Find flights
When to book
Airlines
FAQs

Cheap flights from London, ON to California from C$ 225

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to California

Enter your travel dates to find the best prices.

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 27 July 2026.

Fri 16/106:10 a.m.
YXU
-
SAN
1 stop11h 00m
WestJet
Mon 19/103:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Deal found 26/7C$ 383
Sat 12/96:10 a.m.
YXU
-
LAX
1 stop9h 15m
WestJet
Wed 16/96:05 p.m.
LAX
-
YXU
1 stop8h 15m
WestJet
Deal found 24/7C$ 414
Sat 5/96:10 a.m.
YXU
-
LAX
1 stop10h 55m
WestJet
Fri 11/96:05 p.m.
LAX
-
YXU
1 stop8h 15m
WestJet
Deal found 22/7C$ 433
Sat 5/96:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Sat 12/91:00 p.m.
SFO
-
YXU
1 stop13h 20m
WestJet
Deal found 22/7C$ 433
Thu 8/106:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Tue 13/106:00 a.m.
SFO
-
YXU
1 stop20h 20m
WestJet
Deal found 26/7C$ 437
Fri 16/106:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Tue 20/106:00 a.m.
SFO
-
YXU
1 stop20h 20m
WestJet
Deal found 26/7C$ 438
Thu 10/96:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Mon 14/96:00 a.m.
SFO
-
YXU
1 stop7h 45m
WestJet
Deal found 22/7C$ 452
Sun 6/96:10 a.m.
YXU
-
LAX
1 stop9h 15m
WestJet
Sun 13/96:05 p.m.
LAX
-
YXU
1 stop8h 15m
WestJet
Deal found 23/7C$ 472
Thu 10/95:40 a.m.
YXU
-
SFO
2 stops12h 41m
Air Canada
Mon 14/96:40 a.m.
SFO
-
YXU
2 stops12h 00m
Air Canada
Deal found 22/7C$ 475
Tue 15/96:10 a.m.
YXU
-
SAN
1 stop11h 00m
WestJet
Sat 19/93:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Deal found 23/7C$ 480
Sun 6/96:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Sun 13/96:00 a.m.
SFO
-
YXU
1 stop20h 20m
WestJet
Deal found 23/7C$ 482
Fri 25/96:10 a.m.
YXU
-
LAX
2 stops12h 50m
WestJet
Tue 29/96:05 p.m.
LAX
-
YXU
1 stop8h 15m
WestJet
Deal found 25/7C$ 485

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 27 July 2026.

Round-trip from

C$ 383

One-way from

C$ 225

Popular in

March

Cheapest in

November
WestJet
  • WestJet
  • 16/10-19/10
  • 2 total stops
  • 21h 50m total
  • London to California
Search Deals
WestJet
  • WestJet
  • 8/9
  • 1 total stop
  • 9h 15m total
  • London to California
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (C$ 466 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 86 potential savings vs. average RT price).
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 629,999 searches. Data last updated 27 July 2026.
Use the filters below to find and compare flights from London to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 12/9

6:10 a.m.-6:20 p.m.

2 stops15h 10m

Los Angeles

Wed 16/9

6:05 p.m.-5:20 a.m.

1 stop8h 15m

C$ 420

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 5/9

6:10 a.m.-2:05 p.m.

1 stop10h 55m

Los Angeles

Fri 11/9

6:05 p.m.-5:20 a.m.

1 stop8h 15m

C$ 433

LondonSan Francisco

YXU - SFO

YXUSFO

London

Sat 5/9

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Sat 12/9

1:00 p.m.-5:20 a.m.

1 stop13h 20m

C$ 433

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 8/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Tue 13/10

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

1 stop20h 20m

C$ 437

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 16/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Tue 20/10

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

1 stop20h 20m

C$ 438

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 10/9

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Mon 14/9

6:00 a.m.-4:45 p.m.

1 stop7h 45m

C$ 454

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 10/9

3:30 p.m.-8:59 p.m.

1 stop8h 29m

San Francisco

Mon 14/9

6:40 a.m.-9:40 p.m.

2 stops12h 00m

C$ 475

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 25/9

6:10 a.m.-4:00 p.m.

2 stops12h 50m

Los Angeles

Tue 29/9

6:05 p.m.-5:20 a.m.

1 stop8h 15m

C$ 485

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 9/10

5:55 p.m.-12:25 p.m.

1 stop21h 30m

Los Angeles

Sun 18/10

6:05 p.m.-5:20 a.m.

1 stop8h 15m

C$ 503

LondonLas Vegas

YXU - LAS

YXULAS

London

Thu 20/8

6:10 a.m.-3:45 p.m.

2 stops12h 35m

Las Vegas Harry Reid Intl

Thu 27/8

6:10 p.m.-5:20 a.m.

1 stop8h 10m

C$ 506

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/7

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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, July is the cheapest month in which you can book a flight from London, Ontario to California (average of C$ 547). Flying from London, Ontario to California in February is currently the most expensive (average of C$ 1,570). 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?

Airfare is below average for this route at the moment.
London, Ontario to California flights typically cost between C$ 757 and C$ 962 in September.
The cheapest round-trip price found within the last 5 days was C$ 414 on WestJet (12 Sep-16 Sep).

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 27 July 2026.
Check out reviews from past customers who have flown with United Airlines,WestJet, andAir Canada from London to California to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,041 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
10,041 reviews
United Airlines
7.4
Good
10,041 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
WestJet
7.2
Good
3,415 reviews
United Airlines
7.4
Good
10,041 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Air Canada
7.1
Good
11,387 reviews
United Airlines
7.4
Good
10,041 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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?

    For a flight from London to California, you will be flying from London. London (YXU) is just 8.6 km from the centre of the city.

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

    Departing from London, Ontario to California will take you 9h 56m. There are 3335 km between London, Ontario and California. This flight may include one or multiple stops.

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

    Most travellers choose London - Los Angeles, London - San Francisco or London - Las Vegas Harry Reid Intl when deciding on the best route from London, Ontario to California.

  • 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, July is the cheapest month in which you can book a flight from London, Ontario to California (average of C$ 547). Flying from London, Ontario to California in February is currently the most expensive (average of C$ 1,570). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to California

See prices for flight routes from nearby airports that may be better suited for you.
Toronto Island to Newark flights
Pearson Intl to Newark flights
Pearson Intl to John F Kennedy Intl flights
Pearson Intl to LaGuardia flights
Pearson Intl to Fort Lauderdale flights
Toronto Island to LaGuardia flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Toronto Island to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Pearson Intl to Los Angeles flights
Pearson Intl to Orlando flights
Hamilton to Newark flights
Pierre Elliott Trudeau Intl to Miami flights
Pierre Elliott Trudeau Intl to Newark flights
Pearson Intl to Las Vegas flights
Pearson Intl to Dallas/Fort Worth flights
Pearson Intl to San Francisco flights
Pearson Intl to Miami flights
Pearson Intl to O'Hare Intl flights
Pearson Intl to Seattle flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pearson Intl to Nashville flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to Dulles Intl flights
Pearson Intl to Hobby flights
Pearson Intl to Boston flights
Pierre Elliott Trudeau Intl to Orlando flights
Pearson Intl to Reagan-National flights
Toronto Island to Fort Lauderdale flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Toronto Island to Orlando flights
Pearson Intl to Midway flights
Toronto Island to Midway flights
Pearson Intl to George Bush Intcntl flights
Pearson Intl to Atlanta flights
Pearson Intl to Ontario flights
Toronto Island to Boston flights
Pearson Intl to San Diego flights
Toronto Island to O'Hare Intl flights
Pearson Intl to Tampa flights
Toronto Island to Las Vegas flights
Pierre Elliott Trudeau Intl to Hobby flights
Pierre Elliott Trudeau Intl to San Francisco flights
Pearson Intl to Philadelphia flights
Pierre Elliott Trudeau Intl to Nashville flights
Hamilton to Fort Lauderdale flights
Pearson Intl to Denver flights
Ottawa to Newark flights
Toronto Island to Miami flights

Top 3 airlines flying from London to California

Discover the top 3 airlines 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 629,999 searches. Data last updated 27 July 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 224AverageC$ 450FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 260AverageC$ 637FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 423AverageC$ 423FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to California?

Cheapflights makes it easy to find London to California flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to California?

Cheapflights helps you find that perfect flight to California from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to California with no change fees?

Yes! Cheapflights helps users easily find flights from London to California with no change fees.

Can Cheapflights notify me if prices for flights from London to California become cheaper?

Of course! You can now track prices for flights from London to California and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.