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$321+ Cheap flights from Porto (OPO) to California

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAX
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap flight deals from Porto to California

Cheapest flights from Porto to California
Explore the most affordable flight options available from Porto to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.

This Mytrip deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:50 am
OPO
-
LAS
1 stop20h 52m
Air Transat
Thu 4/911:45 pm
LAS
-
OPO
1 stop24h 20m
Air Transat
Deal found 2/10$581
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:35 pm
OPO
-
SFO
1 stop29h 00m
Scandinavian Airlines
Mon 3/235:40 pm
SFO
-
OPO
1 stop32h 55m
Scandinavian Airlines
Deal found 2/9$645
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:55 pm
OPO
-
SFO
2 stops50h 50m
Multiple Airlines
Sun 4/267:40 pm
SFO
-
OPO
1 stop27h 30m
Multiple Airlines
Deal found 2/8$648
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:00 pm
OPO
-
SFO
2 stops24h 35m
Multiple Airlines
Sun 4/267:40 pm
SFO
-
OPO
1 stop28h 20m
Multiple Airlines
Deal found 2/8$667
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:20 pm
OPO
-
LAX
1 stop30h 30m
Scandinavian Airlines
Mon 4/207:10 pm
LAX
-
OPO
1 stop31h 50m
Scandinavian Airlines
Deal found 2/8$671
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:00 pm
OPO
-
LAX
1 stop28h 10m
Multiple Airlines
Sat 4/188:55 pm
LAX
-
OPO
1 stop36h 50m
Multiple Airlines
Deal found 2/10$673
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:00 pm
OPO
-
SFO
2 stops26h 50m
Multiple Airlines
Sun 4/267:40 pm
SFO
-
OPO
1 stop28h 20m
Multiple Airlines
Deal found 2/8$687
This LEVEL deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/29:55 pm
OPO
-
LAX
1 stop28h 10m
LEVEL
Tue 3/178:50 pm
LAX
-
OPO
1 stop28h 20m
LEVEL
Deal found 2/10$691
This ResecentrumGruppen deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:35 pm
OPO
-
LAX
1 stop31h 25m
Scandinavian Airlines
Tue 3/317:10 pm
LAX
-
OPO
1 stop30h 35m
Scandinavian Airlines
Deal found 2/9$710
This Vueling Global deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/29:55 pm
OPO
-
LAX
1 stop28h 10m
Multiple Airlines
Tue 3/178:50 pm
LAX
-
OPO
1 stop28h 20m
Multiple Airlines
Deal found 2/10$711
This LEVEL deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:50 pm
OPO
-
SFO
1 stop33h 05m
LEVEL
Sun 4/267:40 pm
SFO
-
OPO
1 stop28h 20m
LEVEL
Deal found 2/8$713
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:45 pm
OPO
-
SFO
2 stops28h 50m
Multiple Airlines
Sun 4/267:40 pm
SFO
-
OPO
1 stop27h 30m
Multiple Airlines
Deal found 2/8$716

Find flight deals from Porto to California

Keep the following information in mind while searching for Porto to California flight deals. Data was last updated February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$581
(Mytrip)

One-way from

$321
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$813
Provider with most accurate pricing for Porto-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto-Los Angeles flights.
Search Deals
From Porto to California
Search Deals
One-way flight from Porto to California
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated February 11, 2026.
Use the filters below to find and compare flights from Porto to California that are best for you.

Fly from

Porto

Fly to

California

Route

Depart

Return

Price

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 3/26

8:50 am-10:42 pm

1 stop20h 52m

Las Vegas Harry Reid Intl

Thu 4/9

11:45 pm-8:05 am

1 stop24h 20m

$581

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Wed 4/15

5:55 pm-12:45 pm

2 stops50h 50m

San Francisco

Sun 4/26

7:40 pm-7:10 am

1 stop27h 30m

$648

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Thu 4/2

10:00 pm-6:10 pm

1 stop28h 10m

Los Angeles

Sat 4/18

8:55 pm-5:45 pm

1 stop36h 50m

$673

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Mon 3/2

9:55 pm-6:05 pm

1 stop28h 10m

Los Angeles

Tue 3/17

8:50 pm-8:10 am

1 stop28h 20m

$691

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Mon 3/16

5:35 pm-6:00 pm

1 stop31h 25m

Los Angeles

Tue 3/31

7:10 pm-9:45 am

1 stop30h 35m

$710

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Wed 4/15

4:50 pm-5:55 pm

1 stop33h 05m

San Francisco

Sun 4/26

7:40 pm-8:00 am

1 stop28h 20m

$713

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Fri 5/15

8:15 pm-11:45 am

1 stop23h 30m

San Francisco

Mon 5/18

8:10 pm-10:00 pm

1 stop17h 50m

$720

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Fri 5/15

5:00 am-11:45 am

1 stop14h 45m

San Francisco

Mon 5/18

9:30 am-3:25 pm

2 stops21h 55m

$721

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 3/9

5:00 am-12:50 pm

1 stop14h 50m

San Francisco

Mon 3/23

7:25 am-10:30 am

2 stops20h 05m

$722

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Sun 4/5

7:00 pm-11:45 am

1 stop24h 45m

San Francisco

Mon 4/20

8:10 pm-3:25 pm

1 stop35h 15m

$726

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 41 results
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Best time to book a flight from Porto to California

Have a flexible travel schedule? Discover the best time to fly to California from Porto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Porto to California

What is the cheapest month to book a flight from Porto to California?

Currently, February is the cheapest month in which you can book a flight from Porto to California (average of $510). Flying from Porto to California in July is currently the most expensive (average of $807). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated February 11, 2026.
Read reviews from past customers who have flown TAP AIR PORTUGAL and Lufthansa from Porto to California. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
TAP AIR PORTUGAL
7.1
Good
2,139 reviews

Crew

7.8

Food

6.2

Entertainment

6.3

Boarding

7.0

Comfort

7.1

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification
TAP AIR PORTUGAL
7.1
Good
2,139 reviews
TAP AIR PORTUGAL
7.1
Good
2,139 reviews

Crew

7.8

Food

6.2

Entertainment

6.3

Boarding

7.0

Comfort

7.1

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification
Lufthansa
6.8
Okay
7,777 reviews
TAP AIR PORTUGAL
7.1
Good
2,139 reviews

Crew

7.8

Food

6.2

Entertainment

6.3

Boarding

7.0

Comfort

7.1

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification

Related info for your journey

Find useful and relevant information for your journey from Porto to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Porto to California?

    Porto (OPO), located 6.8 mi from the city center, is the airport you fly out of when you book flights from Porto to California.

  • How long is the flight from Porto to California?

    For as low as $581, Air Transat can have you in California from Porto in 20h 52m. The distance between Porto and California is about 5352 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Porto to California one-way?

    $353 is the cheapest one-way deal found within the past few days, from LEVEL. You may also be able to find cheap deals on TAP AIR PORTUGAL and British Airways, with prices starting from $366 and $407, respectively.

  • What are the most popular routes from Porto to California?

    The most popular route from Porto to California is Porto - Los Angeles. You may also consider Porto - San Francisco or Porto - Las Vegas Harry Reid Intl.

  • Can I find deals for flights from Porto to California that include hotel bookings?

    Yes. In addition to deals on Porto to California flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to California?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to California.

  • Can I find deals for business class flights from Porto to California?

    Yes. Cheapflights offers flight deals from Porto to California by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto to California?

    Currently, February is the cheapest month in which you can book a flight from Porto to California (average of $510). Flying from Porto to California in July is currently the most expensive (average of $807). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Porto to California

Discover the top 2 airlines that operate flights from Porto to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$634Average$702FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$688Average$844FlexibilityNo cancel feeOn-time76%

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