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Cheap flights from London, ON to California from C$ 227

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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
2 avr. — 9 avr.1
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 28 mars 2025.

Round-trip from

C$ 343

One-way from

C$ 227

Popular in

June

Cheapest in

November

Average price

C$ 436
WestJet
  • WestJet
  • 1/7-30/7
  • 3 total stops
  • 19h 08m total
  • London to California
Search Deals
Air Canada
  • Air Canada
  • 10/4
  • 1 total stop
  • 8h 54m total
  • London to California
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 114 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 28 mars 2025.

mar. 1/76:00 a.m.YXU - SFO
2 stops10h 59mWestJet
mer. 30/76:05 p.m.SFO - YXU
1 stop8h 09mWestJet
Deal found 27/3C$ 343
jeu. 3/43:25 p.m.YXU - LAS
2 stops12h 24mUnited Airlines
mer. 9/412:59 a.m.LAS - YXU
2 stops10h 49mUnited Airlines
Deal found 27/3C$ 346
jeu. 10/43:25 p.m.YXU - LAS
1 stop9h 30mAir Canada
mar. 9/911:30 p.m.LAS - YXU
1 stop6h 47mAir Canada
Deal found 27/3C$ 363
ven. 25/78:00 p.m.YXU - LAS
1 stop17h 40mWestJet
dim. 27/78:00 a.m.LAS - YXU
1 stop8h 09mWestJet
Deal found 27/3C$ 393
mar. 22/43:25 p.m.YXU - SFO
1 stop9h 12mUnited Airlines
mer. 21/56:30 a.m.SFO - YXU
2 stops23h 48mUnited Airlines
Deal found 27/3C$ 590
mar. 22/43:25 p.m.YXU - SFO
2 stops10h 30mAir Canada
mer. 21/52:15 p.m.SFO - YXU
1 stop16h 03mAir Canada
Deal found 26/3C$ 643
mar. 22/43:25 p.m.YXU - SFO
1 stop9h 12mMultiple Airlines
mer. 21/54:50 p.m.SFO - YXU
1 stop13h 28mMultiple Airlines
Deal found 27/3C$ 773
jeu. 3/48:00 p.m.YXU - LAS
1 stop24h 44mMultiple Airlines
jeu. 10/411:07 p.m.LAS - YXU
1 stop9h 13mMultiple Airlines
Deal found 27/3C$ 879
mar. 8/48:00 p.m.YXU - SMF
2 stops19h 30mWestJet
mer. 9/42:55 p.m.SMF - YXU
2 stops25h 18mWestJet
Deal found 27/3C$ 1,088
mar. 8/43:25 p.m.YXU - SMF
2 stops10h 07mUnited Airlines
mer. 9/41:00 p.m.SMF - YXU
3 stops22h 48mUnited Airlines
Deal found 27/3C$ 1,149

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 28 mars 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

mar. 1/7

6:00 a.m.-1:59 p.m.

2 stops10h 59m

San Francisco

mer. 30/7

6:05 p.m.-5:14 a.m.

1 stop8h 09m

C$ 343

LondonLas Vegas

YXU - LAS

YXULAS

London

jeu. 10/4

3:25 p.m.-9:55 p.m.

1 stop9h 30m

Las Vegas Harry Reid Intl

mar. 9/9

11:30 p.m.-9:17 a.m.

1 stop6h 47m

C$ 363

LondonLas Vegas

YXU - LAS

YXULAS

London

ven. 25/7

8:00 p.m.-10:40 a.m.

1 stop17h 40m

Las Vegas Harry Reid Intl

dim. 27/7

8:00 a.m.-7:09 p.m.

1 stop8h 09m

C$ 393

LondonLas Vegas

YXU - LAS

YXULAS

London

jeu. 22/5

9:55 a.m.-11:34 p.m.

2 stops16h 39m

Las Vegas Harry Reid Intl

ven. 30/5

11:35 p.m.-3:03 p.m.

2 stops12h 28m

C$ 430

LondonSan Francisco

YXU - SFO

YXUSFO

London

mar. 22/4

3:25 p.m.-9:37 p.m.

1 stop9h 12m

San Francisco

mer. 21/5

6:30 a.m.-9:18 a.m.

2 stops23h 48m

C$ 590

LondonSan Francisco

YXU - SFO

YXUSFO

London

mar. 22/4

3:25 p.m.-10:55 p.m.

2 stops10h 30m

San Francisco

mer. 21/5

2:15 p.m.-9:18 a.m.

1 stop16h 03m

C$ 643

LondonSan Francisco

YXU - SFO

YXUSFO

London

mar. 22/4

3:25 p.m.-9:37 p.m.

1 stop9h 12m

San Francisco

mer. 21/5

4:50 p.m.-9:18 a.m.

1 stop13h 28m

C$ 773

LondonSacramento

YXU - SMF

YXUSMF

London

mar. 8/4

8:00 p.m.-12:30 p.m.

2 stops19h 30m

Sacramento Intl

mer. 9/4

2:55 p.m.-7:13 p.m.

2 stops25h 18m

C$ 1,088

LondonSacramento

YXU - SMF

YXUSMF

London

mar. 8/4

3:25 p.m.-10:32 p.m.

2 stops10h 07m

Sacramento Intl

mer. 9/4

1:00 p.m.-2:48 p.m.

3 stops22h 48m

C$ 1,149

LondonLos Angeles

YXU - LAX

YXULAX

London

jeu. 10/4

3:25 p.m.-9:19 p.m.

1 stop8h 54m

C$ 227

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/3

Showing 1-10 of 17 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, September is the cheapest month in which you can book a flight from London, Ontario to California (average of C$ 231). Flying from London, Ontario to California in July is currently the most expensive (average of C$ 314). 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 28 mars 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.

Rainfall in California by month

Plan your trip to California by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in California ranges from 0.0 - 87.0 mm per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit California when rainfall is around 0.0 mm.

Temperature in California by month

Plan your trip to California by taking into account the average temperature totals by month.

If weather is an important factor for your trip to California, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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 28 mars 2025.
Read through reviews of airlines operating flights from London to California, such as United Airlines, WestJet and Air Canada. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,603 reviews
Check prices

Entertainment

7.0

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!
United Airlines
7.4
Good
8,603 reviews
United Airlines
7.4
Good
8,603 reviews
Check prices

Entertainment

7.0

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!
WestJet
7.2
Good
2,785 reviews
United Airlines
7.4
Good
8,603 reviews
Check prices

Entertainment

7.0

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!
Air Canada
7.0
Good
8,986 reviews
United Airlines
7.4
Good
8,603 reviews
Check prices

Entertainment

7.0

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!

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$ 227 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on WestJet and United Airlines, with prices starting from C$ 240 and C$ 250, respectively.

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

    Most travellers choose London - San Francisco, London - Las Vegas Harry Reid Intl 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$ 231). Flying from London, Ontario to California in July is currently the most expensive (average of C$ 314). 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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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 28 mars 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 295AverageC$ 521FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 343AverageC$ 626FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 363AverageC$ 443FlexibilityNo 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.

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