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$330+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAX
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
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 January 21, 2025.

Round-trip from

$498
(Kiwi.com)

One-way from

$330
(OneTravel)
From Porto to California
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One-way flight from Porto to California
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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 January 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 1/20. 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 3/109:55 pmOPO - LAX
1 stop29h 10mVueling
Sun 3/238:30 pmLAX - OPO
1 stop28h 30mVueling
Deal found 1/20$498
This Mytrip deal was found by Cheapflights users on 1/19. 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 2/98:50 amOPO - LAS
1 stop20h 38mAir Transat
Tue 2/2510:35 pmLAS - OPO
1 stop24h 30mAir Transat
Deal found 1/19$511
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 2/102:35 pmOPO - LAX
1 stop36h 30mMultiple Airlines
Sun 2/237:30 pmLAX - OPO
1 stop17h 50mMultiple Airlines
Deal found 1/20$530
This British Airways deal was found by Cheapflights users on 1/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/178:20 amOPO - SFO
2 stops23h 00mBritish Airways
Tue 4/14:35 pmSFO - OPO
1 stop18h 55mBritish Airways
Deal found 1/20$568
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/176:20 amOPO - SFO
2 stops21h 36mDelta
Tue 4/13:05 pmSFO - OPO
1 stop16h 25mDelta
Deal found 1/20$574
This AirNGo deal was found by Cheapflights users on 1/20. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/176:20 amOPO - SFO
1 stop37h 30mMultiple Airlines
Tue 4/13:05 pmSFO - OPO
1 stop16h 25mMultiple Airlines
Deal found 1/20$580
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Mon 3/178:20 amOPO - SFO
2 stops32h 21mAmerican Airlines
Mon 3/3112:15 amSFO - OPO
2 stops27h 25mAmerican Airlines
Deal found 1/20$584
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/246:40 pmOPO - LAS
1 stop25h 09mMultiple Airlines
Mon 3/3111:02 pmLAS - OPO
2 stops24h 58mMultiple Airlines
Deal found 1/20$631
This Gotogate deal was found by Cheapflights users on 1/20. 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.
Mon 3/177:20 pmOPO - SFO
1 stop29h 05mSWISS
Tue 4/17:05 pmSFO - OPO
1 stop28h 50mSWISS
Deal found 1/20$641
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2412:05 pmOPO - SFO
2 stops29h 15mUnited Airlines
Tue 5/612:43 amSFO - OPO
2 stops25h 02mUnited Airlines
Deal found 1/20$660
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/259:20 amOPO - LAX
1 stop17h 00mDelta
Tue 9/211:50 amLAX - OPO
2 stops19h 40mDelta
Deal found 1/20$672
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Fri 9/58:15 amOPO - LAX
1 stop15h 50mAmerican Airlines
Sat 9/1311:17 amLAX - OPO
2 stops16h 23mAmerican Airlines
Deal found 1/20$683

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 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Mon 3/10

9:55 pm-8:05 pm

1 stop29h 10m

Los Angeles

Sun 3/23

8:30 pm-8:00 am

1 stop28h 30m

$498

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 2/9

8:50 am-9:28 pm

1 stop20h 38m

Las Vegas Harry Reid Intl

Tue 2/25

10:35 pm-7:05 am

1 stop24h 30m

$511

PortoLos Angeles

OPO - LAX

OPOLAX

Porto

Mon 2/10

2:35 pm-7:05 pm

1 stop36h 30m

Los Angeles

Sun 2/23

7:30 pm-9:20 pm

1 stop17h 50m

$530

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 3/17

8:20 am-12:20 am

2 stops23h 00m

San Francisco

Tue 4/1

4:35 pm-7:30 pm

1 stop18h 55m

$568

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 3/17

6:20 am-8:56 pm

2 stops21h 36m

San Francisco

Tue 4/1

11:09 am-3:30 pm

2 stops20h 21m

$574

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 3/17

6:20 am-12:50 pm

1 stop37h 30m

San Francisco

Tue 4/1

3:05 pm-3:30 pm

1 stop16h 25m

$580

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 3/17

8:20 am-8:43 pm

2 stops43h 23m

San Francisco

Mon 3/31

12:25 am-7:35 am

2 stops23h 10m

$584

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 3/24

6:40 pm-12:49 pm

1 stop25h 09m

Las Vegas Harry Reid Intl

Mon 3/31

11:02 pm-8:00 am

2 stops24h 58m

$631

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Mon 3/17

7:20 pm-5:25 pm

1 stop29h 05m

San Francisco

Tue 4/1

7:05 pm-7:55 am

1 stop28h 50m

$641

PortoSan Francisco

OPO - SFO

OPOSFO

Porto

Thu 4/24

12:05 pm-9:20 am

2 stops29h 15m

San Francisco

Tue 5/6

12:43 am-9:45 am

2 stops25h 02m

$660

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 48 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, January is the cheapest month in which you can book a flight from Porto to California (average of $246). Flying from Porto to California in March is currently the most expensive (average of $344). 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 January 21, 2025.

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 January 21, 2025.
Read reviews from past customers who have flown Delta, American Airlines 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
8,521 reviews

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

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
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

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
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

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
381 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

SWISS
7.5
Good
1,599 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

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?

    $391 is the cheapest one-way deal found within the past few days, from Vueling. You may also be able to find cheap deals on Air Transat and Iberia, with prices starting from $447 and $457, 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, January is the cheapest month in which you can book a flight from Porto to California (average of $246). Flying from Porto to California in March is currently the most expensive (average of $344). 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.

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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 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$634Average$758FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$665Average$898FlexibilityNo cancel feeOn-time76%
KLMCheapest$762Average$1,317FlexibilityNo cancel feeOn-time75%
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