S$492 Cheap Flights from San Francisco to London

View S$492 flight on Sun, 27 Jul, 2025Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)

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Cheap Flights from San Francisco to London (SFO-LHR)

Prices were available within the past 7 days and start at S$492 for one-way flights and S$665 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Atlantic
Tue, 19 Aug - Tue, 2 Sep
SFO
San Francisco
LHR
London
S$665 Return, found 1 day ago
S$665
Return
found 1 day ago
Select Virgin Atlantic flight, departing Tue, 19 Aug from San Francisco to London, returning Tue, 2 Sep, priced at S$665 found 1 day ago
Delta
Fri, 22 Aug - Tue, 9 Sep
SFO
San Francisco
LHR
London
S$728 Return, found 20 hours ago
S$728
Return
found 20 hours ago
Select Delta flight, departing Fri, 22 Aug from San Francisco to London, returning Tue, 9 Sep, priced at S$728 found 20 hours ago
Delta
Tue, 15 Jul - Tue, 29 Jul
SFO
San Francisco
LHR
London
S$735 Return, found 1 day ago
S$735
Return
found 1 day ago
Select Delta flight, departing Tue, 15 Jul from San Francisco to London, returning Tue, 29 Jul, priced at S$735 found 1 day ago
Delta
Wed, 9 Jul - Tue, 22 Jul
SFO
San Francisco
LHR
London
S$737 Return, found 3 days ago
S$737
Return
found 3 days ago
Select Delta flight, departing Wed, 9 Jul from San Francisco to London, returning Tue, 22 Jul, priced at S$737 found 3 days ago
Delta
Wed, 16 Jul - Wed, 23 Jul
SFO
San Francisco
LHR
London
S$740 Return, found 4 days ago
S$740
Return
found 4 days ago
Select Delta flight, departing Wed, 16 Jul from San Francisco to London, returning Wed, 23 Jul, priced at S$740 found 4 days ago
KLM
Sun, 27 Jul - Fri, 8 Aug
SFO
San Francisco
LHR
London
S$770 Return, found 9 hours ago
S$770
Return
found 9 hours ago
Select KLM flight, departing Sun, 27 Jul from San Francisco to London, returning Fri, 8 Aug, priced at S$770 found 9 hours ago
United
Tue, 19 Aug - Tue, 2 Sep
SFO
San Francisco
LHR
London
S$804 Return, found 1 day ago
S$804
Return
found 1 day ago
Select United flight, departing Tue, 19 Aug from San Francisco to London, returning Tue, 2 Sep, priced at S$804 found 1 day ago
British Airways
Wed, 16 Jul - Fri, 20 Mar
SFO
San Francisco
LHR
London
S$811 Return, found 3 days ago
S$811
Return
found 3 days ago
Select British Airways flight, departing Wed, 16 Jul from San Francisco to London, returning Fri, 20 Mar, priced at S$811 found 3 days ago
Air Canada
Tue, 19 Aug - Tue, 2 Sep
SFO
San Francisco
LHR
London
S$828 Return, found 1 day ago
S$828
Return
found 1 day ago
Select Air Canada flight, departing Tue, 19 Aug from San Francisco to London, returning Tue, 2 Sep, priced at S$828 found 1 day ago
KLM
Tue, 19 Aug - Tue, 2 Sep
SFO
San Francisco
LHR
London
S$887 Return, found 1 day ago
S$887
Return
found 1 day ago
Select KLM flight, departing Tue, 19 Aug from San Francisco to London, returning Tue, 2 Sep, priced at S$887 found 1 day ago
San Francisco to London route information
Origin airport
San Francisco Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic, WestJet
Return price
S$665
Distance
8567 km
Average flight time
18 hours 22 mins

Perfect flights from San Francisco to London

Your Journey from San Francisco to London

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

Experience the joy of finding cheap flights from San Francisco 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$492 and roundtrip prices from S$665*.
 

Pre-Flight Essentials

Ensure a smooth journey from San Francisco 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 London. 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 Francisco 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 Francisco 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 Francisco 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 Francisco 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 Francisco Intl. Airport (SFO) to Heathrow Airport?
Round-trip tickets from San Francisco Intl. Airport (SFO) to London Heathrow start from S$665. This is based on fares offered within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP to avoid missing out. 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 Francisco Intl. Airport (SFO) to LHR?
Most flights can be cancelled online, but each air carrier has different terms and conditions. If you do have to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from SFO 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 Francisco Intl. Airport (SFO) to Heathrow Airport (LHR) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from SFO to LHR?
San Francisco to Hounslow is around 8,600 kilometres, so get ready to spend a while in the air. Don’t forget to pack all the essentials, from your headphones to your hoodie. Take some snacks to munch on throughout your flight too.
Which airlines fly direct from SFO to London Heathrow?
A popular airline that flies from SFO to LHR is United Airlines (UA). It offers 60 flights a month. After some more options? Check out the airfares with British Airways (BA). This carrier offers 60 monthly flights between these airports.
Are San Francisco Airport to Heathrow Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from San Francisco Intl. Airport (SFO) to London Heathrow can be hit-or-miss. You may be able to score a great bargain, but you could also miss out completely! If you’d prefer to play it safe and start planning your trip early on, Expedia compares flight deals up to a year in advance. Just remember that not all airlines advertise their prices so far in advance. Our advice? Check back often as updates are made frequently.

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