How long is the flight from London, Ontario to California?

Departing from London, Ontario to California will take you 10h 26m. There are 3331 km between London, Ontario and California. This flight may include one or multiple stops.

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.

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).

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

Most travellers choose London - Las Vegas Harry Reid Intl, London - Los Angeles Los Angeles or London - San Francisco when deciding on the best route from London, Ontario to California.

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

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.

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.

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.

C$ 191+ Cheap Flights from London, ON to California

Cheap flight deals from London to California

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 8 September 2026.

Tue 22/96:10 a.m. -

1 stop8h 50m

Thu 1/106:00 a.m. -

1 stop7h 45m

Deal found 3/9C$ 348

Sat 24/106:10 a.m. -

1 stop8h 50m

Sun 1/114:40 p.m. -

1 stop9h 55m

Deal found 7/9C$ 387

Tue 22/96:10 a.m. -

1 stop8h 50m

Sat 3/101:00 p.m. -

1 stop13h 20m

Deal found 3/9C$ 393

Thu 29/103:25 p.m. -

1 stop9h 05m

Sat 31/108:25 a.m. -

1 stop8h 27m

Deal found 5/9C$ 424

Fri 11/96:10 a.m. -

2 stops12h 35m

Thu 17/96:10 p.m. -

1 stop8h 10m

Deal found 3/9C$ 427

Tue 22/96:10 a.m. -

1 stop8h 50m

Mon 5/104:21 p.m. -

2 stops33h 59m

Deal found 3/9C$ 430

Mon 21/96:20 p.m. -

1 stop7h 44m

Tue 6/108:30 a.m. -

1 stop8h 10m

Deal found 3/9C$ 449

Wed 23/96:10 a.m. -

1 stop8h 50m

Wed 30/96:05 p.m. -

1 stop8h 15m

Deal found 3/9C$ 456

Mon 21/95:55 p.m. -

1 stop21h 05m

Wed 30/96:05 p.m. -

1 stop8h 15m

Deal found 3/9C$ 463

Tue 22/96:10 a.m. -

1 stop8h 50m

Tue 6/1011:40 a.m. -

2 stops14h 40m

Deal found 3/9C$ 474

Mon 7/126:40 a.m. -

2 stops30h 25m

Thu 10/125:00 p.m. -

1 stop9h 35m

Deal found 7/9C$ 480

Tue 20/106:10 a.m. -

1 stop14h 05m

Thu 22/104:30 p.m. -

1 stop9h 50m

Deal found 3/9C$ 481

Best flights from London to California
Discover carefully curated flight deals from London to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Mon 7/126:40 a.m. -

2 stops30h 25m

Thu 10/125:00 p.m. -

1 stop9h 35m

Deal found 7/9C$ 480

Mon 23/115:30 a.m. -

2 stops12h 42m

Thu 26/1110:30 p.m. -

2 stops13h 17m

Deal found 5/9C$ 522

Mon 23/115:30 a.m. -

2 stops10h 26m

Thu 26/117:41 p.m. -

3 stops16h 06m

Deal found 6/9C$ 534

Tue 20/106:10 a.m. -

2 stops16h 27m

Wed 21/107:59 p.m. -

2 stops30h 21m

Deal found 3/9C$ 843

Fri 25/126:40 a.m. -

2 stops12h 35m

Sun 27/127:05 p.m. -

2 stops31h 30m

Deal found 7/9C$ 484

Fri 30/103:25 p.m. -

2 stops11h 54m

Tue 3/1110:30 p.m. -

2 stops13h 17m

Deal found 4/9C$ 528

Sun 27/96:10 a.m. -

2 stops13h 25m

Thu 1/101:20 p.m. -

2 stops13h 00m

Deal found 3/9C$ 484

Fri 30/103:25 p.m. -

2 stops21h 47m

Tue 3/112:08 p.m. -

3 stops21h 39m

Deal found 4/9C$ 539

Thu 29/108:30 p.m. -

2 stops20h 21m

Sat 31/108:25 a.m. -

2 stops22h 12m

Deal found 5/9C$ 531

Mon 19/106:10 a.m. -

2 stops12h 35m

Wed 21/106:10 p.m. -

1 stop8h 10m

Deal found 7/9C$ 489

Sat 7/113:25 p.m. -

2 stops20h 21m

Mon 16/116:36 p.m. -

3 stops17h 11m

Deal found 7/9C$ 550

Mon 7/125:30 a.m. -

1 stop9h 02m

Thu 10/1212:40 p.m. -

2 stops16h 57m

Deal found 3/9C$ 532

Tue 20/106:10 a.m. -

1 stop14h 05m

Fri 23/101:20 p.m. -

2 stops13h 00m

Deal found 3/9C$ 502

Sat 26/95:40 a.m. -

1 stop9h 54m

Mon 5/1010:51 p.m. -

1 stop7h 29m

Deal found 3/9C$ 590

Mon 26/103:25 p.m. -

1 stop9h 09m

Wed 28/107:40 a.m. -

1 stop9h 12m

Deal found 6/9C$ 560

Thu 14/16:40 a.m. -

1 stop31h 35m

Sun 31/15:00 p.m. -

1 stop9h 35m

Deal found 4/9C$ 520

Fri 25/910:05 a.m. -

1 stop8h 19m

Mon 5/1010:51 p.m. -

1 stop7h 29m

Deal found 3/9C$ 590

Mon 26/103:25 p.m. -

1 stop9h 09m

Thu 29/107:40 a.m. -

1 stop9h 12m

Deal found 4/9C$ 561

Mon 21/96:20 p.m. -

1 stop7h 44m

Mon 5/1010:51 p.m. -

1 stop7h 29m

Deal found 3/9C$ 590

Mon 11/16:40 a.m. -

1 stop17h 40m

Sun 31/16:35 p.m. -

2 stops32h 00m

Deal found 6/9C$ 590

Sat 26/93:30 p.m. -

1 stop8h 29m

Sun 4/1010:51 p.m. -

1 stop7h 29m

Deal found 3/9C$ 590

Sat 7/113:25 p.m. -

1 stop9h 09m

Sun 8/117:40 a.m. -

1 stop11h 12m

Deal found 7/9C$ 600

Thu 24/96:10 a.m. -

2 stops12h 34m

Mon 28/910:22 a.m. -

2 stops15h 58m

Deal found 7/9C$ 1,938

Thu 24/93:30 p.m. -

2 stops12h 29m

Sat 3/105:00 a.m. -

2 stops9h 43m

Deal found 3/9C$ 598

Sun 4/106:10 a.m. -

1 stop9h 45m

Sun 11/101:20 p.m. -

2 stops13h 00m

Deal found 6/9C$ 612

Sat 16/13:20 p.m. -

1 stop9h 14m

Sun 31/110:55 p.m. -

1 stop12h 47m

Deal found 6/9C$ 614

Thu 8/109:05 a.m. -

2 stops24h 36m

Tue 13/1011:30 p.m. -

2 stops12h 20m

Deal found 5/9C$ 634

Wed 20/15:30 a.m. -

2 stops19h 44m

Thu 21/18:40 a.m. -

2 stops10h 07m

Deal found 5/9C$ 663

Thu 22/103:30 p.m. -

2 stops20h 59m

Thu 29/106:36 p.m. -

2 stops22h 16m

Deal found 7/9C$ 637

Tue 20/1010:05 a.m. -

3 stops13h 23m

Fri 23/106:00 a.m. -

2 stops12h 40m

Deal found 3/9C$ 641

Find flight deals from London to California

Round-trip from	C$ 348
One-way from	C$ 191
Popular in	March
Cheapest in	November
Average price	C$ 1,191

WestJet
22/9-1/10
2 total stops
16h 35m total
London to California

Search Deals

WestJet
15/10-31/12
1 total stop
11h 00m total
London to California

Search Deals

Highest demand for flights based on searches. 27% potential increase in price (C$ 475 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease (C$ 95 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Sun 22/11

5:30 a.m.-11:10 a.m.

1 stop8h 40m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 246

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Thu 15/10

5:55 p.m.-2:10 p.m.

1 stop23h 15m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 252

LondonLos Angeles

YXU London - LAX Los Angeles Los Angeles

YXULAX

London

Tue 20/10

6:10 a.m.-9:01 p.m.

2 stops17h 51m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 253

LondonLas Vegas

YXU London - LAS Las Vegas Harry Reid Intl

YXULAS

London

Sun 18/10

6:10 a.m.-9:28 a.m.

2 stops30h 18m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 258

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Thu 10/12

5:30 a.m.-1:10 p.m.

1 stop10h 40m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 287

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Thu 15/10

6:10 a.m.-1:16 p.m.

2 stops34h 06m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 287

LondonSanta Ana

YXU London - SNA Santa Ana J. Wayne/Orange Cnty

YXUSNA

London

Sat 7/11

5:30 a.m.-5:25 p.m.

2 stops14h 55m

Santa Ana J. Wayne/Orange Cnty

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 290

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Sun 18/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 292

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Sat 17/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 292

LondonLos Angeles

YXU London - LAX Los Angeles Los Angeles

YXULAX

London

Tue 20/10

6:10 a.m.-12:25 p.m.

1 stop9h 15m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 301

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

YXU-SFO

YXU-SAN

YXU-LAX

YXU-SNA

YXU-LAS

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

YXU-USCA

YXU-SFO

YXU-SAN

YXU-LAX

YXU-SNA

What is the cheapest month to book a flight from London, Ontario to California?

Currently, July is the cheapest month in which you can book a flight from London, Ontario to California (average of C$ 536). Flying from London, Ontario to California in September is currently the most expensive (average of C$ 1,636). 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.

Reviews of airlines servicing California

Check out reviews from past customers who have flown with United Airlines and Air Canada 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.

United Airlines

7.4

Good

10,191 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

United Airlines

7.4

Good

10,191 reviews

United Airlines

7.4

Good

10,191 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Air Canada

7.1

Good

11,603 reviews

United Airlines

7.4

Good

10,191 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

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.
How long is the flight from London, Ontario to California?
Departing from London, Ontario to California will take you 10h 26m. There are 3331 km between London, Ontario and California. This flight may include one or multiple stops.
What are the most popular routes from London, Ontario to California?
Most travellers choose London - Las Vegas Harry Reid Intl, London - Los Angeles Los Angeles or London - San Francisco 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, July is the cheapest month in which you can book a flight from London, Ontario to California (average of C$ 536). Flying from London, Ontario to California in September is currently the most expensive (average of C$ 1,636). 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

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Top 2 airlines flying from London to California

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 325	AverageC$ 752	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 415	AverageC$ 415	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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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.

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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?

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Cheap flights from London, ON to California from C$ 191

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to California

Cheapest flights from London to CaliforniaExplore 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 8 September 2026.

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 8 September 2026.

Best flights from London to CaliforniaDiscover carefully curated flight deals from London to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Discover carefully curated flight deals from London to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Last-minute flights from London to CaliforniaDiscover last-minute flight deals from London to California. Data last updated 8 September 2026 and is based on user searches.

Discover last-minute flight deals from London to California. Data last updated 8 September 2026 and is based on user searches.

One-way flights from London to CaliforniaSearch for one-way flight options from London to California. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.

Search for one-way flight options from London to California. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.

Find flight deals from London to California

Round-trip from

One-way from

Popular in

Cheapest in

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Cheapflights Fare Finder

Use the filters below to find and compare flights from London to California that are best for you.

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.

Cheapflights Insights

What is the cheapest month to book a flight from London, Ontario to California?

Reviews of airlines servicing California

Check out reviews from past customers who have flown with United Airlines and Air Canada 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.

Related info for your journey

What airport do you fly from for flights from London to California?

How long is the flight from London, Ontario to California?

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

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

How can I find direct flights from London to California?

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

What is the cheapest month to book a flight from London, Ontario to California?

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.

Complete your trip

Complete your trip to California by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from London to California by cabin class

Find flights from London to California, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and California flights

Browse other London and California flight options. Last updated on 8 September 2026.

Popular flight searches

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London to California flights

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Top 2 airlines flying from London to California

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How does Cheapflights help users find flights from London to California?

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Can Cheapflights notify me if prices for flights from London to California become cheaper?

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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 8 September 2026.

Best flights from London to California
Discover carefully curated flight deals from London to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Last-minute flights from London to California
Discover last-minute flight deals from London to California. Data last updated 8 September 2026 and is based on user searches.

One-way flights from London to California
Search for one-way flight options from London to California. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.