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 37% of people opting to fly with this airline when travelling to California. Keep in mind that there are 10 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

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

Air Canada, United Airlines, and Delta are the most popular carriers operating from London 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 March 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$ 252 Cheap Flights from London to California in 2026

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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.

5:10 a.m. - 10:55 a.m.

YXU

SFO

8h 45m

1 stop

8:05 a.m. - 9:38 p.m.

SFO

YXU

10h 33m

2 stops

C$ 472Air Canada

Tue, 14 Apr - Tue, 5 May

5:10 a.m. - 10:55 a.m.

YXU

SFO

8h 45m

1 stop

8:05 a.m. - 9:38 p.m.

SFO

YXU

10h 33m

2 stops

C$ 480Air Canada

Tue, 14 Apr - Tue, 5 May

9:25 a.m. - 9:22 p.m.

YXU

SFO

14h 57m

2 stops

8:05 a.m. - 9:38 p.m.

SFO

YXU

10h 33m

2 stops

C$ 484Air Canada

Wed, 15 Apr - Tue, 5 May

5:10 a.m. - 10:55 a.m.

YXU

SFO

8h 45m

1 stop

2:30 p.m. - 8:44 a.m.

SFO

YXU

15h 14m

1 stop

C$ 494Air Canada

Tue, 14 Apr - Tue, 28 Apr

5:10 a.m. - 12:30 p.m.

YXU

SFO

10h 20m

2 stops

4:15 p.m. - 8:44 a.m.

SFO

YXU

13h 29m

1 stop

C$ 502Air Canada

Tue, 14 Apr - Tue, 28 Apr

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

YXU

SFO

8h 50m

1 stop

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

SFO

YXU

7h 45m

1 stop

C$ 505WestJet

Fri, 29 May - Sat, 30 May

8:00 a.m. - 12:05 p.m.

YXU

SFO

31h 05m

1 stop

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

SFO

YXU

7h 45m

1 stop

C$ 516WestJet

Tue, 14 Apr - Tue, 5 May

9:30 a.m. - 9:23 p.m.

YXU

PSP

14h 53m

2 stops

4:13 p.m. - 5:33 p.m.

PSP

YXU

22h 20m

3 stops

C$ 643United Airlines

Fri, 8 May - Tue, 12 May

9:30 a.m. - 3:35 p.m.

YXU

LAX

9h 05m

1 stop

12:15 a.m. - 9:38 p.m.

LAX

YXU

18h 23m

2 stops

C$ 643United Airlines

Tue, 5 May - Mon, 11 May

6:10 a.m. - 2:10 p.m.

YXU

SAN

11h 00m

1 stop

3:30 p.m. - 5:20 a.m.

SAN

YXU

10h 50m

1 stop

C$ 724Delta

Wed, 6 May - Fri, 8 May

Air Canada flights from London, Ontario to California

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

Air Canada

14 Apr

YXU5:10 a.m.London

8h 45m

1 stop

SFO10:55 a.m.San Francisco

5 May

SFO8:05 a.m.San Francisco

10h 33m

2 stops

YXU9:38 p.m.London

C$ 472

Air Canada

14 Apr

YXU5:10 a.m.London

10h 20m

2 stops

SFO12:30 p.m.San Francisco

5 May

SFO8:05 a.m.San Francisco

10h 33m

2 stops

YXU9:38 p.m.London

C$ 480

Air Canada

15 Apr

YXU9:25 a.m.London

14h 57m

2 stops

SFO9:22 p.m.San Francisco

5 May

SFO8:05 a.m.San Francisco

10h 33m

2 stops

YXU9:38 p.m.London

C$ 484

United Airlines flights from London, Ontario to California

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

United Airlines

17 Apr

YXU5:10 a.m.London

8h 45m

1 stop

SFO10:55 a.m.San Francisco

29 Apr

SFO6:29 p.m.San Francisco

19h 35m

2 stops

YXU5:04 p.m.London

C$ 560

United Airlines

16 Apr

YXU9:25 a.m.London

18h 14m

2 stops

SFO12:39 a.m.San Francisco

3 May

SFO9:08 p.m.San Francisco

17h 25m

2 stops

YXU5:33 p.m.London

C$ 567

United Airlines

17 Apr

YXU5:10 a.m.London

8h 45m

1 stop

SFO10:55 a.m.San Francisco

24 Apr

SFO10:50 p.m.San Francisco

19h 29m

2 stops

YXU9:19 p.m.London

C$ 609

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 14/4

5:10 a.m.-10:55 a.m.

1 stop8h 45m

San Francisco

Tue 5/5

8:05 a.m.-9:38 p.m.

2 stops10h 33m

C$ 472

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 14/4

5:10 a.m.-10:55 a.m.

1 stop8h 45m

San Francisco

Tue 5/5

8:05 a.m.-9:38 p.m.

2 stops10h 33m

C$ 480

LondonSan Francisco

YXU - SFO

YXUSFO

London

Wed 15/4

9:25 a.m.-9:22 p.m.

2 stops14h 57m

San Francisco

Tue 5/5

8:05 a.m.-9:38 p.m.

2 stops10h 33m

C$ 484

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 14/4

5:10 a.m.-10:55 a.m.

1 stop8h 45m

San Francisco

Tue 28/4

2:30 p.m.-8:44 a.m.

1 stop15h 14m

C$ 494

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 14/4

5:10 a.m.-12:30 p.m.

2 stops10h 20m

San Francisco

Tue 28/4

4:15 p.m.-8:44 a.m.

1 stop13h 29m

C$ 502

Quickest round-trip

LondonSan Francisco

YXU - SFO

YXUSFO

London

Fri 29/5

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

1 stop8h 50m

San Francisco

Sat 30/5

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

1 stop7h 45m

C$ 505

LondonSan Francisco

YXU - SFO

YXUSFO

London

Tue 14/4

8:00 a.m.-12:05 p.m.

1 stop31h 05m

San Francisco

Tue 5/5

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

1 stop7h 45m

C$ 516

LondonPalm Springs

YXU - PSP

YXUPSP

London

Fri 8/5

9:30 a.m.-9:23 p.m.

2 stops14h 53m

Palm Springs

Tue 12/5

4:13 p.m.-5:33 p.m.

3 stops22h 20m

C$ 643

LondonLos Angeles

YXU - LAX

YXULAX

London

Tue 5/5

9:30 a.m.-3:35 p.m.

1 stop9h 05m

Los Angeles Los Angeles

Mon 11/5

12:15 a.m.-9:38 p.m.

2 stops18h 23m

C$ 643

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 6/5

6:10 a.m.-2:10 p.m.

1 stop11h 00m

San Diego

Fri 8/5

3:30 p.m.-5:20 a.m.

1 stop10h 50m

C$ 724

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$ 317, 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$ 344.

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 March 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$ 218	Free Cancellation	Rating 7.2 3,300 reviews	Search WestJet flights
Air Canada	PriceFrom C$ 253	Free Cancellation	Rating 7.1 10,835 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 346	Free Cancellation	Rating 7.4 9,462 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.