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Cheap flights from London Heathrow Airport to San Diego from £523

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
27 Dec — 3 Jan1
1 adult

The best prices from London Heathrow to San Diego are usually found in February or January, booked 54 days in advance, depart on a Friday or Wednesday and return on a Saturday

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 22 December 2024.

Round-trip from

£527

Popular in

August

Cheapest in

February

Average price

£669
14/1-18/1
  • 14/1-18/1
  • 3 total stops
  • 67h 49m total
  • London to San Diego
High demand for flights, 15% potential price rise
Best time to find cheap flights, 3% potential price drop
Average for round-trip flights in December 2024

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 22 December 2024.

Sun 29/1212:50LHR - SAN
Nonstop11h 15mIberia
Sat 11/118:10SAN - LHR
Nonstop10h 25mIberia
Deal found 22/12£523
Sun 29/1213:10LHR - SAN
1 stop16h 59mAmerican Airlines
Fri 10/118:10SAN - LHR
Nonstop10h 25mAmerican Airlines
Deal found 22/12£526
Thu 26/1213:45LHR - SAN
1 stop15h 55mLufthansa
Sat 11/108:15SAN - LHR
1 stop14h 25mLufthansa
Deal found 21/12£556
Thu 26/1206:20LHR - SAN
2 stops17h 45mDelta
Sat 11/106:15SAN - LHR
2 stops16h 50mDelta
Deal found 21/12£575
Wed 25/1210:10LHR - SAN
1 stop21h 49mKLM
Wed 1/106:35SAN - LHR
1 stop22h 05mKLM
Deal found 21/12£586
Fri 27/1211:35LHR - SAN
2 stops16h 28mUnited Airlines
Fri 10/121:30SAN - LHR
2 stops15h 05mUnited Airlines
Deal found 21/12£589
Wed 25/1211:50LHR - SAN
1 stop17h 11mFinnair
Tue 31/1218:10SAN - LHR
Nonstop10h 25mFinnair
Deal found 21/12£632
Sun 29/1212:50LHR - SAN
Nonstop11h 15mBritish Airways
Thu 16/118:10SAN - LHR
Nonstop10h 25mBritish Airways
Deal found 22/12£735
Sun 29/1214:30LHR - SAN
1 stop29h 33mMultiple Airlines
Sun 12/107:00SAN - LHR
2 stops16h 10mMultiple Airlines
Deal found 22/12£846
Sun 29/1214:30LHR - SAN
1 stop29h 33mAir Canada
Fri 10/119:30SAN - LHR
2 stops27h 00mAir Canada
Deal found 22/12£850
Tue 24/1206:40LHR - SAN
2 stops25h 19mScandinavian Airlines
Tue 7/110:58SAN - LHR
3 stops26h 37mScandinavian Airlines
Deal found 21/12£1,095
Mon 23/1220:40LHR - SAN
2 stops33h 05mIcelandair
Wed 25/1208:30SAN - LHR
2 stops18h 20mIcelandair
Deal found 22/12£1,764

Find flights from Heathrow to San Diego within your budget

Customise 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 858,174 searches. Data last updated 22 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 14/1

14:50-11:45

1 stop28h 55m

San Diego

Sat 18/1

13:56-12:50

2 stops38h 54m

£527

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 6/1

18:00-14:57

2 stops28h 57m

San Diego

Sun 12/1

11:45-10:10

1 stop14h 25m

£535

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 11/1

10:15-22:08

1 stop19h 53m

San Diego

Mon 20/1

18:10-12:35

Nonstop10h 25m

£536

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 9/1

11:10-12:03

1 stop32h 53m

San Diego

Fri 17/1

19:30-07:10

2 stops27h 40m

£538

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 18/1

14:50-11:30

1 stop28h 40m

San Diego

Fri 31/1

12:35-12:50

1 stop16h 15m

£542

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 18/5

09:30-19:50

1 stop18h 20m

San Diego

Sun 25/5

07:10-06:45

1 stop15h 35m

£549

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 6/1

13:15-20:45

1 stop15h 30m

San Diego

Mon 20/1

17:45-16:40

1 stop14h 55m

£562

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 2/6

16:25-23:34

1 stop15h 09m

San Diego

Sat 14/6

17:00-14:40

1 stop13h 40m

£563

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 2/1

10:20-23:32

1 stop21h 12m

San Diego

Thu 1/5

06:20-12:15

1 stop21h 55m

£583

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 13/1

12:50-16:05

Nonstop11h 15m

San Diego

Thu 16/1

16:30-13:20

1 stop12h 50m

£601

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 32 results
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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 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.

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 return flight from Heathrow to San Diego. Price data was last updated on 20 December 2024.

The best time to book flights from London Heathrow Airport to San Diego is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Diego (average of £585). Flying from London Heathrow Airport 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 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 22 December 2024.

When flying from London Heathrow Airport to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 17% versus a flight in the afternoon.

What is the cheapest day to fly from London Heathrow Airport to San Diego?

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

Travellers seeking maximum savings on their London Heathrow Airport to San Diego flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

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 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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 22 December 2024.
Read through reviews of airlines operating flights from London to San Diego, such as Lufthansa, WestJet and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,594 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

8.0
Very Good
8,594 reviews
8.0
Very Good
8,594 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

7.8
Good
1,342 reviews
8.0
Very Good
8,594 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

7.7
Good
1,283 reviews
8.0
Very Good
8,594 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

7.6
Good
785 reviews
8.0
Very Good
8,594 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

7.5
Good
668 reviews
8.0
Very Good
8,594 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Food

7.3

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?

    San Diego (SAN) is the airport you will fly into if you book a flight from London Heathrow to San Diego. You should not have trouble finding flights to San Diego from London Heathrow; the airport handles an average of 5 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 12 airlines have flights to the San Diego airport from London Heathrow. It is only a 2.6 mi journey from San Diego (SAN) to San Diego’s city center.

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

    Flying on Lufthansa is currently your cheapest option to San Diego, with prices starting at £535. Additional return tickets that might be worth considering are offered by Iberia and Air Canada, with the lowest prices starting at £536 and £538, respectively. You may be able to fly from London Heathrow Airport to San Diego for 11% less than the average price by searching for these airlines.

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

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as £544. However, be on the lookout for offers from WestJet and Icelandair, 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?

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to San Diego consider choosing Aer Lingus (73%), Finnair (73%) or American Airlines (73%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for £509. While the most popular route (London Heathrow - San Diego) can be booked for £421 on average our data indicates £1,002 when flying from London Heathrow Airport to San Diego.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Diego (average of £585). Flying from London Heathrow Airport 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

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Fly from Heathrow to San Diego on these airlines

Choose from the following airlines for your flight from Heathrow to San Diego. Flights are based on user searches made on Cheapflights and were last updated on 22 December 2024.

Top 10 airlines flying from Heathrow to San Diego

Discover the top 10 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 858,174 searches. Data last updated 22 December 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£409Average£585FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapest£428Average£481FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£432Average£581FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£446Average£863FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£449Average£623FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£451Average£561FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£464Average£587FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£469Average£643FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£469Average£532FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapest£532Average£606FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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

When you search for this flight from Heathrow to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to San Diego.

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

Need flexible booking options for your flight to San Diego from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from Heathrow to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

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