You know where to go
Select an airport in the search form
You don't know where to go
See where you can go on your budget
LHR - SFO
Find cheap flights from London Heathrow Airport to San Francisco
Round-trip
Economy
Search hundreds of travel sites at once for deals on flights to San Francisco
Good to know
Low season |
February | Best time to beat the crowds with an average 22% drop in price. |
|---|---|---|
High season |
July | Most popular time to fly with an average 38% increase in price. |
Average price of a round-trip |
$496 | (avg. price over the last 2 weeks) |
Good deal for a round-trip |
$454 | or less |
When to book flights from London Heathrow to San Francisco
Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days
Top tips for finding a cheap flight
- Looking for a cheap flight? 25% of our users found flights on this route for $410 or less.
- The cheapest flight from London Heathrow Airport to San Francisco was found 88 days before departure, on average.
- Book at least 3 weeks before departure in order to get a below-average price.
- High season is considered to be June, July and August. The cheapest month to fly is February.
- Morning departure is around 25% more expensive than an evening flight, on average*.
FAQs for booking London Heathrow Airport to San Francisco flights
How long does a flight from London Heathrow Airport to San Francisco take?
How many flights are there between London Heathrow Airport and San Francisco?
Which airlines provide the cheapest flights from London Heathrow Airport to San Francisco?
Do I need a passport to fly between London Heathrow Airport and San Francisco?
Which airlines fly most frequently between London Heathrow Airport and San Francisco?
What’s the cheapest day of the week to fly London Heathrow Airport to San Francisco?
How does KAYAK find such low prices on flights from London Heathrow Airport to San Francisco?
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to San Francisco?
What is the Hacker Fare option on flights from London Heathrow Airport to San Francisco?
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to San Francisco?
Top 5 airlines serving London Heathrow to San Francisco
Scores according to KAYAK customer reviews
8.1
Virgin Atlantic
Overall score based on 1,566 reviews
8.3
Boarding
7.8
Comfort
8.6
Crew
8.0
Entertainment
7.8
Food
Book cheap flights from London Heathrow Airport to San Francisco (round-trip)
Virgin Atlantic
Tue, Dec 29
LHR
London Heathrow Airport
SFO
San Francisco Airport
11h 20m
Tue, Jan 12
SFO
San Francisco Airport
LHR
London Heathrow Airport
10h 15m
Trip: 15 days
Based on null reviews
TAP AIR PORTUGAL
Tue, Oct 6
LHR
London Heathrow Airport
SFO
San Francisco Airport
27h 55m
Sun, Oct 18
SFO
San Francisco Airport
LHR
London Heathrow Airport
17h 15m
Trip: 13 days
Based on null reviews
Multiple Airlines
Tue, Oct 6
LHR
London Heathrow Airport
SFO
San Francisco Airport
33h 45m
Sun, Oct 18
SFO
San Francisco Airport
LHR
London Heathrow Airport
17h 15m
Trip: 13 days
Based on null reviews
Lufthansa
Tue, Dec 29
LHR
London Heathrow Airport
SFO
San Francisco Airport
15h 20m
Sun, Jan 10
SFO
San Francisco Airport
LHR
London Heathrow Airport
14h 10m
Trip: 13 days
Based on null reviews
Show more results
Book cheap flights from London Heathrow Airport to San Francisco (one-way)
Based on null reviews
Based on null reviews
Based on null reviews
Based on null reviews
Show more results
London Heathrow Airport - San Francisco Flights
Departure:
London Heathrow Airport (LHR) United Kingdom
Destination:
San Francisco (SFO) United States
Return flight deals:
Browse origins:
- Flights »
- Worldwide »
- Europe »
- United Kingdom »
- England »
- London »
- London Heathrow Airport
Browse destinations:
$397
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.
We attempt to get accurate prices, however, prices are not guaranteed.
We attempt to get accurate prices, however, prices are not guaranteed.
Here's why:
We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.
We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.
Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.
If you have more questions or if you have a bad price to report to us,
please send us an
email
and someone from our team will get back to you promptly.
^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last
72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may
not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags.
Please check the carriers' sites.
-
1