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Portugal

$303+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LIS
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$556
(United Airlines)

One-way from

$303
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$906
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. 7% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Air France deal was found by Cheapflights users on 9/14. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/133:59 pmSAN - LIS
2 stops17h 51mMultiple Airlines
Tue 10/215:00 amLIS - SAN
1 stop15h 00mMultiple Airlines
Deal found 9/14$600
This Gurufare deal was found by Cheapflights users on 9/14. 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 10/75:15 pmSAN - LIS
1 stop20h 35mLufthansa
Tue 10/212:25 pmLIS - SAN
1 stop33h 00mLufthansa
Deal found 9/14$603
This Gurufare deal was found by Cheapflights users on 9/14. 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 10/84:07 pmSAN - LIS
2 stops23h 13mMultiple Airlines
Wed 10/222:30 pmLIS - SAN
1 stop32h 55mMultiple Airlines
Deal found 9/14$605
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/231:55 pmSAN - LIS
2 stops19h 55mDelta
Tue 10/145:00 amLIS - SAN
1 stop15h 00mDelta
Deal found 9/15$606
This Air France deal was found by Cheapflights users on 9/16. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/612:00 pmSAN - LIS
2 stops18h 50mMultiple Airlines
Mon 10/133:35 pmLIS - SAN
1 stop28h 25mMultiple Airlines
Deal found 9/16$607
This Lufthansa deal was found by Cheapflights users on 9/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/65:35 pmSAN - LIS
1 stop21h 55mLufthansa
Thu 12/46:10 amLIS - SAN
1 stop17h 35mLufthansa
Deal found 9/16$608
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1312:08 pmSAN - LIS
2 stops38h 07mUnited Airlines
Sun 12/215:00 amLIS - SAN
2 stops37h 30mUnited Airlines
Deal found 9/16$612
This KAYAK deal was found by Cheapflights users on 9/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/65:35 pmSAN - LIS
1 stop21h 55mLufthansa
Fri 12/56:10 amLIS - SAN
1 stop17h 35mLufthansa
Deal found 9/16$613
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 11/110:30 pmSAN - LIS
2 stops28h 45mUnited Airlines
Thu 11/136:10 amLIS - SAN
1 stop17h 35mUnited Airlines
Deal found 9/15$616
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:59 amSAN - LIS
2 stops20h 51mDelta
Mon 10/69:50 amLIS - SAN
2 stops21h 24mDelta
Deal found 9/16$617
This Lufthansa deal was found by Cheapflights users on 9/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/65:35 pmSAN - LIS
1 stop21h 55mLufthansa
Tue 12/22:10 pmLIS - SAN
1 stop33h 35mLufthansa
Deal found 9/16$618
This Lufthansa deal was found by Cheapflights users on 9/14. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:35 pmSAN - OPO
1 stop22h 05mLufthansa
Sun 12/76:15 amOPO - SAN
1 stop17h 30mLufthansa
Deal found 9/14$629

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 September 16, 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 3/10

12:15 pm-9:30 am

1 stop14h 15m

Porto

Tue 3/17

6:00 am-11:38 am

2 stops36h 38m

$556

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 3/10

7:10 am-9:30 am

1 stop19h 20m

Porto

Tue 3/17

1:45 pm-4:45 pm

1 stop34h 00m

$562

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sat 12/13

8:00 pm-10:15 am

3 stops30h 15m

Lisbon Humberto Delgado

Sun 12/21

5:00 am-10:30 am

2 stops37h 30m

$605

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 10/7

3:59 pm-5:50 pm

2 stops17h 51m

Lisbon Humberto Delgado

Tue 10/14

5:00 am-12:00 pm

1 stop15h 00m

$606

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 10/1

9:45 am-2:50 pm

2 stops21h 05m

Lisbon Humberto Delgado

Thu 10/23

5:00 am-12:00 pm

1 stop15h 00m

$606

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 11/6

5:35 pm-11:30 pm

1 stop21h 55m

Lisbon Humberto Delgado

Thu 12/4

6:10 am-3:45 pm

1 stop17h 35m

$608

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sat 11/1

10:30 pm-10:15 am

2 stops28h 45m

Lisbon Humberto Delgado

Thu 11/13

6:10 am-3:45 pm

1 stop17h 35m

$616

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 10/2

9:59 am-2:50 pm

2 stops20h 51m

Lisbon Humberto Delgado

Mon 10/6

9:50 am-11:14 pm

2 stops21h 24m

$617

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 11/26

5:55 pm-9:20 am

3 stops31h 25m

Lisbon Humberto Delgado

Wed 12/3

5:00 am-11:42 pm

2 stops26h 42m

$623

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Fri 11/21

12:55 pm-10:15 am

1 stop13h 20m

Lisbon Humberto Delgado

Sat 11/29

11:55 am-11:58 pm

2 stops20h 03m

$626

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 49 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 $1,127). 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 September 16, 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.

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 September 16, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from San Diego to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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.
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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 Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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.
British Airways
6.7
Okay
7,363 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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.

  • How long is the flight from San Diego to Portugal?

    Airlines like United Airlines, Delta, and Lufthansa fly from San Diego to Portugal in about 14h 15m. The time it takes to get you to your destination can typically vary by up to 7h 40m. San Diego and Portugal are separated by a distance of 5596 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $382. Air Canada flights start at $523 while deals on United Airlines start at $528 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 $1,127). 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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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$593Average$675FlexibilityNo cancel feeOn-time72%
DeltaCheapest$597Average$826FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$598Average$913FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$599Average$1,159FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$601Average$1,044FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$626Average$1,091FlexibilityNo cancel feeOn-time70%
KLMCheapest$626Average$752FlexibilityNo cancel feeOn-time75%
Scandinavian AirlinesCheapest$631Average$868FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$659Average$1,163FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$671Average$972FlexibilityNo cancel feeOn-time67%

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