Find flights
When to book
FAQs

Cheap flights from California to London, ON from C$ 201

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
13 feb. — 20 feb.1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from California to London

Keep the following information in mind while searching for California to London flight deals. Data was last updated 14 enero 2026.

Round-trip from

C$ 469

One-way from

C$ 201

Popular in

November

Cheapest in

May

Average price

C$ 426
Air Canada
  • Air Canada
  • 28/2-7/3
  • 3 total stops
  • 31h 40m total
  • California to London
Search Deals
Air Canada
  • Air Canada
  • 20/4
  • 1 total stop
  • 9h 48m total
  • California to London
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (C$ 336 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from California to London

Enter your travel dates to find the best prices.

Cheapest flights from California to London
Explore the most affordable flight options available from California to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 enero 2026.

jue. 26/28:30 a.m.
SFO
-
YXU
1 stop9h 51m
United Airlines
jue. 5/35:10 a.m.
YXU
-
SFO
1 stop8h 44m
United Airlines
Deal found 11/1C$ 598
vie. 6/310:30 p.m.
SAN
-
YXU
2 stops19h 51m
United Airlines
lun. 9/35:10 a.m.
YXU
-
SAN
2 stops16h 50m
United Airlines
Deal found 12/1C$ 697
vie. 15/57:00 a.m.
SJC
-
YXU
2 stops33h 07m
Multiple Airlines
sáb. 30/56:00 a.m.
YXU
-
SJC
2 stops16h 19m
Multiple Airlines
Deal found 12/1C$ 805
mié. 21/16:00 p.m.
SFO
-
YXU
2 stops11h 46m
Air Canada
sáb. 24/15:10 a.m.
YXU
-
SFO
1 stop8h 40m
Air Canada
Deal found 12/1C$ 837
mar. 20/17:30 a.m.
SFO
-
YXU
2 stops10h 51m
Air Canada
mié. 21/15:10 a.m.
YXU
-
SFO
2 stops13h 25m
Air Canada
Deal found 11/1C$ 844
vie. 6/312:40 p.m.
SAN
-
YXU
1 stop17h 06m
Air Canada
lun. 9/35:10 a.m.
YXU
-
SAN
1 stop9h 43m
Air Canada
Deal found 12/1C$ 977
mié. 4/38:50 a.m.
SJC
-
YXU
2 stops9h 31m
Air Canada
mié. 18/35:10 a.m.
YXU
-
SJC
2 stops11h 31m
Air Canada
Deal found 12/1C$ 1,016
jue. 26/28:50 a.m.
SJC
-
YXU
2 stops9h 31m
United Airlines
jue. 5/39:25 a.m.
YXU
-
SJC
2 stops16h 31m
United Airlines
Deal found 11/1C$ 1,166
vie. 27/28:50 a.m.
SJC
-
YXU
3 stops20h 56m
Air Canada
vie. 6/39:25 a.m.
YXU
-
SJC
2 stops14h 51m
Air Canada
Deal found 13/1C$ 1,361
dom. 1/38:50 a.m.
SJC
-
YXU
2 stops20h 56m
Air Canada
jue. 5/35:10 a.m.
YXU
-
SJC
2 stops11h 31m
Air Canada
Deal found 11/1C$ 1,372
vie. 27/28:50 a.m.
SJC
-
YXU
2 stops20h 56m
United Airlines
vie. 6/35:10 a.m.
YXU
-
SJC
2 stops20h 49m
United Airlines
Deal found 13/1C$ 1,517
vie. 27/28:50 a.m.
SJC
-
YXU
3 stops20h 56m
Multiple Airlines
vie. 6/35:40 p.m.
YXU
-
SJC
3 stops23h 01m
Multiple Airlines
Deal found 13/1C$ 1,595

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 14 enero 2026.
Use the filters below to find and compare flights from California to London that are best for you.

Fly from

California

Fly to

London

Route

Depart

Return

Price

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

jue. 26/2

8:30 a.m.-9:21 p.m.

1 stop9h 51m

London

jue. 5/3

5:10 a.m.-10:54 a.m.

1 stop8h 44m

C$ 598

San DiegoLondon

SAN - YXU

SANYXU

San Diego

vie. 6/3

10:30 p.m.-9:21 p.m.

2 stops19h 51m

London

lun. 9/3

5:10 a.m.-7:00 p.m.

2 stops16h 50m

C$ 697

San JoseLondon

SJC - YXU

SJCYXU

San Jose

vie. 15/5

7:00 a.m.-7:07 p.m.

2 stops33h 07m

London

sáb. 30/5

6:00 a.m.-7:19 p.m.

2 stops16h 19m

C$ 805

San DiegoLondon

SAN - YXU

SANYXU

San Diego

vie. 6/3

12:40 p.m.-8:46 a.m.

1 stop17h 06m

London

lun. 9/3

5:10 a.m.-11:53 a.m.

1 stop9h 43m

C$ 977

San JoseLondon

SJC - YXU

SJCYXU

San Jose

mié. 4/3

8:50 a.m.-9:21 p.m.

2 stops9h 31m

London

mié. 18/3

5:10 a.m.-1:41 p.m.

2 stops11h 31m

C$ 1,016

San JoseLondon

SJC - YXU

SJCYXU

San Jose

jue. 26/2

8:50 a.m.-9:21 p.m.

2 stops9h 31m

London

jue. 5/3

9:25 a.m.-10:56 p.m.

2 stops16h 31m

C$ 1,166

San JoseLondon

SJC - YXU

SJCYXU

San Jose

vie. 27/2

8:50 a.m.-8:46 a.m.

3 stops20h 56m

London

vie. 6/3

9:25 a.m.-9:16 p.m.

2 stops14h 51m

C$ 1,361

San JoseLondon

SJC - YXU

SJCYXU

San Jose

dom. 1/3

8:50 a.m.-8:46 a.m.

2 stops20h 56m

London

jue. 5/3

5:10 a.m.-1:41 p.m.

2 stops11h 31m

C$ 1,372

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

mié. 22/4

8:30 a.m.-9:18 p.m.

1 stop9h 48m

C$ 201

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

lun. 20/4

8:30 a.m.-9:18 p.m.

1 stop9h 48m

C$ 201

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/1

Showing 1-10 of 19 results
1
2

Best time to book a flight from California to London

Have a flexible travel schedule? Discover the best time to fly to London from California with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from California to London

What is the cheapest month to book a flight from California to London, Ontario?

Currently, June is the cheapest month in which you can book a flight from California to London, Ontario (average of C$ 103). Flying from California to London, Ontario in December is currently the most expensive (average of C$ 214). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from California to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to London from California?

    London (YXU) is the airport you will fly into if you book a flight from California to London. It is only a 8.6 km journey from London (YXU) to London’s city centre.

  • How long is the flight from California to London, Ontario?

    United Airlines and Air Canada can get you from California to London, Ontario in just under 9h 51m. Your travel time can differ by up to 7h 15m. The distance from California to London, Ontario is about 3508 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from California to London, Ontario?

    The most popular route from California to London, Ontario is San Francisco - London. You may also consider San Diego - London or San Jose - London.

  • Can I find deals for flights from California to London that include hotel bookings?

    Yes. In addition to deals on California to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to London.

  • Can I find deals for business class flights from California to London?

    Yes. Cheapflights offers flight deals from California to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from California to London, Ontario?

    Currently, June is the cheapest month in which you can book a flight from California to London, Ontario (average of C$ 103). Flying from California to London, Ontario in December is currently the most expensive (average of C$ 214). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Port Stanley
Grand Bend

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for California to London

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Toronto Island flights
Newark to Pearson Intl flights
Newark to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Pearson Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
LaGuardia to Pearson Intl flights
Los Angeles to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Boston to Pierre Elliott Trudeau Intl flights
Reagan-National to Pearson Intl flights
San Francisco to Pearson Intl flights
Boston to Pearson Intl flights
O'Hare Intl to Pearson Intl flights
Boston to Toronto Island flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pearson Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Dulles Intl to Pearson Intl flights
Atlanta to Pearson Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
Seattle to Pearson Intl flights
Hobby to Pearson Intl flights
Dulles Intl to Toronto Island flights
Raleigh to Pearson Intl flights
Miami to Pierre Elliott Trudeau Intl flights
Sky Harbor Intl to Pearson Intl flights
Charlotte to Pearson Intl flights
George Bush Intcntl to Pearson Intl flights
Fort Lauderdale to Pearson Intl flights
Midway to Toronto Island flights
Atlanta to Pierre Elliott Trudeau Intl flights
Baltimore to Pearson Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Philadelphia to Pearson Intl flights
Orlando to Pearson Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Midway to Pearson Intl flights
Philadelphia to Pierre Elliott Trudeau Intl flights
Minneapolis to Pierre Elliott Trudeau Intl flights
Minneapolis to Pearson Intl flights
Miami to Pearson Intl flights
O'Hare Intl to Toronto Island flights
Tampa to Pearson Intl flights
Orlando to Toronto Island flights
San Diego to Pearson Intl flights
Nashville to Pierre Elliott Trudeau Intl flights
Newark to Ottawa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from California to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from California today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from California to London?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from California to London for you. Better yet — we are completely free to use.

Can Cheapflights find flights from California to London with no change fees?

Yes, we can. To see specific flights from California to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from California to London become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.