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 $839. Additional round-trip tickets that might be worth considering are offered by American Airlines and Iberia, with the lowest prices starting at $842 and $852, respectively. You may be able to fly from Lisbon to San Diego for 10% less than the average price by searching for these airlines.

What is the cheapest day to fly from Lisbon to San Diego?

Travelers seeking maximum savings on their Lisbon to San Diego flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

What is the cheapest day to fly round-trip from Lisbon to San Diego?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 20% on the overall cost on flights from Lisbon to San Diego.

How far in advance should I book a flight from Lisbon to San Diego?

Travelers have found it’s best to book a flight 52 days in advance to save up to 29% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 52 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Lisbon to San Diego 1-2 weeks in advance for as low as $858, or $994 for flights within the next 24 hours.

What is the cheapest month to fly from Lisbon to San Diego?

November can be a great time to fly to San Diego from Lisbon with a flight ticket averaging about $940. Cheapflights users have found deals in the month of November for as cheap as $770. The most expensive prices can be found in the month of July.

What is the cheapest time of day to fly from LIS to SAN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Lisbon to San Diego as you normally would.

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.

$406+ Flights from Lisbon to San Diego

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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Lisbon Humberto Delgado to San Diego are usually found in November or December, booked 51 days in advance, depart on a Saturday or Tuesday and return on a Wednesday

Cheap flight deals from Lisbon to San Diego

Round-trip from	$839 (Booking.com)
One-way from	$406 (Kiwi.com)
Popular in	July
Cheapest in	November
Average price	$1,171

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. 11% potential increase in price ($118 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 3, 2025.

Mon 8/2511:05 amLIS - SAN

1 stop15h 27mBritish Airways

Sun 9/77:50 pmSAN - LIS

1 stop19h 15mBritish Airways

Deal found 7/1

$839

Fri 10/35:55 pmLIS - SAN

1 stop33h 38mMultiple Airlines

Sun 10/128:20 amSAN - LIS

1 stop18h 30mMultiple Airlines

Deal found 7/1

$840

Mon 8/2511:05 amLIS - SAN

2 stops18h 49mAmerican Airlines

Sun 9/77:50 pmSAN - LIS

1 stop19h 15mAmerican Airlines

Deal found 7/1

$842

Wed 9/311:05 amLIS - SAN

1 stop18h 38mIberia

Mon 9/226:15 amSAN - LIS

1 stop18h 50mIberia

Deal found 7/1

$852

Wed 9/34:30 pmLIS - SAN

2 stops33h 33mFinnair

Mon 9/2210:42 amSAN - LIS

2 stops28h 28mFinnair

Deal found 7/1

$867

Wed 9/311:25 amLIS - SAN

2 stops33h 30mUnited Airlines

Mon 9/228:11 pmSAN - LIS

2 stops29h 09mUnited Airlines

Deal found 7/2

$872

Mon 8/255:00 amLIS - SAN

2 stops23h 44mDelta

Sun 9/76:15 amSAN - LIS

2 stops21h 00mDelta

Deal found 7/1

$892

Thu 7/247:40 amLIS - SAN

2 stops24h 02mAir Europa

Thu 8/146:30 amSAN - LIS

2 stops24h 45mAir Europa

Deal found 7/1

$1,252

Thu 7/245:00 amLIS - SAN

1 stop15h 00mKLM

Thu 8/141:55 pmSAN - LIS

1 stop16h 40mKLM

Deal found 7/1

$1,254

Best flights from Lisbon to San Diego
Discover carefully curated flight deals from Lisbon to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Mon 8/2511:05 amLIS - SAN

1 stop15h 27mBritish Airways

Sun 9/77:50 pmSAN - LIS

1 stop19h 15mBritish Airways

Deal found 7/1

$839

Fri 10/35:55 pmLIS - SAN

1 stop33h 38mMultiple Airlines

Sun 10/128:20 amSAN - LIS

1 stop18h 30mMultiple Airlines

Deal found 7/1

$840

Mon 8/2511:05 amLIS - SAN

2 stops18h 49mAmerican Airlines

Sun 9/77:50 pmSAN - LIS

1 stop19h 15mAmerican Airlines

Deal found 7/1

$842

Wed 9/311:05 amLIS - SAN

1 stop18h 38mIberia

Mon 9/226:15 amSAN - LIS

1 stop18h 50mIberia

Deal found 7/1

$852

Wed 9/34:30 pmLIS - SAN

2 stops33h 33mFinnair

Mon 9/2210:42 amSAN - LIS

2 stops28h 28mFinnair

Deal found 7/1

$867

Wed 9/311:25 amLIS - SAN

2 stops33h 30mUnited Airlines

Mon 9/228:11 pmSAN - LIS

2 stops29h 09mUnited Airlines

Deal found 7/2

$872

Mon 8/255:00 amLIS - SAN

2 stops23h 44mDelta

Sun 9/76:15 amSAN - LIS

2 stops21h 00mDelta

Deal found 7/1

$892

Thu 7/247:40 amLIS - SAN

2 stops24h 02mAir Europa

Thu 8/146:30 amSAN - LIS

2 stops24h 45mAir Europa

Deal found 7/1

$1,252

Thu 7/245:00 amLIS - SAN

1 stop15h 00mKLM

Thu 8/141:55 pmSAN - LIS

1 stop16h 40mKLM

Deal found 7/1

$1,254

Last-minute flights from Lisbon to San Diego
Discover last-minute flight deals from Lisbon to San Diego. Data last updated July 3, 2025 and is based on user searches.

Thu 7/247:40 amLIS - SAN

2 stops24h 02mAir Europa

Thu 8/146:30 amSAN - LIS

2 stops24h 45mAir Europa

Deal found 7/1

$1,252

Thu 7/245:00 amLIS - SAN

1 stop15h 00mKLM

Thu 8/141:55 pmSAN - LIS

1 stop16h 40mKLM

Deal found 7/1

$1,254

Mon 8/2511:05 amLIS - SAN

1 stop15h 27mBritish Airways

Sun 9/77:50 pmSAN - LIS

1 stop19h 15mBritish Airways

Deal found 7/1

$839

Mon 8/2511:05 amLIS - SAN

2 stops18h 49mAmerican Airlines

Sun 9/77:50 pmSAN - LIS

1 stop19h 15mAmerican Airlines

Deal found 7/1

$842

Mon 8/2511:05 amLIS - SAN

1 stop18h 11mIberia

Sun 9/76:15 amSAN - LIS

1 stop18h 50mIberia

Deal found 7/1

$854

Mon 8/254:30 pmLIS - SAN

2 stops33h 44mFinnair

Sun 9/710:17 amSAN - LIS

2 stops29h 08mFinnair

Deal found 7/1

$883

Mon 8/254:30 pmLIS - SAN

3 stops30h 55mMultiple Airlines

Mon 9/810:54 amSAN - LIS

3 stops27h 16mMultiple Airlines

Deal found 7/2

$891

Mon 8/255:00 amLIS - SAN

2 stops23h 44mDelta

Sun 9/76:15 amSAN - LIS

2 stops21h 00mDelta

Deal found 7/1

$892

Mon 8/2510:25 amLIS - SAN

2 stops18h 00mUnited Airlines

Sun 9/76:50 amSAN - LIS

1 stop17h 30mUnited Airlines

Deal found 7/1

$989

One-way flights from Lisbon to San Diego
Search for one-way flight options from Lisbon to San Diego. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Wed 11/124:00 pmLIS - SAN

2 stops52h 45mMultiple Airlines

Deal found 7/2

$406

Cheapflights Fare Finder

Use the filters below to find and compare flights from Lisbon to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Mon 8/25

11:05 am-6:32 pm

1 stop15h 27m

San Diego

Sun 9/7

7:50 pm-11:05 pm

1 stop19h 15m

$839

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Fri 10/3

5:55 pm-7:33 pm

1 stop33h 38m

San Diego

Sun 10/12

8:20 am-10:50 am

1 stop18h 30m

$840

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Mon 8/25

11:05 am-9:54 pm

2 stops18h 49m

San Diego

Sun 9/7

7:50 pm-11:05 pm

1 stop19h 15m

$842

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 9/3

11:05 am-9:43 pm

1 stop18h 38m

San Diego

Mon 9/22

6:15 am-9:05 am

1 stop18h 50m

$852

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 9/3

4:30 pm-6:03 pm

2 stops33h 33m

San Diego

Mon 9/22

10:42 am-11:10 pm

2 stops28h 28m

$867

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 9/3

11:25 am-12:55 pm

2 stops33h 30m

San Diego

Mon 9/22

8:11 pm-9:20 am

2 stops29h 09m

$872

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Mon 8/25

5:00 am-8:44 pm

2 stops23h 44m

San Diego

Sun 9/7

6:15 am-11:15 am

2 stops21h 00m

$892

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Thu 7/24

7:40 am-11:42 pm

2 stops24h 02m

San Diego

Thu 8/14

6:30 am-3:15 pm

2 stops24h 45m

$1,252

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Thu 7/24

5:00 am-12:00 pm

1 stop15h 00m

San Diego

Thu 8/14

1:55 pm-2:35 pm

1 stop16h 40m

$1,254

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 11/12

4:00 pm-12:45 pm

2 stops52h 45m

$406

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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

How far ahead should I book a flight from Lisbon to San Diego?

To ensure you get the cheapest price possible for a flight from Lisbon to San Diego, you should look to book at least 51 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Peruse reviews from past customers who have flown with Delta, KLM, and Finnair 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.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,367 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,306 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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 $839. Additional round-trip tickets that might be worth considering are offered by American Airlines and Iberia, with the lowest prices starting at $842 and $852, respectively. You may be able to fly from Lisbon to San Diego for 10% 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

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Other flights to San Diego

Top 2 airlines flying from Lisbon to San Diego

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$715	Average$829	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$746	Average$944	FlexibilityNo cancel fee	On-time69%

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$406+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Lisbon to San Diego with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Lisbon Humberto Delgado to San Diego are usually found in November or December, booked 51 days in advance, depart on a Saturday or Tuesday and return on a Wednesday

Cheap flight deals from Lisbon to San Diego

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Lisbon to San Diego

Cheapest flights from Lisbon to San DiegoExplore 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 July 3, 2025.

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 July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Lisbon to San Diego that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Lisbon to San Diego

How far ahead should I book a flight from Lisbon to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Lisbon to San Diego. Price data was last updated on June 27, 2025.

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

Reviews of airlines servicing San Diego

Peruse reviews from past customers who have flown with Delta, KLM, and Finnair 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.

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.

What are the cheapest airlines flying from Lisbon to San Diego round-trip?

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

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

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

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

Traveling to a place near Lisbon?

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Alternative routes for Lisbon to San Diego

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Top 2 airlines flying from Lisbon to San Diego

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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 July 3, 2025.