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 43% 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.

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 30m on average, while flying from San Diego to Toronto Pearson Intl Airport is 4h 55m on average. Toronto Pearson Intl Airport is the most popular airport in London, Ontario.

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

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

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$ 354 Cheap Flights from California to London in 2026

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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.

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

SFO

YXU

8h 15m

1 stop

5:55 p.m. - 4:40 p.m.

YXU

SFO

25h 45m

1 stop

C$ 577WestJet

Sat, 6 Jun - Mon, 29 Jun

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

SFO

YXU

8h 15m

1 stop

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

YXU

SFO

8h 50m

1 stop

C$ 604WestJet

Thu, 9 Jul - Tue, 14 Jul

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

SFO

YXU

8h 15m

1 stop

2:40 p.m. - 9:55 p.m.

YXU

SFO

10h 15m

2 stops

C$ 611WestJet

Thu, 9 Jul - Tue, 14 Jul

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

SFO

YXU

8h 15m

1 stop

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

YXU

SFO

8h 50m

1 stop

C$ 617WestJet

Wed, 3 Jun - Sat, 6 Jun

4:30 p.m. - 8:53 a.m.

SFO

YXU

13h 23m

1 stop

3:30 p.m. - 9:10 p.m.

YXU

SFO

8h 40m

1 stop

C$ 625Air Canada

Wed, 3 Jun - Sat, 6 Jun

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

SFO

YXU

10h 33m

2 stops

5:10 a.m. - 10:50 a.m.

YXU

SFO

8h 40m

1 stop

C$ 633Air Canada

Sat, 9 May - Wed, 13 May

7:40 p.m. - 9:38 p.m.

SAN

YXU

22h 58m

3 stops

5:10 a.m. - 12:18 p.m.

YXU

SAN

10h 08m

1 stop

C$ 755United Airlines

Wed, 6 May - Wed, 13 May

9:05 p.m. - 11:43 a.m.

SAN

YXU

11h 38m

2 stops

9:30 a.m. - 11:54 p.m.

YXU

SAN

17h 24m

2 stops

C$ 769United Airlines

Thu, 28 May - Sat, 30 May

7:06 a.m. - 5:20 a.m.

SJC

YXU

19h 14m

2 stops

5:55 p.m. - 9:45 a.m.

YXU

SJC

42h 50m

2 stops

C$ 968Multiple Airlines

Fri, 15 May - Sat, 30 May

8:15 p.m. - 5:20 a.m.

SJC

YXU

30h 05m

2 stops

5:55 p.m. - 9:45 a.m.

YXU

SJC

42h 50m

2 stops

C$ 982Multiple Airlines

Fri, 15 May - Sat, 30 May

United Airlines flights from California to London, Ontario

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

United Airlines

3 Jun

SFO6:54 p.m.San Francisco

17h 04m

2 stops

YXU2:58 p.m.London

6 Jun

YXU5:10 a.m.London

8h 40m

1 stop

SFO10:50 a.m.San Francisco

C$ 754

United Airlines

6 May

SAN7:40 p.m.San Diego

22h 58m

3 stops

YXU9:38 p.m.London

13 May

YXU5:10 a.m.London

10h 08m

1 stop

SAN12:18 p.m.San Diego

C$ 755

United Airlines

28 May

SAN9:05 p.m.San Diego

11h 38m

2 stops

YXU11:43 a.m.London

30 May

YXU9:30 a.m.London

17h 24m

2 stops

SAN11:54 p.m.San Diego

C$ 769

WestJet flights from California to London, Ontario

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

WestJet

6 Jun

SFO6:05 p.m.San Francisco

8h 15m

1 stop

YXU5:20 a.m.London

29 Jun

YXU5:55 p.m.London

25h 45m

1 stop

SFO4:40 p.m.San Francisco

C$ 577

WestJet

9 Jul

SFO6:05 p.m.San Francisco

8h 15m

1 stop

YXU5:20 a.m.London

14 Jul

YXU6:10 a.m.London

8h 50m

1 stop

SFO12:00 p.m.San Francisco

C$ 604

WestJet

9 Jul

SFO6:05 p.m.San Francisco

8h 15m

1 stop

YXU5:20 a.m.London

14 Jul

YXU2:40 p.m.London

10h 15m

2 stops

SFO9:55 p.m.San Francisco

C$ 611

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 6/6

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

1 stop8h 15m

London

Mon 29/6

5:55 p.m.-4:40 p.m.

1 stop25h 45m

C$ 577

Quickest round-trip

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 9/7

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

1 stop8h 15m

London

Tue 14/7

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

1 stop8h 50m

C$ 604

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 9/7

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

1 stop8h 15m

London

Tue 14/7

2:40 p.m.-9:55 p.m.

2 stops10h 15m

C$ 611

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Wed 3/6

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

1 stop8h 15m

London

Sat 6/6

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

1 stop8h 50m

C$ 617

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Wed 3/6

4:30 p.m.-8:53 a.m.

1 stop13h 23m

London

Sat 6/6

3:30 p.m.-9:10 p.m.

1 stop8h 40m

C$ 625

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sat 9/5

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

2 stops10h 33m

London

Wed 13/5

5:10 a.m.-10:50 a.m.

1 stop8h 40m

C$ 633

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Wed 6/5

7:40 p.m.-9:38 p.m.

3 stops22h 58m

London

Wed 13/5

5:10 a.m.-12:18 p.m.

1 stop10h 08m

C$ 755

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 28/5

9:05 p.m.-11:43 a.m.

2 stops11h 38m

London

Sat 30/5

9:30 a.m.-11:54 p.m.

2 stops17h 24m

C$ 769

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Fri 15/5

7:06 a.m.-5:20 a.m.

2 stops19h 14m

London

Sat 30/5

5:55 p.m.-9:45 a.m.

2 stops42h 50m

C$ 968

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Fri 15/5

8:15 p.m.-5:20 a.m.

2 stops30h 05m

London

Sat 30/5

5:55 p.m.-9:45 a.m.

2 stops42h 50m

C$ 982

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	10h 50m
Direct flights	None

The fastest flight from California to London, Ontario takes 10h 50m

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

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Frequently asked questions about flying from California to London, Ontario

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

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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.