₩504,300 Cheap Flights from San Francisco (SFO) to London (LHR)

View ₩504,300 flight on Wed, May 13, 2026Opens 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 ₩504,300 for one-way flights and ₩905,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, Jan 9 - Thu, Jan 22
SFO
San Francisco
LHR
London
₩905,200 Roundtrip, found 5 days ago
₩905,200
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Jan 9 from San Francisco to London, returning Thu, Jan 22, priced at ₩905,200 found 5 days ago
Air Canada
Fri, Jan 9 - Thu, Jan 22
SFO
San Francisco
LHR
London
₩913,200 Roundtrip, found 5 days ago
₩913,200
Roundtrip
found 5 days ago
Select Air Canada flight, departing Fri, Jan 9 from San Francisco to London, returning Thu, Jan 22, priced at ₩913,200 found 5 days ago
Delta
Fri, Jan 9 - Thu, Jan 22
SFO
San Francisco
LHR
London
₩914,200 Roundtrip, found 5 days ago
₩914,200
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Jan 9 from San Francisco to London, returning Thu, Jan 22, priced at ₩914,200 found 5 days ago
United
Fri, Jan 9 - Thu, Jan 22
SFO
San Francisco
LHR
London
₩915,200 Roundtrip, found 5 days ago
₩915,200
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 9 from San Francisco to London, returning Thu, Jan 22, priced at ₩915,200 found 5 days ago
Air Canada
Fri, Jan 9 - Thu, Jan 22
SFO
San Francisco
LHR
London
₩915,500 Roundtrip, found 5 days ago
₩915,500
Roundtrip
found 5 days ago
Select Air Canada flight, departing Fri, Jan 9 from San Francisco to London, returning Thu, Jan 22, priced at ₩915,500 found 5 days ago
Delta
Fri, Jan 9 - Thu, Jan 22
SFO
San Francisco
LHR
London
₩922,200 Roundtrip, found 5 days ago
₩922,200
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Jan 9 from San Francisco to London, returning Thu, Jan 22, priced at ₩922,200 found 5 days ago
United
Fri, Jan 9 - Thu, Jan 22
SFO
San Francisco
LHR
London
₩931,200 Roundtrip, found 5 days ago
₩931,200
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 9 from San Francisco to London, returning Thu, Jan 22, priced at ₩931,200 found 5 days ago
Delta
Fri, Jan 9 - Thu, Jan 22
SFO
San Francisco
LHR
London
₩942,200 Roundtrip, found 5 days ago
₩942,200
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Jan 9 from San Francisco to London, returning Thu, Jan 22, priced at ₩942,200 found 5 days ago
Swiss International Air Lines
Fri, Jan 9 - Thu, Jan 22
SFO
San Francisco
LHR
London
₩953,100 Roundtrip, found 5 days ago
₩953,100
Roundtrip
found 5 days ago
Select Swiss International Air Lines flight, departing Fri, Jan 9 from San Francisco to London, returning Thu, Jan 22, priced at ₩953,100 found 5 days ago
British Airways
Fri, Jan 9 - Thu, Jan 22
SFO
San Francisco
LHR
London
₩954,000 Roundtrip, found 5 days ago
₩954,000
Roundtrip
found 5 days ago
Select British Airways flight, departing Fri, Jan 9 from San Francisco to London, returning Thu, Jan 22, priced at ₩954,000 found 5 days ago

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

January is typically the cheapest month to fly

From ₩628,467 - ₩1,334,283 per traveler.

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 ₩905,200. 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 canceled 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 kilometers, 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.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Heathrow
Roundtrip price
₩905,200
Distance
8567 km
Average flight time
18 hours 21 mins

Book with confidence

San Francisco to London Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from San Francisco to London will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring London.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SFO to LHR flights that won’t make your bank account wince. Ready to temporarily leave behind San Francisco for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to LHR with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

San Francisco to London Flights

Explore a world of travel with Expedia

London nearby Airports

London

San Francisco to Gatwick
₩16,730,900
*Available to Expedia members.