S$556 Cheap Flights from San Diego to London

View S$556 flight on Sun, 23 Nov, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at S$556 for one-way flights and S$774 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 10 Sep - Thu, 18 Sep
SAN
San Diego
LHR
London
S$774 Return, found 3 days ago
S$774
Return
found 3 days ago
Select Delta flight, departing Wed, 10 Sep from San Diego to London, returning Thu, 18 Sep, priced at S$774 found 3 days ago
Delta
Wed, 10 Sep - Thu, 18 Sep
SAN
San Diego
LHR
London
S$781 Return, found 3 days ago
S$781
Return
found 3 days ago
Select Delta flight, departing Wed, 10 Sep from San Diego to London, returning Thu, 18 Sep, priced at S$781 found 3 days ago
Delta
Wed, 10 Sep - Thu, 18 Sep
SAN
San Diego
LHR
London
S$789 Return, found 3 days ago
S$789
Return
found 3 days ago
Select Delta flight, departing Wed, 10 Sep from San Diego to London, returning Thu, 18 Sep, priced at S$789 found 3 days ago
Delta
Thu, 11 Sep - Thu, 18 Sep
SAN
San Diego
LHR
London
S$804 Return, found 4 days ago
S$804
Return
found 4 days ago
Select Delta flight, departing Thu, 11 Sep from San Diego to London, returning Thu, 18 Sep, priced at S$804 found 4 days ago
Delta
Wed, 10 Sep - Thu, 18 Sep
SAN
San Diego
LHR
London
S$804 Return, found 3 days ago
S$804
Return
found 3 days ago
Select Delta flight, departing Wed, 10 Sep from San Diego to London, returning Thu, 18 Sep, priced at S$804 found 3 days ago
Delta
Wed, 10 Sep - Thu, 18 Sep
SAN
San Diego
LHR
London
S$812 Return, found 3 days ago
S$812
Return
found 3 days ago
Select Delta flight, departing Wed, 10 Sep from San Diego to London, returning Thu, 18 Sep, priced at S$812 found 3 days ago
Virgin Atlantic
Wed, 10 Sep - Thu, 18 Sep
SAN
San Diego
LHR
London
S$825 Return, found 3 days ago
S$825
Return
found 3 days ago
Select Virgin Atlantic flight, departing Wed, 10 Sep from San Diego to London, returning Thu, 18 Sep, priced at S$825 found 3 days ago
United
Wed, 10 Sep - Thu, 18 Sep
SAN
San Diego
LHR
London
S$851 Return, found 3 days ago
S$851
Return
found 3 days ago
Select United flight, departing Wed, 10 Sep from San Diego to London, returning Thu, 18 Sep, priced at S$851 found 3 days ago
Air France
Wed, 10 Sep - Thu, 18 Sep
SAN
San Diego
LHR
London
S$851 Return, found 3 days ago
S$851
Return
found 3 days ago
Select Air France flight, departing Wed, 10 Sep from San Diego to London, returning Thu, 18 Sep, priced at S$851 found 3 days ago
KLM
Thu, 11 Sep - Thu, 18 Sep
SAN
San Diego
LHR
London
S$878 Return, found 4 days ago
S$878
Return
found 4 days ago
Select KLM flight, departing Thu, 11 Sep from San Diego to London, returning Thu, 18 Sep, priced at S$878 found 4 days ago

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

October is typically the cheapest month to fly

From S$691 - S$1,059 per traveller.

Graph displaying average flight prices per month

San Diego to London route information
Origin airport
San Diego Intl.
Destination airport
Heathrow
Return price
S$773
Distance
8756 km
Average flight time
18 hours 37 mins

Perfect flights from San Diego to London

Your Journey from San Diego to London

Start your unforgettable journey with Expedia. Our broad selection of flights from San Diego to London 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 Virgin Atlantic, United, Air Canada, Delta, British Airways, Air France, KLM. Our selection of flights from San Diego Intl. to Heathrow 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 San Diego to London Flights

Experience the joy of finding cheap flights from San Diego Intl. to Heathrow that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$556 and roundtrip prices from S$774*.
 

Pre-Flight Essentials

Ensure a smooth journey from San Diego to London 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 London

Picture yourself stepping off the plane in London 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 San Diego to London 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 San Diego to London.
 

Beyond the Flight – Exploring London

With Expedia, your adventure extends beyond the flight. Explore London 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 San Diego to London 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 San Diego to London 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 SAN to Heathrow Airport?
Start packing your suitcase, because round-trip journeys between San Diego Intl. Airport (SAN) and Heathrow Airport (LHR) start from S$774. That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book today to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Diego Intl. Airport (SAN) to Heathrow Airport?
Each airline has different terms and conditions. If you decide to cancel your escape, head to our Customer Service Portal.
How do I find cheap flights from San Diego Airport to London Heathrow 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 San Diego Airport to London Heathrow flights, you'll see a "no change fees" filter for you to select.
How far is the flight from San Diego Airport to LHR?
San Diego to Hounslow is around 8,800 kilometres, so get ready to spend quite a while in the air. Make sure you pack all the essentials, from your hoodie to your headphones. Toss in a couple of snacks to munch on throughout your flight too.
Which airlines fly direct from San Diego Airport to Heathrow Airport (LHR)?
A popular option with many frequent travellers, British Airways (BA) operates 30 monthly flights from San Diego Airport to London Heathrow. Pick the one that fits with your travel schedule and book your ticket today.
Are San Diego Airport to Heathrow Airport (LHR) flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally find a bargain, with some of the cheapest airfares from San Diego Airport to London Heathrow popping up a few weeks before the date of departure. If you'd rather book ahead, Expedia compares and updates the best flight deals continuously — as early as a year in advance in some cases. It depends on the carrier though, as not every airline advertises prices so far in advance.

Explore a world of travel with Expedia

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