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$227+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
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Cheap 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 enero 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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. 5/246:15 am
YXU
-
SFO
1 stop8h 45m
WestJet
lun. 6/86:05 pm
SFO
-
YXU
1 stop8h 20m
WestJet
Deal found 1/27$274
This Kiwi.com deal was found by Cheapflights users on 1/27. 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. 5/266:15 am
YXU
-
SFO
1 stop8h 45m
WestJet
mar. 6/96:05 pm
SFO
-
YXU
1 stop8h 20m
WestJet
Deal found 1/27$298
This oojo deal was found by Cheapflights users on 1/27. 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. 5/255:55 pm
YXU
-
SFO
1 stop31h 00m
WestJet
lun. 6/86:05 pm
SFO
-
YXU
1 stop8h 20m
WestJet
Deal found 1/27$299
This Trip.com deal was found by Cheapflights users on 1/28. 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.
lun. 5/116:15 am
YXU
-
LAS
2 stops12h 30m
WestJet
vie. 5/156:10 pm
LAS
-
YXU
1 stop8h 15m
WestJet
Deal found 1/28$301
This Kiwi.com deal was found by Cheapflights users on 1/27. 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. 5/246:15 am
YXU
-
SFO
1 stop8h 45m
WestJet
mar. 6/96:05 pm
SFO
-
YXU
1 stop8h 20m
WestJet
Deal found 1/27$313
This FlightHub deal was found by Cheapflights users on 1/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/268:10 pm
YXU
-
LAS
2 stops25h 29m
WestJet
jue. 3/51:10 pm
LAS
-
YXU
2 stops14h 25m
WestJet
Deal found 1/28$330
This oojo deal was found by Cheapflights users on 1/28. 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.
mié. 2/258:10 pm
YXU
-
LAS
2 stops19h 09m
WestJet
mié. 3/41:10 pm
LAS
-
YXU
2 stops14h 25m
WestJet
Deal found 1/28$353
This WestJet deal was found by Cheapflights users on 1/28. 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.
lun. 3/98:10 pm
YXU
-
LAX
2 stops17h 50m
WestJet
jue. 3/1212:15 pm
LAX
-
YXU
1 stop15h 20m
WestJet
Deal found 1/28$373
This WestJet deal was found by Cheapflights users on 1/28. 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. 4/266:15 am
YXU
-
SFO
1 stop8h 45m
WestJet
sáb. 5/21:00 pm
SFO
-
YXU
1 stop13h 25m
WestJet
Deal found 1/28$380
This oojo deal was found by Cheapflights users on 1/28. 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.
vie. 3/67:30 am
YXU
-
LAS
2 stops15h 46m
WestJet
sáb. 3/147:05 pm
LAS
-
YXU
1 stop21h 08m
WestJet
Deal found 1/28$394
This Air Canada deal was found by Cheapflights users on 1/28. 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.
sáb. 4/255:10 am
YXU
-
SFO
1 stop8h 35m
Air Canada
dom. 5/37:30 pm
SFO
-
YXU
2 stops13h 13m
Air Canada
Deal found 1/28$397
This Air Canada deal was found by Cheapflights users on 1/26. 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.
lun. 3/95:10 am
YXU
-
LAX
2 stops14h 19m
Air Canada
jue. 3/126:10 pm
LAX
-
YXU
2 stops11h 36m
Air Canada
Deal found 1/26$410

Find flight deals from London to California

Keep the following information in mind while searching for London to California flight deals. Data was last updated enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$274
(Kiwi.com)

One-way from

$227
(Kiwi.com)

Popular in

December

Cheapest in

June

Average price

$312
Provider with most accurate pricing for London-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for London-Los Angeles flights.
Search Deals
From London to California
Search Deals
One-way flight from London to California
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 29, 2026.
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

LondonSan Francisco

YXU - SFO

YXUSFO

London

dom. 5/24

6:15 am-12:00 pm

1 stop8h 45m

San Francisco

lun. 6/8

6:05 pm-5:25 am

1 stop8h 20m

$274

LondonLas Vegas

YXU - LAS

YXULAS

London

lun. 5/11

6:15 am-3:45 pm

2 stops12h 30m

Las Vegas Harry Reid Intl

vie. 5/15

6:10 pm-5:25 am

1 stop8h 15m

$301

LondonLas Vegas

YXU - LAS

YXULAS

London

jue. 2/26

8:10 pm-6:39 pm

2 stops25h 29m

Las Vegas Harry Reid Intl

jue. 3/5

1:10 pm-6:35 am

2 stops14h 25m

$330

LondonLas Vegas

YXU - LAS

YXULAS

London

mié. 2/25

8:10 pm-12:19 pm

2 stops19h 09m

Las Vegas Harry Reid Intl

mié. 3/4

1:10 pm-6:35 am

2 stops14h 25m

$353

LondonLos Angeles

YXU - LAX

YXULAX

London

lun. 3/9

8:10 pm-11:00 am

2 stops17h 50m

Los Angeles

jue. 3/12

12:15 pm-6:35 am

1 stop15h 20m

$373

LondonSan Francisco

YXU - SFO

YXUSFO

London

dom. 4/26

6:15 am-12:00 pm

1 stop8h 45m

San Francisco

sáb. 5/2

1:00 pm-5:25 am

1 stop13h 25m

$380

LondonLas Vegas

YXU - LAS

YXULAS

London

vie. 3/6

7:30 am-8:16 pm

2 stops15h 46m

Las Vegas Harry Reid Intl

sáb. 3/14

7:05 pm-7:13 pm

1 stop21h 08m

$394

LondonSan Francisco

YXU - SFO

YXUSFO

London

sáb. 4/25

5:10 am-12:32 pm

2 stops10h 22m

San Francisco

dom. 5/3

7:30 pm-11:43 am

2 stops13h 13m

$397

LondonSan Francisco

YXU - SFO

YXUSFO

London

sáb. 4/25

5:10 am-3:32 pm

2 stops13h 22m

San Francisco

sáb. 5/2

7:30 pm-11:43 am

2 stops13h 13m

$397

LondonPalm Springs

YXU - PSP

YXUPSP

London

dom. 3/1

8:10 pm-12:26 pm

2 stops19h 16m

Palm Springs

mié. 3/4

10:25 am-6:35 am

2 stops41h 10m

$411

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 50 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, August is the cheapest month in which you can book a flight from London, Ontario to California (average of $80). Flying from London, Ontario to California in December is currently the most expensive (average of $198). 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.

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 enero 29, 2026.
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
10,667 reviews

Entertainment

6.8

Crew

7.8

Comfort

7.1

Overall

7.1

Boarding

7.3

Food

6.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,667 reviews
Air Canada
7.1
Good
10,667 reviews

Entertainment

6.8

Crew

7.8

Comfort

7.1

Overall

7.1

Boarding

7.3

Food

6.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

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 45m. Your travel time can differ by up to 9h 10m. 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 most popular routes from London, Ontario to California?

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

  • 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, August is the cheapest month in which you can book a flight from London, Ontario to California (average of $80). Flying from London, Ontario to California in December is currently the most expensive (average of $198). 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

Browse thousands of different options on Cheapflights for your next trip

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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 enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$222Average$268FlexibilityNo cancel feeOn-time67%

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