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Portugal

$298+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LIS
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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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 November 6, 2025.

This Lufthansa deal was found by Cheapflights users on 11/5. 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 11/5$477
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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 12/55:35 pmSAN - OPO
1 stop22h 05mLufthansa
Tue 12/96:00 amOPO - SAN
2 stops22h 45mLufthansa
Deal found 11/5$479
This Delta deal was found by Cheapflights users on 11/4. 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 12/38:00 amSAN - OPO
2 stops18h 30mDelta
Sun 12/711:15 amOPO - SAN
2 stops44h 44mDelta
Deal found 11/4$491
This Finnair deal was found by Cheapflights users on 11/6. 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.
Mon 12/156:30 amSAN - LIS
1 stop18h 35mMultiple Airlines
Fri 12/2611:05 amLIS - SAN
1 stop18h 43mMultiple Airlines
Deal found 11/6$567
This Air France deal was found by Cheapflights users on 11/6. 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.
Sat 12/61:12 pmSAN - LIS
1 stop35h 43mAir France
Sat 12/2011:15 amLIS - SAN
1 stop17h 39mAir France
Deal found 11/6$573
This oojo deal was found by Cheapflights users on 11/6. 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.
Sun 11/93:05 pmSAN - LIS
2 stops43h 50mBritish Airways
Mon 11/176:35 pmLIS - SAN
2 stops34h 13mBritish Airways
Deal found 11/6$585
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/175:55 pmSAN - LIS
3 stops31h 25mUnited Airlines
Sun 11/235:00 amLIS - SAN
2 stops37h 21mUnited Airlines
Deal found 11/5$587
This United Airlines deal was found by Cheapflights users on 11/6. 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 12/127:00 amSAN - LIS
2 stops19h 15mUnited Airlines
Wed 12/2411:55 amLIS - SAN
1 stop16h 57mUnited Airlines
Deal found 11/6$597
This Delta deal was found by Cheapflights users on 11/6. 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.
Sun 12/1410:30 pmSAN - LIS
2 stops25h 30mDelta
Tue 12/2311:15 amLIS - SAN
1 stop17h 39mDelta
Deal found 11/6$615
This Lufthansa deal was found by Cheapflights users on 11/5. 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.
Mon 11/2412:43 pmSAN - LIS
2 stops18h 07mLufthansa
Tue 12/96:10 amLIS - SAN
2 stops19h 24mLufthansa
Deal found 11/5$620
This United Airlines deal was found by Cheapflights users on 11/4. 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 12/299:30 pmSAN - LIS
1 stop28h 45mUnited Airlines
Thu 1/811:20 amLIS - SAN
2 stops36h 13mUnited Airlines
Deal found 11/4$631
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Sun 12/147:42 amSAN - LIS
1 stop18h 33mUnited Airlines
Wed 12/2411:55 amLIS - SAN
1 stop16h 57mUnited Airlines
Deal found 11/6$636

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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$477
(Lufthansa)

One-way from

$324
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$795
Provider with most accurate pricing for San Diego-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Lisbon Humberto Delgado flights.
Search Deals
From San Diego to Portugal
Search Deals
One-way flight from San Diego to Portugal
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 6, 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

Wed 12/3

5:35 pm-11:40 pm

1 stop22h 05m

Porto

Sun 12/7

6:15 am-3:45 pm

1 stop17h 30m

$477

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Fri 12/5

5:35 pm-11:40 pm

1 stop22h 05m

Porto

Tue 12/9

6:00 am-8:45 pm

2 stops22h 45m

$479

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Wed 12/3

8:00 am-10:30 am

2 stops18h 30m

Porto

Sun 12/7

11:15 am-11:59 pm

2 stops44h 44m

$491

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 1/7

6:00 pm-12:10 pm

1 stop34h 10m

Lisbon Humberto Delgado

Fri 1/23

7:05 am-4:10 pm

1 stop17h 05m

$557

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 1/27

6:00 pm-9:55 am

1 stop31h 55m

Lisbon Humberto Delgado

Sat 2/14

11:05 am-4:05 pm

1 stop37h 00m

$558

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 4/1

3:59 pm-5:50 pm

2 stops17h 51m

Lisbon Humberto Delgado

Thu 4/16

5:00 am-3:19 pm

2 stops18h 19m

$560

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sat 4/25

7:44 pm-9:20 am

3 stops29h 36m

Lisbon Humberto Delgado

Sun 5/10

6:15 am-3:25 pm

1 stop17h 10m

$565

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 3/26

6:30 am-7:55 am

2 stops18h 25m

Lisbon Humberto Delgado

Tue 4/7

6:15 am-3:25 pm

1 stop17h 10m

$565

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 12/15

6:30 am-9:05 am

1 stop18h 35m

Lisbon Humberto Delgado

Fri 12/26

11:05 am-9:48 pm

1 stop18h 43m

$567

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Fri 4/10

1:10 pm-9:20 am

2 stops60h 10m

Lisbon Humberto Delgado

Sun 4/19

5:05 am-5:49 pm

2 stops20h 44m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 37 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, November is the cheapest month in which you can book a flight from San Diego to Portugal (average of $548). Flying from San Diego to Portugal in June is currently the most expensive (average of $749). 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 November 6, 2025.

It’s typically best to fly out from San Diego to Portugal in the evening. Doing so could potentially save you 19% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from San Diego to Portugal?

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

Travelers seeking maximum savings on their San Diego to Portugal flight should consider departing on Saturday at noon 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.

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 November 6, 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
7.9
Good
8,001 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

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
7.9
Good
8,001 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

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.
United Airlines
7.4
Good
9,003 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

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.
American Airlines
7.2
Good
11,040 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

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 Canada
7.1
Good
10,410 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

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.
British Airways
6.7
Okay
7,499 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

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.

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

    Airlines like Lufthansa, Delta, and British Airways fly from San Diego to Portugal in about 15h 40m. The time it takes to get you to your destination can typically vary by up to 6h 25m. San Diego and Portugal are separated by a distance of 5677 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 TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $563. Lufthansa flights start at $583 while deals on United Airlines start at $739 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 - Ponta Delgada Nordela 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, November is the cheapest month in which you can book a flight from San Diego to Portugal (average of $548). Flying from San Diego to Portugal in June is currently the most expensive (average of $749). 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$557Average$859FlexibilityNo cancel feeOn-time76%
IberiaCheapest$565Average$882FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$565Average$675FlexibilityNo cancel feeOn-time72%
DeltaCheapest$586Average$831FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$598Average$1,166FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$605Average$1,050FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$621Average$1,215FlexibilityNo cancel feeOn-time71%
KLMCheapest$626Average$750FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$638Average$972FlexibilityNo cancel feeOn-time67%

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