Cheap flights from San Francisco to London Heathrow Airport from C$ 552
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
15 Oct — 22 Oct1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Francisco to London Heathrow are usually found in February or January, booked 35 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday
Cheap flight deals from San Francisco to Heathrow
Enter your travel dates to find the best prices.
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Cheapest flights from San Francisco to Heathrow
Explore the most affordable flight options available from San Francisco to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.
Tue 8/124:40 p.m. -
Nonstop10h 15m
Fri 8/19:05 a.m. -
1 stop18h 29m
Deal found 14/9C$ 1,063
Sun 6/124:40 p.m. -
Nonstop10h 15m
Thu 7/110:10 a.m. -
1 stop17h 24m
Deal found 14/9C$ 1,064
Tue 15/122:00 p.m. -
1 stop13h 20m
Wed 23/124:40 p.m. -
1 stop34h 55m
Deal found 14/9C$ 1,066
Thu 24/912:28 p.m. -
1 stop13h 42m
Mon 28/912:10 p.m. -
1 stop36h 05m
Deal found 15/9C$ 1,067
Fri 16/1012:55 p.m. -
Nonstop10h 30m
Tue 27/106:35 a.m. -
1 stop16h 15m
Deal found 15/9C$ 1,068
Sun 13/125:25 p.m. -
Nonstop10h 25m
Tue 16/311:45 a.m. -
Nonstop11h 10m
Deal found 14/9C$ 1,070
Sat 12/1211:59 p.m. -
1 stop22h 26m
Mon 18/15:35 p.m. -
1 stop27h 20m
Deal found 14/9C$ 1,072
Fri 2/1012:28 p.m. -
1 stop13h 42m
Thu 8/106:55 a.m. -
1 stop15h 35m
Deal found 14/9C$ 1,074
Thu 1/109:35 p.m. -
1 stop28h 35m
Tue 6/103:05 p.m. -
1 stop29h 06m
Deal found 15/9C$ 1,075
Thu 5/114:40 p.m. -
Nonstop10h 15m
Wed 11/116:30 a.m. -
1 stop13h 15m
Deal found 14/9C$ 1,077
Sun 6/124:40 p.m. -
Nonstop10h 15m
Tue 12/16:30 a.m. -
1 stop13h 15m
Deal found 14/9C$ 1,078
Wed 4/114:40 p.m. -
Nonstop10h 15m
Tue 24/116:30 a.m. -
1 stop13h 15m
Deal found 14/9C$ 1,081
Best flights from San Francisco to Heathrow
Discover carefully curated flight deals from San Francisco to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.
Sun 6/122:55 p.m. -
1 stop12h 40m
Fri 8/14:35 p.m. -
1 stop16h 52m
Deal found 14/9C$ 1,064
Fri 25/912:35 p.m. -
1 stop13h 05m
Fri 6/1111:10 a.m. -
1 stop16h 25m
Deal found 11/9C$ 1,191
Wed 10/22:12 p.m. -
1 stop14h 08m
Thu 11/22:45 p.m. -
1 stop15h 24m
Deal found 14/9C$ 1,246
Thu 8/104:45 p.m. -
2 stops19h 10m
Mon 12/109:05 p.m. -
2 stops25h 35m
Deal found 13/9C$ 1,559
Wed 23/128:14 a.m. -
1 stop14h 41m
Thu 14/112:20 p.m. -
1 stop18h 05m
Deal found 13/9C$ 1,767
Fri 25/95:00 a.m. -
1 stop17h 45m
Mon 2/119:00 a.m. -
1 stop15h 30m
Deal found 11/9C$ 1,191
Wed 18/114:40 p.m. -
Nonstop10h 15m
Fri 27/116:30 a.m. -
1 stop13h 15m
Deal found 12/9C$ 1,234
Fri 25/97:00 a.m. -
1 stop24h 05m
Wed 4/112:45 p.m. -
1 stop14h 58m
Deal found 11/9C$ 1,357
Wed 18/1112:50 p.m. -
Nonstop10h 35m
Sat 28/112:30 p.m. -
1 stop31h 21m
Deal found 12/9C$ 1,404
Fri 25/912:55 p.m. -
Nonstop10h 30m
Wed 30/910:35 a.m. -
Nonstop11h 00m
Deal found 12/9C$ 1,553
Fri 25/910:29 a.m. -
2 stops21h 31m
Sun 27/910:20 a.m. -
2 stops19h 14m
Deal found 10/9C$ 2,085
Sun 1/1112:50 p.m. -
Nonstop10h 35m
Thu 5/111:45 p.m. -
Nonstop11h 10m
Deal found 13/9C$ 2,056
Direct flights from San Francisco to Heathrow
Explore direct flight options from San Francisco to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2026.
Sun 13/125:25 p.m. -
Nonstop10h 25m
Thu 14/13:20 p.m. -
Nonstop11h 25m
Deal found 14/9C$ 1,068
Sun 13/125:25 p.m. -
Nonstop10h 25m
Tue 16/311:45 a.m. -
Nonstop11h 10m
Deal found 14/9C$ 1,070
Sun 6/124:40 p.m. -
Nonstop10h 15m
Mon 11/111:50 a.m. -
Nonstop11h 00m
Deal found 14/9C$ 1,084
Thu 1/104:40 p.m. -
Nonstop10h 30m
Thu 15/1010:35 a.m. -
Nonstop11h 00m
Deal found 15/9C$ 1,085
Fri 16/105:55 p.m. -
Nonstop10h 20m
Thu 22/1012:45 p.m. -
Nonstop11h 10m
Deal found 14/9C$ 1,086
Thu 10/128:35 p.m. -
Nonstop10h 35m
Thu 14/111:45 a.m. -
Nonstop11h 10m
Deal found 14/9C$ 1,096
Fri 5/25:25 p.m. -
Nonstop10h 25m
Fri 19/211:45 a.m. -
Nonstop11h 10m
Deal found 14/9C$ 1,097
Mon 14/128:35 p.m. -
Nonstop10h 35m
Thu 7/111:45 a.m. -
Nonstop11h 10m
Deal found 12/9C$ 1,111
Sun 1/118:35 p.m. -
Nonstop10h 35m
Fri 13/1111:45 a.m. -
Nonstop11h 10m
Deal found 14/9C$ 1,118
Tue 24/1112:50 p.m. -
Nonstop10h 35m
Fri 4/1210:05 a.m. -
Nonstop11h 15m
Deal found 14/9C$ 1,120
Thu 26/1112:50 p.m. -
Nonstop10h 35m
Wed 2/121:45 p.m. -
Nonstop11h 10m
Deal found 14/9C$ 1,127
Sun 13/128:35 p.m. -
Nonstop10h 35m
Mon 18/13:20 p.m. -
Nonstop11h 25m
Deal found 14/9C$ 1,138
Last-minute flights from San Francisco to Heathrow
Discover last-minute flight deals from San Francisco to Heathrow. Data last updated 15 September 2026 and is based on user searches.
Mon 21/94:40 p.m. -
Nonstop10h 30m
Sun 27/99:30 a.m. -
1 stop19h 17m
Deal found 14/9C$ 1,091
Thu 24/912:28 p.m. -
1 stop13h 42m
Mon 28/912:10 p.m. -
1 stop36h 05m
Deal found 15/9C$ 1,067
Thu 24/94:40 p.m. -
Nonstop10h 30m
Mon 28/95:15 p.m. -
1 stop31h 00m
Deal found 15/9C$ 1,093
Thu 1/109:35 p.m. -
1 stop28h 35m
Tue 6/103:05 p.m. -
1 stop29h 06m
Deal found 15/9C$ 1,075
Thu 1/104:40 p.m. -
Nonstop10h 30m
Thu 15/1010:35 a.m. -
Nonstop11h 00m
Deal found 15/9C$ 1,085
Fri 2/1012:28 p.m. -
1 stop13h 42m
Thu 8/106:55 a.m. -
1 stop15h 35m
Deal found 14/9C$ 1,074
Fri 2/1012:02 p.m. -
1 stop17h 03m
Fri 9/1012:45 p.m. -
Nonstop11h 10m
Deal found 15/9C$ 1,089
Fri 2/105:38 p.m. -
1 stop13h 57m
Fri 9/1012:45 p.m. -
Nonstop11h 10m
Deal found 14/9C$ 1,092
Wed 7/105:55 p.m. -
Nonstop10h 20m
Mon 19/106:30 a.m. -
1 stop13h 15m
Deal found 14/9C$ 1,077
Thu 15/1012:55 p.m. -
Nonstop10h 30m
Mon 26/104:40 p.m. -
1 stop34h 55m
Deal found 15/9C$ 1,082
Thu 15/108:10 a.m. -
1 stop17h 50m
Mon 16/114:40 p.m. -
1 stop34h 55m
Deal found 14/9C$ 1,086
Fri 16/1012:55 p.m. -
Nonstop10h 30m
Tue 27/106:35 a.m. -
1 stop16h 15m
Deal found 15/9C$ 1,068
One-way flights from San Francisco to Heathrow
Search for one-way flight options from San Francisco to Heathrow. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.
Sun 27/127:25 p.m. -
2 stops18h 00m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 552
Fri 13/119:43 a.m. -
2 stops21h 57m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 553
Sat 14/119:43 a.m. -
2 stops21h 57m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 554
Thu 24/126:30 a.m. -
1 stop21h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 12/9C$ 577
Sun 3/17:25 p.m. -
2 stops18h 00m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 13/9C$ 586
Wed 23/127:52 p.m. -
2 stops27h 18m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 588
Wed 16/122:00 p.m. -
1 stop13h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/9C$ 593
Thu 15/1010:21 a.m. -
2 stops21h 19m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 608
Fri 25/98:29 p.m. -
1 stop16h 16m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 610
Fri 1/17:00 a.m. -
2 stops18h 40m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 611
Mon 21/125:45 a.m. -
1 stop17h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 13/9C$ 628
Find flight deals from San Francisco to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 September 2026.
Customize your flight search to find flights from San Francisco to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 15 September 2026.
Use the filters below to find and compare flights from San Francisco to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
San FranciscoLondon
SFO San Francisco - LHR London Heathrow
SFOLHR
San Francisco
Fri 13/11
9:43 a.m.-3:40 p.m.
2 stops21h 57m
London Heathrow
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 553
San FranciscoLondon
SFO San Francisco - LHR London Heathrow
SFOLHR
San Francisco
Wed 23/12
4:55 p.m.-11:50 a.m.
1 stop34h 55m
London Heathrow
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 577
San FranciscoLondon
SFO San Francisco - LHR London Heathrow
SFOLHR
San Francisco
Wed 16/12
2:00 p.m.-11:20 a.m.
1 stop13h 20m
London Heathrow
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 593
Quickest round-trip
San FranciscoLondon
SFO San Francisco - LHR London Heathrow
SFOLHR
San Francisco
Wed 28/10
5:40 p.m.-10:55 a.m.
Nonstop10h 15m
London Heathrow
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 636
San FranciscoLondon
SFO San Francisco - LHR London Heathrow
SFOLHR
San Francisco
Wed 21/10
5:55 p.m.-12:15 p.m.
Nonstop10h 20m
London Heathrow
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 638
San FranciscoLondon
SFO San Francisco - LHR London Heathrow
SFOLHR
San Francisco
Wed 11/11
4:40 p.m.-10:55 a.m.
Nonstop10h 15m
London Heathrow
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 638
San FranciscoLondon
SFO San Francisco - LHR London Heathrow
SFOLHR
San Francisco
Mon 12/10
5:55 p.m.-12:15 p.m.
Nonstop10h 20m
London Heathrow
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 638
San FranciscoLondon
SFO San Francisco - LHR London Heathrow
SFOLHR
San Francisco
Mon 19/10
5:55 p.m.-12:15 p.m.
Nonstop10h 20m
London Heathrow
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 638
San FranciscoLondon
SFO San Francisco - LHR London Heathrow
SFOLHR
San Francisco
Sun 11/10
7:45 p.m.-2:10 p.m.
Nonstop10h 25m
London Heathrow
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 638
San FranciscoLondon
SFO San Francisco - LHR London Heathrow
SFOLHR
San Francisco
Sun 15/11
4:40 p.m.-11:15 a.m.
Nonstop10h 35m
London Heathrow
Wed 31/12
12:00 a.m.-3:00 p.m.
Nonstop0h 00m
C$ 638
Flights are sorted by cheapest round-trip flights first.
Deals found on 14/9
Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from San Francisco to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Francisco with our price prediction graph.
SFO-LHR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to London Heathrow Airport
Prices
Airlines
Delays
How far ahead should I book a flight from San Francisco to London Heathrow Airport?
The price you pay for your flight from San Francisco to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 34 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Francisco to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from San Francisco to London Heathrow Airport (average of C$ 906). Flying from San Francisco to London Heathrow Airport in June is currently the most expensive (average of C$ 1,848). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SFO to LHR?
Find hourly flight availability from San Francisco to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 September 2026.
A simple way to save on the total cost of your ticket is to fly from San Francisco to London Heathrow Airport in the morning. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the afternoon.
How much does it cost to fly round-trip from San Francisco to London Heathrow Airport?
Airfare is below average for this route at the moment.
San Francisco to London Heathrow Airport flights typically cost between C$ 1,039 and C$ 1,561 in January.The cheapest round-trip price found within the last 5 days was C$ 1,004 on United Airlines (13 Jan-27 Jan).
Weekly flight availability from San Francisco to London Heathrow Airport
Explore weekly flight availability from San Francisco to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 September 2026.
The most flights from SFO to LHR are scheduled on a Monday (38 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (38 on average).
How often are flights from San Francisco to London delayed?
About 11% of weekly flights between San Francisco and London have experienced delays in the past year, with the average delay time being 157 minutes.
What is the most punctual flight time for San Francisco to London flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Francisco to London flights?
Over the past year, British Airways has had the lowest number of delays on this route, with just 8% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from San Francisco to London Heathrow?
San Francisco (SFO) is the airport you will fly out of if you book a flight from San Francisco to London Heathrow. You should not have trouble finding flights to London Heathrow from San Francisco; the airport handles an average of 38 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the San Francisco airport to London Heathrow. It is only a 17.7 km journey to San Francisco (SFO) from San Francisco’s city centre.
How long is the flight from San Francisco to London Heathrow Airport?
Departing from San Francisco to London Heathrow Airport will take you 12h 40m. The distance from San Francisco to London Heathrow Airport is about 8610 km. Both multi-stop and direct flights can be found to your destination and back.
What are the most reliable airlines from San Francisco to London Heathrow Airport?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to London Heathrow Airport on time: Air Canada (86%), Austrian Airlines (86%), United Airlines (86%).
Can I find deals for flights from San Francisco to Heathrow that include hotel bookings?
Yes. In addition to deals on San Francisco to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Francisco to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Heathrow.
Can I find deals for business class flights from San Francisco to Heathrow?
Yes. Cheapflights offers flight deals from San Francisco to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Francisco to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from San Francisco to London Heathrow Airport (average of C$ 906). Flying from San Francisco to London Heathrow Airport in June is currently the most expensive (average of C$ 1,848). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from San Francisco to Heathrow?
Cheapflights makes it easy to find San Francisco to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from San Francisco to Heathrow?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from San Francisco.
Can Cheapflights find flights from San Francisco to Heathrow with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from San Francisco to Heathrow, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from San Francisco to Heathrow become cheaper?
Yes, Cheapflights offers price alerts on San Francisco to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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