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$235+ Cheap flights from California to Portugal

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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LIS
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from California to Portugal

Cheapest flights from California to Portugal
Explore the most affordable flight options available from California to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This Finnair deal was found by Cheapflights users on 12/15. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:10 amSJC - LIS
2 stops16h 45mMultiple Airlines
Fri 1/306:30 amLIS - SJC
2 stops22h 59mMultiple Airlines
Deal found 12/15$499
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:15 pmSFO - LIS
2 stops33h 05mAir Canada
Tue 1/2011:20 amLIS - SFO
2 stops30h 18mAir Canada
Deal found 12/16$509
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 12/264:50 pmLAX - LIS
1 stop33h 25mUnited Airlines
Fri 1/1611:20 amLIS - LAX
1 stop35h 57mUnited Airlines
Deal found 12/15$515
This British Airways deal was found by Cheapflights users on 12/15. 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.
Wed 12/317:00 amLAX - LIS
1 stop15h 55mBritish Airways
Mon 1/126:35 pmLIS - LAX
1 stop26h 55mBritish Airways
Deal found 12/15$518
This oojo deal was found by Cheapflights users on 12/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:35 pmSFO - LIS
1 stop23h 20mBritish Airways
Mon 1/1910:35 amLIS - SFO
2 stops41h 35mBritish Airways
Deal found 12/16$521
This Expedia deal was found by Cheapflights users on 12/13. 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 12/299:40 pmSFO - LIS
1 stop17h 50mLufthansa
Mon 1/266:50 pmLIS - SFO
2 stops25h 50mLufthansa
Deal found 12/13$524
This American Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/307:00 amSFO - LIS
2 stops16h 40mAmerican Airlines
Wed 1/1411:05 amLIS - SFO
2 stops19h 20mAmerican Airlines
Deal found 12/15$528
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 12/264:50 pmLAX - LIS
1 stop33h 25mUnited Airlines
Thu 1/1511:20 amLIS - LAX
1 stop18h 40mUnited Airlines
Deal found 12/15$535
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 12/264:50 pmLAX - LIS
1 stop33h 25mUnited Airlines
Tue 1/1310:15 amLIS - LAX
1 stop16h 54mUnited Airlines
Deal found 12/15$536
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 12/264:50 pmLAX - LIS
1 stop33h 25mUnited Airlines
Mon 1/1911:20 amLIS - LAX
1 stop35h 57mUnited Airlines
Deal found 12/15$538
This FlightHub deal was found by Cheapflights users on 12/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:40 pmSFO - LIS
1 stop21h 20mLufthansa
Mon 1/196:50 pmLIS - SFO
2 stops29h 05mLufthansa
Deal found 12/15$548
This Finnair deal was found by Cheapflights users on 12/15. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:48 pmSAN - LIS
1 stop26h 17mMultiple Airlines
Fri 1/1611:05 amLIS - SAN
1 stop19h 53mMultiple Airlines
Deal found 12/15$549

Find flight deals from California to Portugal

Keep the following information in mind while searching for California to Portugal flight deals. Data was last updated December 16, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$434
(Kiwi.com)

One-way from

$235
(oojo)

Popular in

June

Cheapest in

November

Average price

$1,122

Good round-trip deal

$513 or less

Good one-way deal

$341 or less
Provider with most accurate pricing for Los Angeles-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Lisbon Humberto Delgado flights.
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From California to Portugal
Search Deals
One-way flight from California to Portugal
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($181 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from California to Portugal.
Search Deals
Price to beat on a one-way flight from California to Portugal.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Portugal 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 December 16, 2025.
Use the filters below to find and compare flights from California to Portugal that are best for you.

Fly from

California

Fly to

Portugal

Route

Depart

Return

Price

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Thu 3/5

6:20 pm-10:30 am

1 stop32h 10m

Porto

Sun 3/15

11:15 am-12:45 pm

1 stop32h 30m

$480

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Tue 1/13

6:15 am-9:20 am

2 stops19h 05m

Lisbon Humberto Delgado

Tue 1/20

11:20 am-10:31 pm

2 stops19h 11m

$480

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 1/12

6:15 am-8:10 am

2 stops17h 55m

Lisbon Humberto Delgado

Wed 1/28

6:10 am-3:45 pm

1 stop17h 35m

$482

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 3/2

7:20 am-10:30 am

2 stops19h 10m

Porto

Mon 3/9

5:00 am-12:45 pm

1 stop14h 45m

$483

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Wed 2/11

8:45 am-10:30 am

2 stops17h 45m

Porto

Wed 2/18

5:00 am-11:45 am

1 stop14h 45m

$483

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 3/4

7:45 am-7:55 pm

2 stops28h 10m

Lisbon Humberto Delgado

Wed 3/11

6:10 am-4:45 pm

1 stop17h 35m

$484

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Fri 1/16

9:24 am-8:50 am

1 stop15h 26m

Lisbon Humberto Delgado

Sun 1/25

4:10 pm-7:12 pm

2 stops35h 02m

$486

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 1/12

7:00 am-8:10 am

2 stops17h 10m

Lisbon Humberto Delgado

Thu 1/22

5:00 am-11:42 pm

2 stops26h 42m

$487

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 3/4

7:45 am-7:55 pm

2 stops28h 10m

Lisbon Humberto Delgado

Thu 3/12

5:00 am-9:03 pm

2 stops23h 03m

$487

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Sat 2/7

9:00 am-8:55 am

1 stop15h 55m

Lisbon Humberto Delgado

Sun 2/15

3:25 pm-8:55 pm

2 stops37h 30m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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

Have a flexible travel schedule? Discover the best time to fly to Portugal 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.

Cheapflights Insights

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

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

Currently, May is the cheapest month in which you can book a flight from California to Portugal (average of $403). Flying from California to Portugal in June is currently the most expensive (average of $672). 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 PT?

Find hourly flight availability from California to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

It’s typically best to fly out from California to Portugal in the evening. Doing so could potentially save you 20% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from California to Portugal?

Use this chart to determine the cheapest time to fly round-trip from California to Portugal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their California to Portugal flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

  • How popular is this California to Portugal flight route?

    Flights from California to Portugal have been viewed 56 times in the past calendar month.

  • How long is the flight from California to Portugal?

    Departing from California to Portugal will take you 17h 55m. There are 5677 mi between California and Portugal. This flight may include one or multiple stops.

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

    $225 is the cheapest one-way deal found within the past few days, from LEVEL. You may also be able to find cheap deals on Iberia and TAP AIR PORTUGAL, with prices starting from $254 and $265, respectively.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from California to Portugal (average of $403). Flying from California to Portugal in June is currently the most expensive (average of $672). 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 California to Portugal

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 Portugal

Discover the top 10 airlines that operate flights from California to Portugal. 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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$351Average$697FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$363Average$900FlexibilityNo cancel feeOn-time77%
SWISSCheapest$395Average$912FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$409Average$722FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$447Average$952FlexibilityNo cancel feeOn-time76%
KLMCheapest$476Average$814FlexibilityNo cancel feeOn-time75%
DeltaCheapest$492Average$919FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$495Average$757FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$505Average$978FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$515Average$1,063FlexibilityNo cancel feeOn-time69%

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