Cheap flights from San Francisco (SFO) to London (YXU)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
San Francisco (SFO) to London (YXU)

All the information you need to plan the best SFO to YXU flight in 2022: compare San Francisco to London flight prices with the expected peak season, weather and rainfall in London.
What is the cheapest day to fly round-trip from San Francisco to London, Ontario?

Travelers have found that booking a Tuesday departure is the best way to save up to 281% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

When is the cheapest time to fly from San Francisco to London, Ontario (SFO - YXU)?

One of the essential ways to save on airfare from San Francisco to London, Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 6% on airfare.

Cheap flights from San Francisco to London in January, February 2022

The best prices found for SFO to YXU flights for January, February
16 Feb - 23 Feb
$582pp
SFO
San Francisco
Air Canada
 
1 STOP
YXU
London
YXU
London
Air Canada
   
2 STOPS
SFO
San Francisco
16 Feb - 23 Feb
$584pp
SFO
San Francisco
Air Canada
   
2 STOPS
YXU
London
YXU
London
Air Canada
   
2 STOPS
SFO
San Francisco
15 Feb - 23 Feb
$591pp
SFO
San Francisco
Air Canada
   
2 STOPS
YXU
London
YXU
London
Air Canada
   
2 STOPS
SFO
San Francisco

San Francisco to London 2022 flight deals

Cheap flights to London from San Francisco found for this year
17 Mar - 21 Mar
$527pp
SFO
San Francisco
Air Canada
   
2 STOPS
YXU
London
YXU
London
Air Canada
   
2 STOPS
SFO
San Francisco
17 Mar - 21 Mar
$544pp
SFO
San Francisco
Air Canada
   
2 STOPS
YXU
London
YXU
London
Air Canada
 
1 STOP
SFO
San Francisco
17 Mar - 21 Mar
$579pp
SFO
San Francisco
Air Canada
 
1 STOP
YXU
London
YXU
London
Air Canada
 
1 STOP
SFO
San Francisco

One-way flights to London from San Francisco

The cheapest one-way flights from San Francisco to London
7:00 am - 4:46 pm
Air Canada
1 Stop
6h 46m
SFO - YXU
Air Canada
$278
Air Canada
11:50 am - 12:09 pm
Air Canada
2 Stops
21h 19m
SFO - YXU
Air Canada
$304
Air Canada

Related info for your journey

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

Flight FAQs

From San Francisco to London

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

Some of the carriers operating flights from San Francisco to London that may be offering flexible cancellation policies are Air Canada and WestJet. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from San Francisco to London, Ontario for under $600 on Cheapflights?

Yes, there are multiple flights from San Francisco to London, Ontario for under $600. The cheapest flight booked recently is on Air Canada for just $527, but on average you can expect to pay $664.

What are the cheapest flights from San Francisco to London, Ontario?

On average you can expect to pay $435 for a flight from San Francisco to London, Ontario. The cheapest flight overall is $291 while the most popular route, (San Francisco - London) is currently priced at $537.

COVID Restrictions

View COVID Travel Restrictions for London, Canada

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

Information is based on travel restrictions from San Francisco to London

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

COVID-19 testing requirements
Visitors from San Francisco must present a negative RT-PCR (NAAT) test taken 72 hours before departing to London.

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

Documents
Compassionate entry for travellers and limited release from quarantine - Foreign nationals traveling without an advance written approval for an exemption of a border restriction may be denied entry into Canada.


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

Returning to San Francisco from London

COVID-19 testing requirements
Visitors from London must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to San Francisco.

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

Hide COVID Travel Restrictions for London, Canada

Alternative routes for San Francisco to London

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

Destination information for London

Things to know before you go - useful duration and weather info for your trip from San Francisco to London.
Today's exchange rate
$1 = C$ 1.25
Average temperature for January in London
32.0 °F
Avg rainfall for January in London
2.9 ″

Airports servicing San Francisco

Airports servicing London

Home North America Canada Ontario London Cheap flights from San Francisco to London