€509 Cheap Flights London to San Diego (LHR-SAN)

View €509 flight on Thu, 29 Jan 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)

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Cheap flights from London to San Diego (LHR-SAN)

Prices were available within the past 7 days and start at €509 for one-way flights and €538 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Tue, 28 Oct - Tue, 4 Nov
LHR
London
SAN
San Diego
€538 Return, found 5 days ago
€538
Return
found 5 days ago
Select Lufthansa flight, departing Tue, 28 Oct from London to San Diego, returning Tue, 4 Nov, priced at €538 found 5 days ago
Lufthansa
Mon, 3 Nov - Mon, 10 Nov
LHR
London
SAN
San Diego
€543 Return, found 3 days ago
€543
Return
found 3 days ago
Select Lufthansa flight, departing Mon, 3 Nov from London to San Diego, returning Mon, 10 Nov, priced at €543 found 3 days ago
Lufthansa
Mon, 15 Sep - Mon, 29 Sep
LHR
London
SAN
San Diego
€546 Return, found 4 days ago
€546
Return
found 4 days ago
Select Lufthansa flight, departing Mon, 15 Sep from London to San Diego, returning Mon, 29 Sep, priced at €546 found 4 days ago
Brussels Airlines
Mon, 15 Sep - Mon, 29 Sep
LHR
London
SAN
San Diego
€570 Return, found 4 days ago
€570
Return
found 4 days ago
Select Brussels Airlines flight, departing Mon, 15 Sep from London to San Diego, returning Mon, 29 Sep, priced at €570 found 4 days ago
Austrian Airlines
Mon, 15 Sep - Mon, 29 Sep
LHR
London
SAN
San Diego
€570 Return, found 4 days ago
€570
Return
found 4 days ago
Select Austrian Airlines flight, departing Mon, 15 Sep from London to San Diego, returning Mon, 29 Sep, priced at €570 found 4 days ago
Air Canada
Tue, 28 Oct - Tue, 4 Nov
LHR
London
SAN
San Diego
€576 Return, found 5 days ago
€576
Return
found 5 days ago
Select Air Canada flight, departing Tue, 28 Oct from London to San Diego, returning Tue, 4 Nov, priced at €576 found 5 days ago
British Airways
Mon, 22 Sep - Mon, 6 Oct
LHR
London
SAN
San Diego
€606 Return, found 3 hours ago
€606
Return
found 3 hours ago
Select British Airways flight, departing Mon, 22 Sep from London to San Diego, returning Mon, 6 Oct, priced at €606 found 3 hours ago
British Airways
Mon, 15 Sep - Mon, 29 Sep
LHR
London
SAN
San Diego
€614 Return, found 4 days ago
€614
Return
found 4 days ago
Select British Airways flight, departing Mon, 15 Sep from London to San Diego, returning Mon, 29 Sep, priced at €614 found 4 days ago
United
Fri, 24 Apr - Fri, 1 May
LHR
London
SAN
San Diego
€626 Return, found 3 days ago
€626
Return
found 3 days ago
Select United flight, departing Fri, 24 Apr from London to San Diego, returning Fri, 1 May, priced at €626 found 3 days ago
American Airlines
Wed, 27 Aug - Wed, 10 Sep
LHR
London
SAN
San Diego
€635 Return, found 8 hours ago
€635
Return
found 8 hours ago
Select American Airlines flight, departing Wed, 27 Aug from London to San Diego, returning Wed, 10 Sep, priced at €635 found 8 hours ago

Find the cheapest month to fly from London (LHR) to San Diego (SAN)

November is typically the cheapest month to fly

From €456 - €945 per traveller.

Graph displaying average flight prices per month

London to San Diego route information
Origin airport
Heathrow
Destination airport
San Diego Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic, WestJet
Return price
€537
Distance
8756 km
Average flight time
3 hours 12 mins

Perfect flights from London to San Diego

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to San Diego. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of San Diego, surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Heathrow to San Diego Intl. ticket options cater to your travel preferences, with incredible one-way fares from €509 and roundtrip prices from €538. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at San Diego Intl. and explore San Diego and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your LHR to SAN travel arrangements today and embark on the journey of a lifetime in San Diego.

Frequently asked questions

How much is a flight from London Heathrow to SAN?
The lowest price advertised for a round-trip journey between LHR and San Diego Airport is €538. But you better act quick. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Heathrow Airport (LHR) to SAN?
This can differ from airline to airline, as each one has its own terms and conditions. Head to the Customer Service Portal, where you'll find simple instructions on how to cancel your flight online.
How do I find cheap flights from London Heathrow to SAN that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Heathrow Airport (LHR) to SAN flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Heathrow Airport to San Diego Intl. Airport (SAN)?
With a flight distance of 8,800 kilometres from London Heathrow (LHR) to San Diego Airport (SAN), this is a long-haul journey. Make sure you drink plenty of water and move your feet and legs every now and then.
Which airlines fly direct from Heathrow Airport to San Diego Intl. Airport (SAN)?
If you're eager to fly directly from LHR to San Diego Intl. Airport (SAN), British Airways (BA) is a great choice. It operates 30 flights each month between Hounslow and San Diego.
Are LHR to San Diego Intl. Airport (SAN) flight tickets cheaper when they're purchased at the last minute?
Flight tickets from Heathrow Airport to SAN are available up to a year before departure on Expedia. And although you may score a great last-minute deal, it's not something you should count on. Also, booking your flights well in advance means you'll have more options — and you can avoid ending up with the dreaded middle seat! We frequently update our fares to bring you the best bargains, so check back often for all the latest specials.

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