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Portugal

$336+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LIS
dic. 18 — dic. 251
jue. 12/18
jue. 12/25
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 noviembre 18, 2025.

This Finnair deal was found by Cheapflights users on 11/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/126:30 amSAN - LIS
1 stop18h 20mMultiple Airlines
vie. 12/1911:05 amLIS - SAN
1 stop15h 48mMultiple Airlines
Deal found 11/16$671
This Delta deal was found by Cheapflights users on 11/16. 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.
mié. 12/36:15 amSAN - OPO
2 stops20h 15mDelta
dom. 12/75:00 amOPO - SAN
2 stops23h 42mDelta
Deal found 11/16$692
This United Airlines deal was found by Cheapflights users on 11/17. 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.
mar. 12/28:00 pmSAN - LIS
3 stops28h 10mUnited Airlines
mar. 12/912:20 pmLIS - SAN
2 stops19h 55mUnited Airlines
Deal found 11/17$697
This KLM deal was found by Cheapflights users on 11/17. 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.
vie. 12/59:59 amSAN - FAO
2 stops22h 56mKLM
mar. 12/97:45 pmFAO - SAN
2 stops31h 32mKLM
Deal found 11/17$708
This United Airlines deal was found by Cheapflights users on 11/17. 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.
lun. 12/157:00 amSAN - LIS
2 stops19h 15mUnited Airlines
lun. 12/2211:55 amLIS - SAN
2 stops31h 10mUnited Airlines
Deal found 11/17$731
This Mytrip deal was found by Cheapflights users on 11/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/25:35 pmSAN - LIS
3 stops30h 20mMultiple Airlines
mar. 12/98:05 pmLIS - SAN
2 stops27h 40mMultiple Airlines
Deal found 11/16$757
This Lufthansa deal was found by Cheapflights users on 11/16. 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.
mié. 12/35:35 pmSAN - OPO
1 stop35h 15mLufthansa
dom. 12/76:15 amOPO - SAN
1 stop17h 30mLufthansa
Deal found 11/16$769
This Cheapflightsfares deal was found by Cheapflights users on 11/17. 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.
mié. 12/104:08 pmSAN - OPO
2 stops18h 27mSWISS
mié. 12/177:20 pmOPO - SAN
2 stops35h 31mSWISS
Deal found 11/17$773
This United Airlines deal was found by Cheapflights users on 11/16. 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.
vie. 12/126:30 amSAN - LIS
2 stops19h 45mUnited Airlines
lun. 12/2211:55 amLIS - SAN
2 stops29h 49mUnited Airlines
Deal found 11/16$785
This Ovago deal was found by Cheapflights users on 11/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/105:35 pmSAN - OPO
1 stop22h 05mMultiple Airlines
mié. 12/177:20 pmOPO - SAN
2 stops35h 31mMultiple Airlines
Deal found 11/17$799
This Booking.com deal was found by Cheapflights users on 11/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/156:30 amSAN - LIS
1 stop18h 35mBritish Airways
lun. 12/226:35 pmLIS - SAN
2 stops33h 33mBritish Airways
Deal found 11/17$804
This Finnair deal was found by Cheapflights users on 11/17. 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.
lun. 12/159:23 amSAN - LIS
1 stop15h 42mMultiple Airlines
lun. 12/2211:05 amLIS - SAN
1 stop15h 48mMultiple Airlines
Deal found 11/17$837

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 noviembre 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$485
(CheapOair)

One-way from

$336
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$661
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. 6% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($57 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 noviembre 18, 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

vie. 2/6

7:05 am-10:30 am

2 stops19h 25m

Porto

mar. 2/10

6:05 am-11:48 pm

2 stops49h 43m

$492

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

dom. 2/15

10:37 am-3:10 pm

2 stops20h 33m

Lisbon Humberto Delgado

dom. 3/8

5:30 am-9:55 pm

2 stops24h 25m

$506

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

sáb. 1/10

1:45 pm-8:00 am

1 stop34h 15m

Lisbon Humberto Delgado

lun. 2/9

10:00 am-12:05 am

1 stop22h 05m

$542

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mar. 4/7

7:00 pm-9:20 am

2 stops30h 20m

Lisbon Humberto Delgado

mié. 4/22

11:25 am-1:08 pm

2 stops33h 43m

$549

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

vie. 1/9

6:00 pm-10:25 pm

1 stop20h 25m

Lisbon Humberto Delgado

vie. 2/6

7:05 am-4:10 pm

1 stop17h 05m

$557

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

vie. 1/9

6:00 pm-2:50 pm

1 stop36h 50m

Lisbon Humberto Delgado

mié. 2/4

10:40 am-4:10 pm

1 stop37h 30m

$557

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mié. 4/15

12:45 pm-9:20 am

2 stops36h 35m

Lisbon Humberto Delgado

mié. 4/29

6:15 am-3:25 pm

1 stop17h 10m

$561

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mié. 4/8

10:00 am-2:35 pm

2 stops20h 35m

Lisbon Humberto Delgado

mié. 4/22

5:40 am-4:15 pm

1 stop18h 35m

$562

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mié. 4/15

10:25 pm-9:20 am

2 stops26h 55m

Lisbon Humberto Delgado

mié. 4/29

11:25 am-1:41 pm

2 stops34h 16m

$563

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mié. 4/1

1:35 pm-6:40 pm

2 stops21h 05m

Lisbon Humberto Delgado

mar. 4/7

5:00 am-6:03 pm

2 stops21h 03m

$565

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

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, November is the cheapest month in which you can book a flight from San Diego to Portugal (average of $465). 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 noviembre 18, 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 noviembre 18, 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
8,007 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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
9,016 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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
11,048 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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
10,459 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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
7,528 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Entertainment

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 Delta, United Airlines, and British Airways fly from San Diego to Portugal in about 19h 25m. The time it takes to get you to your destination can typically vary by up to 10h 55m. 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 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, November is the cheapest month in which you can book a flight from San Diego to Portugal (average of $465). 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 noviembre 18, 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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