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

SFO — YXU
Oct 9 — Oct 161

What is the cheapest day to fly round-trip from San Francisco to London, Ontario?

Travelers have found that booking a Thursday departure is the best way to save up to 359% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest month to fly from San Francisco to London, Ontario?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, September can be a great choice for travel to London, Ontario. Flights to London, Ontario from San Francisco in September are about $725 on average during September, but can be found for as low as $463.

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 5% on airfare.

Cheap flights from San Francisco to London in October, November 2022

The best prices found for SFO to YXU flights for October, November
Oct 27 - Oct 31
SFO

San Francisco

YXU

London

2 stops

12h 02m
YXU

London

SFO

San Francisco

1 stop

17h 13m
$510

Air Canada

Pick Dates

Deal found 10/4/22

Oct 27 - Oct 31
SFO

San Francisco

YXU

London

1 stop

11h 37m
YXU

London

SFO

San Francisco

1 stop

17h 13m
$526

Air Canada

Pick Dates

Deal found 10/4/22

Oct 31 - Nov 30
SFO

San Francisco

YXU

London

1 stop

11h 19m
YXU

London

SFO

San Francisco

1 stop

17h 13m
$528

United Airlines

Pick Dates

Deal found 10/2/22

San Francisco to London 2022 flight deals

Cheap flights to London from San Francisco found for this year
Dec 25 - Jan 10
SFO

San Francisco

YXU

London

1 stop

7h 42m
YXU

London

SFO

San Francisco

2 stops

14h 29m
$473

Air Canada

Pick Dates

Deal found 10/3/22

Dec 25 - Jan 10
SFO

San Francisco

YXU

London

2 stops

12h 49m
YXU

London

SFO

San Francisco

2 stops

14h 29m
$478

Air Canada

Pick Dates

Deal found 10/3/22

Dec 25 - Jan 10
SFO

San Francisco

YXU

London

1 stop

7h 42m
YXU

London

SFO

San Francisco

1 stop

18h 10m
$489

Air Canada

Pick Dates

Deal found 10/3/22

Cheap United Airlines flights from San Francisco to London

Oct 31 - Nov 30
SFO

San Francisco

YXU

London

1 stop

11h 19m
YXU

London

SFO

San Francisco

1 stop

17h 13m
$528

United Airlines

Pick Dates

Deal found 10/2/22

Oct 31 - Nov 30
SFO

San Francisco

YXU

London

2 stops

13h 34m
YXU

London

SFO

San Francisco

1 stop

17h 13m
$537

United Airlines

Pick Dates

Deal found 10/2/22

Oct 20 - Oct 27
SFO

San Francisco

YXU

London

1 stop

11h 37m
YXU

London

SFO

San Francisco

1 stop

9h 25m
$692

United Airlines

Pick Dates

Deal found 10/3/22

Cheap Air Canada flights from San Francisco to London

Dec 25 - Jan 10
SFO

San Francisco

YXU

London

1 stop

7h 42m
YXU

London

SFO

San Francisco

2 stops

14h 29m
$473

Air Canada

Pick Dates

Deal found 10/3/22

Dec 25 - Jan 10
SFO

San Francisco

YXU

London

2 stops

12h 49m
YXU

London

SFO

San Francisco

2 stops

14h 29m
$478

Air Canada

Pick Dates

Deal found 10/3/22

Dec 25 - Jan 10
SFO

San Francisco

YXU

London

1 stop

7h 42m
YXU

London

SFO

San Francisco

1 stop

18h 10m
$489

Air Canada

Pick Dates

Deal found 10/3/22

One-way flights to London from San Francisco

The cheapest one-way flights from San Francisco to London
Dec 25
SFO

San Francisco

YXU

London

1 stop

7h 42m
$250

Air Canada

Pick Dates

Deal found 10/3/22

Dec 28
SFO

San Francisco

YXU

London

2 stops

18h 54m
$383

United Airlines

Pick Dates

Deal found 10/3/22

Dec 30
SFO

San Francisco

YXU

London

1 stop

7h 59m
$389

Multiple Airlines

Pick Dates

Deal found 10/3/22

Related info for your journey

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

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 United Airlines. 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 $500 on Cheapflights?

Yes, there are multiple flights from San Francisco to London, Ontario for under $500. The cheapest flight booked recently is on Air Canada for just $473, but on average you can expect to pay $565.

What are the cheapest airlines flying from San Francisco to London, Ontario round-trip?

Air Canada, at $473, was found to be the cheapest airline from San Francisco to London, Ontario.Alternate airlines to your destination round-trip include United Airlines and Delta. These flights start at 34% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from San Francisco to London, Ontario one-way?

One-way options have recently been found by users for as low as $250 on Air Canada. Other airlines that offer cheap prices include United Airlines from $383 and WestJet from $438 one-way.

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

On average you can expect to pay $1,259 for a flight from San Francisco to London, Ontario. The cheapest flight overall is $547 while the most popular route, (San Francisco - London) is currently priced at $623.

Alternative routes for San Francisco to London

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

Top 2 airlines flying from San Francisco to London

The chart below displays the airlines Cheapflights users traveling from San Francisco to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Air CanadaCheapest$240Average$682FlexibilityNo cancel feeOn-time67%COVID-19 safety
Search Air Canada flights
United AirlinesCheapest$439Average$700FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights