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$465+ Cheap flights from Portugal 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SAN
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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Find flight deals from Portugal to San Diego

Cheapest flights from Portugal to San Diego
Explore the most affordable flight options available from Portugal to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This lol.travel deal was found by Cheapflights users on 10/21. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:00 amLIS - SAN
1 stop17h 10mBritish Airways
Mon 11/246:00 pmSAN - LIS
1 stop19h 55mBritish Airways
Deal found 10/21$853
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Sat 12/611:40 amLIS - SAN
1 stop16h 30mMultiple Airlines
Sat 12/139:15 amSAN - LIS
1 stop16h 40mMultiple Airlines
Deal found 10/22$869
This Delta deal was found by Cheapflights users on 10/22. 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 11/85:00 amLIS - SAN
2 stops24h 20mDelta
Mon 11/246:24 amSAN - LIS
2 stops20h 56mDelta
Deal found 10/22$872
This Delta deal was found by Cheapflights users on 10/22. 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 11/155:00 amLIS - SAN
2 stops24h 19mDelta
Wed 11/196:30 amSAN - LIS
2 stops20h 05mDelta
Deal found 10/22$877
This Delta deal was found by Cheapflights users on 10/22. 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 11/145:30 amLIS - SAN
2 stops24h 50mDelta
Wed 11/196:30 amSAN - LIS
2 stops20h 05mDelta
Deal found 10/22$883
This British Airways deal was found by Cheapflights users on 10/22. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:40 pmLIS - SAN
1 stop29h 25mBritish Airways
Sat 12/1312:43 pmSAN - LIS
2 stops18h 07mBritish Airways
Deal found 10/22$886
This KLM deal was found by Cheapflights users on 10/22. 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 12/65:00 amLIS - SAN
2 stops19h 20mKLM
Sat 12/137:20 amSAN - LIS
2 stops18h 10mKLM
Deal found 10/22$888

Cheap flight deals from Portugal to San Diego

Keep the following information in mind while searching for Portugal to San Diego flight deals. Data was last updated October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$853
(lol.travel)

One-way from

$465
(Kiwi.com)

Popular in

July

Cheapest in

December

Average price

$918
Provider with most accurate pricing for Lisbon Humberto Delgado-San Diego flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-San Diego flights.
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From Portugal to San Diego
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One-way flight from Portugal to San Diego
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal 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 October 23, 2025.
Use the filters below to find and compare flights from Portugal to San Diego that are best for you.

Fly from

Portugal

Fly to

San Diego

Route

Depart

Return

Price

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sat 11/8

7:00 am-4:10 pm

1 stop17h 10m

San Diego

Mon 11/24

6:00 pm-9:55 pm

1 stop19h 55m

$853

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sat 12/6

11:40 am-8:10 pm

1 stop16h 30m

San Diego

Sat 12/13

9:15 am-9:55 am

1 stop16h 40m

$869

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sat 11/8

5:00 am-9:20 pm

2 stops24h 20m

San Diego

Mon 11/24

6:24 am-11:20 am

2 stops20h 56m

$872

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 11/5

5:00 am-9:20 pm

2 stops24h 20m

San Diego

Sun 11/9

9:43 am-5:30 pm

2 stops23h 47m

$874

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sat 11/15

5:00 am-9:19 pm

2 stops24h 19m

San Diego

Wed 11/19

6:30 am-10:35 am

2 stops20h 05m

$877

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Fri 2/20

11:05 am-9:43 pm

1 stop18h 38m

San Diego

Tue 2/24

6:00 pm-9:45 pm

1 stop19h 45m

$879

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Thu 11/20

3:20 pm-3:27 pm

3 stops56h 07m

$465

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 11/19

5:55 am-10:48 am

2 stops36h 53m

$494

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Tue 11/18

9:05 pm-11:59 pm

3 stops58h 54m

$504

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Tue 11/4

5:10 pm-9:39 pm

3 stops36h 29m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/23

Showing 1-10 of 15 results
1
2

Best time to book a flight from Portugal to San Diego

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

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

Currently, December is the cheapest month in which you can book a flight from Portugal to San Diego (average of $662). Flying from Portugal to San Diego in July is currently the most expensive (average of $985). 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 PT to SAN?

Find hourly flight availability from Portugal to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 23, 2025.

One of the essential ways to save on airfare from Portugal to San Diego is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 33% on airfare.

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 October 23, 2025.
Read through reviews of airlines operating flights from Portugal to San Diego, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,995 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

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
8,995 reviews
United Airlines
7.4
Good
8,995 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

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 Portugal to San Diego. 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 into for flights to San Diego from Portugal?

    If you book a flight to San Diego from Portugal, you will be flying to 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 Portugal to San Diego?

    A quick flight from Portugal to San Diego can take about 17h 10m. British Airways provides one of the quickest options available for as low as $853. The distance between Portugal and San Diego is about 5677 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Portugal to San Diego (average of $662). Flying from Portugal to San Diego in July is currently the most expensive (average of $985). 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
Coronado
La Mesa
Poway
Lemon Grove
Imperial Beach
National City

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Top airline flying from Portugal to San Diego

Discover the top airline that operate flights from Portugal 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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$746Average$918FlexibilityNo cancel feeOn-time69%

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