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$464+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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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 November 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Tue 12/27:25 pmLHR - SAN
2 stops33h 08mMultiple Airlines
Tue 12/97:00 amSAN - LHR
1 stop14h 55mMultiple Airlines
Deal found 11/1$654
This SWISS deal was found by Cheapflights users on 11/1. 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.
Tue 12/28:05 pmLHR - SAN
2 stops34h 25mSWISS
Tue 12/910:52 amSAN - LHR
2 stops18h 08mSWISS
Deal found 11/1$672
This Justfly.com deal was found by Cheapflights users on 11/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amLHR - SAN
2 stops37h 53mMultiple Airlines
Mon 12/812:45 pmSAN - LHR
1 stop15h 05mMultiple Airlines
Deal found 11/1$674
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Wed 12/36:30 amLHR - SAN
2 stops21h 22mUnited Airlines
Tue 12/97:05 amSAN - LHR
1 stop15h 15mUnited Airlines
Deal found 11/1$678
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Wed 12/36:30 amLHR - SAN
2 stops19h 58mUnited Airlines
Wed 12/1011:02 amSAN - LHR
1 stop18h 28mUnited Airlines
Deal found 11/3$679
This Norse deal was found by Cheapflights users on 11/2. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/242:00 pmLGW - SAN
1 stop28h 19mMultiple Airlines
Tue 12/99:59 pmSAN - LGW
1 stop24h 01mMultiple Airlines
Deal found 11/2$685
This Norse deal was found by Cheapflights users on 11/2. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/242:00 pmLGW - SAN
1 stop28h 19mMultiple Airlines
Mon 12/89:59 pmSAN - LGW
1 stop24h 01mMultiple Airlines
Deal found 11/2$686
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Wed 12/36:30 amLHR - SAN
2 stops21h 22mUnited Airlines
Sun 12/79:55 pmSAN - LHR
1 stop24h 45mUnited Airlines
Deal found 11/1$689
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/48:45 amLHR - SAN
1 stop15h 00mLufthansa
Wed 12/102:16 pmSAN - LHR
1 stop12h 59mLufthansa
Deal found 11/3$690
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Tue 12/210:05 amLHR - SAN
1 stop16h 23mLufthansa
Mon 12/1512:50 pmSAN - LHR
1 stop12h 50mLufthansa
Deal found 11/1$691
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Tue 12/210:05 amLHR - SAN
1 stop16h 23mLufthansa
Mon 12/82:16 pmSAN - LHR
1 stop12h 59mLufthansa
Deal found 11/1$692
This SWISS deal was found by Cheapflights users on 11/2. 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.
Tue 12/27:10 pmLCY - SAN
2 stops35h 20mSWISS
Tue 12/910:52 amSAN - LCY
2 stops18h 03mSWISS
Deal found 11/2$697

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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$653
(TravelUp)

One-way from

$464
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$720

Good round-trip deal

$1,055 or less

Good one-way deal

$582 or less
Provider with most accurate pricing for London (LON)-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-San Diego flights.
Search Deals
From United Kingdom to San Diego
Search Deals
One-way flight from United Kingdom to San Diego
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($126 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to San Diego.
Search Deals
Price to beat on a one-way flight from United Kingdom to San Diego.
Search Deals

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 November 3, 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

Tue 12/2

8:05 pm-10:30 pm

2 stops34h 25m

San Diego

Tue 12/9

10:52 am-1:00 pm

2 stops18h 08m

$673

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 12/9

9:30 am-8:45 pm

2 stops19h 15m

San Diego

Thu 12/25

6:30 am-7:10 am

2 stops16h 40m

$679

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Fri 12/5

2:00 pm-8:29 pm

1 stop38h 29m

San Diego

Tue 12/9

9:59 pm-6:00 am

1 stop24h 01m

$703

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Mon 11/24

2:00 pm-10:19 am

1 stop28h 19m

San Diego

Tue 12/9

9:59 pm-6:00 am

1 stop24h 01m

$707

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Sat 1/10

2:00 pm-9:39 am

1 stop27h 39m

San Diego

Thu 1/29

10:35 am-10:00 am

1 stop15h 25m

$715

LondonSan Diego

LCY - SAN

LCYSAN

London City

Tue 1/13

9:50 am-12:15 am

2 stops22h 25m

San Diego

Tue 1/20

8:10 am-9:15 am

2 stops17h 05m

$717

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 3/19

6:35 am-4:45 pm

1 stop17h 10m

San Diego

Sun 3/22

7:38 pm-5:55 am

2 stops27h 17m

$729

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 5/1

7:25 am-3:25 pm

1 stop16h 00m

San Diego

Wed 5/13

10:45 am-10:10 am

1 stop15h 25m

$735

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Mon 1/12

6:05 am-7:13 pm

2 stops21h 08m

San Diego

Wed 1/21

7:00 am-9:55 am

2 stops18h 55m

$740

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 11/25

7:40 am-3:45 pm

1 stop16h 05m

San Diego

Tue 12/9

2:16 pm-11:15 am

1 stop12h 59m

$747

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

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, December is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of $455). Flying from United Kingdom to San Diego in July is currently the most expensive (average of $556). 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 November 3, 2025.

A simple way to save on the total cost of your ticket is to fly from United Kingdom to San Diego at noon. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the evening.

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 November 3, 2025.

The most flights from GB0 to SAN are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

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 November 3, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from the United Kingdom to San Diego. 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
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

7.9

Food

7.3

Boarding

8.2

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
7.9
Good
8,001 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

7.9

Food

7.3

Boarding

8.2

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
8,997 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

7.9

Food

7.3

Boarding

8.2

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
11,036 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

7.9

Food

7.3

Boarding

8.2

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
Iberia
7.0
Good
3,005 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

7.9

Food

7.3

Boarding

8.2

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
British Airways
6.7
Okay
7,494 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

7.9

Food

7.3

Boarding

8.2

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.

  • How long is the flight from United Kingdom to San Diego?

    SWISS, United Airlines, and KLM can get you from United Kingdom to San Diego in just under 19h 15m. Your travel time can differ by up to 15h 10m. The distance between United Kingdom and San Diego is about 5469 mi. This flight may include one or multiple stops.

  • 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 United Airlines ($531), British Airways ($532), and JetBlue ($539).

  • 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: American Airlines (68%), Alaska Airlines (68%), British Airways( 68%).

  • 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 $870, our data indicates the cheapest price to be $501. The most popular route (London Heathrow - San Diego), is priced around $653.

  • 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, December is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of $455). Flying from United Kingdom to San Diego in July is currently the most expensive (average of $556). 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
National City

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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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$533Average$710FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$589Average$894FlexibilityNo cancel feeOn-time70%
IberiaCheapest$599Average$784FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$664Average$843FlexibilityNo cancel feeOn-time71%

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