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Portugal

$394+ Cheap flights from San Diego (SAN) 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LIS
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from San Diego to Portugal

Keep the following information in mind while searching for San Diego to Portugal flight deals. Data was last updated April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$755
(American Airlines)

One-way from

$394
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$957
Provider with most accurate pricing for San Diego-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for San Diego-Lisbon Humberto Delgado flights.
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From San Diego to Portugal
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One-way flight from San Diego to Portugal
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Highest demand for flights based on searches. 2% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from San Diego to Portugal

Cheapest flights from San Diego to Portugal
Explore the most affordable flight options available from San Diego to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Iberia deal was found by Cheapflights users on 4/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/288:40 amSAN - OPO
2 stops20h 05mIberia
Tue 11/118:40 pmOPO - SAN
2 stops31h 27mIberia
Deal found 4/29$577
This KLM deal was found by Cheapflights users on 4/29. 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.
Tue 10/288:50 amSAN - OPO
2 stops19h 00mKLM
Tue 11/115:00 amOPO - SAN
1 stop15h 05mKLM
Deal found 4/29$649
This American Airlines deal was found by Cheapflights users on 4/29. 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 9/232:54 pmSAN - OPO
2 stops17h 01mAmerican Airlines
Wed 10/112:20 pmOPO - SAN
2 stops19h 12mAmerican Airlines
Deal found 4/29$755
This Air Canada deal was found by Cheapflights users on 4/27. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:30 pmSAN - LIS
2 stops26h 50mAir Canada
Sun 11/911:00 amLIS - SAN
2 stops33h 36mAir Canada
Deal found 4/27$763
This Delta deal was found by Cheapflights users on 4/27. 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 11/76:15 amSAN - LIS
2 stops21h 05mDelta
Sun 11/911:25 amLIS - SAN
2 stops20h 56mDelta
Deal found 4/27$769
This British Airways deal was found by Cheapflights users on 4/27. 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.
Fri 11/76:10 pmSAN - LIS
1 stop15h 45mBritish Airways
Sun 11/96:40 pmLIS - SAN
1 stop29h 25mBritish Airways
Deal found 4/27$789
This FlightHub deal was found by Cheapflights users on 4/29. 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 9/2310:30 pmSAN - OPO
2 stops26h 50mMultiple Airlines
Wed 10/16:15 amOPO - SAN
1 stop17h 10mMultiple Airlines
Deal found 4/29$799
This Gurufare deal was found by Cheapflights users on 4/29. 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.
Tue 9/235:15 pmSAN - OPO
1 stop22h 05mLufthansa
Wed 10/16:15 amOPO - SAN
1 stop17h 10mLufthansa
Deal found 4/29$815
This Expedia deal was found by Cheapflights users on 4/28. 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.
Wed 10/157:50 pmSAN - FAO
1 stop36h 15mBritish Airways
Sat 10/256:45 pmFAO - SAN
1 stop30h 20mBritish Airways
Deal found 4/28$818
This United Airlines deal was found by Cheapflights users on 4/27. 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 7/410:54 amSAN - LIS
2 stops40h 11mUnited Airlines
Sat 7/2612:55 pmLIS - SAN
1 stop30h 50mUnited Airlines
Deal found 4/27$836
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 7/2610:55 pmSAN - LIS
1 stop26h 10mAmerican Airlines
Fri 8/811:05 amLIS - SAN
1 stop15h 27mAmerican Airlines
Deal found 4/29$843
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/292:11 pmSAN - LIS
2 stops23h 39mMultiple Airlines
Fri 9/1211:25 amLIS - SAN
1 stop16h 10mMultiple Airlines
Deal found 4/29$847

Cheapflights Fare Finder

Customize your flight search to find flights from San Diego 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 April 29, 2025.
Use the filters below to find and compare flights from San Diego to Portugal that are best for you.

Fly from

San Diego

Fly to

Portugal

Route

Depart

Return

Price

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 9/23

2:54 pm-3:55 pm

2 stops17h 01m

Porto

Wed 10/1

12:20 pm-11:32 pm

2 stops19h 12m

$755

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 9/23

10:30 pm-9:20 am

2 stops26h 50m

Porto

Wed 10/1

6:15 am-3:25 pm

1 stop17h 10m

$799

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 9/23

5:15 pm-11:20 pm

1 stop22h 05m

Porto

Wed 10/1

6:15 am-3:25 pm

1 stop17h 10m

$815

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Wed 10/15

7:50 pm-4:05 pm

1 stop36h 15m

Faro

Sat 10/25

6:45 pm-5:05 pm

1 stop30h 20m

$818

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sat 7/19

10:20 pm-11:05 am

2 stops28h 45m

Lisbon Humberto Delgado

Mon 7/28

12:50 pm-7:38 pm

2 stops38h 48m

$834

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Fri 7/4

10:54 am-11:05 am

2 stops40h 11m

Lisbon Humberto Delgado

Sat 7/26

12:55 pm-11:45 am

1 stop30h 50m

$836

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sat 7/26

10:55 pm-9:05 am

1 stop26h 10m

Lisbon Humberto Delgado

Fri 8/8

11:05 am-6:32 pm

1 stop15h 27m

$843

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Sat 9/20

4:55 pm-9:35 am

2 stops56h 40m

Porto

Sat 10/4

6:00 am-11:41 am

2 stops37h 41m

$850

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 7/15

8:10 am-9:20 am

1 stop17h 10m

Lisbon Humberto Delgado

Thu 7/31

6:15 am-3:25 pm

1 stop17h 10m

$851

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 7/16

4:40 pm-3:40 pm

1 stop15h 00m

Lisbon Humberto Delgado

Fri 8/1

11:05 am-8:03 pm

1 stop16h 58m

$862

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 48 results
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Best time to book a flight from San Diego to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from San Diego 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 San Diego to Portugal

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

Currently, January is the cheapest month in which you can book a flight from San Diego to Portugal (average of $612). Flying from San Diego to Portugal in June is currently the most expensive (average of $1,178). 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 SAN to PT?

Find hourly flight availability from San Diego 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 April 29, 2025.

When flying from San Diego to Portugal, 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 Portugal by month

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

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

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

If weather is an important factor for your trip to Portugal, 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 51.8 F).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated April 29, 2025.
To help decide which airline to fly from San Diego to Portugal, see what other customers have to say about Delta, KLM and Air Transat. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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
385 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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.
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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
1,588 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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 San Diego to Portugal. 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 San Diego to Portugal?

    If you book a flight to Portugal from San Diego, you will be flying from San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego.

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

    To fly one-way, consider booking your trip with Scandinavian Airlines, which is currently one of the cheapest options available, starting at $495. Air Canada flights start at $526 while deals on United Airlines start at $531 one-way.

  • What are the most popular routes from San Diego to Portugal?

    When deciding which route to take from San Diego to Portugal consider San Diego - Lisbon Humberto Delgado, San Diego - Porto or San Diego - Faro as they are the most popular.

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

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

  • How can I find direct flights from San Diego to Portugal?

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

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

    Yes. Cheapflights offers flight deals from San Diego 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 San Diego to Portugal?

    Currently, January is the cheapest month in which you can book a flight from San Diego to Portugal (average of $612). Flying from San Diego to Portugal in June is currently the most expensive (average of $1,178). 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 San Diego 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 San Diego to Portugal

Discover the top 10 airlines that operate flights from San Diego 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$547Average$1,021FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$589Average$1,176FlexibilityNo cancel feeOn-time77%
IberiaCheapest$598Average$879FlexibilityNo cancel feeOn-time77%
KLMCheapest$626Average$898FlexibilityNo cancel feeOn-time75%
Scandinavian AirlinesCheapest$631Average$868FlexibilityNo cancel feeOn-time77%
DeltaCheapest$666Average$1,006FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$672Average$1,072FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$687Average$1,208FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$775Average$1,020FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$788Average$1,053FlexibilityNo cancel feeOn-time67%

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