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$655+ Cheap flights from Heathrow (LHR) to San Diego (SAN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from London Heathrow to San Diego are usually found in February or January, booked 54 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Heathrow to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$655
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$833
Provider with most accurate pricing for London Heathrow-San Diego flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-San Diego flights.
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From London Heathrow to San Diego
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High demand for flights, 15% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Heathrow to San Diego

Cheapest flights from Heathrow to San Diego
Explore the most affordable flight options available from Heathrow to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This British Airways deal was found by Cheapflights users on 12/18. 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.
Mon 12/3011:55 amLHR - SAN
1 stop15h 17mBritish Airways
Mon 2/36:10 pmSAN - LHR
Nonstop10h 25mBritish Airways
Deal found 12/18$659
This Finnair deal was found by Cheapflights users on 12/18. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2812:50 pmLHR - SAN
Nonstop11h 15mFinnair
Tue 2/46:10 pmSAN - LHR
Nonstop10h 25mFinnair
Deal found 12/18$686
This Virgin Atlantic deal was found by Cheapflights users on 12/17. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2910:45 amLHR - SAN
1 stop15h 17mVirgin Atlantic
Wed 1/2210:10 pmSAN - LHR
1 stop14h 00mVirgin Atlantic
Deal found 12/17$690
This Justfly.com deal was found by Cheapflights users on 12/18. 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.
Sun 12/2912:50 pmLHR - SAN
Nonstop11h 15mMultiple Airlines
Sat 2/16:10 pmSAN - LHR
Nonstop10h 25mMultiple Airlines
Deal found 12/18$691
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Tue 12/319:20 amLHR - SAN
1 stop20h 06mUnited Airlines
Tue 2/48:35 amSAN - LHR
2 stops15h 20mUnited Airlines
Deal found 12/18$698
This ChecknFly deal was found by Cheapflights users on 12/17. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2611:35 amLHR - SAN
2 stops18h 54mLufthansa
Sat 1/117:43 pmSAN - LHR
2 stops27h 47mLufthansa
Deal found 12/17$705
This KAYAK deal was found by Cheapflights users on 12/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2912:50 pmLHR - SAN
Nonstop11h 15mIberia
Fri 1/319:29 amSAN - LHR
1 stop12h 51mIberia
Deal found 12/18$712
This Delta deal was found by Cheapflights users on 12/18. 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.
Thu 12/266:20 amLHR - SAN
2 stops19h 42mDelta
Sat 1/116:15 amSAN - LHR
2 stops16h 50mDelta
Deal found 12/18$732
This KLM deal was found by Cheapflights users on 12/18. 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.
Mon 12/309:10 amLHR - SAN
1 stop19h 56mKLM
Fri 1/317:25 amSAN - LHR
1 stop15h 25mKLM
Deal found 12/18$759
This Air Canada deal was found by Cheapflights users on 12/18. 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.
Fri 12/273:00 pmLHR - SAN
2 stops29h 03mAir Canada
Wed 1/2911:45 amSAN - LHR
1 stop14h 25mAir Canada
Deal found 12/18$823
This American Airlines deal was found by Cheapflights users on 12/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:50 pmLHR - SAN
Nonstop11h 15mAmerican Airlines
Tue 1/71:46 pmSAN - LHR
1 stop14h 14mAmerican Airlines
Deal found 12/16$991
This Scandinavian Airlines deal was found by Cheapflights users on 12/18. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:40 amLHR - SAN
2 stops24h 52mScandinavian Airlines
Fri 1/317:10 amSAN - LHR
2 stops24h 50mScandinavian Airlines
Deal found 12/18$1,326

Find flights from Heathrow to San Diego within your budget

Customize your flight search to find flights from Heathrow 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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 1/12

2:50 pm-11:45 am

1 stop28h 55m

San Diego

Sun 1/19

1:31 pm-12:50 pm

2 stops39h 19m

$655

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 1/31

12:50 pm-4:05 pm

Nonstop11h 15m

San Diego

Sat 2/15

6:10 pm-12:35 pm

Nonstop10h 25m

$656

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 1/19

12:50 pm-4:05 pm

Nonstop11h 15m

San Diego

Sat 2/22

6:15 am-9:20 am

1 stop19h 05m

$660

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 1/19

5:50 pm-3:25 pm

1 stop29h 35m

San Diego

Fri 5/23

10:45 am-11:10 am

1 stop16h 25m

$661

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 1/16

3:00 pm-12:03 pm

2 stops29h 03m

San Diego

Thu 1/30

7:30 pm-7:10 am

2 stops27h 40m

$664

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 2/7

12:50 pm-4:05 pm

Nonstop11h 15m

San Diego

Wed 2/12

6:10 pm-12:35 pm

Nonstop10h 25m

$669

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 1/16

10:25 am-6:44 pm

1 stop16h 19m

San Diego

Thu 1/30

1:45 pm-10:50 am

1 stop13h 05m

$672

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 1/31

12:05 pm-10:30 pm

2 stops42h 25m

San Diego

Fri 2/7

3:58 pm-4:20 pm

2 stops40h 22m

$676

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 1/18

6:00 am-8:52 pm

2 stops22h 52m

San Diego

Sat 1/25

8:15 am-11:15 am

2 stops19h 00m

$677

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 12/29

10:45 am-6:02 pm

1 stop15h 17m

San Diego

Wed 1/22

10:10 pm-8:10 pm

1 stop14h 00m

$690

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 29 results
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Compare providers for flights from Heathrow to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to San Diego in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
KAYAKPrice Accuracy1 starTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Heathrow 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.

Travel insights for flights from Heathrow to San Diego

Get recent, data-driven insights about flights from Heathrow to San Diego including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Heathrow Airport to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to San Diego. Price data was last updated on December 13, 2024.

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London Heathrow Airport to San Diego?

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to San Diego (average of $266). Flying from London Heathrow Airport to San Diego in March is currently the most expensive (average of $339). 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 LHR to SAN?

Find hourly flight availability from Heathrow 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 December 18, 2024.

One of the essential ways to save on airfare from London Heathrow Airport to San Diego is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 12% on airfare.

Weekly flight availability from London Heathrow Airport to San Diego

Explore weekly flight availability from Heathrow 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 December 18, 2024.

The most flights from LHR 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).

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 December 18, 2024.
Peruse reviews from past customers who have flown with British Airways, Iberia and Lufthansa from London to San Diego to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines
7.6
Good
787 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.6
Good
1,606 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

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 Heathrow 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 London Heathrow?

    Located just 2.6 mi from the city center, San Diego is the airport most travelers will use when flying to San Diego from London Heathrow. Booking flights from London Heathrow to San Diego (SAN) should be relatively easy as there are 6 daily inbound flights from London Heathrow from 3 different airlines.

  • What are the cheapest airlines flying from London Heathrow Airport to San Diego round-trip?

    Our cheapest airline available from London Heathrow Airport to San Diego is British Airways. Our recent data shows that you can find tickets from as low as $656 on this airline. Additional options worth looking into are Iberia and Lufthansa, starting at $660 and $661 round-trip. British Airways is currently priced 13% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from London Heathrow Airport to San Diego one-way?

    The cheapest airline one-way is Lufthansa, with whom users have recently found tickets for as low as $677. However, be on the lookout for offers from Icelandair and WestJet, as they are both options that can get you from London Heathrow Airport to San Diego for a low price.

  • What are the most reliable airlines from London Heathrow Airport to San Diego?

    The top 3 most reliable airlines when flying from London Heathrow Airport to San Diego are Aer Lingus (73%), Finnair (73%) and American Airlines (73%).

  • What are the cheapest flights from London Heathrow Airport to San Diego?

    Looking for the cheapest flight from London Heathrow Airport to San Diego? While on average our users pay $911, our data indicates the cheapest price to be $650. The most popular route (London Heathrow - San Diego), is priced around $579.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 London Heathrow Airport to San Diego?

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to San Diego (average of $266). Flying from London Heathrow Airport to San Diego in March is currently the most expensive (average of $339). 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.

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Alternative routes for Heathrow to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Heathrow to San Diego

Discover the top 3 airlines that operate flights from Heathrow 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$543Average$754FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$563Average$748FlexibilityNo cancel feeOn-time71%
IberiaCheapest$576Average$715FlexibilityNo cancel feeOn-time77%
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