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$280+ Cheap flights from California to Porto (OPO)

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — OPO
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from California to Porto

Keep the following information in mind while searching for California to Porto flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$602
(Gotogate)

One-way from

$280
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$662
Provider with most accurate pricing for Los Angeles-Porto flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Porto flights.
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From California to Porto
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One-way flight from California to Porto
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Highest demand for flights based on searches. 14% potential increase in price ($168 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from California to Porto

Cheapest flights from California to Porto
Explore the most affordable flight options available from California to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Gotogate deal was found by Cheapflights users on 2/20. 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.
Sun 3/168:30 amSFO - OPO
2 stops20h 05mAir Canada
Tue 4/16:00 amOPO - SFO
2 stops23h 37mAir Canada
Deal found 2/20$602
This Gotogate deal was found by Cheapflights users on 2/20. 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.
Sun 3/1611:35 amLAX - OPO
2 stops20h 35mAir Canada
Tue 4/112:05 pmOPO - LAX
2 stops30h 19mAir Canada
Deal found 2/20$608
This Gotogate deal was found by Cheapflights users on 2/19. 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.
Sun 3/168:10 pmLAX - OPO
1 stop15h 20mMultiple Airlines
Tue 4/16:00 amOPO - LAX
2 stops23h 19mMultiple Airlines
Deal found 2/19$614
This Gotogate deal was found by Cheapflights users on 2/20. 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.
Sun 3/168:25 pmSFO - OPO
1 stop15h 05mMultiple Airlines
Tue 4/112:05 pmOPO - SFO
2 stops30h 32mMultiple Airlines
Deal found 2/20$617
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:30 pmLAX - OPO
1 stop37h 35mScandinavian Airlines
Mon 12/112:05 pmOPO - LAX
1 stop36h 55mScandinavian Airlines
Deal found 2/20$619
This United deal was found by Cheapflights users on 2/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/210:40 amSFO - OPO
1 stop15h 05mUnited Airlines
Wed 4/912:10 pmOPO - SFO
1 stop15h 50mUnited Airlines
Deal found 2/20$627
This KLM deal was found by Cheapflights users on 2/20. 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.
Wed 3/51:45 pmLAX - OPO
1 stop34h 30mKLM
Tue 3/1111:15 amOPO - LAX
1 stop32h 30mKLM
Deal found 2/20$630
This Kiwi.com deal was found by Cheapflights users on 2/20. 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 3/178:10 pmLAX - OPO
1 stop15h 30mSWISS
Mon 3/247:20 pmOPO - LAX
1 stop29h 10mSWISS
Deal found 2/20$633
This Gotogate deal was found by Cheapflights users on 2/20. 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.
Sun 3/168:25 pmSFO - OPO
1 stop15h 05mSWISS
Tue 4/18:40 amOPO - SFO
1 stop15h 30mSWISS
Deal found 2/20$634
This Gotogate deal was found by Cheapflights users on 2/20. 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.
Sun 3/164:05 pmLAX - OPO
1 stop16h 05mLufthansa
Tue 4/16:15 amOPO - LAX
1 stop17h 00mLufthansa
Deal found 2/20$636
This Delta deal was found by Cheapflights users on 2/20. 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.
Sun 3/167:30 pmLAX - OPO
1 stop32h 20mDelta
Tue 4/16:20 amOPO - LAX
1 stop37h 30mDelta
Deal found 2/20$639
This Expedia deal was found by Cheapflights users on 2/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/249:40 pmSFO - OPO
2 stops27h 00mBritish Airways
Fri 4/412:20 pmOPO - SFO
2 stops19h 21mBritish Airways
Deal found 2/20$641

Find flights from California to Porto within your budget

Customize your flight search to find flights from California to Porto 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 20, 2025.

Fly from

California

Fly to

Porto

Route

Depart

Return

Price

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Sun 3/16

8:30 am-11:35 am

2 stops20h 05m

Porto

Tue 4/1

6:00 am-9:37 pm

2 stops23h 37m

$602

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Sun 3/16

11:35 am-3:10 pm

2 stops20h 35m

Porto

Tue 4/1

12:05 pm-10:24 am

2 stops30h 19m

$608

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Sun 3/16

8:10 pm-6:30 pm

1 stop15h 20m

Porto

Tue 4/1

6:00 am-9:19 pm

2 stops23h 19m

$614

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Sun 3/16

8:25 pm-6:30 pm

1 stop15h 05m

Porto

Tue 4/1

12:05 pm-10:37 am

2 stops30h 32m

$617

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Wed 4/2

10:40 am-9:45 am

1 stop15h 05m

Porto

Wed 4/9

12:10 pm-8:00 pm

1 stop15h 50m

$627

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Wed 3/5

1:45 pm-8:15 am

1 stop34h 30m

Porto

Tue 3/11

11:15 am-12:45 pm

1 stop32h 30m

$630

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 3/17

8:10 pm-6:40 pm

1 stop15h 30m

Porto

Mon 3/24

7:20 pm-5:30 pm

1 stop29h 10m

$633

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Sun 3/16

8:25 pm-6:30 pm

1 stop15h 05m

Porto

Tue 4/1

8:40 am-4:10 pm

1 stop15h 30m

$634

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Sun 3/16

4:05 pm-3:10 pm

1 stop16h 05m

Porto

Tue 4/1

6:15 am-3:15 pm

1 stop17h 00m

$636

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Sun 3/16

7:30 pm-10:50 am

1 stop32h 20m

Porto

Tue 4/1

6:20 am-11:50 am

1 stop37h 30m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 60 results
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Best time to book a flight from California to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from California 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 California to Porto

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

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

Currently, January is the cheapest month in which you can book a flight from California to Porto (average of $523). Flying from California to Porto in June is currently the most expensive (average of $1,092). 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 CA to OPO?

Find hourly flight availability from California to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from California to Porto as you normally would.

Rainfall in Porto by month

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

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

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

If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated February 20, 2025.
To help decide which airline to fly from California to Porto, see what other customers have to say about Delta, KLM and Air Transat. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat
7.8
Good
380 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines
7.6
Good
773 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from California to Porto. 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 into for flights to Porto from California?

    Located just 6.8 mi from the city center, Porto (OPO) is the airport most travelers will use when flying to Porto from California.

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

    The cheapest airlines for a one-way flight from California to Porto are TAP AIR PORTUGAL ($441), Air Transat ($481), and United Airlines ($482).

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

    The most popular route from California to Porto is Los Angeles - Porto. You may also consider San Francisco - Porto or San Jose - Porto.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from California to Porto 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 California to Porto?

    Currently, January is the cheapest month in which you can book a flight from California to Porto (average of $523). Flying from California to Porto in June is currently the most expensive (average of $1,092). 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

Traveling to a place near California?

Book flights to California if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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Alternative routes for California to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from California to Porto

Discover the top 10 airlines that operate flights from California to Porto. 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 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$375Average$943FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$435Average$587FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$502Average$952FlexibilityNo cancel feeOn-time88%
IberiaCheapest$516Average$1,084FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$547Average$1,099FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$550Average$899FlexibilityNo cancel feeOn-time70%
DeltaCheapest$553Average$1,051FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$596Average$1,034FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$617Average$908FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$666Average$1,027FlexibilityNo cancel feeOn-time67%
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