S$631 Cheap Flights from London to San Diego

View S$631 flight on Tue, 10 Mar, 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 S$631 for one-way flights and S$791 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, 9 Feb - Mon, 23 Feb
LHR
London
SAN
San Diego
S$791 Return, found 2 days ago
S$791
Return
found 2 days ago
Select American Airlines flight, departing Mon, 9 Feb from London to San Diego, returning Mon, 23 Feb, priced at S$791 found 2 days ago
American Airlines
Mon, 9 Feb - Mon, 23 Feb
LHR
London
SAN
San Diego
S$791 Return, found 2 days ago
S$791
Return
found 2 days ago
Select American Airlines flight, departing Mon, 9 Feb from London to San Diego, returning Mon, 23 Feb, priced at S$791 found 2 days ago
Virgin Atlantic
Tue, 13 Jan - Wed, 28 Jan
LHR
London
SAN
San Diego
S$797 Return, found 5 days ago
S$797
Return
found 5 days ago
Select Virgin Atlantic flight, departing Tue, 13 Jan from London to San Diego, returning Wed, 28 Jan, priced at S$797 found 5 days ago
Delta
Tue, 13 Jan - Wed, 28 Jan
LHR
London
SAN
San Diego
S$797 Return, found 5 days ago
S$797
Return
found 5 days ago
Select Delta flight, departing Tue, 13 Jan from London to San Diego, returning Wed, 28 Jan, priced at S$797 found 5 days ago
American Airlines
Mon, 9 Feb - Mon, 23 Feb
LHR
London
SAN
San Diego
S$798 Return, found 2 days ago
S$798
Return
found 2 days ago
Select American Airlines flight, departing Mon, 9 Feb from London to San Diego, returning Mon, 23 Feb, priced at S$798 found 2 days ago
United
Tue, 13 Jan - Wed, 28 Jan
LHR
London
SAN
San Diego
S$803 Return, found 5 days ago
S$803
Return
found 5 days ago
Select United flight, departing Tue, 13 Jan from London to San Diego, returning Wed, 28 Jan, priced at S$803 found 5 days ago
Air Canada
Tue, 13 Jan - Wed, 28 Jan
LHR
London
SAN
San Diego
S$808 Return, found 5 days ago
S$808
Return
found 5 days ago
Select Air Canada flight, departing Tue, 13 Jan from London to San Diego, returning Wed, 28 Jan, priced at S$808 found 5 days ago
Finnair
Mon, 9 Feb - Mon, 23 Feb
LHR
London
SAN
San Diego
S$809 Return, found 2 days ago
S$809
Return
found 2 days ago
Select Finnair flight, departing Mon, 9 Feb from London to San Diego, returning Mon, 23 Feb, priced at S$809 found 2 days ago
American Airlines
Mon, 9 Feb - Mon, 23 Feb
LHR
London
SAN
San Diego
S$813 Return, found 2 days ago
S$813
Return
found 2 days ago
Select American Airlines flight, departing Mon, 9 Feb from London to San Diego, returning Mon, 23 Feb, priced at S$813 found 2 days ago
Air Canada
Tue, 13 Jan - Wed, 28 Jan
LHR
London
SAN
San Diego
S$818 Return, found 5 days ago
S$818
Return
found 5 days ago
Select Air Canada flight, departing Tue, 13 Jan from London to San Diego, returning Wed, 28 Jan, priced at S$818 found 5 days ago

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

November is typically the cheapest month to fly

From S$690 - S$1,238 per traveller.

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 S$791. 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.

Travel information

Origin airport
Heathrow
Destination airport
San Diego Intl.
Return price
S$791
Distance
8756 km
Average flight time
11 hours 20 mins

Book with confidence

Perfect flights from London to San Diego

Your Journey from London to San Diego

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With Expedia, you have access to a wide range of airlines, including Lufthansa, American Airlines, Virgin Atlantic, United, Delta, KLM, Air Canada, Air France, British Airways, Finnair. Our selection of flights from Heathrow to San Diego Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

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Experience the joy of finding cheap flights from Heathrow to San Diego Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$631 and roundtrip prices from S$791*.
 

Pre-Flight Essentials

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*Note: Prices may vary based on availability and are subject to change.
Perfect flights from London to San Diego

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