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$406+ Cheap flights from the United Kingdom 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
juin 17 — juin 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from United Kingdom to San Diego

Keep the following information in mind while searching for United Kingdom to San Diego flight deals. Data was last updated juin 12, 2025.

Round-trip from

$623
(TravelTrolley)

One-way from

$406
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$747

Good round-trip deal

$641 or less

Good one-way deal

$643 or less
From United Kingdom to San Diego
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One-way flight from United Kingdom to San Diego
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Highest demand for flights based on searches. 17% potential increase in price ($160 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from United Kingdom to San Diego.
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Price to beat on a one-way flight from United Kingdom to San Diego.
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Find flight deals from United Kingdom to San Diego

Cheapest flights from United Kingdom to San Diego
Explore the most affordable flight options available from United Kingdom to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juin 12, 2025.

This TravelTrolley deal was found by Cheapflights users on 6/12. 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 TravelTrolley is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/207:25 amLHR - SAN
1 stop16h 00mMultiple Airlines
sam. 10/48:10 amSAN - LHR
1 stop17h 25mMultiple Airlines
Deal found 6/12$623
This British Airways deal was found by Cheapflights users on 6/10. 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.
mer. 9/2411:30 amLHR - SAN
Nonstop11h 20mBritish Airways
mar. 9/304:40 pmSAN - LHR
Nonstop10h 45mBritish Airways
Deal found 6/10$624
This KLM deal was found by Cheapflights users on 6/11. 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.
mar. 8/266:30 amLHR - SAN
1 stop13h 30mKLM
mar. 9/91:22 pmSAN - LHR
1 stop15h 48mKLM
Deal found 6/11$625
This Netflights deal was found by Cheapflights users on 6/10. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 9/249:20 amLHR - SAN
1 stop16h 08mVirgin Atlantic
mer. 10/110:10 pmSAN - LHR
1 stop13h 50mVirgin Atlantic
Deal found 6/10$626
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 9/246:55 amLHR - SAN
1 stop16h 30mLufthansa
mer. 10/112:52 pmSAN - LHR
1 stop12h 48mLufthansa
Deal found 6/11$627
This SWISS deal was found by Cheapflights users on 6/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 9/248:40 amLHR - SAN
2 stops21h 22mSWISS
mer. 10/14:07 pmSAN - LHR
2 stops17h 43mSWISS
Deal found 6/11$631
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/111:30 amLHR - SAN
Nonstop11h 20mAmerican Airlines
mar. 9/93:01 pmSAN - LHR
1 stop13h 29mAmerican Airlines
Deal found 6/11$632
This Delta deal was found by Cheapflights users on 6/11. 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.
mar. 8/266:30 amLHR - SAN
1 stop13h 30mDelta
jeu. 9/111:55 pmSAN - LHR
1 stop12h 50mDelta
Deal found 6/11$645
This United Airlines deal was found by Cheapflights users on 6/12. 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.
jeu. 9/117:25 amLHR - SAN
1 stop16h 00mUnited Airlines
mar. 9/1610:54 amSAN - LHR
2 stops15h 46mUnited Airlines
Deal found 6/12$648
This Netflights deal was found by Cheapflights users on 6/11. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/279:20 amLCY - SAN
2 stops16h 57mVirgin Atlantic
mar. 9/91:22 pmSAN - LCY
2 stops19h 18mVirgin Atlantic
Deal found 6/11$649
This Mytrip deal was found by Cheapflights users on 6/10. 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.
jeu. 6/1910:45 amLGW - SAN
2 stops28h 28mMultiple Airlines
mer. 7/96:15 amSAN - LGW
2 stops20h 40mMultiple Airlines
Deal found 6/10$652
This SWISS deal was found by Cheapflights users on 6/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/29:25 amLCY - SAN
2 stops19h 23mSWISS
mar. 9/94:11 pmSAN - LCY
2 stops18h 34mSWISS
Deal found 6/11$656

Cheapflights Fare Finder

Customize your flight search to find flights from United Kingdom 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 juin 12, 2025.
Use the filters below to find and compare flights from the United Kingdom to San Diego that are best for you.

Fly from

United Kingdom

Fly to

San Diego

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

sam. 9/20

7:25 am-3:25 pm

1 stop16h 00m

San Diego

sam. 10/4

8:10 am-9:35 am

1 stop17h 25m

$623

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

mer. 9/24

11:30 am-2:50 pm

Nonstop11h 20m

San Diego

mar. 9/30

4:40 pm-11:25 am

Nonstop10h 45m

$624

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

mar. 8/26

6:30 am-12:00 pm

1 stop13h 30m

San Diego

mar. 9/9

1:22 pm-1:10 pm

1 stop15h 48m

$625

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

mer. 9/24

9:20 am-5:28 pm

1 stop16h 08m

San Diego

mer. 10/1

10:10 pm-8:00 pm

1 stop13h 50m

$626

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

mer. 9/24

6:55 am-3:25 pm

1 stop16h 30m

San Diego

mer. 10/1

12:52 pm-9:40 am

1 stop12h 48m

$627

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

mer. 9/24

8:40 am-10:02 pm

2 stops21h 22m

San Diego

mer. 10/1

4:07 pm-5:50 pm

2 stops17h 43m

$631

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

lun. 9/1

11:30 am-2:50 pm

Nonstop11h 20m

San Diego

mar. 9/9

3:01 pm-12:30 pm

1 stop13h 29m

$632

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

mer. 9/24

8:40 am-6:56 pm

2 stops18h 16m

San Diego

mer. 10/1

7:00 am-7:15 am

1 stop16h 15m

$633

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

jeu. 9/11

7:25 am-3:25 pm

1 stop16h 00m

San Diego

mar. 9/16

10:54 am-10:40 am

2 stops15h 46m

$648

LondonSan Diego

LCY - SAN

LCYSAN

London City

mer. 8/27

9:20 am-6:17 pm

2 stops16h 57m

San Diego

mar. 9/9

1:22 pm-4:40 pm

2 stops19h 18m

$649

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to San Diego

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

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

Currently, August is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of $286). Flying from United Kingdom 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.

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

Find hourly flight availability from United Kingdom 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 juin 12, 2025.

When flying from United Kingdom to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from United Kingdom to San Diego

Explore weekly flight availability from United Kingdom to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated juin 12, 2025.

The most flights from GB0 to SAN are scheduled on a Wednesday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

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.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

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).

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 juin 12, 2025.
To help decide which airline to fly from United Kingdom to San Diego, see what other customers have to say about Delta, KLM and Austrian Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
1,290 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom?

    Located just 2.6 mi from the city center, San Diego (SAN) is the airport most travelers will use when flying to San Diego from United Kingdom.

  • What are the cheapest airlines to fly from United Kingdom to San Diego one-way?

    The cheapest airlines for a one-way flight from United Kingdom to San Diego are WestJet ($564), Aer Lingus ($585), and British Airways ($618).

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

    When deciding which route to take from United Kingdom to San Diego consider London Heathrow - San Diego, London Gatwick - San Diego or London City - San Diego as they are the most popular.

  • What are the most reliable airlines from United Kingdom to San Diego?

    Before booking your flight to San Diego from United Kingdom, check out the most reliable airlines to get you to your destination on time: Iberia (91%), American Airlines (85%), Alaska Airlines( 85%).

  • What are the cheapest flights from United Kingdom to San Diego?

    Looking for the cheapest flight from United Kingdom to San Diego? While on average our users pay $1,384, our data indicates the cheapest price to be $543. The most popular route (London Heathrow - San Diego), is priced around $589.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to San Diego?

    Currently, August is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of $286). Flying from United Kingdom 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 the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Imperial Beach
La Mesa
Alpine
Lemon Grove
Poway
Santee
Coronado

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Alternative routes for United Kingdom to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from United Kingdom to San Diego

Discover the top 4 airlines that operate flights from United Kingdom 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 juin 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$523Average$710FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$539Average$815FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$563Average$720FlexibilityNo cancel feeOn-time71%
IberiaCheapest$576Average$780FlexibilityNo cancel feeOn-time77%

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