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Cheap flights from London, ON to California from C$ 170

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAX
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

C$ 316

One-way from

C$ 170

Popular in

June

Cheapest in

May

Average price

C$ 798
WestJet
  • WestJet
  • 27/7-3/8
  • 3 total stops
  • 23h 34m total
  • London to California
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WestJet
  • WestJet
  • 19/7
  • 1 total stop
  • 8h 59m total
  • London to California
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 12 June 2025.

Sun 27/76:00 a.m.YXU - SAN
1 stop10h 20mWestJet
Sun 3/81:00 p.m.SAN - YXU
2 stops13h 14mWestJet
Deal found 12/6C$ 316
Mon 28/76:00 a.m.YXU - LAS
2 stops13h 31mWestJet
Wed 30/78:00 a.m.LAS - YXU
1 stop8h 09mWestJet
Deal found 11/6C$ 316
Sun 5/106:15 a.m.YXU - LAX
1 stop7h 15mAir Canada
Sat 25/1011:50 a.m.LAX - YXU
1 stop6h 37mAir Canada
Deal found 11/6C$ 351
Fri 25/76:00 a.m.YXU - LAX
1 stop11h 12mWestJet
Fri 1/87:00 a.m.LAX - YXU
1 stop9h 09mWestJet
Deal found 10/6C$ 357
Fri 26/93:35 p.m.YXU - SFO
1 stop8h 18mAir Canada
Tue 28/1010:45 p.m.SFO - YXU
1 stop7h 20mAir Canada
Deal found 11/6C$ 360
Sun 29/68:00 p.m.YXU - SFO
1 stop19h 05mWestJet
Sat 5/72:45 p.m.SFO - YXU
2 stops11h 29mWestJet
Deal found 11/6C$ 380
Mon 30/69:45 p.m.YXU - SFO
1 stop14h 45mMultiple Airlines
Sat 5/72:45 p.m.SFO - YXU
2 stops11h 29mMultiple Airlines
Deal found 11/6C$ 427
Wed 8/106:15 a.m.YXU - LAX
1 stop7h 15mUnited Airlines
Fri 24/1011:59 p.m.LAX - YXU
2 stops11h 58mUnited Airlines
Deal found 11/6C$ 446
Mon 29/93:35 p.m.YXU - SFO
1 stop8h 57mUnited Airlines
Tue 14/1012:43 a.m.SFO - YXU
2 stops11h 14mUnited Airlines
Deal found 10/6C$ 451
Sun 27/79:55 a.m.YXU - LAS
2 stops9h 45mUnited Airlines
Wed 30/76:00 a.m.LAS - YXU
2 stops12h 27mUnited Airlines
Deal found 11/6C$ 458
Mon 28/76:15 a.m.YXU - LAS
1 stop7h 56mAir Canada
Wed 30/711:05 p.m.LAS - YXU
1 stop7h 12mAir Canada
Deal found 11/6C$ 480
Fri 25/79:45 p.m.YXU - LAS
3 stops24h 53mMultiple Airlines
Fri 1/810:05 a.m.LAS - YXU
2 stops16h 09mMultiple Airlines
Deal found 10/6C$ 488

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 12 June 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 Diego

YXU - SAN

YXUSAN

London

Sun 27/7

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

1 stop10h 20m

San Diego

Sun 3/8

1:00 p.m.-5:14 a.m.

2 stops13h 14m

C$ 316

LondonLas Vegas

YXU - LAS

YXULAS

London

Mon 28/7

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

2 stops13h 31m

Las Vegas Harry Reid Intl

Wed 30/7

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

1 stop8h 09m

C$ 316

LondonLos Angeles

YXU - LAX

YXULAX

London

Sun 5/10

6:15 a.m.-10:30 a.m.

1 stop7h 15m

Los Angeles

Sat 25/10

11:50 a.m.-9:27 p.m.

1 stop6h 37m

C$ 351

LondonLos Angeles

YXU - LAX

YXULAX

London

Fri 25/7

6:00 a.m.-2:12 p.m.

1 stop11h 12m

Los Angeles

Fri 1/8

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

1 stop9h 09m

C$ 357

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 26/9

3:35 p.m.-8:53 p.m.

1 stop8h 18m

San Francisco

Tue 28/10

10:45 p.m.-9:05 a.m.

1 stop7h 20m

C$ 360

LondonSan Francisco

YXU - SFO

YXUSFO

London

Sun 29/6

8:00 p.m.-12:05 p.m.

1 stop19h 05m

San Francisco

Sat 5/7

2:45 p.m.-5:14 a.m.

2 stops11h 29m

C$ 380

LondonSan Francisco

YXU - SFO

YXUSFO

London

Mon 30/6

9:45 p.m.-9:30 a.m.

1 stop14h 45m

San Francisco

Sat 5/7

2:45 p.m.-5:14 a.m.

2 stops11h 29m

C$ 427

LondonLos Angeles

YXU - LAX

YXULAX

London

Wed 8/10

9:55 a.m.-2:43 p.m.

1 stop7h 48m

Los Angeles

Sat 25/10

11:59 p.m.-3:05 p.m.

2 stops12h 06m

C$ 446

LondonSan Francisco

YXU - SFO

YXUSFO

London

Mon 29/9

3:35 p.m.-9:32 p.m.

1 stop8h 57m

San Francisco

Tue 14/10

12:43 a.m.-2:57 p.m.

2 stops11h 14m

C$ 451

LondonLas Vegas

YXU - LAS

YXULAS

London

Sun 27/7

9:55 a.m.-4:40 p.m.

2 stops9h 45m

Las Vegas Harry Reid Intl

Wed 30/7

6:00 a.m.-9:27 p.m.

2 stops12h 27m

C$ 458

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 45 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$ 226). Flying from London, Ontario to California in July is currently the most expensive (average of C$ 306). 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 12 June 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 12 June 2025.
Read through reviews of airlines operating flights from London to California, such as Delta, SWISS and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,868 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,537 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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$ 170 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 Flair Airlines, with prices starting from C$ 201 and C$ 220, 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 - San Jose 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$ 226). Flying from London, Ontario to California in July is currently the most expensive (average of C$ 306). 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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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 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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 282AverageC$ 426FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 305AverageC$ 489FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 328AverageC$ 655FlexibilityNo 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.

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