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$409+ Cheap flights from Lisbon (LIS) to San Diego (SAN)

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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SAN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Lisbon to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Lisbon (LIS) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$745
(Delta)

One-way from

$409
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$956
From Lisbon Humberto Delgado to San Diego
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One-way flight from Lisbon Humberto Delgado to San Diego
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Highest demand for flights based on searches. 7% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Lisbon to San Diego

Cheapest flights from Lisbon to San Diego
Explore the most affordable flight options available from Lisbon to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This AirNGo deal was found by Cheapflights users on 9/15. 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 9/227:30 pmLIS - SAN
1 stop24h 30mKLM
Tue 10/77:10 amSAN - LIS
1 stop16h 50mKLM
Deal found 9/15$727
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 10/15:00 amLIS - SAN
2 stops21h 00mDelta
Tue 10/71:40 pmSAN - LIS
2 stops20h 10mDelta
Deal found 9/16$745
This Delta deal was found by Cheapflights users on 9/16. 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.
Fri 10/315:00 amLIS - SAN
2 stops22h 44mDelta
Fri 11/711:44 amSAN - LIS
2 stops19h 26mDelta
Deal found 9/16$746
This Delta deal was found by Cheapflights users on 9/15. 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 9/225:40 amLIS - SAN
2 stops22h 53mDelta
Tue 10/71:20 pmSAN - LIS
2 stops20h 30mDelta
Deal found 9/15$750
This Delta deal was found by Cheapflights users on 9/16. 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.
Mon 10/69:50 amLIS - SAN
2 stops21h 24mDelta
Mon 10/206:15 amSAN - LIS
2 stops21h 00mDelta
Deal found 9/16$751
This Delta deal was found by Cheapflights users on 9/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:30 amLIS - SAN
2 stops20h 38mDelta
Sat 11/811:00 amSAN - LIS
2 stops22h 30mDelta
Deal found 9/17$756
This KLM deal was found by Cheapflights users on 9/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1310:00 amLIS - SAN
1 stop18h 46mMultiple Airlines
Sat 1/2412:45 pmSAN - LIS
1 stop35h 15mMultiple Airlines
Deal found 9/16$761

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lisbon to San Diego 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 September 17, 2025.
Use the filters below to find and compare flights from Lisbon to San Diego that are best for you.

Fly from

Lisbon

Fly to

San Diego

Route

Depart

Return

Price

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 10/1

5:00 am-6:00 pm

2 stops21h 00m

San Diego

Tue 10/7

1:40 pm-5:50 pm

2 stops20h 10m

$745

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sun 1/25

7:00 pm-10:55 pm

2 stops35h 55m

San Diego

Wed 1/28

10:00 am-9:35 pm

2 stops27h 35m

$745

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Fri 10/31

5:00 am-8:44 pm

2 stops22h 44m

San Diego

Fri 11/7

11:44 am-3:10 pm

2 stops19h 26m

$746

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sat 12/13

5:00 am-8:41 pm

2 stops23h 41m

San Diego

Sat 1/24

7:00 am-8:00 am

1 stop17h 00m

$749

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Mon 10/6

9:50 am-11:14 pm

2 stops21h 24m

San Diego

Mon 10/20

6:15 am-11:15 am

2 stops21h 00m

$751

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Fri 2/20

11:05 am-6:32 pm

1 stop15h 27m

San Diego

Tue 2/24

6:00 pm-5:40 pm

1 stop15h 40m

$754

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 11/26

5:55 am-7:54 am

3 stops33h 59m

$446

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Thu 11/20

9:05 am-8:30 am

3 stops31h 25m

$454

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Tue 10/28

10:30 am-7:48 pm

3 stops40h 18m

$516

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 1/7

4:00 pm-12:38 pm

3 stops52h 38m

$525

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 15 results
1
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Best time to book a flight from Lisbon to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Lisbon 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 Lisbon to San Diego

What is the cheapest month to book a flight from Lisbon to San Diego?

Currently, August is the cheapest month in which you can book a flight from Lisbon to San Diego (average of $286). Flying from Lisbon to San Diego in March is currently the most expensive (average of $366). 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 San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated September 17, 2025.
Peruse reviews from past customers who have flown with United Airlines and British Airways from Lisbon to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
British Airways
6.7
Okay
7,367 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Lisbon to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Departing from Lisbon to San Diego will take you 21h. Lisbon and San Diego 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 flying from Lisbon to San Diego round-trip?

    Flying on British Airways is currently your cheapest option to San Diego, with prices starting at $710. Another option worth looking into is United Airlines, starting at $746 round trip. You may be able to fly from Lisbon to San Diego for 22% less than the average price by searching for these airlines.

  • Can I find deals for flights from Lisbon to San Diego that include hotel bookings?

    Yes. In addition to deals on Lisbon to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Lisbon to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lisbon to San Diego.

  • Can I find deals for business class flights from Lisbon to San Diego?

    Yes. Cheapflights offers flight deals from Lisbon to San Diego 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 Lisbon to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Lisbon to San Diego (average of $286). Flying from Lisbon to San Diego in March is currently the most expensive (average of $366). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Lisbon to San Diego

Discover the top 2 airlines that operate flights from Lisbon to San Diego. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$710Average$827FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$746Average$820FlexibilityNo cancel feeOn-time69%

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