€196 Cheap Flights San Francisco to London (SFO-LHR)

View €196 flight on Thu, 23 Oct 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 €196 for one-way flights and €510 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, 3 Dec - Wed, 10 Dec
SFO
San Francisco
LHR
London
€510 Return, found 2 days ago
€510
Return
found 2 days ago
Select Aer Lingus flight, departing Wed, 3 Dec from San Francisco to London, returning Wed, 10 Dec, priced at €510 found 2 days ago
Scandinavian Airlines
Fri, 7 Nov - Mon, 10 Nov
SFO
San Francisco
LHR
London
€520 Return, found 2 days ago
€520
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Fri, 7 Nov from San Francisco to London, returning Mon, 10 Nov, priced at €520 found 2 days ago
American Airlines
Wed, 24 Sep - Wed, 15 Oct
SFO
San Francisco
LHR
London
€544 Return, just found
€544
Return
just found
Select American Airlines flight, departing Wed, 24 Sep from San Francisco to London, returning Wed, 15 Oct, priced at €544 just found
United
Sat, 27 Sep - Tue, 14 Oct
SFO
San Francisco
LHR
London
€545 Return, found 6 days ago
€545
Return
found 6 days ago
Select United flight, departing Sat, 27 Sep from San Francisco to London, returning Tue, 14 Oct, priced at €545 found 6 days ago
British Airways
Wed, 1 Oct - Thu, 9 Oct
SFO
San Francisco
LHR
London
€547 Return, found 2 days ago
€547
Return
found 2 days ago
Select British Airways flight, departing Wed, 1 Oct from San Francisco to London, returning Thu, 9 Oct, priced at €547 found 2 days ago
Virgin Atlantic
Mon, 1 Sep - Tue, 16 Sep
SFO
San Francisco
LHR
London
€547 Return, found 1 day ago
€547
Return
found 1 day ago
Select Virgin Atlantic flight, departing Mon, 1 Sep from San Francisco to London, returning Tue, 16 Sep, priced at €547 found 1 day ago
Iberia
Wed, 3 Dec - Wed, 10 Dec
SFO
San Francisco
LHR
London
€547 Return, found 2 days ago
€547
Return
found 2 days ago
Select Iberia flight, departing Wed, 3 Dec from San Francisco to London, returning Wed, 10 Dec, priced at €547 found 2 days ago
Swiss International Air Lines
Wed, 1 Oct - Thu, 9 Oct
SFO
San Francisco
LHR
London
€548 Return, found 2 days ago
€548
Return
found 2 days ago
Select Swiss International Air Lines flight, departing Wed, 1 Oct from San Francisco to London, returning Thu, 9 Oct, priced at €548 found 2 days ago
Lufthansa
Wed, 3 Dec - Wed, 10 Dec
SFO
San Francisco
LHR
London
€559 Return, found 2 days ago
€559
Return
found 2 days ago
Select Lufthansa flight, departing Wed, 3 Dec from San Francisco to London, returning Wed, 10 Dec, priced at €559 found 2 days ago
Delta
Wed, 24 Sep - Wed, 15 Oct
SFO
San Francisco
LHR
London
€561 Return, just found
€561
Return
just found
Select Delta flight, departing Wed, 24 Sep from San Francisco to London, returning Wed, 15 Oct, priced at €561 just found

Find the cheapest month to fly from San Francisco (SFO) to London (LHR)

February is typically the cheapest month to fly

From €384 - €758 per traveller.

Graph displaying average flight prices per month

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, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, WestJet
Return price
€510
Distance
8567 km
Average flight time
18 hours 22 mins

Perfect flights from San Francisco to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from San Francisco to London. 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 , 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 San Francisco Intl. to Heathrow ticket options cater to your travel preferences, with incredible one-way fares from €196 and roundtrip prices from €510. 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 Heathrow and explore 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 to travel arrangements today and embark on the journey of a lifetime in London.

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 €510. 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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