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Cheap flights from California to London, ON from C$ 226

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 31/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
23 Mar — 30 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 21 February 2026.

Sat 11/48:30 a.m.
SFO
-
YXU
1 stop9h 48m
Air Canada
Wed 15/49:25 a.m.
YXU
-
SFO
1 stop8h 55m
Air Canada
Deal found 17/2C$ 571
Fri 10/77:35 p.m.
SFO
-
YXU
2 stops13h 10m
Air Canada
Tue 14/76:00 a.m.
YXU
-
SFO
1 stop7h 42m
Air Canada
Deal found 17/2C$ 724
Mon 22/63:30 p.m.
SAN
-
YXU
2 stops20h 15m
WestJet
Mon 29/65:55 p.m.
YXU
-
SAN
1 stop23h 15m
WestJet
Deal found 21/2C$ 775
Tue 7/41:10 p.m.
SAN
-
YXU
1 stop16h 33m
Air Canada
Tue 14/45:10 a.m.
YXU
-
SAN
1 stop9h 43m
Air Canada
Deal found 21/2C$ 784
Sun 5/48:30 a.m.
SFO
-
YXU
1 stop9h 48m
Air Canada
Sun 12/45:10 a.m.
YXU
-
SFO
2 stops10h 20m
Air Canada
Deal found 19/2C$ 788
Tue 14/711:40 a.m.
SFO
-
YXU
1 stop7h 00m
Air Canada
Thu 16/79:30 a.m.
YXU
-
SFO
1 stop8h 57m
Air Canada
Deal found 20/2C$ 817
Mon 22/67:00 a.m.
SAN
-
YXU
2 stops11h 37m
Air Canada
Mon 29/66:00 a.m.
YXU
-
SAN
1 stop8h 35m
Air Canada
Deal found 18/2C$ 821
Tue 7/47:40 p.m.
SAN
-
YXU
3 stops22h 38m
United Airlines
Tue 14/45:10 a.m.
YXU
-
SAN
1 stop9h 43m
United Airlines
Deal found 21/2C$ 838
Tue 7/48:45 a.m.
SJC
-
YXU
2 stops20h 58m
Air Canada
Tue 14/45:10 a.m.
YXU
-
SJC
2 stops18h 57m
Air Canada
Deal found 20/2C$ 946
Fri 15/51:14 p.m.
SJC
-
YXU
2 stops13h 06m
Multiple Airlines
Sat 30/56:10 a.m.
YXU
-
SJC
2 stops20h 21m
Multiple Airlines
Deal found 20/2C$ 950
Fri 15/56:19 p.m.
SJC
-
YXU
2 stops20h 14m
Air Canada
Sat 30/56:00 a.m.
YXU
-
SJC
2 stops14h 30m
Air Canada
Deal found 19/2C$ 1,006
Tue 7/48:45 a.m.
SJC
-
YXU
2 stops9h 33m
Multiple Airlines
Tue 14/49:25 a.m.
YXU
-
SJC
3 stops14h 42m
Multiple Airlines
Deal found 20/2C$ 1,040

Find flight deals from California to London

Keep the following information in mind while searching for California to London flight deals. Data was last updated 21 February 2026.

Round-trip from

C$ 571

One-way from

C$ 226
Air Canada
  • Air Canada
  • 11/4-15/4
  • 2 total stops
  • 18h 43m total
  • California to London
Search Deals
Air Canada
  • Air Canada
  • 31/5
  • 2 total stops
  • 10h 33m total
  • California to London
Search Deals

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 21 February 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

Sat 11/4

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

1 stop9h 48m

London

Wed 15/4

9:25 a.m.-3:20 p.m.

1 stop8h 55m

C$ 571

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Wed 15/4

6:00 p.m.-8:43 a.m.

2 stops11h 43m

London

Fri 17/4

5:10 a.m.-10:55 a.m.

1 stop8h 45m

C$ 662

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 10/7

7:35 p.m.-11:45 a.m.

2 stops13h 10m

London

Tue 14/7

6:00 a.m.-10:42 a.m.

1 stop7h 42m

C$ 724

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 22/6

3:30 p.m.-2:45 p.m.

2 stops20h 15m

London

Mon 29/6

6:10 a.m.-2:10 p.m.

1 stop11h 00m

C$ 801

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Tue 7/4

1:10 p.m.-8:43 a.m.

1 stop16h 33m

London

Tue 14/4

5:10 a.m.-5:25 p.m.

2 stops15h 15m

C$ 817

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 22/6

7:00 a.m.-9:37 p.m.

2 stops11h 37m

London

Mon 29/6

6:00 a.m.-11:35 a.m.

1 stop8h 35m

C$ 821

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Tue 7/4

7:40 p.m.-9:18 p.m.

3 stops22h 38m

London

Tue 14/4

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

1 stop9h 43m

C$ 838

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Wed 4/3

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

2 stops9h 31m

London

Wed 18/3

9:40 a.m.-10:59 p.m.

2 stops16h 19m

C$ 1,006

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Fri 15/5

6:19 p.m.-5:33 p.m.

2 stops20h 14m

London

Sat 30/5

6:00 a.m.-5:30 p.m.

2 stops14h 30m

C$ 1,006

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Tue 7/4

8:45 a.m.-9:18 p.m.

2 stops9h 33m

London

Tue 14/4

9:25 a.m.-9:07 p.m.

3 stops14h 42m

C$ 1,040

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/2

Showing 1-10 of 30 results
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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$ 104). Flying from California to London, Ontario in December is currently the most expensive (average of C$ 211). 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?

    Air Canada, WestJet, and United Airlines can get you from California to London, Ontario in just under 9h 48m. Your travel time can differ by up to 12h 50m. 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 Jose - London or San Diego - 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$ 104). Flying from California to London, Ontario in December is currently the most expensive (average of C$ 211). 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?

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Fly with Cheapflights

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

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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.

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