HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$448+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from United Kingdom to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 septiembre 16, 2025.

Round-trip from

$628
(Air Canada)

One-way from

$448
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$680

Good round-trip deal

$767 or less

Good one-way deal

$821 or less
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. 15% potential increase in price ($140 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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

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 septiembre 16, 2025.

This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/29:30 amLHR - SAN
1 stop18h 05mAir Canada
dom. 10/58:10 amSAN - LHR
2 stops19h 40mAir Canada
Deal found 9/16$628
This The Travel House 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/198:25 amLHR - SAN
2 stops32h 36mIcelandair
lun. 9/298:55 pmSAN - LHR
2 stops28h 35mIcelandair
Deal found 9/16$629
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/223:50 pmLHR - SAN
2 stops29h 30mAir Canada
lun. 10/68:10 amSAN - LHR
1 stop17h 25mAir Canada
Deal found 9/15$630
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/106:35 amLHR - SAN
1 stop17h 10mUnited Airlines
lun. 1/126:00 pmSAN - LHR
2 stops18h 35mUnited Airlines
Deal found 9/16$631
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/176:40 pmLGW - SAN
2 stops34h 08mSWISS
lun. 11/244:01 pmSAN - LGW
2 stops17h 49mSWISS
Deal found 9/16$632
This The Travel House 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/1512:20 pmLHR - SAN
2 stops30h 19mIcelandair
sáb. 11/229:15 pmSAN - LHR
2 stops25h 40mIcelandair
Deal found 9/15$632
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.
mié. 9/246:30 amLHR - SAN
2 stops16h 55mDelta
jue. 10/27:46 pmSAN - LHR
1 stop13h 29mDelta
Deal found 9/15$633
This The Travel House 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/228:25 amLHR - SAN
2 stops32h 36mIcelandair
sáb. 9/278:55 pmSAN - LHR
2 stops28h 35mIcelandair
Deal found 9/16$635
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/912:50 pmLHR - SAN
Nonstop11h 20mBritish Airways
lun. 1/1210:56 amSAN - LHR
1 stop35h 54mBritish Airways
Deal found 9/15$638
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/98:30 amLHR - SAN
2 stops20h 15mUnited Airlines
lun. 1/127:52 pmSAN - LHR
1 stop27h 33mUnited Airlines
Deal found 9/15$639
This TravelUp deal was found by Cheapflights users on 9/14. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/299:50 amLCY - SAN
2 stops17h 58mLufthansa
mié. 11/54:01 pmSAN - LCY
2 stops16h 39mLufthansa
Deal found 9/14$646
This Norse 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/31:00 pmLGW - SAN
1 stop31h 45mMultiple Airlines
lun. 11/179:59 pmSAN - LGW
1 stop24h 01mMultiple Airlines
Deal found 9/16$647

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 septiembre 16, 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

lun. 10/6

4:25 pm-11:40 pm

1 stop15h 15m

San Diego

jue. 10/16

3:06 pm-12:15 pm

1 stop13h 09m

$629

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

sáb. 9/27

11:25 am-5:17 pm

1 stop13h 52m

San Diego

mié. 10/22

10:15 am-7:40 am

1 stop13h 25m

$629

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

lun. 11/17

6:40 pm-8:48 pm

2 stops34h 08m

San Diego

lun. 11/24

4:01 pm-5:50 pm

2 stops17h 49m

$632

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

mar. 12/9

8:30 am-8:45 pm

2 stops20h 15m

San Diego

lun. 1/12

7:52 pm-7:25 am

1 stop27h 33m

$639

LondonSan Diego

LCY - SAN

LCYSAN

London City

mié. 10/29

9:50 am-8:48 pm

2 stops17h 58m

San Diego

mié. 11/5

4:01 pm-4:40 pm

2 stops16h 39m

$646

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

lun. 11/3

1:00 pm-12:45 pm

1 stop31h 45m

San Diego

lun. 11/17

9:59 pm-6:00 am

1 stop24h 01m

$647

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

lun. 1/26

2:00 pm-7:50 pm

1 stop37h 50m

San Diego

dom. 2/8

10:00 pm-10:00 am

1 stop28h 00m

$650

LondonSan Diego

LCY - SAN

LCYSAN

London City

lun. 11/3

9:15 am-8:48 pm

2 stops19h 33m

San Diego

lun. 11/17

1:10 pm-5:05 pm

2 stops19h 55m

$659

LondonSan Diego

LCY - SAN

LCYSAN

London City

lun. 11/17

7:10 pm-8:48 pm

2 stops33h 38m

San Diego

lun. 11/24

4:01 pm-5:05 pm

2 stops17h 04m

$661

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

mar. 10/14

6:30 am-3:51 pm

2 stops17h 21m

San Diego

mar. 10/21

10:38 am-11:10 am

2 stops16h 32m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results
1
2
3
...
6

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 septiembre 16, 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 septiembre 16, 2025.

The most flights from GB0 to SAN are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 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 septiembre 16, 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
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

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
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

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
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

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
2,924 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

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
7,363 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

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?

    British Airways, United Airlines, and SWISS can get you from United Kingdom to San Diego in just under 13h 52m. Your travel time can differ by up to 20h 16m. 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 British Airways ($538), Virgin Atlantic ($550), and Delta ($558).

  • 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 (73%), Alaska Airlines (73%), British Airways( 73%).

  • 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 $824, our data indicates the cheapest price to be $711. The most popular route (London Heathrow - San Diego), is priced around $566.

  • 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 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for United Kingdom to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to Los Angeles flights
Frankfurt to Los Angeles flights
Heathrow to Los Angeles flights
Frankfurt to San Francisco flights
Charles de Gaulle to San Francisco flights
Madrid to Los Angeles flights
Heathrow to San Francisco flights
Orly to Los Angeles flights
Heathrow to Las Vegas flights
Charles de Gaulle to Burbank flights
Frankfurt to San Jose flights
Barcelona-El Prat to Los Angeles flights
Beauvais-Tille to Los Angeles flights
Frankfurt to Las Vegas flights
Frankfurt to Ontario flights
Frankfurt to Santa Ana flights
Frederic Chopin to Los Angeles flights
Frankfurt to Long Beach flights
Charles de Gaulle to Las Vegas flights
Orly to Las Vegas flights
Madrid to Ontario flights
Munich to Los Angeles flights
Madrid to Santa Ana flights
London City to Los Angeles flights
Zurich to Los Angeles flights
Charles de Gaulle to Long Beach flights
Amsterdam to Los Angeles flights
Berlin to Los Angeles flights
Gatwick to Los Angeles flights
Frankfurt-Hahn to San Francisco flights
Gatwick to San Francisco flights
Zurich to San Francisco flights
Gatwick to Las Vegas flights
Munich to San Francisco flights
Copenhagen to Los Angeles flights
Istanbul to Los Angeles flights
Frankfurt-Hahn to Los Angeles flights
Barcelona-El Prat to San Francisco flights
Dublin to Los Angeles flights
London City to San Francisco flights
Malpensa to Los Angeles flights
Vienna to Los Angeles flights
Dublin to Las Vegas flights
Leonardo da Vinci/Fiumicino to Los Angeles flights
Frankfurt to Oakland flights
Leonardo da Vinci/Fiumicino to San Francisco flights

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 septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$533Average$715FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$589Average$806FlexibilityNo cancel feeOn-time70%
IberiaCheapest$599Average$804FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$664Average$844FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.