Cheap flights from Heathrow to San Francisco

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How to find the cheapest flight from
Heathrow (LHR) to San Francisco (SFO)

All the information you need to plan the best LHR to SFO flight in 2022: compare Heathrow to San Francisco flight prices with the expected peak season, weather and rainfall in San Francisco.
LHR - SFO
Price
£391 - £737
SFO
Temperature
11 - 17 °C
SFO
Rainfall
0 - 112 mm

Popular in

July

High demand for flights, 34% potential price rise

Cheapest in

November

Best time to find cheap flights, 20% potential price drop

Round-trip from

£315

From London Heathrow to San Francisco

One-way from

£274

One-way flight from London Heathrow to San Francisco

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from London Heathrow Airport to San Francisco?

Travelers have found it’s best to book a flight 61 days in advance to save up to 41% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to San Francisco 1-2 weeks in advance for as low as £430, or £528 for flights within the next 24 hours.

What is the cheapest month to fly from London Heathrow Airport to San Francisco?

February is one of the best times of the year to fly to San Francisco from London Heathrow Airport. Prices for February average £392 per person but you can even find prices for as low as £287. The most expensive prices can be found in the month of July. Opting for a February flight can save you 51% on your journey compared to booking in July

When is the cheapest time to fly from London Heathrow Airport to San Francisco (LHR - SFO)?

When flying from London Heathrow Airport to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from Heathrow to San Francisco in May, June 2022

The best prices found for LHR to SFO flights in May, June
26 May - 2 Mar
£403pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
26 May - 2 Mar
£405pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
15 Jun - 20 Jul
£410pp
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Virgin Atlantic
Direct
LHR
London Heathrow

London Heathrow to San Francisco 2022 flight deals

Cheap flights to San Francisco from Heathrow found for this year
1 Nov - 15 Nov
£344pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
1 Nov - 15 Nov
£347pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
19 Nov - 3 Dec
£348pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow

Direct flights to San Francisco from Heathrow

Save time with Heathrow to San Francisco direct flight deals
1 Nov - 15 Nov
£377pp
LHR
London Heathrow
British Airways
Direct
SFO
San Francisco
SFO
San Francisco
British Airways
Direct
LHR
London Heathrow
24 Oct - 7 Nov
£404pp
LHR
London Heathrow
British Airways
Direct
SFO
San Francisco
SFO
San Francisco
British Airways
Direct
LHR
London Heathrow
19 Oct - 26 Oct
£414pp
LHR
London Heathrow
British Airways
Direct
SFO
San Francisco
SFO
San Francisco
British Airways
Direct
LHR
London Heathrow

Last-minute flights from Heathrow to San Francisco

Late deals on return flights to San Francisco from Heathrow, departing today and this week
26 May - 2 Mar
£403pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
26 May - 2 Mar
£405pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
26 May - 2 Mar
£412pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow

One-way flights to San Francisco from London Heathrow

The cheapest one-way flights from Heathrow to San Francisco
02:00 - 10:30
TAP AIR PORTUGAL
1 stop
16h 30m
LHR - SFO
TAP AIR PORTUGAL
£274
Travelgenio
15:50 - 10:30
TAP AIR PORTUGAL
1 stop
26h 40m
LHR - SFO
TAP AIR PORTUGAL
£275
Travelgenio
15:50 - 10:30
TAP AIR PORTUGAL
1 stop
26h 40m
LHR - SFO
TAP AIR PORTUGAL
£277
Travel2Be

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">San Francisco</span> flights.

Flight FAQs

From Heathrow to San Francisco

What airport do you fly into for flights to San Francisco from London Heathrow?

Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from London Heathrow. Booking flights from London Heathrow to San Francisco (SFO) should be relatively easy as there are 36 daily inbound flights from London Heathrow from 19 different airlines.

Which airlines flying from London Heathrow to San Francisco have flexible cancellations due to COVID-19?

Some of the carriers operating flights from London Heathrow to San Francisco that may be offering flexible cancellation policies are Virgin Atlantic, Lufthansa, and British Airways. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from London Heathrow Airport to San Francisco for under £400 on Cheapflights?

Yes, there are multiple flights from London Heathrow Airport to San Francisco for under £400. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £344, but on average you can expect to pay £371.

Are there nonstop flights from London Heathrow Airport to San Francisco for under £400 on Cheapflights?

Cheapflights has at least 20 direct flights from London Heathrow Airport to San Francisco under £400. A good price for a nonstop flight from London Heathrow Airport to San Francisco is less than £424.

Are there last-minute flights available from London Heathrow Airport to San Francisco for under £500?

There are currently 20+ open flights from London Heathrow Airport to San Francisco within the next 7 days for less than £500.

What are the cheapest airlines flying from London Heathrow Airport to San Francisco round-trip?

Cheapflights users have booked flights from London Heathrow Airport to San Francisco round-trip from £344. Other airlines that can offer you cheap pricing are Scandinavian Airlines, from £353, and British Airways, from £377. TAP AIR PORTUGAL is priced at 12% lower than the current average price of a flight leaving 3 months from now.

What are the most reliable airlines from London Heathrow Airport to San Francisco?

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 London Heathrow Airport to San Francisco on time: KLM (89%), Air France (89%), Delta (89%).

What are the cheapest flights from London Heathrow Airport to San Francisco?

The cheapest flight price from London Heathrow Airport to San Francisco is £351. On average you can expect to pay £2,177. The most popular route, (London Heathrow - San Francisco), can usually be booked for £344.

What are the most popular airlines that fly from London Heathrow Airport to San Francisco?

The most popular airlines flying from London Heathrow Airport to San Francisco are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

COVID Restrictions

View COVID Travel Restrictions for San Francisco, CA

Do I need a COVID test to fly to San Francisco from Heathrow?

Information is based on travel restrictions from London Heathrow to San Francisco

Most visitors from London Heathrow need to provide a negative COVID-19 test result and/or quarantine to enter San Francisco.

COVID-19 testing requirements
Visitors from London Heathrow must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to San Francisco.

Quarantine requirements
Visitors from London Heathrow are not required to quarantine after entering San Francisco.

Do I need a test to fly back to Heathrow from San Francisco?

Returning to London Heathrow from San Francisco

COVID-19 testing requirements
Visitors from San Francisco are not required to present a negative COVID-19 PCR test or antigen result upon entering London Heathrow.

Quarantine requirements
Visitors from San Francisco are not required to quarantine after entering London Heathrow.

Hide COVID Travel Restrictions for San Francisco, CA

Alternative routes for Heathrow to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Francisco

Things to know before you go - useful duration and weather info for your trip from Heathrow to San Francisco.
Today's exchange rate
£1 = $1.25
Flight duration from London Heathrow to SFO
10h 46m
Average temperature for May in San Francisco
21.0 °C
Avg rainfall for May in San Francisco
14.0 mm

Airports servicing London

Airports servicing San Francisco

Top 10 airlines flying from London Heathrow to San Francisco

The chart below displays the airlines Cheapflights users travelling from Heathrow to San Francisco choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
TAP AIR PORTUGAL
£276 £365 No cancel fee N/A
Search TAP AIR PORTUGAL flights
Norwegian Air UK
£310 £539 No cancel fee N/A
Search Norwegian Air UK flights
Lufthansa
£317 £504 No cancel fee 76%
Search Lufthansa flights
Delta
£319 £529 No cancel fee N/A
Search Delta flights
Finnair
£355 £498 No cancel fee 76%
Search Finnair flights
Virgin Atlantic
£356 £509 No cancel fee 72%
Search Virgin Atlantic flights
Iberia
£368 £469 No cancel fee 77%
Search Iberia flights
KLM
£371 £534 No cancel fee 75%
Search KLM flights
Air Canada
£372 £499 No cancel fee 67%
Search Air Canada flights
Scandinavian Airlines
£384 £442 No cancel fee 77%
Search Scandinavian Airlines flights

Hourly flight availability from Heathrow to San Francisco

See what time of day planes typically take off from Heathrow towards San Francisco.
Afternoon Midday to 6 PM 54% of flight departures
Morning 6 AM to midday 45% of flight departures
Early morning Midnight to 6 AM 1% of flight departures
Evening 6 PM to midnight 0% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Heathrow to San Francisco
See how many times per day planes take to the skies headed from Heathrow to San Francisco.
Sunday
37 daily flights
Monday
37 daily flights
Tuesday
32 daily flights
Wednesday
37 daily flights
Thursday
37 daily flights
Friday
37 daily flights
Saturday
37 daily flights
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