What is the cheapest airline that flies from London to California?

Air Canada, WestJet, and United Airlines are the most popular carriers operating from London to California

Which airlines fly to California?

Porter Airlines, Air Canada and WestJet are the top three most popular airlines that fly to California from London, Ontario according to our data. Porter Airlines is the first choice among our users, with 40% of people opting to fly with this airline when travelling to California. Keep in mind that there are 9 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from London Airport to California?

Prices for flights from London Airport to California refresh daily.

How many operators does momondo search for flights from London Airport to California?

The number of operators available for flights from London Airport to California is 3 as of December 2025.

How old do you have to be to fly from London Airport to California?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to California.

What documentation or ID do you need to fly to California?

The travel and health documents required for your trip to California can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at California. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 211 Cheap Flights from London to California in 2025/26

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from London, Ontario to California

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:10 p.m. - 12:26 p.m.

YXU

PSP

19h 16m2 stops

1:20 p.m. - 6:35 a.m.

PSP

YXU

14h 15m2 stops

C$ 327WestJet

Tue, 3 Mar - Tue, 10 Mar

8:10 p.m. - 5:13 p.m.

YXU

PSP

24h 03m1 stop

6:00 p.m. - 6:35 a.m.

PSP

YXU

9h 35m1 stop

C$ 332WestJet

Tue, 3 Mar - Tue, 10 Mar

8:10 p.m. - 9:35 a.m.

YXU

PSP

16h 25m2 stops

6:00 p.m. - 6:35 a.m.

PSP

YXU

9h 35m1 stop

C$ 340WestJet

Tue, 3 Mar - Tue, 10 Mar

7:30 a.m. - 8:15 p.m.

YXU

LAS

39h 45m2 stops

7:05 p.m. - 6:34 a.m.

LAS

YXU

8h 29m1 stop

C$ 404WestJet

Fri, 23 Jan - Mon, 26 Jan

5:10 a.m. - 10:32 a.m.

YXU

LAX

8h 22m1 stop

10:55 p.m. - 8:46 a.m.

LAX

YXU

6h 51m1 stop

C$ 405Air Canada

Sat, 31 Jan - Sat, 7 Feb

8:10 p.m. - 12:12 p.m.

YXU

SFO

19h 02m1 stop

8:42 p.m. - 6:35 a.m.

SFO

YXU

30h 53m2 stops

C$ 409Multiple Airlines

Thu, 22 Jan - Mon, 2 Feb

5:10 a.m. - 10:32 a.m.

YXU

LAX

8h 22m1 stop

6:10 p.m. - 8:46 a.m.

LAX

YXU

11h 36m2 stops

C$ 412Air Canada

Sat, 31 Jan - Sat, 7 Feb

8:10 p.m. - 12:12 p.m.

YXU

SFO

19h 02m1 stop

8:42 p.m. - 6:35 a.m.

SFO

YXU

30h 53m2 stops

C$ 438Multiple Airlines

Thu, 22 Jan - Mon, 2 Feb

5:10 a.m. - 10:54 a.m.

YXU

SFO

8h 44m1 stop

11:15 p.m. - 5:05 p.m.

SFO

YXU

14h 50m2 stops

C$ 479United Airlines

Fri, 30 Jan - Fri, 6 Feb

9:50 a.m. - 8:10 p.m.

YXU

SFO

13h 20m2 stops

9:20 p.m. - 5:05 p.m.

SFO

YXU

16h 45m2 stops

C$ 486United Airlines

Fri, 30 Jan - Fri, 6 Feb

Air Canada flights from London, Ontario to California

Our best Air Canada deals on London, Ontario to California flight tickets

Air Canada

31 Jan

YXU5:10 a.m.London

8h 22m

1 stop

LAX10:32 a.m.Los Angeles

7 Feb

LAX10:55 p.m.Los Angeles

6h 51m

1 stop

YXU8:46 a.m.London

C$ 405

Find similar

Air Canada

31 Jan

YXU5:10 a.m.London

8h 22m

1 stop

LAX10:32 a.m.Los Angeles

7 Feb

LAX6:10 p.m.Los Angeles

11h 36m

2 stops

YXU8:46 a.m.London

C$ 412

Find similar

Air Canada

3 Mar

YXU5:10 a.m.London

9h 43m

1 stop

SAN11:53 a.m.San Diego

17 Mar

SAN12:40 p.m.San Diego

17h 06m

1 stop

YXU8:46 a.m.London

C$ 422

Find similar

United Airlines flights from London, Ontario to California

Our best United Airlines deals on London, Ontario to California flight tickets

United Airlines

30 Jan

YXU5:10 a.m.London

8h 44m

1 stop

SFO10:54 a.m.San Francisco

6 Feb

SFO8:49 a.m.San Francisco

9h 32m

1 stop

YXU9:21 p.m.London

C$ 479

Find similar

United Airlines

30 Jan

YXU9:50 a.m.London

13h 20m

2 stops

SFO8:10 p.m.San Francisco

6 Feb

SFO9:20 p.m.San Francisco

16h 45m

2 stops

YXU5:05 p.m.London

C$ 486

Find similar

United Airlines

12 Jan

YXU5:40 p.m.London

10h 19m

2 stops

LAX12:59 a.m.Los Angeles

13 Jan

LAX5:00 a.m.Los Angeles

13h 21m

2 stops

YXU9:21 p.m.London

C$ 502

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonPalm Springs

YXU - PSP

YXUPSP

London

Tue 3/3

8:10 p.m.-12:26 p.m.

2 stops19h 16m

Palm Springs

Tue 10/3

1:20 p.m.-6:35 a.m.

2 stops14h 15m

C$ 327

LondonPalm Springs

YXU - PSP

YXUPSP

London

Tue 3/3

8:10 p.m.-5:13 p.m.

1 stop24h 03m

Palm Springs

Tue 10/3

6:00 p.m.-6:35 a.m.

1 stop9h 35m

C$ 332

LondonPalm Springs

YXU - PSP

YXUPSP

London

Tue 3/3

8:10 p.m.-9:35 a.m.

2 stops16h 25m

Palm Springs

Tue 10/3

6:00 p.m.-6:35 a.m.

1 stop9h 35m

C$ 340

LondonLas Vegas

YXU - LAS

YXULAS

London

Fri 23/1

7:30 a.m.-8:15 p.m.

2 stops39h 45m

Las Vegas Harry Reid Intl

Mon 26/1

7:05 p.m.-6:34 a.m.

1 stop8h 29m

C$ 404

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 31/1

5:10 a.m.-10:32 a.m.

1 stop8h 22m

Los Angeles

Sat 7/2

10:55 p.m.-8:46 a.m.

1 stop6h 51m

C$ 405

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 22/1

8:10 p.m.-12:12 p.m.

1 stop19h 02m

San Francisco

Mon 2/2

8:42 p.m.-6:35 a.m.

2 stops30h 53m

C$ 409

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 31/1

5:10 a.m.-10:32 a.m.

1 stop8h 22m

Los Angeles

Sat 7/2

6:10 p.m.-8:46 a.m.

2 stops11h 36m

C$ 412

LondonSan Francisco

YXU - SFO

YXUSFO

London

Thu 22/1

8:10 p.m.-12:12 p.m.

1 stop19h 02m

San Francisco

Mon 2/2

8:42 p.m.-6:35 a.m.

2 stops30h 53m

C$ 438

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 30/1

5:10 a.m.-10:54 a.m.

1 stop8h 44m

San Francisco

Fri 6/2

11:15 p.m.-5:05 p.m.

2 stops14h 50m

C$ 479

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 30/1

9:50 a.m.-8:10 p.m.

2 stops13h 20m

San Francisco

Fri 6/2

9:20 p.m.-5:05 p.m.

2 stops16h 45m

C$ 486

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London, Ontario to California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to California?

The cheapest month to fly to California from London, Ontario is in June. Flight prices, which tend to average around C$ 318, are often lower during this time because this is during the off-season. If you’re not able to fly to California in June, then July is your next best option. Flight prices from London, Ontario to California during July average around C$ 346.

What is the cheapest day to depart on your flight to California?

According to our data, Saturday is the cheapest day to fly to California from London, Ontario. The lowest ticket price found for a Saturday departure recently was C$ 453. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from London, Ontario to California on a Sunday will generally be more expensive and average around C$ 669. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to California?

Our data shows that the cheapest London, Ontario to California flights are usually those with departure times in the afternoon. Our users have found flights to California in the afternoon for as low as C$ 477. Flights to California are more costly in the morning, with an average ticket price of C$ 564. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on London, Ontario to California flights?

You could potentially save up to 40% on your flight if you consider stops on a London, Ontario to California flight.

Cheap London, Ontario to California flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to California

Fastest flight time	8h 22m
Direct flights	None

The fastest flight from London, Ontario to California takes 8h 22m

There are no direct flights from London, Ontario to California. There are no popular flight routes from London, Ontario to California.

Search flight deals

When did momondo last update prices for flights from London Airport to California?
Prices for flights from London Airport to California refresh daily.
How many operators does momondo search for flights from London Airport to California?
The number of operators available for flights from London Airport to California is 3 as of December 2025.
How old do you have to be to fly from London Airport to California?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to California.
What documentation or ID do you need to fly to California?
The travel and health documents required for your trip to California can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at California. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from London, Ontario to California

Compare and see reviews for airlines that fly from London, Ontario to California with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom C$ 241	Free Cancellation	Rating 7.2 3,204 reviews	Search WestJet flights
Air Canada	PriceFrom C$ 304	Free Cancellation	Rating 7.1 10,534 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 338	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from London to California?

It is quick and easy to find London to California flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to California that suits you.

Can I find flights from London to California with flexible booking policies on momondo?

Flights from London to California with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to California?

Once all potential London to California flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to California right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to California flights. All you need is a valid email address and we will do the rest; it is that quick and easy.