Find flights
When to book
Airlines
FAQs

Cheap flights from London, ON to California from C$ 233

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
3 Aug — 10 Aug1
1 adult

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 29 July 2025.

Round-trip from

C$ 351

One-way from

C$ 233

Popular in

July

Cheapest in

June

Average price

C$ 728
WestJet
  • WestJet
  • 28/8-6/9
  • 2 total stops
  • 17h 33m total
  • London to California
Search Deals
WestJet
  • WestJet
  • 12/10
  • 1 total stop
  • 9h 16m total
  • London to California
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 29 July 2025.

Thu 28/86:00 a.m.YXU - SFO
1 stop8h 56mWestJet
Sat 6/97:30 a.m.SFO - YXU
1 stop8h 37mWestJet
Deal found 27/7C$ 351
Thu 28/86:00 a.m.YXU - LAX
2 stops32h 45mWestJet
Sat 6/96:05 p.m.LAX - YXU
1 stop8h 07mWestJet
Deal found 27/7C$ 369
Mon 1/96:00 a.m.YXU - LAS
2 stops13h 31mWestJet
Sat 6/98:00 a.m.LAS - YXU
1 stop8h 07mWestJet
Deal found 27/7C$ 383
Fri 3/103:40 p.m.YXU - LAX
1 stop8h 13mAir Canada
Wed 22/109:55 p.m.LAX - YXU
1 stop8h 22mAir Canada
Deal found 27/7C$ 421
Wed 10/93:50 p.m.YXU - SFO
1 stop8h 03mAir Canada
Tue 23/94:35 p.m.SFO - YXU
2 stops13h 44mAir Canada
Deal found 26/7C$ 424
Fri 5/93:50 p.m.YXU - LAS
1 stop9h 23mAir Canada
Sat 20/911:20 p.m.LAS - YXU
1 stop6h 59mAir Canada
Deal found 27/7C$ 440
Sun 12/106:00 a.m.YXU - PSP
1 stop9h 16mWestJet
Thu 4/124:05 p.m.PSP - YXU
2 stops24h 07mWestJet
Deal found 27/7C$ 443
Thu 11/96:00 a.m.YXU - SAN
1 stop10h 20mWestJet
Thu 18/91:00 p.m.SAN - YXU
2 stops13h 12mWestJet
Deal found 28/7C$ 471
Thu 11/96:00 a.m.YXU - SFO
1 stop8h 54mMultiple Airlines
Thu 18/910:15 a.m.SFO - YXU
2 stops15h 57mMultiple Airlines
Deal found 28/7C$ 508
Thu 23/106:15 a.m.YXU - SAN
2 stops12h 35mAir Canada
Tue 28/106:10 p.m.SAN - YXU
2 stops11h 36mAir Canada
Deal found 27/7C$ 513
Thu 2/106:15 a.m.YXU - LAX
1 stop9h 18mUnited Airlines
Fri 24/108:20 p.m.LAX - YXU
2 stops9h 57mUnited Airlines
Deal found 27/7C$ 527
Tue 14/106:15 a.m.YXU - PSP
2 stops16h 58mUnited Airlines
Sat 6/125:15 a.m.PSP - YXU
2 stops13h 06mUnited Airlines
Deal found 27/7C$ 532

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 29 July 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

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 28/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

Sat 6/9

7:30 a.m.-7:07 p.m.

1 stop8h 37m

C$ 351

LondonLos Angeles

YXU - LAX

YXULAX

London

Thu 28/8

6:00 a.m.-11:45 a.m.

2 stops32h 45m

Los Angeles

Sat 6/9

6:05 p.m.-5:12 a.m.

1 stop8h 07m

C$ 369

LondonLas Vegas

YXU - LAS

YXULAS

London

Mon 1/9

6:00 a.m.-4:31 p.m.

2 stops13h 31m

Las Vegas Harry Reid Intl

Sat 6/9

8:00 a.m.-7:07 p.m.

1 stop8h 07m

C$ 383

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 3/10

3:40 p.m.-8:53 p.m.

1 stop8h 13m

Los Angeles

Wed 22/10

9:55 p.m.-9:17 a.m.

1 stop8h 22m

C$ 421

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 10/9

3:50 p.m.-8:53 p.m.

1 stop8h 03m

San Francisco

Tue 23/9

4:35 p.m.-9:19 a.m.

2 stops13h 44m

C$ 424

LondonLas Vegas

YXU - LAS

YXULAS

London

Fri 5/9

3:50 p.m.-10:13 p.m.

1 stop9h 23m

Las Vegas Harry Reid Intl

Sat 20/9

11:20 p.m.-9:19 a.m.

1 stop6h 59m

C$ 440

LondonPalm Springs

YXU - PSP

YXUPSP

London

Sun 12/10

6:00 a.m.-12:16 p.m.

1 stop9h 16m

Palm Springs

Thu 4/12

4:05 p.m.-7:12 p.m.

2 stops24h 07m

C$ 443

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 11/9

6:00 a.m.-1:20 p.m.

1 stop10h 20m

San Diego

Thu 18/9

1:00 p.m.-5:12 a.m.

2 stops13h 12m

C$ 471

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 11/9

6:00 a.m.-11:54 a.m.

1 stop8h 54m

San Francisco

Thu 18/9

10:15 a.m.-5:12 a.m.

2 stops15h 57m

C$ 508

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 23/10

6:15 a.m.-3:50 p.m.

2 stops12h 35m

San Diego

Tue 28/10

6:10 p.m.-8:46 a.m.

2 stops11h 36m

C$ 513

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

Showing 1-10 of 48 results
1
2
3
...
5

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, September is the cheapest month in which you can book a flight from London, Ontario to California (average of C$ 229). Flying from London, Ontario to California in March is currently the most expensive (average of C$ 297). 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.

What is the cheapest time of day to fly from YXU to CA?

Find hourly flight availability from London to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London, Ontario to California as you normally would.

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 29 July 2025.
Check out reviews from past customers who have flown with Delta,United Airlines, andWestJet 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.
Delta
8.0
Very good
7,977 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,973 reviews
Delta
8.0
Very good
7,977 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.1
Good
9,822 reviews
Delta
8.0
Very good
7,977 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Flair Airlines
6.0
Okay
247 reviews
Delta
8.0
Very good
7,977 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    C$ 233 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 United Airlines, with prices starting from C$ 233 and C$ 255, respectively.

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

    Most travellers choose London - Las Vegas Harry Reid Intl, London - San Francisco or London - Los Angeles 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, September is the cheapest month in which you can book a flight from London, Ontario to California (average of C$ 229). Flying from London, Ontario to California in March is currently the most expensive (average of C$ 297). 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.
Pearson Intl to Newark flights
Pearson Intl to John F Kennedy Intl flights
Pearson Intl to LaGuardia flights
Pearson Intl to Las Vegas flights
Pearson Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pearson Intl to Miami flights
Toronto Island to Newark flights
Pierre Elliott Trudeau Intl to Miami flights
Pearson Intl to Fort Lauderdale flights
Pearson Intl to Orlando flights
Pearson Intl to O'Hare Intl flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Orlando flights
Pearson Intl to Hobby flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Pearson Intl to Seattle flights
Pearson Intl to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to Newark flights
Pearson Intl to George Bush Intcntl flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to Nashville flights
Pearson Intl to Boston flights
Toronto Island to Fort Lauderdale flights
Pearson Intl to Midway flights
Pearson Intl to Atlanta flights
Pearson Intl to San Diego flights
Toronto Island to Midway flights
Pearson Intl to Tampa flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Toronto Island to Orlando flights
Pearson Intl to Honolulu flights
Pearson Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Nashville flights
Pearson Intl to Reagan-National flights
Pierre Elliott Trudeau Intl to San Francisco flights
Toronto Island to Boston flights
Pierre Elliott Trudeau Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Reagan-National flights
Pearson Intl to Austin flights
Pearson Intl to Ontario flights
Pierre Elliott Trudeau Intl to Boston flights
Pierre Elliott Trudeau Intl to Honolulu flights
Toronto Island to Las Vegas flights
Ottawa to Fort Lauderdale flights
Ottawa to Newark flights
Pearson Intl to Denver flights
Pearson Intl to Sky Harbor Intl 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 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 283AverageC$ 398FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 306AverageC$ 491FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 329AverageC$ 654FlexibilityNo cancel feeOn-time67%
Search Air Canada 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.