€195 Cheap Flights San Francisco to London (SFO-LHR)

View €195 flight on Wed, 22 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 €195 for one-way flights and €515 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Fri, 13 Mar - Mon, 16 Mar
SFO
San Francisco
LHR
London
€515 Return, found 3 days ago
€515
Return
found 3 days ago
Select Scandinavian Airlines flight, departing Fri, 13 Mar from San Francisco to London, returning Mon, 16 Mar, priced at €515 found 3 days ago
Aer Lingus
Sat, 18 Oct - Wed, 22 Oct
SFO
San Francisco
LHR
London
€534 Return, found 1 day ago
€534
Return
found 1 day ago
Select Aer Lingus flight, departing Sat, 18 Oct from San Francisco to London, returning Wed, 22 Oct, priced at €534 found 1 day ago
United
Sun, 28 Sept - Tue, 14 Oct
SFO
San Francisco
LHR
London
€540 Return, just found
€540
Return
just found
Select United flight, departing Sun, 28 Sept from San Francisco to London, returning Tue, 14 Oct, priced at €540 just found
British Airways
Sun, 28 Sept - Tue, 14 Oct
SFO
San Francisco
LHR
London
€540 Return, just found
€540
Return
just found
Select British Airways flight, departing Sun, 28 Sept from San Francisco to London, returning Tue, 14 Oct, priced at €540 just found
Swiss International Air Lines
Sun, 28 Sept - Tue, 14 Oct
SFO
San Francisco
LHR
London
€542 Return, just found
€542
Return
just found
Select Swiss International Air Lines flight, departing Sun, 28 Sept from San Francisco to London, returning Tue, 14 Oct, priced at €542 just found
American Airlines
Sun, 28 Sept - Tue, 14 Oct
SFO
San Francisco
LHR
London
€545 Return, just found
€545
Return
just found
Select American Airlines flight, departing Sun, 28 Sept from San Francisco to London, returning Tue, 14 Oct, priced at €545 just found
Virgin Atlantic
Mon, 29 Sept - Mon, 6 Oct
SFO
San Francisco
LHR
London
€553 Return, found 22 hours ago
€553
Return
found 22 hours ago
Select Virgin Atlantic flight, departing Mon, 29 Sept from San Francisco to London, returning Mon, 6 Oct, priced at €553 found 22 hours ago
Delta
Sun, 28 Sept - Tue, 14 Oct
SFO
San Francisco
LHR
London
€562 Return, just found
€562
Return
just found
Select Delta flight, departing Sun, 28 Sept from San Francisco to London, returning Tue, 14 Oct, priced at €562 just found
Iberia
Sun, 28 Sept - Tue, 14 Oct
SFO
San Francisco
LHR
London
€577 Return, just found
€577
Return
just found
Select Iberia flight, departing Sun, 28 Sept from San Francisco to London, returning Tue, 14 Oct, priced at €577 just found
KLM
Sun, 28 Sept - Tue, 14 Oct
SFO
San Francisco
LHR
London
€577 Return, just found
€577
Return
just found
Select KLM flight, departing Sun, 28 Sept from San Francisco to London, returning Tue, 14 Oct, priced at €577 just found

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

February is typically the cheapest month to fly

From €382 - €753 per traveller.
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, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic, WestJet
Return price
€515
Distance
8567 km
Average flight time
18 hours 21 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 London, 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 €195 and roundtrip prices from €515. 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 London 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 SFO to LHR 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 €515. 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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