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$136+ Cheap flights from California to London, ON (YXU)

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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from California to London

Keep the following information in mind while searching for California to London flight deals. Data was last updated June 12, 2025.

Round-trip from

$264
(Mytrip)

One-way from

$136
(Kiwi.com)

Popular in

July

Cheapest in

May
From California to London
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One-way flight from California to London
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Highest demand for flights based on searches. 30% potential increase in price ($170 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
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Find flight deals from California to London

Cheapest flights from California to London
Explore the most affordable flight options available from California to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1011:30 amLAX - YXU
1 stop30h 30mFlair Airlines
Mon 7/149:45 pmYXU - LAX
1 stop16h 00mFlair Airlines
Deal found 6/11$264
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Sun 7/136:05 pmSFO - YXU
1 stop8h 09mWestJet
Sun 7/208:00 pmYXU - SFO
1 stop28h 25mWestJet
Deal found 6/11$296
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/116:05 pmLAX - YXU
1 stop8h 09mMultiple Airlines
Mon 7/149:45 pmYXU - LAX
1 stop16h 00mMultiple Airlines
Deal found 6/11$320
This Air Canada deal was found by Cheapflights users on 6/10. 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.
Tue 9/94:35 pmSFO - YXU
2 stops13h 42mAir Canada
Fri 9/266:15 amYXU - SFO
1 stop9h 43mAir Canada
Deal found 6/10$320
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Sun 7/136:05 pmSFO - YXU
1 stop8h 09mMultiple Airlines
Wed 7/166:00 amYXU - SFO
2 stops29h 00mMultiple Airlines
Deal found 6/12$334
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/251:00 pmSAN - YXU
2 stops13h 14mWestJet
Fri 8/18:00 pmYXU - SAN
2 stops43h 09mWestJet
Deal found 6/10$349
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/251:00 pmSAN - YXU
2 stops13h 14mMultiple Airlines
Fri 8/16:00 amYXU - SAN
3 stops30h 55mMultiple Airlines
Deal found 6/10$354
This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2510:30 pmLAX - YXU
2 stops13h 32mAir Canada
Fri 8/16:15 amYXU - LAX
2 stops16h 17mAir Canada
Deal found 6/10$356
This oojo deal was found by Cheapflights users on 6/10. 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.
Mon 7/147:00 amLAX - YXU
1 stop19h 14mWestJet
Sat 7/198:00 pmYXU - LAX
2 stops25h 10mWestJet
Deal found 6/10$364
This Air Canada deal was found by Cheapflights users on 6/10. 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.
Mon 12/111:50 amSAN - YXU
2 stops18h 15mAir Canada
Mon 12/85:45 amYXU - SAN
1 stop8h 08mAir Canada
Deal found 6/10$413
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1311:05 pmSFO - YXU
2 stops12h 57mUnited Airlines
Wed 7/163:40 pmYXU - SFO
2 stops12h 17mUnited Airlines
Deal found 6/12$417
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/159:55 pmLAX - YXU
1 stop8h 22mUnited Airlines
Mon 7/213:40 pmYXU - LAX
1 stop8h 20mUnited Airlines
Deal found 6/10$422

Cheapflights Fare Finder

Customize your flight search to find flights from California to London 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 June 12, 2025.
Use the filters below to find and compare flights from California to London that are best for you.

Fly from

California

Fly to

London

Route

Depart

Return

Price

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 7/10

11:30 am-9:00 pm

1 stop30h 30m

London

Mon 7/14

9:45 pm-10:45 am

1 stop16h 00m

$264

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 7/13

6:05 pm-5:14 am

1 stop8h 09m

London

Sun 7/20

8:00 pm-9:25 pm

1 stop28h 25m

$296

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Fri 7/11

6:05 pm-5:14 am

1 stop8h 09m

London

Mon 7/14

9:45 pm-10:45 am

1 stop16h 00m

$320

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 9/9

4:35 pm-9:17 am

2 stops13h 42m

London

Fri 9/26

6:15 am-12:58 pm

1 stop9h 43m

$320

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 7/13

6:05 pm-5:14 am

1 stop8h 09m

London

Wed 7/16

6:00 am-8:00 am

2 stops29h 00m

$334

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Fri 7/25

1:00 pm-5:14 am

2 stops13h 14m

London

Fri 8/1

8:00 pm-12:09 pm

2 stops43h 09m

$349

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Fri 7/25

1:00 pm-5:14 am

2 stops13h 14m

London

Fri 8/1

6:00 am-9:55 am

3 stops30h 55m

$354

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Fri 7/25

10:30 pm-3:02 pm

2 stops13h 32m

London

Fri 8/1

6:15 am-7:32 pm

2 stops16h 17m

$356

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Mon 7/14

7:00 am-5:14 am

1 stop19h 14m

London

Sat 7/19

8:00 pm-6:10 pm

2 stops25h 10m

$364

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 12/1

11:50 am-9:05 am

2 stops18h 15m

London

Mon 12/8

5:45 am-10:53 am

1 stop8h 08m

$413

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 28 results
1
2
3

Best time to book a flight from California to London

Have a flexible travel schedule? Discover the best time to fly to London from California 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 California to London

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

Find hourly flight availability from California to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from California to London, Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in London by month

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

In terms of precipitation, rainfall in London, Ontario ranges from 2.8 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. March is typically the driest time to visit London, Ontario when rainfall is around 2.8 in.

Temperature in London by month

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

If weather is an important factor for your trip to London, Ontario, 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 68.0 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines and WestJet from California to London to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,868 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
9,537 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Flair Airlines
6.0
Okay
242 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from California to London. 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 into for flights to London from California?

    London (YXU) is the airport you will fly into if you book a flight from California to London. It is only a 5.3 mi journey from London (YXU) to London’s city center.

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

    The cheapest airline one-way is Flair Airlines, with whom users have recently found tickets for as low as $136. However, be on the lookout for offers from WestJet and Air Canada, as they are both options that can get you from California to London, Ontario for a low price.

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

    When deciding which route to take from California to London, Ontario consider Los Angeles - London, San Francisco - London or San Jose - London as they are the most popular.

  • Can I find deals for flights from California to London that include hotel bookings?

    Yes. In addition to deals on California to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to London.

  • Can I find deals for business class flights from California to London?

    Yes. Cheapflights offers flight deals from California to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 3 airlines flying from California to London

Discover the top 3 airlines that operate flights from California to London. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$138Average$456FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$183Average$373FlexibilityNo cancel feeOn-time69%
WestJetCheapest$306Average$491FlexibilityNo cancel feeOn-time60%

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