Portugal

$319+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LIS
Mar 11 — Mar 181
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Cheap 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 February 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/411:57 am
SAN
-
LIS
2 stops27h 33m
Lufthansa
Thu 3/126:10 am
LIS
-
SAN
1 stop17h 35m
Lufthansa
Deal found 2/6$432
This Kiwi.com deal was found by Cheapflights users on 2/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:57 am
SAN
-
LIS
2 stops27h 33m
Lufthansa
Thu 3/126:10 am
LIS
-
SAN
1 stop17h 35m
Lufthansa
Deal found 2/5$434
This Kiwi.com deal was found by Cheapflights users on 2/8. 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.
Mon 2/96:00 pm
SAN
-
LIS
2 stops21h 30m
Lufthansa
Wed 2/256:10 am
LIS
-
SAN
1 stop17h 35m
Lufthansa
Deal found 2/8$435
This Kiwi.com deal was found by Cheapflights users on 2/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:35 pm
SAN
-
LIS
1 stop21h 55m
Lufthansa
Thu 3/196:10 am
LIS
-
SAN
1 stop17h 35m
Lufthansa
Deal found 2/5$449
This AirNGo deal was found by Cheapflights users on 2/7. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/97:05 am
SAN
-
LIS
1 stop16h 55m
Virgin Atlantic
Wed 2/2511:15 am
LIS
-
SAN
2 stops19h 49m
Virgin Atlantic
Deal found 2/7$460
This Billigflug deal was found by Cheapflights users on 2/7. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/97:00 am
SAN
-
LIS
2 stops17h 10m
Multiple Airlines
Wed 2/255:00 am
LIS
-
SAN
2 stops23h 51m
Multiple Airlines
Deal found 2/7$467
This Mytrip deal was found by Cheapflights users on 2/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:50 am
SAN
-
LIS
2 stops37h 30m
Multiple Airlines
Wed 11/256:10 am
LIS
-
SAN
1 stop17h 35m
Multiple Airlines
Deal found 2/6$475
This Gotogate deal was found by Cheapflights users on 2/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:00 pm
SAN
-
LIS
2 stops56h 20m
Multiple Airlines
Wed 12/22:10 pm
LIS
-
SAN
1 stop33h 35m
Multiple Airlines
Deal found 2/6$478
This United Airlines deal was found by Cheapflights users on 2/5. 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 2/238:30 am
SAN
-
LIS
1 stop17h 45m
United Airlines
Tue 3/106:10 am
LIS
-
SAN
1 stop17h 35m
United Airlines
Deal found 2/5$483
This Delta deal was found by Cheapflights users on 2/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2310:20 pm
SAN
-
LIS
2 stops25h 40m
Delta
Tue 3/105:00 am
LIS
-
SAN
1 stop15h 05m
Delta
Deal found 2/5$484
This KLM deal was found by Cheapflights users on 2/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/103:00 pm
SAN
-
OPO
1 stop17h 25m
KLM
Tue 3/245:00 am
OPO
-
SAN
1 stop15h 05m
KLM
Deal found 2/6$486
This KAYAK deal was found by Cheapflights users on 2/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:01 am
SAN
-
OPO
2 stops28h 24m
Lufthansa
Wed 4/156:20 am
OPO
-
SAN
1 stop17h 05m
Lufthansa
Deal found 2/8$487

Find 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 February 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$432
(Kiwi.com)

One-way from

$319
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$625
Provider with most accurate pricing for San Diego-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for San Diego-Lisbon Humberto Delgado flights.
From San Diego to Portugal
One-way flight from San Diego to Portugal
Highest demand for flights based on searches. 20% potential increase in price ($207 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 February 9, 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

Mon 3/2

7:00 am-9:00 am

1 stop18h 00m

Lisbon Humberto Delgado

Mon 3/9

3:30 pm-1:05 pm

1 stop28h 35m

$488

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 3/17

7:00 am-10:15 am

2 stops20h 15m

Lisbon Humberto Delgado

Tue 4/21

11:25 am-5:12 pm

2 stops37h 47m

$492

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 2/17

6:25 am-3:10 pm

2 stops24h 45m

Lisbon Humberto Delgado

Tue 3/3

5:00 am-12:05 pm

1 stop15h 05m

$493

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 3/17

3:00 pm-6:50 pm

1 stop20h 50m

Lisbon Humberto Delgado

Tue 3/24

5:00 am-1:05 pm

1 stop15h 05m

$494

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 3/3

6:30 am-8:10 am

2 stops17h 40m

Lisbon Humberto Delgado

Fri 3/13

5:00 am-12:14 am

2 stops26h 14m

$496

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 2/23

10:00 pm-9:00 am

1 stop27h 00m

Lisbon Humberto Delgado

Mon 3/2

11:25 am-12:05 pm

1 stop32h 40m

$499

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 4/7

11:00 am-11:25 pm

2 stops28h 25m

Porto

Fri 4/17

6:00 am-6:53 pm

2 stops44h 53m

$501

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 2/18

7:00 am-11:20 am

2 stops20h 20m

Lisbon Humberto Delgado

Tue 3/3

5:00 am-5:50 pm

2 stops20h 50m

$503

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 3/24

4:00 pm-11:30 pm

2 stops24h 30m

Lisbon Humberto Delgado

Tue 3/31

5:05 am-10:20 am

2 stops37h 15m

$504

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 3/4

7:00 am-10:35 am

2 stops19h 35m

Lisbon Humberto Delgado

Thu 3/12

5:00 am-6:19 pm

2 stops20h 19m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 55 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, 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 $714). 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 February 9, 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.

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

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.

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

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.

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

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.

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

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.

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

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.

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

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 KLM, United Airlines, and Delta fly from San Diego to Portugal in about 18h. 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 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 KLM, which is currently one of the cheapest options available, starting at $245. Air Canada flights start at $359 while deals on United Airlines start at $408 one-way.

  • What are the most popular routes from San Diego to Portugal?

  • 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 $714). 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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Alternative routes for San Diego to Portugal

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from San Diego to Portugal

Discover the top 8 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 February 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$489Average$892FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$490Average$750FlexibilityNo cancel feeOn-time75%
IberiaCheapest$506Average$913FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$528Average$945FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$534Average$797FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$555Average$1,140FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$577Average$1,021FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$590Average$971FlexibilityNo cancel feeOn-time67%

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