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Cheap flights from San Francisco (SFO) to Heathrow (LHR)

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The best prices from San Francisco to Heathrow are usually found in October or November, booked 60 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

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

SFO - LHR
Price
$445 - $872
LHR
Temperature
46.4 - 75.2 °F
LHR
Rainfall
1.5 - 2.6 inches

Popular in

June

High demand for flights, 33% potential price rise

Cheapest in

October

Best time to find cheap flights, 24% potential price drop

Round-trip from

$445

From San Francisco to Heathrow

One-way from

$154

One-way flight from San Francisco to Heathrow

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from San Francisco to Heathrow?

Travelers have found that booking a Monday departure is the best way to save up to 13% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from San Francisco to Heathrow?

To save on the cost of your flight from San Francisco to Heathrow, book at least 51 days before your planned departure. Booking around this time can save you about 38% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $813 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $886.

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

February can be a great time to fly to Heathrow from San Francisco with a flight ticket averaging about $634. Cheapflights users have found deals in the month of February for as cheap as $394. The most expensive prices can be found in the month of June.

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

It’s typically best to fly out from San Francisco to Heathrow in the evening. Doing so could potentially save you 12% on the flight price compared to flying at noon, which is usually more expensive.

Cheap flights from San Francisco to Heathrow in September, October 2020

The best prices found for SFO to LHR flights for September, October
23 Oct - 1 Nov
$365pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
9 Oct - 31 Oct
$370pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
28 Oct - 4 Nov
$379pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco

San Francisco to Heathrow 2020 flight deals

Cheap flights to Heathrow from San Francisco found for this year
23 Oct - 1 Nov
$365pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
9 Oct - 31 Oct
$370pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
28 Oct - 4 Nov
$379pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco

Non-stop flights to Heathrow from San Francisco

Save time with San Francisco to Heathrow direct flight deals
30 Nov - 14 Jan
$674pp
SFO
San Francisco
Virgin Atlantic
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Virgin Atlantic
Non-Stop
SFO
San Francisco
29 Mar - 7 Apr
$684pp
SFO
San Francisco
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
SFO
San Francisco
11 Feb - 22 Feb
$685pp
SFO
San Francisco
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Iberia
Non-Stop
SFO
San Francisco

Last minute flights from San Francisco to Heathrow

Late deals on round-trip flights to Heathrow from San Francisco, departing today and this week
9 Oct - 31 Oct
$370pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
9 Oct - 24 Oct
$399pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco
7 Oct - 21 Oct
$459pp
SFO
San Francisco
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SFO
San Francisco

One-way flights to Heathrow from San Francisco

The cheapest one-way flights from San Francisco to Heathrow
11:40 am - 4:35 pm
TAP AIR PORTUGAL
1 Stop
20h 55m
SFO - LHR
TAP AIR PORTUGAL
$154
Gotogate
11:40 am - 1:55 pm
TAP AIR PORTUGAL
1 Stop
18h 15m
SFO - LHR
TAP AIR PORTUGAL
$161
mytrip.com
1:40 pm - 2:55 pm
TAP AIR PORTUGAL
1 Stop
18h 15m
SFO - LHR
TAP AIR PORTUGAL
$168
Gotogate

Related info for your journey

Useful info, stats and facts about San Francisco to Heathrow flights.

Flight FAQs

From San Francisco to Heathrow

Are flight prices decreasing from San Francisco to Heathrow due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both San Francisco and Heathrow for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from San Francisco to Heathrow for under $400 on Cheapflights?

Yes, there are multiple flights from San Francisco to Heathrow for under $400. The cheapest flight booked recently is on Multiple Airlines for just $365, but on average you can expect to pay $405.

Are there nonstop flights from San Francisco to Heathrow for under $700 on Cheapflights?

Cheapflights has at least 20 direct flights from San Francisco to Heathrow under $700. A good price for a nonstop flight from San Francisco to Heathrow is less than $693.

Are there last-minute flights available from San Francisco to Heathrow for under $400?

There are currently 20+ open flights from San Francisco to Heathrow within the next 7 days for less than $400.

Does it rain more in San Francisco or Heathrow?

In San Francisco, there will be less rainfall in San Francisco compared to Heathrow over the next 3 days.

Is San Francisco weather warmer or cooler than Heathrow?

Our data indicates that the weather will be 77 °F on average in the month of September. The temperature in Heathrow is typically colder than in San Francisco. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from San Francisco to Heathrow?

Airlines like TAP AIR PORTUGAL fly from San Francisco to Heathrow in about 15h 20m. The time it takes to get you to your destination can typically vary by up to .

What is the cheapest airline to fly from San Francisco to Heathrow round-trip?

According to our current data, TAP AIR PORTUGAL ($411), offers the cheapest pricing from San Francisco to Heathrow. You may be able to fly from San Francisco to Heathrow for 29% less than the average price by searching for this airline.

What are the cheapest airlines to fly from San Francisco to Heathrow one-way?

One-way options have recently been found by users for as low as $154 on TAP AIR PORTUGAL.

Alternative routes for San Francisco to Heathrow

Destination information for Heathrow

Things to know before you go. Useful info for your trip from San Francisco to Heathrow
Today's exchange rate
$1 = £0.78
Average temperature for September in Heathrow
68.0 °F
Avg rainfall for September in Heathrow
2.1 ″

Airports servicing San Francisco

Airports servicing London

Hourly flight availability from San Francisco to Heathrow

Afternoon Noon to 6 PM 100% of SFO to LHR departures
Early morning Midnight to 6 AM 0% of SFO to LHR departures
Morning 6 AM to noon 0% of SFO to LHR departures
Evening 6 PM to midnight 0% of SFO to LHR departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Francisco to Heathrow
Sunday
7 daily flights
Monday
7 daily flights
Tuesday
12 daily flights
Wednesday
12 daily flights
Thursday
7 daily flights
Friday
7 daily flights
Saturday
7 daily flights
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