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Cheap flights from California to London, ON from C$ 190

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
5 Feb — 12 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 6 January 2026.

Round-trip from

C$ 445

One-way from

C$ 190

Popular in

November

Cheapest in

May

Average price

C$ 423
Air Canada
  • Air Canada
  • 19/2-26/2
  • 3 total stops
  • 25h 10m total
  • California to London
Search Deals
Air Canada
  • Air Canada
  • 2/2
  • 2 total stops
  • 11h 46m total
  • California to London
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (C$ 331 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (C$ 66 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 6 January 2026.

Thu 19/21:20 p.m.SFO - YXU
2 stops16h 26mAir Canada
Thu 26/25:10 a.m.YXU - SFO
1 stop8h 44mAir Canada
Deal found 5/1C$ 445
Sat 27/62:45 p.m.SFO - YXU
2 stops11h 27mWestJet
Wed 1/78:00 p.m.YXU - SFO
2 stops20h 57mWestJet
Deal found 5/1C$ 454
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$ 509
Mon 2/212:35 p.m.SAN - YXU
1 stop15h 00mMultiple Airlines
Mon 9/28:10 p.m.YXU - SAN
2 stops38h 07mMultiple Airlines
Deal found 5/1C$ 509
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$ 530
Thu 19/210:15 a.m.SFO - YXU
2 stops17h 20mMultiple Airlines
Thu 26/28:10 p.m.YXU - SFO
1 stop19h 00mMultiple Airlines
Deal found 5/1C$ 545
Mon 26/112:00 p.m.SFO - YXU
1 stop17h 46mAir Canada
Tue 3/25:10 a.m.YXU - SFO
1 stop8h 44mAir Canada
Deal found 4/1C$ 578
Thu 19/26:05 p.m.SAN - YXU
2 stops11h 41mAir Canada
Thu 26/25:10 a.m.YXU - SAN
1 stop9h 43mAir Canada
Deal found 5/1C$ 632
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$ 686
Fri 15/57:59 p.m.SJC - YXU
2 stops20h 08mMultiple Airlines
Sat 30/56:00 a.m.YXU - SJC
2 stops20h 37mMultiple Airlines
Deal found 5/1C$ 783
Mon 2/212:40 p.m.SAN - YXU
1 stop17h 06mAir Canada
Mon 9/29:25 a.m.YXU - SAN
2 stops16h 08mAir Canada
Deal found 5/1C$ 783
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$ 808

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 6 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 FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 19/2

1:20 p.m.-8:46 a.m.

2 stops16h 26m

London

Thu 26/2

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

1 stop8h 44m

C$ 445

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 27/6

2:45 p.m.-5:12 a.m.

2 stops11h 27m

London

Wed 1/7

8:00 p.m.-1:57 p.m.

2 stops20h 57m

C$ 454

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 2/2

12:35 p.m.-6:35 a.m.

1 stop15h 00m

London

Mon 9/2

8:10 p.m.-7:17 a.m.

2 stops38h 07m

C$ 509

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$ 509

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$ 530

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 26/1

7:30 a.m.-9:20 p.m.

2 stops10h 50m

London

Tue 3/2

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

1 stop8h 44m

C$ 536

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 19/2

10:15 a.m.-6:35 a.m.

2 stops17h 20m

London

Thu 26/2

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

1 stop19h 00m

C$ 545

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 19/2

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

1 stop17h 06m

London

Thu 26/2

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

1 stop9h 43m

C$ 676

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$ 686

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Fri 15/5

7:59 p.m.-7:07 p.m.

2 stops20h 08m

London

Sat 30/5

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

2 stops20h 37m

C$ 783

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 21 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$ 102). Flying from California to London, Ontario in December is currently the most expensive (average of C$ 212). 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 and WestJet can get you from California to London, Ontario in just under 11h 27m. Your travel time can differ by up to 4h 59m. 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 Diego - London. You may also consider San Francisco - 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$ 102). Flying from California to London, Ontario in December is currently the most expensive (average of C$ 212). 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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