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Cheap flights from the United Kingdom to San Diego from £427

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
24 Aug — 31 Aug1
1 adult

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 19 August 2025.

Round-trip from

£480

One-way from

£427

Popular in

July

Cheapest in

February

Average price

£714

Good round-trip deal

£518 or less

Good one-way deal

£537 or less
2/9-8/9
  • 2/9-8/9
  • 3 total stops
  • 66h 32m total
  • United Kingdom to San Diego
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15/2
  • 15/2
  • 2 total stops
  • 45h 31m total
  • United Kingdom to San Diego
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£77 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
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 19 August 2025.

Tue 2/914:00LGW - SAN
2 stops41h 37mMultiple Airlines
Mon 8/921:25SAN - LGW
1 stop24h 55mMultiple Airlines
Deal found 17/8£480
Tue 23/908:45LHR - SAN
2 stops18h 50mAir Canada
Fri 10/1008:10SAN - LHR
1 stop14h 20mAir Canada
Deal found 18/8£482
Fri 12/910:55LGW - SAN
2 stops28h 34mMultiple Airlines
Wed 24/906:15SAN - LGW
2 stops20h 40mMultiple Airlines
Deal found 17/8£483
Sun 21/910:00LGW - SAN
2 stops33h 09mMultiple Airlines
Tue 7/1021:51SAN - LGW
1 stop24h 29mMultiple Airlines
Deal found 17/8£484
Mon 22/917:40LHR - SAN
2 stops27h 40mAir Canada
Mon 6/1008:10SAN - LHR
1 stop17h 25mAir Canada
Deal found 17/8£484
Thu 18/907:25LHR - SAN
1 stop16h 00mUnited Airlines
Thu 25/910:15SAN - LHR
1 stop13h 25mUnited Airlines
Deal found 19/8£485
Tue 28/1006:35LHR - SAN
1 stop17h 10mUnited Airlines
Fri 14/1109:00SAN - LHR
1 stop16h 40mUnited Airlines
Deal found 18/8£485
Wed 29/1009:25LCY - SAN
2 stops19h 55mSWISS
Tue 2/1213:05SAN - LCY
2 stops20h 00mSWISS
Deal found 18/8£487
Sat 6/907:25LHR - SAN
1 stop16h 00mLufthansa
Fri 12/914:11SAN - LHR
1 stop13h 34mLufthansa
Deal found 19/8£488
Wed 19/1114:30LHR - SAN
1 stop29h 33mAir Canada
Wed 3/1212:45SAN - LHR
1 stop15h 05mAir Canada
Deal found 19/8£488
Mon 22/909:30LHR - SAN
1 stop18h 05mUnited Airlines
Mon 6/1016:05SAN - LHR
1 stop12h 15mUnited Airlines
Deal found 19/8£489
Fri 5/910:00LGW - SAN
2 stops29h 29mMultiple Airlines
Mon 22/921:25SAN - LGW
1 stop24h 55mMultiple Airlines
Deal found 17/8£490

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 19 August 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

LGW - SAN

LGWSAN

London Gatwick

Tue 2/9

14:00-23:37

2 stops41h 37m

San Diego

Mon 8/9

21:25-06:20

1 stop24h 55m

£480

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 23/9

08:45-19:35

2 stops18h 50m

San Diego

Fri 10/10

08:10-06:30

1 stop14h 20m

£482

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Fri 12/9

10:55-07:29

2 stops28h 34m

San Diego

Wed 24/9

06:15-10:55

2 stops20h 40m

£483

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Sat 20/9

10:00-11:09

2 stops33h 09m

San Diego

Thu 2/10

09:00-10:00

1 stop17h 00m

£483

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 22/9

17:40-13:20

2 stops27h 40m

San Diego

Mon 6/10

08:10-09:35

1 stop17h 25m

£484

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Sun 21/9

10:00-11:09

2 stops33h 09m

San Diego

Tue 7/10

21:51-06:20

1 stop24h 29m

£484

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Mon 10/11

13:00-12:45

1 stop31h 45m

San Diego

Sat 15/11

21:59-06:00

1 stop24h 01m

£484

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 28/10

06:35-16:45

1 stop17h 10m

San Diego

Fri 14/11

09:00-09:40

1 stop16h 40m

£485

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 31/10

06:35-16:45

1 stop17h 10m

San Diego

Mon 10/11

12:43-09:40

1 stop12h 57m

£485

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 29/10

09:25-22:20

2 stops19h 55m

San Diego

Tue 2/12

13:05-17:05

2 stops20h 00m

£487

Flights are sorted by cheapest return flights first.

Deals found on 19/8

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 return 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, January is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of £585). Flying from United Kingdom to San Diego in July is currently the most expensive (average of £920). 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 19 August 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 19 August 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 19 August 2025.
Read through reviews of airlines operating flights from the United Kingdom to San Diego, such as Finnair, Virgin Atlantic, andIberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,320 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.5

Crew

8.1

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,320 reviews
Finnair
7.6
Good
1,320 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.5

Crew

8.1

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Virgin Atlantic
7.4
Good
657 reviews
Finnair
7.6
Good
1,320 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.5

Crew

8.1

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Iberia
7.0
Good
2,885 reviews
Finnair
7.6
Good
1,320 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.5

Crew

8.1

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Lufthansa
6.8
Okay
7,334 reviews
Finnair
7.6
Good
1,320 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.5

Crew

8.1

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,283 reviews
Finnair
7.6
Good
1,320 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.5

Crew

8.1

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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?

    Most people fly into San Diego (SAN) if they book a flight to San Diego from United Kingdom. San Diego is conveniently located just 2.6 mi from San Diego’s city center.

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

    Air Canada, United Airlines, and SWISS can get you from United Kingdom to San Diego in just under 17h 10m. Your travel time can differ by up to 2h 45m. There are 5469 mi between United Kingdom and San Diego. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The cheapet airlines for a one-way flight from United Kingdom to San Diego are WestJet (£471), Aer Lingus (£500), and Lufthansa (£533).

  • 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?

    The top 3 most reliable airlines when flying from United Kingdom to San Diego are American Airlines (71%), Alaska Airlines (71%) and British Airways (71%).

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

    On average you can expect to pay £1,980 for a flight from United Kingdom to San Diego. The cheapest flight overall is £458 while the most popular route, (London Heathrow - San Diego) is currently priced at £443.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of £585). Flying from United Kingdom to San Diego in July is currently the most expensive (average of £920). 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

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
El Cajon

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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 10 airlines flying from United Kingdom to San Diego

Discover the top 10 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 858,174 searches. Data last updated 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£368Average£509FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapest£384Average£511FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£397Average£644FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£399Average£619FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£406Average£566FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£411Average£576FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£420Average£573FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£421Average£594FlexibilityNo cancel feeOn-time75%
Search KLM flights
American AirlinesCheapest£436Average£618FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
IberiaCheapest£485Average£617FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to San Diego?

Deals for United Kingdom to San Diego flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to San Diego?

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to San Diego by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from United Kingdom to San Diego with no change fees?

Certainly. Search results for flights to San Diego from United Kingdom shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from United Kingdom to San Diego become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Diego from United Kingdom today and book when prices fit your budget.

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