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Cheap flights from California to London, ON from C$ 195

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
17 Mar — 24 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 15 February 2026.

Fri 10/76:05 p.m.
SFO
-
YXU
1 stop8h 15m
WestJet
Tue 14/72:20 p.m.
YXU
-
SFO
2 stops10h 35m
WestJet
Deal found 14/2C$ 392
Sat 11/76:05 p.m.
SFO
-
YXU
1 stop8h 15m
WestJet
Tue 14/76:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Deal found 14/2C$ 433
Sat 11/47:25 a.m.
SFO
-
YXU
2 stops10h 53m
Air Canada
Wed 15/49:25 a.m.
YXU
-
SFO
1 stop8h 55m
Air Canada
Deal found 11/2C$ 486
Fri 17/44:15 p.m.
SFO
-
YXU
1 stop13h 28m
Air Canada
Mon 20/49:25 a.m.
YXU
-
SFO
1 stop15h 05m
Air Canada
Deal found 14/2C$ 547
Wed 19/83:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Mon 24/85:55 p.m.
YXU
-
SAN
1 stop23h 15m
WestJet
Deal found 11/2C$ 598
Mon 22/63:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Mon 29/65:55 p.m.
YXU
-
SAN
1 stop23h 15m
WestJet
Deal found 12/2C$ 615
Tue 31/311:01 a.m.
SAN
-
YXU
2 stops18h 42m
United Airlines
Tue 7/45:10 a.m.
YXU
-
SAN
1 stop9h 43m
United Airlines
Deal found 14/2C$ 674
Fri 6/310:30 p.m.
SAN
-
YXU
2 stops19h 51m
United Airlines
Mon 9/35:40 p.m.
YXU
-
SAN
2 stops21h 10m
United Airlines
Deal found 12/2C$ 694
Wed 19/87:00 a.m.
SAN
-
YXU
2 stops11h 40m
Air Canada
Mon 24/86:00 a.m.
YXU
-
SAN
1 stop8h 35m
Air Canada
Deal found 11/2C$ 698
Tue 31/312:40 p.m.
SAN
-
YXU
1 stop17h 03m
Air Canada
Tue 7/45:10 a.m.
YXU
-
SAN
1 stop9h 43m
Air Canada
Deal found 14/2C$ 741
Mon 22/67:00 a.m.
SAN
-
YXU
2 stops11h 37m
Air Canada
Mon 29/612:20 p.m.
YXU
-
SAN
2 stops13h 14m
Air Canada
Deal found 12/2C$ 822
Fri 15/56:00 p.m.
SJC
-
YXU
2 stops32h 20m
Multiple Airlines
Sat 30/56:10 a.m.
YXU
-
SJC
2 stops20h 27m
Multiple Airlines
Deal found 13/2C$ 851

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 15 February 2026.

Round-trip from

C$ 392

One-way from

C$ 195
WestJet
  • WestJet
  • 10/7-14/7
  • 3 total stops
  • 18h 50m total
  • California to London
Search Deals
WestJet
  • WestJet
  • 23/4
  • 1 total stop
  • 14h 35m 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 15 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

7:25 a.m.-9:18 p.m.

2 stops10h 53m

London

Wed 15/4

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

1 stop8h 55m

C$ 486

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 17/4

2:30 p.m.-8:43 a.m.

1 stop15h 13m

London

Mon 20/4

5:10 a.m.-12:30 p.m.

2 stops10h 20m

C$ 520

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 22/6

3:30 p.m.-5:20 a.m.

1 stop10h 50m

London

Mon 29/6

5:55 p.m.-2:10 p.m.

1 stop23h 15m

C$ 615

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Tue 31/3

11:01 a.m.-8:43 a.m.

2 stops18h 42m

London

Tue 7/4

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

1 stop9h 43m

C$ 674

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Fri 6/3

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

2 stops19h 51m

London

Mon 9/3

5:40 p.m.-11:50 a.m.

2 stops21h 10m

C$ 694

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Tue 31/3

12:40 p.m.-8:43 a.m.

1 stop17h 03m

London

Tue 7/4

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

1 stop9h 43m

C$ 741

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

12:20 p.m.-10:34 p.m.

2 stops13h 14m

C$ 822

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Fri 15/5

6:00 p.m.-5:20 a.m.

2 stops32h 20m

London

Sat 30/5

6:10 a.m.-11:37 p.m.

2 stops20h 27m

C$ 851

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Fri 15/5

2:51 p.m.-5:20 a.m.

2 stops11h 29m

London

Sat 30/5

6:10 a.m.-7:28 p.m.

2 stops16h 18m

C$ 963

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

5:10 a.m.-9:16 p.m.

2 stops19h 06m

C$ 987

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 18 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$ 101). Flying from California to London, Ontario in December is currently the most expensive (average of C$ 210). 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 10h 50m. Your travel time can differ by up to 7h 52m. The distance from California to London, Ontario is about 3331 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 Jose - London. You may also consider San Diego - London or San Francisco - 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$ 101). Flying from California to London, Ontario in December is currently the most expensive (average of C$ 210). 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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