S$751 Cheap Flights from London to San Diego

View S$751 flight on Sun, 30 Nov, 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at S$751 for one-way flights and S$910 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, 7 Oct - Fri, 17 Oct
LHR
London
SAN
San Diego
S$910 Return, found 4 days ago
S$910
Return
found 4 days ago
Select Air Canada flight, departing Tue, 7 Oct from London to San Diego, returning Fri, 17 Oct, priced at S$910 found 4 days ago
Lufthansa
Wed, 8 Oct - Sun, 12 Oct
LHR
London
SAN
San Diego
S$915 Return, found 1 day ago
S$915
Return
found 1 day ago
Select Lufthansa flight, departing Wed, 8 Oct from London to San Diego, returning Sun, 12 Oct, priced at S$915 found 1 day ago
Air Canada
Tue, 7 Oct - Fri, 17 Oct
LHR
London
SAN
San Diego
S$918 Return, found 4 days ago
S$918
Return
found 4 days ago
Select Air Canada flight, departing Tue, 7 Oct from London to San Diego, returning Fri, 17 Oct, priced at S$918 found 4 days ago
Lufthansa
Wed, 8 Oct - Sun, 12 Oct
LHR
London
SAN
San Diego
S$924 Return, found 1 day ago
S$924
Return
found 1 day ago
Select Lufthansa flight, departing Wed, 8 Oct from London to San Diego, returning Sun, 12 Oct, priced at S$924 found 1 day ago
Lufthansa
Tue, 7 Oct - Fri, 17 Oct
LHR
London
SAN
San Diego
S$924 Return, found 4 days ago
S$924
Return
found 4 days ago
Select Lufthansa flight, departing Tue, 7 Oct from London to San Diego, returning Fri, 17 Oct, priced at S$924 found 4 days ago
Lufthansa
Wed, 8 Oct - Sun, 12 Oct
LHR
London
SAN
San Diego
S$948 Return, found 1 day ago
S$948
Return
found 1 day ago
Select Lufthansa flight, departing Wed, 8 Oct from London to San Diego, returning Sun, 12 Oct, priced at S$948 found 1 day ago
Lufthansa
Wed, 8 Oct - Sun, 12 Oct
LHR
London
SAN
San Diego
S$956 Return, found 1 day ago
S$956
Return
found 1 day ago
Select Lufthansa flight, departing Wed, 8 Oct from London to San Diego, returning Sun, 12 Oct, priced at S$956 found 1 day ago
American Airlines
Wed, 8 Oct - Sun, 12 Oct
LHR
London
SAN
San Diego
S$964 Return, found 1 day ago
S$964
Return
found 1 day ago
Select American Airlines flight, departing Wed, 8 Oct from London to San Diego, returning Sun, 12 Oct, priced at S$964 found 1 day ago
Delta
Wed, 8 Oct - Sun, 12 Oct
LHR
London
SAN
San Diego
S$964 Return, found 1 day ago
S$964
Return
found 1 day ago
Select Delta flight, departing Wed, 8 Oct from London to San Diego, returning Sun, 12 Oct, priced at S$964 found 1 day ago
United
Wed, 8 Oct - Sun, 12 Oct
LHR
London
SAN
San Diego
S$964 Return, found 1 day ago
S$964
Return
found 1 day ago
Select United flight, departing Wed, 8 Oct from London to San Diego, returning Sun, 12 Oct, priced at S$964 found 1 day ago

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

November is typically the cheapest month to fly

From S$685 - S$1,413 per traveller.

Graph displaying average flight prices per month

London to San Diego route information
Origin airport
Heathrow
Destination airport
San Diego Intl.
Return price
S$910
Distance
8756 km
Average flight time
3 hours 12 mins

Perfect flights from London to San Diego

Your Journey from London to San Diego

Start your unforgettable journey with Expedia. Our broad selection of flights from London to San Diego caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including WestJet, Air Canada, Lufthansa, American Airlines, Delta, United, Austrian Airlines. 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.
 

Maximizing Value with London to San Diego Flights

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$751 and roundtrip prices from S$910*.
 

Pre-Flight Essentials

Ensure a smooth journey from London to San Diego with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant San Diego

Picture yourself stepping off the plane in San Diego and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your London to San Diego Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from London to San Diego.
 

Beyond the Flight – Exploring San Diego

With Expedia, your adventure extends beyond the flight. Explore San Diego at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from London to San Diego with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from London to San Diego with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

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$910. 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.

Explore a world of travel with Expedia

*Available to Expedia members.