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$155+ Cheap flights from London, ON (YXU) to California

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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from London to California

Keep the following information in mind while searching for London to California flight deals. Data was last updated septiembre 11, 2025.

Round-trip from

$277
(oojo)

One-way from

$155
(oojo)

Popular in

December

Cheapest in

June

Average price

$410
From London to California
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One-way flight from London to California
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Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from London to California

Cheapest flights from London to California
Explore the most affordable flight options available from London to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/186:00 amYXU - LAS
2 stops17h 21mWestJet
sáb. 11/19:15 pmLAS - YXU
2 stops19h 57mWestJet
Deal found 9/9$277
This Trip.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/218:00 pmYXU - LAS
2 stops19h 32mWestJet
vie. 10/241:25 pmLAS - YXU
2 stops12h 47mWestJet
Deal found 9/11$291
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/148:00 pmYXU - LAS
2 stops27h 21mWestJet
vie. 10/176:20 pmLAS - YXU
1 stop7h 52mWestJet
Deal found 9/10$292
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/288:00 pmYXU - LAS
1 stop28h 29mWestJet
jue. 10/21:25 pmLAS - YXU
2 stops12h 47mWestJet
Deal found 9/9$296
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/148:00 pmYXU - LAS
2 stops19h 32mWestJet
mié. 10/228:00 amLAS - YXU
1 stop8h 07mWestJet
Deal found 9/10$301
This oojo deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/158:00 pmYXU - SFO
1 stop18h 54mWestJet
mié. 9/177:30 amSFO - YXU
1 stop18h 42mWestJet
Deal found 9/8$328
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/75:45 amYXU - SAN
1 stop8h 53mAir Canada
jue. 12/1112:45 pmSAN - YXU
2 stops17h 01mAir Canada
Deal found 9/9$340
This oojo deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/308:00 pmYXU - LAX
2 stops27h 21mWestJet
jue. 10/307:00 amLAX - YXU
1 stop9h 12mWestJet
Deal found 9/11$383
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/253:40 pmYXU - SFO
1 stop8h 52mUnited Airlines
sáb. 11/19:00 pmSFO - YXU
2 stops18h 05mUnited Airlines
Deal found 9/9$388
This oojo deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/306:00 amYXU - SNA
1 stop9h 01mWestJet
jue. 10/302:15 pmSNA - YXU
1 stop25h 57mWestJet
Deal found 9/11$425
This WestJet deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/268:00 pmYXU - LAX
1 stop18h 27mWestJet
dom. 11/27:00 amLAX - YXU
1 stop9h 12mWestJet
Deal found 9/10$426
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/75:45 amYXU - SAN
2 stops17h 11mUnited Airlines
jue. 12/115:45 pmSAN - YXU
3 stops20h 20mUnited Airlines
Deal found 9/9$446

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to California 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 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from London to California that are best for you.

Fly from

London

Fly to

California

Route

Depart

Return

Price

LondonLas Vegas

YXU - LAS

YXULAS

London

sáb. 10/18

6:00 am-8:21 pm

2 stops17h 21m

Las Vegas Harry Reid Intl

sáb. 11/1

9:15 pm-8:12 pm

2 stops19h 57m

$277

LondonLas Vegas

YXU - LAS

YXULAS

London

vie. 2/27

7:30 am-8:16 pm

2 stops15h 46m

Las Vegas Harry Reid Intl

dom. 3/1

8:00 am-7:13 pm

1 stop8h 13m

$290

LondonLas Vegas

YXU - LAS

YXULAS

London

mar. 10/14

8:00 pm-8:21 pm

2 stops27h 21m

Las Vegas Harry Reid Intl

vie. 10/17

6:20 pm-5:12 am

1 stop7h 52m

$292

LondonLos Angeles

YXU - LAX

YXULAX

London

vie. 1/16

7:30 am-4:58 pm

1 stop12h 28m

Los Angeles

dom. 1/25

7:00 am-7:12 pm

1 stop9h 12m

$299

LondonLas Vegas

YXU - LAS

YXULAS

London

mar. 10/21

8:00 pm-5:34 pm

1 stop24h 34m

Las Vegas Harry Reid Intl

vie. 10/24

8:00 am-7:07 pm

1 stop8h 07m

$304

LondonPalm Springs

YXU - PSP

YXUPSP

London

dom. 2/22

8:00 pm-12:26 pm

2 stops19h 26m

Palm Springs

jue. 2/26

6:00 pm-6:35 am

1 stop9h 35m

$310

LondonLas Vegas

YXU - LAS

YXULAS

London

dom. 9/28

8:00 pm-8:21 pm

2 stops27h 21m

Las Vegas Harry Reid Intl

jue. 10/2

1:25 pm-5:12 am

2 stops12h 47m

$310

LondonLos Angeles

YXU - LAX

YXULAX

London

vie. 1/16

9:25 am-8:50 pm

2 stops14h 25m

Los Angeles

dom. 1/25

10:55 pm-8:46 am

1 stop6h 51m

$317

LondonPalm Springs

YXU - PSP

YXUPSP

London

dom. 2/22

5:45 am-11:39 am

1 stop8h 54m

Palm Springs

jue. 2/26

12:10 pm-8:46 am

2 stops17h 36m

$323

LondonLos Angeles

YXU - LAX

YXULAX

London

dom. 2/22

8:00 pm-11:00 am

2 stops18h 00m

Los Angeles

jue. 2/26

11:50 am-6:35 am

2 stops15h 45m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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Best time to book a flight from London to California

Have a flexible travel schedule? Discover the best time to fly to California from London 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 London to California

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

Currently, January is the cheapest month in which you can book a flight from London, Ontario to California (average of $246). Flying from London, Ontario to California in March is currently the most expensive (average of $325). 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.

How much does it cost to fly round-trip from London, Ontario to California?

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated septiembre 11, 2025.
Read through reviews of airlines operating flights from London to California, such as Air Canada. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,000 reviews

Food

6.3

Boarding

7.3

Overall

7.1

Entertainment

6.8

Crew

7.8

Comfort

7.1

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.
Air Canada
7.1
Good
10,000 reviews
Air Canada
7.1
Good
10,000 reviews

Food

6.3

Boarding

7.3

Overall

7.1

Entertainment

6.8

Crew

7.8

Comfort

7.1

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.

Related info for your journey

Find useful and relevant information for your journey from London to California. 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 from for flights from London to California?

    Most people fly from London (YXU) if they book a flight from London to California. London is conveniently located just 5.3 mi from London’s city center.

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

    WestJet, Air Canada, and United Airlines can get you from London, Ontario to California in just under 8h 52m. Your travel time can differ by up to 8h 29m. There are 2180 mi between London, Ontario and California. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from London, Ontario to California one-way?

    $155 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Canada and Delta, with prices starting from $179 and $202, respectively.

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

    The most popular route from London, Ontario to California is London - Ontario. You may also consider London - San Francisco or London - Las Vegas Harry Reid Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to California 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 London, Ontario to California?

    Currently, January is the cheapest month in which you can book a flight from London, Ontario to California (average of $246). Flying from London, Ontario to California in March is currently the most expensive (average of $325). 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

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Alternative routes for London to California

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to California

Discover the top airline that operate flights from London to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$222Average$268FlexibilityNo cancel feeOn-time67%

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