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$387+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAX
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find 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 November 3, 2025.

This Booking.com deal was found by Cheapflights users on 11/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:35 pmOPO - SFO
1 stop29h 00mScandinavian Airlines
Sun 12/284:40 pmSFO - OPO
1 stop16h 05mScandinavian Airlines
Deal found 11/2$602
This lastminute.com deal was found by Cheapflights users on 10/31. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:00 pmOPO - LAX
1 stop27h 00mTAP AIR PORTUGAL
Tue 12/24:45 pmLAX - OPO
1 stop14h 15mTAP AIR PORTUGAL
Deal found 10/31$611
This AirNGo deal was found by Cheapflights users on 11/1. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:55 amOPO - SFO
1 stop17h 10mTAP AIR PORTUGAL
Fri 11/287:10 pmSFO - OPO
1 stop35h 50mTAP AIR PORTUGAL
Deal found 11/1$632
This Mytrip deal was found by Cheapflights users on 10/31. 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.
Mon 11/171:15 pmOPO - LAX
2 stops34h 50mMultiple Airlines
Tue 12/26:20 pmLAX - OPO
3 stops32h 45mMultiple Airlines
Deal found 10/31$668
This SWISS deal was found by Cheapflights users on 11/2. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:05 pmOPO - SFO
1 stop36h 25mSWISS
Mon 11/247:25 pmSFO - OPO
1 stop31h 50mSWISS
Deal found 11/2$694
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Mon 11/176:30 amOPO - SFO
1 stop17h 05mMultiple Airlines
Mon 12/15:20 pmSFO - OPO
1 stop19h 10mMultiple Airlines
Deal found 11/1$703
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:00 amOPO - SFO
1 stop14h 50mDelta
Tue 11/256:00 amSFO - OPO
2 stops20h 30mDelta
Deal found 11/1$717
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:05 amOPO - SFO
2 stops22h 33mDelta
Mon 11/245:45 amSFO - OPO
2 stops20h 45mDelta
Deal found 11/2$721
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:30 amOPO - SFO
2 stops26h 42mDelta
Fri 11/285:45 amSFO - OPO
2 stops20h 45mDelta
Deal found 11/1$722
This Air France deal was found by Cheapflights users on 11/1. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:30 amOPO - SFO
2 stops19h 39mMultiple Airlines
Fri 11/283:40 pmSFO - OPO
1 stop34h 50mMultiple Airlines
Deal found 11/1$724
This Air France deal was found by Cheapflights users on 11/1. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/94:10 pmOPO - SFO
1 stop27h 40mKLM
Tue 11/251:55 pmSFO - OPO
1 stop36h 35mKLM
Deal found 11/1$725
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1711:25 amOPO - SFO
2 stops19h 46mDelta
Mon 12/16:00 amSFO - OPO
2 stops20h 30mDelta
Deal found 11/1$728

Cheap flight deals from Porto to California

Keep the following information in mind while searching for Porto to California flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$602
(Booking.com)

One-way from

$387
(Kiwi.com)

Popular in

October

Cheapest in

February

Average price

$871
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. 12% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 3, 2025.
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

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Fri 11/14

6:55 am-4:05 pm

1 stop17h 10m

San Francisco

Fri 11/28

7:10 pm-3:00 pm

1 stop35h 50m

$632

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 12/22

4:15 pm-12:40 pm

1 stop28h 25m

San Francisco

Fri 2/20

9:25 pm-11:40 pm

1 stop18h 15m

$694

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Sun 11/9

5:00 am-11:50 am

1 stop14h 50m

San Francisco

Tue 11/25

6:00 am-10:30 am

2 stops20h 30m

$717

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Tue 11/18

6:05 am-8:38 pm

2 stops22h 33m

San Francisco

Mon 11/24

5:45 am-10:30 am

2 stops20h 45m

$721

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Fri 11/14

6:30 am-1:12 am

2 stops26h 42m

San Francisco

Fri 11/28

5:45 am-10:30 am

2 stops20h 45m

$722

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Fri 11/14

6:30 am-6:09 pm

2 stops19h 39m

San Francisco

Fri 11/28

3:40 pm-10:30 am

1 stop34h 50m

$724

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 11/17

11:25 am-11:11 pm

2 stops19h 46m

San Francisco

Mon 12/1

6:00 am-10:30 am

2 stops20h 30m

$728

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Sun 12/21

7:25 pm-4:30 pm

1 stop29h 05m

San Francisco

Tue 1/6

7:25 pm-11:15 am

1 stop31h 50m

$734

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Fri 1/23

12:30 pm-3:35 pm

2 stops35h 05m

San Francisco

Sat 1/31

5:00 am-11:40 am

3 stops22h 40m

$739

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 12/22

12:30 pm-8:48 am

2 stops52h 18m

San Francisco

Tue 1/6

1:35 pm-11:40 am

2 stops38h 05m

$739

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 50 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 $319). Flying from Porto to California in July is currently the most expensive (average of $756). 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.

How much does it cost to fly round-trip from Porto to California?

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 November 3, 2025.
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
2,041 reviews

Boarding

7.0

Crew

7.8

Comfort

7.1

Food

6.2

Overall

7.1

Entertainment

6.3

Reviews

1 / 20
6.0
Good

Delsy,Aug 2025

LIS - MIA

Boarding was a hassle. When I asked if my flight class had been assigned, the staff treated me poorly. The seats were small and very hard, and the temperature was extremely hot for about half of the flight. The food was good, but there wasn't enough chicken for the entire plane, so I only received pasta with no other options. The flight attendants were not friendly at all. Overall, for a group of 24 people, it was a very unpleasant experience.
TAP AIR PORTUGAL
7.1
Good
2,041 reviews
TAP AIR PORTUGAL
7.1
Good
2,041 reviews

Boarding

7.0

Crew

7.8

Comfort

7.1

Food

6.2

Overall

7.1

Entertainment

6.3

Reviews

1 / 20
6.0
Good

Delsy,Aug 2025

LIS - MIA

Boarding was a hassle. When I asked if my flight class had been assigned, the staff treated me poorly. The seats were small and very hard, and the temperature was extremely hot for about half of the flight. The food was good, but there wasn't enough chicken for the entire plane, so I only received pasta with no other options. The flight attendants were not friendly at all. Overall, for a group of 24 people, it was a very unpleasant experience.
Lufthansa
6.8
Okay
7,542 reviews
TAP AIR PORTUGAL
7.1
Good
2,041 reviews

Boarding

7.0

Crew

7.8

Comfort

7.1

Food

6.2

Overall

7.1

Entertainment

6.3

Reviews

1 / 20
6.0
Good

Delsy,Aug 2025

LIS - MIA

Boarding was a hassle. When I asked if my flight class had been assigned, the staff treated me poorly. The seats were small and very hard, and the temperature was extremely hot for about half of the flight. The food was good, but there wasn't enough chicken for the entire plane, so I only received pasta with no other options. The flight attendants were not friendly at all. Overall, for a group of 24 people, it was a very unpleasant experience.

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 $717, TAP AIR PORTUGAL can have you in California from Porto in 14h 50m. The distance between Porto and California is about 5566 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $319). Flying from Porto to California in July is currently the most expensive (average of $756). 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

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Alternative routes for Porto to California

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$670Average$847FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$675Average$702FlexibilityNo cancel feeOn-timeN/A

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