-direct routes for this connection are Porto Airport - Las Vegas Harry Reid Intl Airport, Porto Airport - San Francisco Airport and Porto Airport - Los Angeles Airport.
There are 5 airports near California: Los Angeles (LAX), Long Beach Municipal (LGB), Oakland (OAK), San Francisco (SFO), Las Vegas Harry Reid Intl (LAS)
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  • 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
United AirlinesPriceFrom $657Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
LufthansaPriceFrom $665Free CancellationRating
6.8
7,275 reviews
Search Lufthansa 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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