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Cheap flights from the United Kingdom to San Diego from £293

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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Find flight deals from United Kingdom to San Diego

Enter your travel dates to find the best prices.

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 17 October 2025.

Mon 1/1206:00LHR - SAN
2 stops37h 53mMultiple Airlines
Mon 8/1212:45SAN - LHR
2 stops34h 25mMultiple Airlines
Deal found 17/10£468
Mon 10/1109:20LHR - SAN
1 stop17h 56mJetBlue
Mon 24/1121:13SAN - LHR
1 stop16h 27mJetBlue
Deal found 15/10£470
Mon 24/1119:15LHR - SAN
1 stop28h 30mLufthansa
Tue 9/1217:35SAN - LHR
1 stop14h 15mLufthansa
Deal found 15/10£472
Fri 21/1108:45LHR - SAN
1 stop15h 00mLufthansa
Thu 4/1209:54SAN - LHR
1 stop13h 31mLufthansa
Deal found 15/10£474
Mon 24/1109:30LHR - SAN
2 stops20h 23mUnited Airlines
Mon 8/1219:00SAN - LHR
2 stops17h 35mUnited Airlines
Deal found 16/10£475
Mon 1/1214:30LHR - SAN
1 stop34h 54mAir Canada
Mon 8/1218:10SAN - LHR
1 stop33h 40mAir Canada
Deal found 17/10£476
Fri 21/1106:35LHR - SAN
1 stop17h 10mMultiple Airlines
Thu 4/1209:54SAN - LHR
2 stops17h 56mMultiple Airlines
Deal found 15/10£479
Mon 24/1110:05LHR - SAN
1 stop16h 29mMultiple Airlines
Tue 9/1207:42SAN - LHR
1 stop14h 58mMultiple Airlines
Deal found 15/10£481
Wed 12/1109:20LCY - SAN
2 stops21h 00mSWISS
Wed 19/1107:00SAN - LCY
2 stops26h 40mSWISS
Deal found 15/10£499
Mon 24/1109:50LCY - SAN
2 stops18h 58mMultiple Airlines
Mon 8/1207:00SAN - LCY
2 stops21h 50mMultiple Airlines
Deal found 16/10£500
Mon 24/1109:50LCY - SAN
2 stops20h 03mMultiple Airlines
Tue 9/1207:42SAN - LCY
2 stops21h 08mMultiple Airlines
Deal found 15/10£500
Fri 21/1114:00LGW - SAN
1 stop38h 21mMultiple Airlines
Thu 4/1210:45SAN - LGW
1 stop15h 15mMultiple Airlines
Deal found 15/10£512

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 17 October 2025.

Round-trip from

£468

One-way from

£293

Popular in

July

Cheapest in

February

Average price

£581

Good round-trip deal

£514 or less

Good one-way deal

£464 or less
Air Canada
  • Air Canada
  • 1/12-8/12
  • 4 total stops
  • 72h 18m total
  • United Kingdom to San Diego
Search Deals
6/11
  • 6/11
  • 3 total stops
  • 41h 50m total
  • United Kingdom to San Diego
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£74 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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

 
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 17 October 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

Mon 24/11

09:30-21:53

2 stops20h 23m

San Diego

Mon 8/12

19:00-20:35

2 stops17h 35m

£475

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 14/11

13:50-10:21

2 stops52h 31m

San Diego

Sun 16/11

22:48-20:35

1 stop13h 47m

£499

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 24/11

09:50-20:48

2 stops18h 58m

San Diego

Mon 8/12

07:00-12:50

2 stops21h 50m

£500

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 2/12

07:25-10:28

2 stops35h 03m

San Diego

Sun 7/12

13:57-06:55

2 stops32h 58m

£502

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 21/11

13:30-00:13

2 stops18h 43m

San Diego

Thu 4/12

19:00-21:20

2 stops18h 20m

£503

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 20/2

08:45-15:45

1 stop15h 00m

San Diego

Tue 24/2

07:00-07:55

1 stop16h 55m

£506

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 14/11

13:30-00:13

2 stops18h 43m

San Diego

Mon 17/11

13:10-13:30

2 stops16h 20m

£507

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Fri 21/11

14:00-20:21

1 stop38h 21m

San Diego

Thu 4/12

10:45-10:00

1 stop15h 15m

£512

EdinburghSan Diego

EDI - SAN

EDISAN

Edinburgh Turnhouse

Wed 26/11

06:00-18:50

2 stops20h 50m

San Diego

Wed 10/12

13:05-18:55

2 stops21h 50m

£514

LondonSan Diego

LCY - SAN

LCYSAN

London City

Sat 7/3

08:40-22:40

2 stops22h 00m

San Diego

Tue 10/3

16:04-17:05

2 stops18h 01m

£520

Flights are sorted by cheapest return flights first.

Deals found on 17/10

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 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, April is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of £370). Flying from United Kingdom to San Diego in July is currently the most expensive (average of £414). 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 17 October 2025.

It’s optimal to fly from United Kingdom to San Diego at midday. By choosing this option you can save up to 6% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from United Kingdom to San Diego?

Use this chart to determine the cheapest time to fly return from United Kingdom to San Diego. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their United Kingdom to San Diego flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 17 October 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 17 October 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
1,332 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,332 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Virgin Atlantic
7.5
Good
670 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Iberia
7.0
Good
2,994 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Lufthansa
6.8
Okay
7,497 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
British Airways
6.7
Okay
7,457 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

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?

    United Airlines, Icelandair, and SWISS can get you from United Kingdom to San Diego in just under 20h 23m. Your travel time can differ by up to 14h 40m. 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 British Airways (£337), Virgin Atlantic (£345), and Delta (£367).

  • 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 (72%), Alaska Airlines (72%) and British Airways (72%).

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

    On average you can expect to pay £2,014 for a flight from United Kingdom to San Diego. The cheapest flight overall is £365 while the most popular route, (London Heathrow - San Diego) is currently priced at £447.

  • 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, April is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of £370). Flying from United Kingdom to San Diego in July is currently the most expensive (average of £414). 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 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£386Average£490FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£397Average£573FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£400Average£646FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£411Average£582FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£413Average£615FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£416Average£517FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£422Average£631FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£425Average£625FlexibilityNo cancel feeOn-time75%
Search KLM flights
JetBlueCheapest£454Average£820FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest£468Average£625FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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