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Cheap flights from California to London, ON from C$ 189

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
7 Feb — 14 Feb1
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 8 January 2026.

Round-trip from

C$ 462

One-way from

C$ 189

Popular in

November

Cheapest in

May

Average price

C$ 424
WestJet
  • WestJet
  • 2/5-9/5
  • 3 total stops
  • 45h 15m total
  • California to London
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2/2
  • 2/2
  • 3 total stops
  • 32h 56m total
  • California to London
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (C$ 334 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (C$ 67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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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 8 January 2026.

Sat 2/52:05 p.m.SAN - YXU
1 stop26h 02mWestJet
Sat 9/58:00 p.m.YXU - SAN
2 stops19h 13mWestJet
Deal found 7/1C$ 462
Sat 2/57:00 a.m.SAN - YXU
2 stops11h 38mAir Canada
Sat 9/512:20 p.m.YXU - SAN
2 stops11h 23mAir Canada
Deal found 7/1C$ 506
Tue 20/16:00 p.m.SFO - YXU
2 stops11h 46mAir Canada
Wed 21/15:40 p.m.YXU - SFO
2 stops21h 40mAir Canada
Deal found 5/1C$ 511
Tue 20/11:00 p.m.SFO - YXU
1 stop14h 34mWestJet
Wed 21/18:10 p.m.YXU - SFO
1 stop19h 02mWestJet
Deal found 5/1C$ 532
Fri 20/211:59 p.m.SFO - YXU
2 stops14h 06mUnited Airlines
Fri 27/25:10 a.m.YXU - SFO
1 stop8h 44mUnited Airlines
Deal found 6/1C$ 646
Sat 21/211:30 a.m.SAN - YXU
2 stops18h 16mAir Canada
Sat 28/25:10 a.m.YXU - SAN
2 stops13h 33mAir Canada
Deal found 7/1C$ 647
Fri 20/26:05 p.m.SAN - YXU
2 stops11h 41mAir Canada
Fri 27/25:10 a.m.YXU - SAN
1 stop9h 43mAir Canada
Deal found 6/1C$ 688
Fri 20/23:40 p.m.SAN - YXU
2 stops26h 41mUnited Airlines
Fri 27/29:25 a.m.YXU - SAN
2 stops17h 15mUnited Airlines
Deal found 6/1C$ 811
Wed 4/32:36 p.m.SJC - YXU
2 stops36h 59mMultiple Airlines
Wed 18/38:10 p.m.YXU - SJC
2 stops40h 18mMultiple Airlines
Deal found 7/1C$ 846
Fri 15/57:00 a.m.SJC - YXU
2 stops33h 07mMultiple Airlines
Sat 30/56:00 a.m.YXU - SJC
2 stops20h 37mMultiple Airlines
Deal found 6/1C$ 943
Wed 4/38:50 a.m.SJC - YXU
2 stops9h 31mAir Canada
Wed 18/35:10 a.m.YXU - SJC
2 stops19h 06mAir Canada
Deal found 8/1C$ 1,012
Wed 14/16:05 p.m.SAN - YXU
2 stops11h 41mAir Canada
Sun 18/15:10 a.m.YXU - SAN
1 stop9h 43mAir Canada
Deal found 6/1C$ 1,024

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 8 January 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 DiegoLondon

SAN - YXU

SANYXU

San Diego

Sat 2/5

2:05 p.m.-7:07 p.m.

1 stop26h 02m

London

Sat 9/5

8:00 p.m.-12:13 p.m.

2 stops19h 13m

C$ 462

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Sat 2/5

7:00 a.m.-9:38 p.m.

2 stops11h 38m

London

Sat 9/5

12:20 p.m.-8:43 p.m.

2 stops11h 23m

C$ 506

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 20/1

6:00 p.m.-8:46 a.m.

2 stops11h 46m

London

Wed 21/1

5:40 p.m.-12:20 p.m.

2 stops21h 40m

C$ 511

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 20/1

1:00 p.m.-6:34 a.m.

1 stop14h 34m

London

Wed 21/1

8:10 p.m.-12:12 p.m.

1 stop19h 02m

C$ 532

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 20/2

11:59 p.m.-5:05 p.m.

2 stops14h 06m

London

Fri 27/2

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

1 stop8h 44m

C$ 646

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Sat 21/2

11:30 a.m.-8:46 a.m.

2 stops18h 16m

London

Sat 28/2

5:10 a.m.-3:43 p.m.

2 stops13h 33m

C$ 647

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Fri 20/2

6:05 p.m.-8:46 a.m.

2 stops11h 41m

London

Fri 27/2

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

1 stop9h 43m

C$ 688

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Fri 20/2

3:40 p.m.-9:21 p.m.

2 stops26h 41m

London

Fri 27/2

9:25 a.m.-11:40 p.m.

2 stops17h 15m

C$ 811

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Wed 4/3

2:36 p.m.-6:35 a.m.

2 stops36h 59m

London

Wed 18/3

8:10 p.m.-9:28 a.m.

2 stops40h 18m

C$ 846

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Fri 15/5

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

2 stops33h 07m

London

Sat 30/5

6:00 a.m.-11:37 p.m.

2 stops20h 37m

C$ 943

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/1

Showing 1-10 of 16 results
1
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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$ 102). Flying from California to London, Ontario in December is currently the most expensive (average of C$ 213). 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?

    WestJet and Air Canada can get you from California to London, Ontario in just under 11h 38m. Your travel time can differ by up to 14h 24m. 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$ 102). Flying from California to London, Ontario in December is currently the most expensive (average of C$ 213). 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
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