HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$288+ Cheap flights from California to London, ON (YXU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from California to London with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$288
(Trip.com)

Popular in

May

Cheapest in

February

Average price

$382
Provider with most accurate pricing for Los Angeles-London flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-London flights.
Search Deals
From California to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($90 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 1, 2025.

This oojo deal was found by Cheapflights users on 3/31. 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.
Fri 5/97:00 amLAX - YXU
1 stop9h 09mWestJet
Sun 5/118:00 pmYXU - LAX
2 stops18h 45mWestJet
Deal found 3/31$320
This WestJet deal was found by Cheapflights users on 3/31. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/156:05 pmSFO - YXU
1 stop8h 09mWestJet
Thu 5/228:00 pmYXU - SFO
2 stops20h 59mWestJet
Deal found 3/31$352
This Air Canada deal was found by Cheapflights users on 3/31. 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.
Thu 5/153:40 pmLAX - YXU
1 stop14h 39mAir Canada
Thu 5/223:45 pmYXU - LAX
1 stop8h 14mAir Canada
Deal found 3/31$353
This Air Canada deal was found by Cheapflights users on 3/31. 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 4/298:30 amSFO - YXU
1 stop8h 49mAir Canada
Tue 5/66:15 amYXU - SFO
1 stop9h 57mAir Canada
Deal found 3/31$362
This Mytrip deal was found by Cheapflights users on 3/31. 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 5/1511:30 amLAX - YXU
3 stops14h 44mMultiple Airlines
Thu 5/228:00 pmYXU - LAX
2 stops27h 23mMultiple Airlines
Deal found 3/31$448
This Mytrip deal was found by Cheapflights users on 3/31. 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.
Tue 4/2910:15 amSFO - YXU
2 stops29h 54mMultiple Airlines
Tue 5/68:00 pmYXU - SFO
2 stops16h 30mMultiple Airlines
Deal found 3/31$453
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 5/1412:43 amSFO - YXU
2 stops17h 46mUnited Airlines
Thu 5/223:45 pmYXU - SFO
1 stop8h 52mUnited Airlines
Deal found 3/31$495
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 5/1412:56 amLAX - YXU
2 stops11h 08mUnited Airlines
Thu 5/226:15 amYXU - LAX
1 stop7h 26mUnited Airlines
Deal found 3/31$498
This Mytrip deal was found by Cheapflights users on 3/31. 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 5/162:40 pmSMF - YXU
2 stops11h 34mMultiple Airlines
Fri 5/238:00 pmYXU - SMF
2 stops25h 42mMultiple Airlines
Deal found 3/31$523
This Mytrip deal was found by Cheapflights users on 3/31. 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.
Sun 4/137:54 pmSJC - YXU
2 stops12h 26mMultiple Airlines
Wed 4/168:00 pmYXU - SJC
3 stops25h 57mMultiple Airlines
Deal found 3/31$966
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Thu 5/1512:35 pmSJC - YXU
2 stops17h 44mUnited Airlines
Thu 5/226:15 amYXU - SJC
2 stops10h 06mUnited Airlines
Deal found 3/31$969
This Air Canada deal was found by Cheapflights users on 3/31. 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.
Sun 4/136:27 pmSJC - YXU
2 stops22h 52mAir Canada
Wed 4/165:15 amYXU - SJC
2 stops15h 16mAir Canada
Deal found 3/31$979

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 April 1, 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

Fri 5/9

7:00 am-7:09 pm

1 stop9h 09m

London

Sun 5/11

8:00 pm-11:45 am

2 stops18h 45m

$320

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 5/15

6:05 pm-5:14 am

1 stop8h 09m

London

Thu 5/22

8:00 pm-1:59 pm

2 stops20h 59m

$352

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 5/15

3:40 pm-9:19 am

1 stop14h 39m

London

Thu 5/22

3:45 pm-8:59 pm

1 stop8h 14m

$353

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 4/29

8:30 am-8:19 pm

1 stop8h 49m

London

Tue 5/6

6:15 am-1:12 pm

1 stop9h 57m

$362

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Thu 5/15

11:30 am-5:14 am

3 stops14h 44m

London

Thu 5/22

8:00 pm-8:23 pm

2 stops27h 23m

$448

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Tue 4/29

10:15 am-7:09 pm

2 stops29h 54m

London

Tue 5/6

8:00 pm-9:30 am

2 stops16h 30m

$453

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Wed 5/14

12:43 am-9:29 pm

2 stops17h 46m

London

Thu 5/22

3:45 pm-9:37 pm

1 stop8h 52m

$495

Los AngelesLondon

LAX - YXU

LAXYXU

Los Angeles

Wed 5/14

12:56 am-3:04 pm

2 stops11h 08m

London

Thu 5/22

6:15 am-10:41 am

1 stop7h 26m

$498

SacramentoLondon

SMF - YXU

SMFYXU

Sacramento Intl

Fri 5/16

2:40 pm-5:14 am

2 stops11h 34m

London

Fri 5/23

8:00 pm-6:42 pm

2 stops25h 42m

$523

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Sun 4/13

7:54 pm-11:20 am

2 stops12h 26m

London

Wed 4/16

8:00 pm-6:57 pm

3 stops25h 57m

$966

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 13 results
1
2

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 April 1, 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 April 1, 2025.
Peruse reviews from past customers who have flown with United Airlines, WestJet and Air Canada 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.
United Airlines
7.4
Good
8,614 reviews

Entertainment

7.0

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,614 reviews
United Airlines
7.4
Good
8,614 reviews

Entertainment

7.0

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
WestJet
7.2
Good
2,789 reviews
United Airlines
7.4
Good
8,614 reviews

Entertainment

7.0

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.0
Good
9,012 reviews
United Airlines
7.4
Good
8,614 reviews

Entertainment

7.0

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 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

Traveling to a place near California?

Book flights to California if you plan to visit one of these locations
Grand Bend

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 California to London

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

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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$183Average$363FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$192Average$678FlexibilityNo cancel feeOn-time67%
WestJetCheapest$306Average$501FlexibilityNo cancel feeOn-time60%
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.