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Portugal

$325+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LIS
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$590
(Air Canada)

One-way from

$325
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,059
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. 4% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This Air Canada deal was found by Cheapflights users on 6/30. 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.
Mon 12/16:10 pmSAN - LIS
2 stops30h 45mAir Canada
Wed 12/105:00 amLIS - SAN
2 stops38h 18mAir Canada
Deal found 6/30$590
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Mon 12/112:10 pmSAN - LIS
1 stop13h 10mUnited Airlines
Wed 12/1011:00 amLIS - SAN
2 stops37h 11mUnited Airlines
Deal found 6/30$591
This CheapOair deal was found by Cheapflights users on 6/30. 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.
Mon 8/1812:40 pmSAN - LIS
2 stops36h 40mMultiple Airlines
Wed 8/276:15 amLIS - SAN
1 stop17h 10mMultiple Airlines
Deal found 6/30$601
This Expedia deal was found by Cheapflights users on 7/1. 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 12/86:41 amSAN - LIS
1 stop18h 24mBritish Airways
Wed 12/1711:15 amLIS - SAN
1 stop15h 12mBritish Airways
Deal found 7/1$605
This Lufthansa deal was found by Cheapflights users on 6/30. 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.
Sun 12/285:35 pmSAN - LIS
1 stop21h 55mLufthansa
Wed 1/75:00 amLIS - SAN
2 stops20h 24mLufthansa
Deal found 6/30$610
This CheapOair deal was found by Cheapflights users on 7/1. 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.
Tue 10/2811:50 amSAN - OPO
2 stops18h 00mMultiple Airlines
Tue 11/116:00 amOPO - SAN
2 stops22h 54mMultiple Airlines
Deal found 7/1$614
This Iberia deal was found by Cheapflights users on 7/1. 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 10/211:12 pmSAN - LIS
2 stops18h 53mIberia
Thu 11/206:30 amLIS - SAN
2 stops23h 24mIberia
Deal found 7/1$617
This SWISS deal was found by Cheapflights users on 7/1. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/144:00 pmSAN - LIS
2 stops23h 20mSWISS
Sat 8/305:55 amLIS - SAN
2 stops22h 53mSWISS
Deal found 7/1$626
This FlightHub deal was found by Cheapflights users on 7/2. 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 10/287:00 amSAN - OPO
2 stops24h 45mLufthansa
Tue 11/111:45 pmOPO - SAN
1 stop34h 00mLufthansa
Deal found 7/2$626
This Delta deal was found by Cheapflights users on 7/1. 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.
Wed 9/241:15 pmSAN - LIS
2 stops20h 40mDelta
Wed 10/15:40 amLIS - SAN
2 stops22h 53mDelta
Deal found 7/1$649
This Iberia deal was found by Cheapflights users on 7/1. 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.
Sat 11/110:52 amSAN - OPO
2 stops37h 48mIberia
Tue 11/118:40 pmOPO - SAN
2 stops34h 13mIberia
Deal found 7/1$650
This Finnair deal was found by Cheapflights users on 7/1. 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 12/2410:53 amSAN - LIS
2 stops20h 32mFinnair
Sun 1/184:10 pmLIS - SAN
2 stops33h 40mFinnair
Deal found 7/1$663

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 July 3, 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 DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 12/1

6:10 pm-8:55 am

2 stops30h 45m

Lisbon Humberto Delgado

Wed 12/10

5:00 am-11:18 am

2 stops38h 18m

$590

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 12/1

12:10 pm-9:20 am

1 stop13h 10m

Lisbon Humberto Delgado

Wed 12/10

11:00 am-4:11 pm

2 stops37h 11m

$591

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 8/18

8:10 am-9:20 am

1 stop17h 10m

Lisbon Humberto Delgado

Wed 8/27

6:15 am-3:25 pm

1 stop17h 10m

$601

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 12/8

6:41 am-9:05 am

1 stop18h 24m

Lisbon Humberto Delgado

Wed 12/17

11:15 am-6:27 pm

1 stop15h 12m

$605

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sun 12/28

5:35 pm-11:30 pm

1 stop21h 55m

Lisbon Humberto Delgado

Wed 1/7

5:00 am-5:24 pm

2 stops20h 24m

$610

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 10/21

1:12 pm-4:05 pm

2 stops18h 53m

Lisbon Humberto Delgado

Thu 11/20

6:30 am-9:54 pm

2 stops23h 24m

$617

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 8/14

4:00 pm-11:20 pm

2 stops23h 20m

Lisbon Humberto Delgado

Sat 8/30

5:55 am-8:48 pm

2 stops22h 53m

$626

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 9/24

1:15 pm-5:55 pm

2 stops20h 40m

Lisbon Humberto Delgado

Wed 10/1

5:40 am-8:33 pm

2 stops22h 53m

$649

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 12/24

10:53 am-3:25 pm

2 stops20h 32m

Lisbon Humberto Delgado

Sun 1/18

4:10 pm-5:50 pm

2 stops33h 40m

$663

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Sun 8/17

7:00 am-9:55 am

1 stop18h 55m

Faro

Mon 8/25

3:55 pm-3:25 pm

1 stop31h 30m

$713

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 $1,130). 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 July 3, 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 July 3, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Finnair 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
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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
1,306 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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 France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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
1,654 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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 Air Canada, which is currently one of the cheapest options available, starting at $442. Delta flights start at $463 while deals on United Airlines start at $468 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 $1,130). 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 9 airlines flying from San Diego to Portugal

Discover the top 9 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$512Average$952FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$547Average$967FlexibilityNo cancel feeOn-time76%
IberiaCheapest$598Average$891FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$609Average$1,191FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$621Average$1,075FlexibilityNo cancel feeOn-time70%
KLMCheapest$626Average$847FlexibilityNo cancel feeOn-time75%
Scandinavian AirlinesCheapest$631Average$868FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$692Average$978FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$693Average$1,063FlexibilityNo cancel feeOn-time71%

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