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Portugal

$321+ 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LIS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$597
(Mytrip)

One-way from

$321
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,278
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 ($46 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 June 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:02 amSAN - OPO
2 stops28h 23mLufthansa
Tue 11/1112:30 pmOPO - SAN
2 stops39h 22mLufthansa
Deal found 6/11$597
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 10/288:00 amSAN - OPO
3 stops23h 45mUnited Airlines
Tue 11/116:00 amOPO - SAN
2 stops26h 12mUnited Airlines
Deal found 6/11$614
This Iberia deal was found by Cheapflights users on 6/11. 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 6/11$617
This FlightHub deal was found by Cheapflights users on 6/11. 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 12/111:02 amSAN - OPO
2 stops19h 53mMultiple Airlines
Mon 12/2212:05 pmOPO - SAN
2 stops42h 32mMultiple Airlines
Deal found 6/11$621
This United Airlines deal was found by Cheapflights users on 6/11. 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 6/285:30 pmSAN - PDL
2 stops32h 10mUnited Airlines
Fri 7/1111:00 amPDL - SAN
2 stops18h 14mUnited Airlines
Deal found 6/11$677
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Tue 9/234:55 pmSAN - OPO
2 stops32h 25mAir Canada
Wed 10/16:00 amOPO - SAN
2 stops37h 52mAir Canada
Deal found 6/11$734
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 7/105:15 pmSAN - LIS
1 stop20h 35mUnited Airlines
Sun 7/206:40 amLIS - SAN
2 stops35h 32mUnited Airlines
Deal found 6/10$757
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:10 pmSAN - LIS
1 stop20h 15mBritish Airways
Sun 11/97:05 amLIS - SAN
1 stop17h 00mBritish Airways
Deal found 6/11$759
This Air Canada deal was found by Cheapflights users on 6/11. 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 8/218:10 amSAN - LIS
1 stop17h 10mAir Canada
Sat 9/1312:55 pmLIS - SAN
2 stops19h 20mAir Canada
Deal found 6/11$762
This Delta deal was found by Cheapflights users on 6/10. 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 6/246:15 amSAN - LIS
2 stops24h 35mDelta
Thu 7/35:40 amLIS - SAN
2 stops25h 13mDelta
Deal found 6/10$764
This CheapOair deal was found by Cheapflights users on 6/12. 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.
Wed 8/138:10 amSAN - LIS
1 stop17h 10mMultiple Airlines
Sat 8/236:15 amLIS - SAN
1 stop17h 10mMultiple Airlines
Deal found 6/12$769
This Delta deal was found by Cheapflights users on 6/11. 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 9/2410:00 amSAN - OPO
2 stops21h 30mDelta
Thu 10/24:20 pmOPO - SAN
2 stops27h 01mDelta
Deal found 6/11$785

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 June 12, 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

Mon 8/4

8:10 am-10:25 pm

2 stops30h 15m

Porto

Wed 8/20

7:15 am-7:38 pm

2 stops20h 23m

$640

San DiegoPonta Delgada

SAN - PDL

SANPDL

San Diego

Sat 6/28

10:30 pm-8:40 am

1 stop27h 10m

Ponta Delgada Nordela

Fri 7/11

11:00 am-7:07 pm

1 stop15h 07m

$677

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 7/10

5:15 pm-9:50 pm

1 stop20h 35m

Lisbon Humberto Delgado

Sun 7/20

6:40 am-10:12 am

2 stops35h 32m

$757

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Fri 10/31

7:10 pm-10:25 pm

1 stop20h 15m

Lisbon Humberto Delgado

Sun 11/9

7:05 am-4:05 pm

1 stop17h 00m

$759

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 8/21

8:10 am-9:20 am

1 stop17h 10m

Lisbon Humberto Delgado

Sat 9/13

12:55 pm-12:15 am

2 stops19h 20m

$762

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 6/24

6:15 am-2:50 pm

2 stops24h 35m

Lisbon Humberto Delgado

Thu 7/3

5:40 am-10:53 pm

2 stops25h 13m

$764

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 8/13

8:10 am-9:20 am

1 stop17h 10m

Lisbon Humberto Delgado

Sat 8/23

6:15 am-3:25 pm

1 stop17h 10m

$769

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Mon 8/4

9:59 am-3:30 pm

2 stops21h 31m

Porto

Wed 8/20

11:25 am-12:00 pm

1 stop32h 35m

$792

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Mon 8/4

8:10 am-9:35 am

1 stop17h 25m

Porto

Wed 8/20

6:15 am-9:53 pm

2 stops23h 38m

$816

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 8/28

10:04 am-3:40 pm

2 stops21h 36m

Lisbon Humberto Delgado

Sun 9/7

4:30 pm-6:03 pm

2 stops33h 33m

$869

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 45 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 $1,136). 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 June 12, 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 June 12, 2025.
To help decide which airline to fly from San Diego to Portugal, see what other customers have to say about Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
1,290 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
1,623 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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.
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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 United Airlines, which is currently one of the cheapest options available, starting at $442. Air Canada flights start at $470 while deals on Lufthansa start at $481 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 $1,136). 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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See prices for flight routes from nearby airports that may be better suited for you.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$512Average$1,012FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$547Average$973FlexibilityNo cancel feeOn-time76%
IberiaCheapest$598Average$913FlexibilityNo cancel feeOn-time77%
KLMCheapest$626Average$866FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$631Average$1,204FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$631Average$868FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$647Average$1,072FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$742Average$1,001FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$772Average$1,042FlexibilityNo cancel feeOn-time71%

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