HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$225+ 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LIS
feb. 7 — feb. 141
sáb. 2/7
sáb. 2/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Portugal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 enero 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$448
(AirNGo)

One-way from

$225
(Travelocity)

Popular in

June

Cheapest in

February

Average price

$655
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. 21% potential increase in price ($225 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/109:55 amSAN - LIS
2 stops29h 35mLufthansa
jue. 2/192:10 pmLIS - SAN
1 stop33h 35mLufthansa
Deal found 1/8$427
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 1/145:35 pmSAN - LIS
1 stop18h 20mLufthansa
mié. 1/215:00 amLIS - SAN
2 stops20h 28mLufthansa
Deal found 1/7$430
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/237:00 amSAN - LIS
1 stop18h 00mKLM
mar. 3/1010:00 amLIS - SAN
1 stop17h 48mKLM
Deal found 1/8$446
This AirNGo deal was found by Cheapflights users on 1/8. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/2310:00 pmSAN - LIS
1 stop27h 00mVirgin Atlantic
mar. 3/1010:00 amLIS - SAN
2 stops20h 14mVirgin Atlantic
Deal found 1/8$447
This Iberia deal was found by Cheapflights users on 1/6. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/46:00 pmSAN - LIS
1 stop15h 40mMultiple Airlines
mié. 3/118:20 amLIS - SAN
2 stops19h 00mMultiple Airlines
Deal found 1/6$449
This Cheapflightsfares deal was found by Cheapflights users on 1/7. 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.
mar. 4/77:40 pmSAN - LIS
1 stop19h 20mBritish Airways
jue. 4/236:45 pmLIS - SAN
1 stop28h 10mBritish Airways
Deal found 1/7$451
This FlightHub deal was found by Cheapflights users on 1/7. 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.
lun. 4/2012:45 pmSAN - LIS
2 stops36h 35mMultiple Airlines
mié. 4/296:15 amLIS - SAN
1 stop17h 10mMultiple Airlines
Deal found 1/7$452
This Expedia deal was found by Cheapflights users on 1/8. 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.
mié. 1/284:00 pmSAN - LIS
2 stops17h 40mMultiple Airlines
vie. 2/68:20 amLIS - SAN
2 stops22h 30mMultiple Airlines
Deal found 1/8$453
This oojo deal was found by Cheapflights users on 1/7. 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.
mar. 4/79:28 amSAN - LIS
2 stops29h 32mBritish Airways
mié. 4/226:40 pmLIS - SAN
1 stop28h 15mBritish Airways
Deal found 1/7$455
This Iberia deal was found by Cheapflights users on 1/7. 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.
mar. 1/277:10 amSAN - OPO
2 stops20h 35mIberia
mié. 2/412:25 pmOPO - SAN
2 stops28h 07mIberia
Deal found 1/7$461
This FlightHub deal was found by Cheapflights users on 1/7. 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.
dom. 4/195:15 pmSAN - OPO
1 stop22h 10mLufthansa
mié. 4/296:20 amOPO - SAN
1 stop17h 05mLufthansa
Deal found 1/7$462
This KAYAK deal was found by Cheapflights users on 1/7. 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.
dom. 4/195:15 pmSAN - OPO
1 stop22h 10mLufthansa
mar. 4/286:20 amOPO - SAN
1 stop17h 05mLufthansa
Deal found 1/7$464

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 enero 8, 2026.
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

mar. 2/10

9:55 am-11:30 pm

2 stops29h 35m

Lisbon Humberto Delgado

jue. 2/19

2:10 pm-3:45 pm

1 stop33h 35m

$427

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mié. 1/28

4:00 pm-5:40 pm

2 stops17h 40m

Lisbon Humberto Delgado

vie. 2/6

8:20 am-10:50 pm

2 stops22h 30m

$453

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mié. 1/28

12:46 pm-9:50 pm

2 stops25h 04m

Lisbon Humberto Delgado

vie. 2/6

7:05 am-4:10 pm

1 stop17h 05m

$455

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mar. 2/10

6:00 pm-9:45 pm

1 stop19h 45m

Lisbon Humberto Delgado

jue. 2/19

7:00 am-4:10 pm

1 stop17h 10m

$458

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

dom. 3/1

7:00 am-8:55 am

1 stop17h 55m

Lisbon Humberto Delgado

lun. 3/9

11:25 am-1:05 pm

1 stop32h 40m

$460

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mié. 4/22

7:40 pm-11:15 pm

1 stop19h 35m

Lisbon Humberto Delgado

jue. 4/30

6:45 pm-5:50 pm

1 stop31h 05m

$460

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mar. 3/10

7:00 pm-9:55 am

1 stop31h 55m

Lisbon Humberto Delgado

lun. 3/23

3:45 pm-5:10 pm

1 stop32h 25m

$461

San DiegoPorto

SAN - OPO

SANOPO

San Diego

dom. 4/19

5:15 pm-11:25 pm

1 stop22h 10m

Porto

mié. 4/29

6:20 am-3:25 pm

1 stop17h 05m

$462

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mar. 4/21

3:07 pm-11:00 pm

2 stops23h 53m

Lisbon Humberto Delgado

mar. 4/28

4:30 pm-5:50 pm

1 stop33h 20m

$465

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mié. 4/22

4:41 pm-11:15 pm

2 stops22h 34m

Lisbon Humberto Delgado

mié. 4/29

6:45 pm-2:55 pm

1 stop28h 10m

$465

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 54 results
1
2
3
...
6

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, February is the cheapest month in which you can book a flight from San Diego to Portugal (average of $451). Flying from San Diego to Portugal in June is currently the most expensive (average of $722). 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.

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 enero 8, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and Air Canada 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
8,031 reviews

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

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
8,031 reviews
Delta
7.9
Good
8,031 reviews

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

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
9,142 reviews
Delta
7.9
Good
8,031 reviews

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

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
10,603 reviews
Delta
7.9
Good
8,031 reviews

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

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.
Lufthansa
6.8
Okay
7,697 reviews
Delta
7.9
Good
8,031 reviews

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

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
7,659 reviews
Delta
7.9
Good
8,031 reviews

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

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, British Airways, and Delta fly from San Diego to Portugal in about 22h 50m. The time it takes to get you to your destination can typically vary by up to 6h 45m. 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 Air Canada, which is currently one of the cheapest options available, starting at $359. United Airlines flights start at $408 while deals on British Airways start at $411 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, February is the cheapest month in which you can book a flight from San Diego to Portugal (average of $451). Flying from San Diego to Portugal in June is currently the most expensive (average of $722). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to Charles de Gaulle flights
San Francisco to Charles de Gaulle flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
San Francisco to Leonardo da Vinci/Fiumicino flights
Los Angeles to Istanbul flights
Los Angeles to Orly flights
San Francisco to Barcelona-El Prat flights
Los Angeles to Madrid flights
Los Angeles to Gatwick flights
Los Angeles to Barcelona-El Prat flights
San Francisco to Lisbon flights
San Francisco to Gatwick flights
Los Angeles to London City flights
Los Angeles to Frankfurt flights
Los Angeles to Dublin flights
Los Angeles to Lisbon flights
San Francisco to London City flights
Los Angeles to Amsterdam flights
Los Angeles to Stansted flights
San Diego to Heathrow flights
San Francisco to Istanbul flights
San Francisco to Orly flights
San Francisco to Stansted flights
San Francisco to Amsterdam flights
San Francisco to Dublin flights
San Francisco to Frankfurt flights
Ontario to Charles de Gaulle flights
San Francisco to Madrid flights
Los Angeles to Athens flights
Santa Ana to Charles de Gaulle flights
San Francisco to Zurich flights
Ontario to Heathrow flights
Ontario to Leonardo da Vinci/Fiumicino flights
Las Vegas to Heathrow flights
San Francisco to Athens flights
Burbank to Charles de Gaulle flights
Los Angeles to Zurich flights
Los Angeles to Malpensa flights
San Francisco to Malpensa flights
Santa Ana to Leonardo da Vinci/Fiumicino flights
Los Angeles to Sabiha Gokcen flights
San Jose to Charles de Gaulle flights
Los Angeles to Copenhagen flights
San Francisco to Linate flights
Los Angeles to Keflavik Intl flights
San Francisco to Munich flights
San Francisco to Copenhagen flights
San Francisco to Keflavik Intl flights

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 enero 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$490Average$750FlexibilityNo cancel feeOn-time75%
IberiaCheapest$506Average$913FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$549Average$821FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$555Average$1,106FlexibilityNo cancel feeOn-time71%
Virgin AtlanticCheapest$565Average$675FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$568Average$973FlexibilityNo cancel feeOn-time70%
DeltaCheapest$586Average$794FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$587Average$1,056FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$601Average$971FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.