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

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

Which airlines fly to California?

Porter Airlines, Air Canada and United Airlines 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 August 2026.

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$ 247 Cheap Flights from London, Ontario to California in 2026

Discover deals from 900+ travel sites with momondo.

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.

6:10 a.m. - 12:00 p.m.YXU London-SFO San Francisco

8h 50m1 stop Calgary

6:05 p.m. - 5:20 a.m.SFO San Francisco-YXU London

8h 15m1 stop Calgary

C$ 447WestJet

Fri, 11 Sep - Wed, 16 Sep

6:10 a.m. - 12:00 p.m.YXU London-SFO San Francisco

8h 50m1 stop Calgary

6:05 p.m. - 5:20 a.m.SFO San Francisco-YXU London

8h 15m1 stop Calgary

C$ 457WestJet

Fri, 11 Sep - Wed, 16 Sep

5:55 p.m. - 9:55 p.m.YXU London-SFO San Francisco

31h 00m1 stop Calgary

6:00 a.m. - 4:45 p.m.SFO San Francisco-YXU London

7h 45m1 stop Calgary

C$ 489WestJet

Sun, 20 Sep - Sun, 27 Sep

6:20 p.m. - 10:22 p.m.YXU London-LAS Las Vegas Harry Reid Intl

7h 02m1 stop Toronto Pearson Intl

11:25 p.m. - 9:20 a.m.LAS Las Vegas Harry Reid Intl-YXU London

6h 55m1 stop Toronto Pearson Intl

C$ 524Air Canada

Fri, 25 Sep - Tue, 29 Sep

6:20 p.m. - 10:22 p.m.YXU London-LAS Las Vegas Harry Reid Intl

7h 02m1 stop Toronto Pearson Intl

6:50 a.m. - 9:40 p.m.LAS Las Vegas Harry Reid Intl-YXU London

11h 50m2 stops Vancouver Intl Toronto Pearson Intl

C$ 524Air Canada

Mon, 19 Oct - Sat, 24 Oct

6:20 p.m. - 10:22 p.m.YXU London-LAS Las Vegas Harry Reid Intl

7h 02m1 stop Toronto Pearson Intl

11:25 p.m. - 2:50 p.m.LAS Las Vegas Harry Reid Intl-YXU London

12h 25m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

C$ 528Air Canada

Fri, 25 Sep - Tue, 29 Sep

6:10 a.m. - 12:00 p.m.YXU London-SFO San Francisco

8h 50m1 stop Calgary

7:11 p.m. - 5:20 a.m.SFO San Francisco-YXU London

31h 09m2 stops Las Vegas Harry Reid Intl Calgary

C$ 610Multiple Airlines

Fri, 11 Sep - Wed, 16 Sep

6:10 a.m. - 6:52 p.m.YXU London-LAX Los Angeles Los Angeles

15h 42m2 stops Calgary Phoenix Sky Harbor Intl

6:05 p.m. - 5:20 a.m.LAX Los Angeles Los Angeles-YXU London

8h 15m1 stop Calgary

C$ 617Multiple Airlines

Sat, 10 Oct - Sun, 18 Oct

3:30 p.m. - 9:01 a.m.YXU London-SNA Santa Ana J. Wayne/Orange Cnty

20h 31m2 stops Toronto Pearson Intl San Francisco

8:00 p.m. - 9:20 a.m.SNA Santa Ana J. Wayne/Orange Cnty-YXU London

10h 20m2 stops San Francisco Toronto Pearson Intl

C$ 666United Airlines

Mon, 21 Sep - Mon, 28 Sep

6:20 p.m. - 9:07 a.m.YXU London-SNA Santa Ana J. Wayne/Orange Cnty

17h 47m3 stops Toronto Pearson Intl Chicago O'Hare Intl Denver Intl

6:22 p.m. - 9:20 a.m.SNA Santa Ana J. Wayne/Orange Cnty-YXU London

11h 58m2 stops San Francisco Toronto Pearson Intl

C$ 666United Airlines

Mon, 21 Sep - Mon, 28 Sep

Cheap last-minute flights

Enter your travel dates to find the best prices.

6:10 a.m. - 3:45 p.m.YXU London-LAS Las Vegas Harry Reid Intl

12h 35m2 stops Calgary Edmonton

8:30 a.m. - 7:50 p.m.LAS Las Vegas Harry Reid Intl-YXU London

8h 20m1 stop Calgary

C$ 903WestJet

Fri, 14 Aug - Fri, 21 Aug

5:40 a.m. - 2:44 p.m.YXU London-LAS Las Vegas Harry Reid Intl

12h 04m2 stops Toronto Pearson Intl Chicago O'Hare Intl

7:10 a.m. - 9:40 p.m.LAS Las Vegas Harry Reid Intl-YXU London

11h 30m2 stops Chicago O'Hare Intl Toronto Pearson Intl

C$ 932Air Canada

Fri, 14 Aug - Fri, 21 Aug

8:40 p.m. - 9:40 p.m.YXU London-LAS Las Vegas Harry Reid Intl

28h 00m1 stop Calgary

8:30 a.m. - 7:50 p.m.LAS Las Vegas Harry Reid Intl-YXU London

8h 20m1 stop Calgary

C$ 938WestJet

Fri, 14 Aug - Fri, 21 Aug

2:40 p.m. - 9:40 p.m.YXU London-LAS Las Vegas Harry Reid Intl

34h 00m2 stops Winnipeg Calgary

4:35 p.m. - 5:20 a.m.LAS Las Vegas Harry Reid Intl-YXU London

33h 45m3 stops Edmonton Vancouver Intl Calgary

C$ 1,240WestJet

Fri, 14 Aug - Fri, 21 Aug

5:55 p.m. - 12:32 a.m.YXU London-LAX Los Angeles Los Angeles

33h 37m2 stops Calgary Seattle/Tacoma Intl

6:05 p.m. - 5:20 a.m.LAX Los Angeles Los Angeles-YXU London

8h 15m1 stop Calgary

C$ 1,262WestJet

Wed, 12 Aug - Wed, 19 Aug

5:55 p.m. - 3:24 p.m.YXU London-LAX Los Angeles Los Angeles

24h 29m2 stops Calgary Seattle/Tacoma Intl

12:10 p.m. - 5:20 a.m.LAX Los Angeles Los Angeles-YXU London

14h 10m2 stops Vancouver Intl Calgary

C$ 1,268WestJet

Wed, 12 Aug - Wed, 19 Aug

2:40 p.m. - 10:40 a.m.YXU London-LAS Las Vegas Harry Reid Intl

23h 00m3 stops Winnipeg Saskatoon Calgary

6:07 p.m. - 5:20 a.m.LAS Las Vegas Harry Reid Intl-YXU London

32h 13m3 stops Minneapolis St Paul Vancouver Intl Calgary

C$ 1,506Multiple Airlines

Fri, 14 Aug - Fri, 21 Aug

6:10 a.m. - 4:14 p.m.YXU London-SNA Santa Ana J. Wayne/Orange Cnty

13h 04m2 stops Calgary Salt Lake City

5:04 p.m. - 7:50 p.m.SNA Santa Ana J. Wayne/Orange Cnty-YXU London

23h 46m2 stops Salt Lake City Calgary

C$ 1,700WestJet

Wed, 12 Aug - Wed, 19 Aug

6:10 a.m. - 2:05 p.m.YXU London-LAX Los Angeles Los Angeles

10h 55m1 stop Calgary

6:05 p.m. - 5:20 a.m.LAX Los Angeles Los Angeles-YXU London

8h 15m1 stop Calgary

C$ 1,788WestJet

Wed, 12 Aug - Wed, 19 Aug

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WestJet flights from London, Ontario to California

Our best WestJet deals on London, Ontario to California flight tickets

WestJet

11 Sep

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

16 Sep

SFO6:05 p.m.San Francisco

8h 15m

1 stop

YXU5:20 a.m.London

C$ 447

WestJet

11 Sep

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

16 Sep

SFO6:05 p.m.San Francisco

8h 15m

1 stop

YXU5:20 a.m.London

C$ 457

WestJet

20 Sep

YXU5:55 p.m.London

31h 00m

1 stop

SFO9:55 p.m.San Francisco

27 Sep

SFO6:00 a.m.San Francisco

7h 45m

1 stop

YXU4:45 p.m.London

C$ 489

Air Canada flights from London, Ontario to California

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

Air Canada

25 Sep

YXU6:20 p.m.London

7h 02m

1 stop

LAS10:22 p.m.Las Vegas Harry Reid Intl

29 Sep

LAS11:25 p.m.Las Vegas Harry Reid Intl

6h 55m

1 stop

YXU9:20 a.m.London

C$ 524

Air Canada

25 Sep

YXU6:20 p.m.London

7h 02m

1 stop

LAS10:22 p.m.Las Vegas Harry Reid Intl

29 Sep

LAS11:25 p.m.Las Vegas Harry Reid Intl

12h 25m

2 stops

YXU2:50 p.m.London

C$ 528

Air Canada

19 Oct

YXU6:20 p.m.London

7h 02m

1 stop

LAS10:22 p.m.Las Vegas Harry Reid Intl

24 Oct

LAS11:30 p.m.Las Vegas Harry Reid Intl

12h 17m

1 stop

YXU2:47 p.m.London

C$ 550

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Fri 11/9

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

1 stop8h 50m

San Francisco

Wed 16/9

6:05 p.m.-5:20 a.m.

1 stop8h 15m

C$ 447

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Fri 11/9

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

1 stop8h 50m

San Francisco

Wed 16/9

6:05 p.m.-5:20 a.m.

1 stop8h 15m

C$ 457

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Sun 20/9

5:55 p.m.-9:55 p.m.

1 stop31h 00m

San Francisco

Sun 27/9

6:00 a.m.-4:45 p.m.

1 stop7h 45m

C$ 489

Quickest round-trip

LondonLas Vegas

YXU London - LAS Las Vegas Harry Reid Intl

YXULAS

London

Fri 25/9

6:20 p.m.-10:22 p.m.

1 stop7h 02m

Las Vegas Harry Reid Intl

Tue 29/9

11:25 p.m.-9:20 a.m.

1 stop6h 55m

C$ 524

LondonLas Vegas

YXU London - LAS Las Vegas Harry Reid Intl

YXULAS

London

Mon 19/10

6:20 p.m.-10:22 p.m.

1 stop7h 02m

Las Vegas Harry Reid Intl

Sat 24/10

6:50 a.m.-9:40 p.m.

2 stops11h 50m

C$ 524

LondonLas Vegas

YXU London - LAS Las Vegas Harry Reid Intl

YXULAS

London

Fri 25/9

6:20 p.m.-10:22 p.m.

1 stop7h 02m

Las Vegas Harry Reid Intl

Tue 29/9

11:25 p.m.-2:50 p.m.

2 stops12h 25m

C$ 528

LondonSan Francisco

YXU London - SFO San Francisco

YXUSFO

London

Fri 11/9

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

1 stop8h 50m

San Francisco

Wed 16/9

7:11 p.m.-5:20 a.m.

2 stops31h 09m

C$ 610

LondonLos Angeles

YXU London - LAX Los Angeles Los Angeles

YXULAX

London

Sat 10/10

6:10 a.m.-6:52 p.m.

2 stops15h 42m

Los Angeles Los Angeles

Sun 18/10

6:05 p.m.-5:20 a.m.

1 stop8h 15m

C$ 617

LondonSanta Ana

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

YXUSNA

London

Mon 21/9

3:30 p.m.-9:01 a.m.

2 stops20h 31m

Santa Ana J. Wayne/Orange Cnty

Mon 28/9

8:00 p.m.-9:20 a.m.

2 stops10h 20m

C$ 666

LondonSanta Ana

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

YXUSNA

London

Mon 21/9

6:20 p.m.-9:07 a.m.

3 stops17h 47m

Santa Ana J. Wayne/Orange Cnty

Mon 28/9

6:22 p.m.-9:20 a.m.

2 stops11h 58m

C$ 666

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 August. Flight prices, which tend to average around C$ 291, are often lower during this time because this is during the off-season. If you’re not able to fly to California in August, then July is your next best option. Flight prices from London, Ontario to California during July average around C$ 541.

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

You could potentially save up to 38% 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 37m
Direct flights	None

The fastest flight from London, Ontario to California takes 8h 37m

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

Search flight deals

Frequently asked questions about flying from London, Ontario to California

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 August 2026.
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$ 222	Free Cancellation	Rating 7.2 3,426 reviews	Search WestJet flights
Air Canada	PriceFrom C$ 257	Free Cancellation	Rating 7.1 11,455 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 418	Free Cancellation	Rating 7.4 10,089 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.