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

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

How long does it take to fly to London, Ontario?

The average flight duration from California to London, Ontario depends on which airport you fly into and out of. Flying from Los Angeles to Toronto Pearson Intl Airport is 4h 40m on average, while flying from San Diego to Toronto Pearson Intl Airport is 4h 50m on average. Toronto Pearson Intl Airport is the most popular airport in London, Ontario.

Which airlines fly to London, Ontario?

Porter Airlines, Air Canada and WestJet are the top three most popular airlines that fly to London, Ontario from California according to our data. Porter Airlines is the first choice among our users, with 42% of people opting to fly with this airline when travelling to London, Ontario. Keep in mind that there are 7 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from California to London Airport are refreshed on a daily basis.

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

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 California to London Airport.

What documentation or ID do you need to fly to London Airport?

The required travel and health documents for your London Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

C$ 226 Cheap Flights from California to London in 2026

1 adult

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Find the cheapest flights from California to London

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 a.m. - 9:18 p.m.

SFO

YXU

9h 48m

1 stop

9:25 a.m. - 3:20 p.m.

YXU

SFO

8h 55m

1 stop

C$ 571Air Canada

Sat, 11 Apr - Wed, 15 Apr

8:30 a.m. - 9:18 p.m.

SFO

YXU

9h 48m

1 stop

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

YXU

SFO

10h 20m

2 stops

C$ 579Air Canada

Sat, 11 Apr - Wed, 15 Apr

7:25 a.m. - 9:18 p.m.

SFO

YXU

10h 53m

2 stops

5:10 a.m. - 3:32 p.m.

YXU

SFO

13h 22m

2 stops

C$ 586Air Canada

Sat, 11 Apr - Wed, 15 Apr

8:30 a.m. - 9:18 p.m.

SFO

YXU

9h 48m

1 stop

9:25 a.m. - 3:20 p.m.

YXU

SFO

8h 55m

1 stop

C$ 654Air Canada

Sat, 11 Apr - Wed, 15 Apr

3:30 p.m. - 2:45 p.m.

SAN

YXU

20h 15m

2 stops

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

YXU

SAN

23h 15m

1 stop

C$ 775WestJet

Mon, 22 Jun - Mon, 29 Jun

3:30 p.m. - 2:45 p.m.

SAN

YXU

20h 15m

2 stops

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

YXU

SAN

23h 15m

1 stop

C$ 776WestJet

Mon, 22 Jun - Mon, 29 Jun

1:14 p.m. - 5:20 a.m.

SJC

YXU

13h 06m

2 stops

6:10 a.m. - 11:31 p.m.

YXU

SJC

20h 21m

2 stops

C$ 950Multiple Airlines

Fri, 15 May - Sat, 30 May

5:15 p.m. - 5:32 p.m.

SAN

YXU

21h 17m

3 stops

9:30 a.m. - 6:25 p.m.

YXU

SAN

11h 55m

2 stops

C$ 954United Airlines

Mon, 22 Jun - Mon, 29 Jun

8:50 a.m. - 9:21 p.m.

SJC

YXU

9h 31m

2 stops

9:40 a.m. - 10:59 p.m.

YXU

SJC

16h 19m

2 stops

C$ 1,006United Airlines

Wed, 4 Mar - Wed, 18 Mar

8:45 a.m. - 9:18 p.m.

SJC

YXU

9h 33m

2 stops

9:25 a.m. - 9:07 p.m.

YXU

SJC

14h 42m

3 stops

C$ 1,040Multiple Airlines

Tue, 7 Apr - Tue, 14 Apr

WestJet flights from California to London, Ontario

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

WestJet

22 Jun

SAN3:30 p.m.San Diego

20h 15m

2 stops

YXU2:45 p.m.London

29 Jun

YXU5:55 p.m.London

23h 15m

1 stop

SAN2:10 p.m.San Diego

C$ 775

WestJet

22 Jun

SAN3:30 p.m.San Diego

20h 15m

2 stops

YXU2:45 p.m.London

29 Jun

YXU5:55 p.m.London

23h 15m

1 stop

SAN2:10 p.m.San Diego

C$ 776

WestJet

22 Jun

SAN3:30 p.m.San Diego

20h 15m

2 stops

YXU2:45 p.m.London

29 Jun

YXU6:10 a.m.London

11h 00m

1 stop

SAN2:10 p.m.San Diego

C$ 801

United Airlines flights from California to London, Ontario

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

United Airlines

14 Jul

SFO10:38 p.m.San Francisco

13h 22m

2 stops

YXU3:00 p.m.London

16 Jul

YXU3:30 p.m.London

12h 00m

2 stops

SFO12:30 a.m.San Francisco

C$ 954

United Airlines

4 Mar

SJC8:50 a.m.San Jose

9h 31m

2 stops

YXU9:21 p.m.London

18 Mar

YXU9:40 a.m.London

16h 19m

2 stops

SJC10:59 p.m.San Jose

C$ 1,006

United Airlines

5 Apr

SFO7:00 p.m.San Francisco

19h 03m

2 stops

YXU5:03 p.m.London

12 Apr

YXU9:25 a.m.London

18h 52m

2 stops

SFO1:17 a.m.San Francisco

C$ 1,139

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 11/4

8:30 a.m.-9:18 p.m.

1 stop9h 48m

London

Wed 15/4

9:25 a.m.-3:20 p.m.

1 stop8h 55m

C$ 571

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 11/4

8:30 a.m.-9:18 p.m.

1 stop9h 48m

London

Wed 15/4

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

2 stops10h 20m

C$ 579

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 11/4

7:25 a.m.-9:18 p.m.

2 stops10h 53m

London

Wed 15/4

5:10 a.m.-3:32 p.m.

2 stops13h 22m

C$ 586

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 11/4

8:30 a.m.-9:18 p.m.

1 stop9h 48m

London

Wed 15/4

9:25 a.m.-3:20 p.m.

1 stop8h 55m

C$ 654

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 22/6

3:30 p.m.-2:45 p.m.

2 stops20h 15m

London

Mon 29/6

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

1 stop23h 15m

C$ 775

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 22/6

3:30 p.m.-2:45 p.m.

2 stops20h 15m

London

Mon 29/6

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

1 stop23h 15m

C$ 776

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Fri 15/5

1:14 p.m.-5:20 a.m.

2 stops13h 06m

London

Sat 30/5

6:10 a.m.-11:31 p.m.

2 stops20h 21m

C$ 950

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 22/6

5:15 p.m.-5:32 p.m.

3 stops21h 17m

London

Mon 29/6

9:30 a.m.-6:25 p.m.

2 stops11h 55m

C$ 954

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Wed 4/3

8:50 a.m.-9:21 p.m.

2 stops9h 31m

London

Wed 18/3

9:40 a.m.-10:59 p.m.

2 stops16h 19m

C$ 1,006

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Tue 7/4

8:45 a.m.-9:18 p.m.

2 stops9h 33m

London

Tue 14/4

9:25 a.m.-9:07 p.m.

3 stops14h 42m

C$ 1,040

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 California to London, Ontario

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

Other information

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

You could potentially save up to 65% on your flight if you consider stops on a California to London, Ontario flight.

Cheap California to London, Ontario flight deals and tips

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

Fastest flight time	7h 00m
Direct flights	None

The fastest flight from California to London, Ontario takes 7h 00m

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

Search flight deals

When did momondo last update prices for flights from California to London Airport?
Prices for flights from California to London Airport are refreshed on a daily basis.
How old do you have to be to fly from California to London Airport?
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 California to London Airport.
What documentation or ID do you need to fly to London Airport?
The required travel and health documents for your London Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Grand Bend

Port Stanley

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to London. momondo saves you time and could save you money on your trip.

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

Flights from California to London 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 California to London?

Once all potential California to London 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 California to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from California are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.