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$302+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAX
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Porto to California

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to California (USCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

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 20, 2024.

This Gotogate deal was found by Cheapflights users on 11/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/61:45 pmOPO - SFO
1 stop37h 00mLufthansa
Tue 12/108:35 pmSFO - OPO
2 stops17h 50mLufthansa
Deal found 11/20$638
This Expedia deal was found by Cheapflights users on 11/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1512:30 pmOPO - SFO
1 stop15h 35mMultiple Airlines
Mon 12/307:25 pmSFO - OPO
1 stop15h 05mMultiple Airlines
Deal found 11/19$644
This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/156:00 amOPO - SFO
1 stop22h 05mUnited Airlines
Tue 12/3111:35 pmSFO - OPO
2 stops28h 05mUnited Airlines
Deal found 11/19$649
This Kiwi.com deal was found by Cheapflights users on 11/20. 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 11/257:20 pmOPO - LAS
2 stops27h 20mMultiple Airlines
Sun 12/84:45 pmLAS - OPO
1 stop32h 50mMultiple Airlines
Deal found 11/20$658
This SWISS deal was found by Cheapflights users on 11/20. 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.
Fri 12/67:00 pmOPO - SFO
1 stop29h 25mSWISS
Tue 12/107:25 pmSFO - OPO
1 stop31h 50mSWISS
Deal found 11/20$658
This Mytrip deal was found by Cheapflights users on 11/19. 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.
Sun 12/298:50 amOPO - LAS
1 stop20h 38mAir Transat
Tue 1/1410:35 pmLAS - OPO
1 stop24h 30mAir Transat
Deal found 11/19$667
This American Airlines deal was found by Cheapflights users on 11/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/158:20 amOPO - SFO
2 stops38h 58mAmerican Airlines
Mon 12/3011:27 pmSFO - OPO
2 stops28h 18mAmerican Airlines
Deal found 11/20$682
This Delta deal was found by Cheapflights users on 11/19. 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.
Sat 12/1411:15 amOPO - SFO
1 stop32h 35mDelta
Mon 12/303:25 pmSFO - OPO
1 stop35h 25mDelta
Deal found 11/19$683
This KLM deal was found by Cheapflights users on 11/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1511:45 amOPO - SFO
2 stops19h 15mKLM
Mon 12/301:50 pmSFO - OPO
1 stop36h 40mKLM
Deal found 11/20$732
This British Airways deal was found by Cheapflights users on 11/19. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/148:20 amOPO - SFO
2 stops35h 08mBritish Airways
Mon 12/308:40 pmSFO - OPO
1 stop37h 00mBritish Airways
Deal found 11/19$754
This Gotogate deal was found by Cheapflights users on 11/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:30 pmOPO - LAX
1 stop29h 00mSWISS
Mon 12/97:10 pmLAX - OPO
1 stop32h 05mSWISS
Deal found 11/19$764
This KLM deal was found by Cheapflights users on 11/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/511:45 amOPO - LAX
2 stops32h 00mMultiple Airlines
Mon 12/99:00 amLAX - OPO
2 stops17h 50mMultiple Airlines
Deal found 11/19$766

Find flights from Porto to California within your budget

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Wed 1/22

6:50 am-2:40 pm

1 stop15h 50m

San Francisco

Wed 1/29

4:35 pm-10:00 pm

1 stop21h 25m

$556

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Wed 1/22

2:35 pm-5:45 pm

1 stop35h 10m

Los Angeles

Sun 1/26

7:30 pm-10:55 pm

1 stop19h 25m

$581

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 1/15

7:35 pm-8:51 pm

2 stops33h 16m

Las Vegas Harry Reid Intl

Sun 1/19

4:45 pm-9:35 am

1 stop32h 50m

$622

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Fri 12/6

1:45 pm-6:45 pm

1 stop37h 00m

San Francisco

Tue 12/10

8:35 pm-10:25 pm

2 stops17h 50m

$638

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/16

8:50 am-1:28 pm

1 stop36h 38m

Las Vegas Harry Reid Intl

Fri 1/31

10:35 pm-7:05 am

1 stop24h 30m

$643

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Sun 12/15

12:30 pm-8:05 pm

1 stop15h 35m

San Francisco

Mon 12/30

7:25 pm-6:30 pm

1 stop15h 05m

$644

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Sun 12/15

6:00 am-8:05 pm

1 stop22h 05m

San Francisco

Tue 12/31

11:35 pm-11:40 am

2 stops28h 05m

$649

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Fri 1/10

6:00 am-9:32 am

2 stops35h 32m

San Francisco

Sat 1/18

8:30 am-12:05 pm

2 stops19h 35m

$655

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Wed 1/22

12:35 pm-11:50 am

1 stop31h 15m

San Francisco

Wed 1/29

9:21 am-10:50 am

2 stops17h 29m

$656

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Fri 12/6

7:00 pm-4:25 pm

1 stop29h 25m

San Francisco

Tue 12/10

7:25 pm-11:15 am

1 stop31h 50m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 54 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.

Travel insights for flights from Porto to California

Get recent, data-driven insights about flights from Porto to California including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Porto to California (average of $240). Flying from Porto to California in July is currently the most expensive (average of $321). 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.

What is the cheapest time of day to fly from OPO to CA?

Find hourly flight availability from Porto to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

When flying from Porto to California, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in California by month

Plan your trip to California by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in California ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit California when rainfall is around 0.0 in.

Temperature in California by month

Plan your trip to California by taking into account the average temperature totals by month.

If weather is an important factor for your trip to California, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 20, 2024.
Read reviews from past customers who have flown American Airlines, KLM and Lufthansa from Porto to California. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Transat
7.8
Good
389 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.6
Good
1,637 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,523 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    $409 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on British Airways and KLM, with prices starting from $563 and $610, respectively.

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

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

  • 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, September is the cheapest month in which you can book a flight from Porto to California (average of $240). Flying from Porto to California in July is currently the most expensive (average of $321). 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 3 airlines flying from Porto to California

Discover the top 3 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$634Average$788FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$668Average$814FlexibilityNo cancel feeOn-time76%
KLMCheapest$776Average$1,031FlexibilityNo cancel feeOn-time75%
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