What is the cheapest airline that flies from United Kingdom to Ontario?

Alaska Airlines, United Airlines, and JetBlue are the most popular carriers operating from United Kingdom to Ontario

What airlines fly to Ontario?

British Airways, Virgin Atlantic and American Airlines are the top three most popular airlines that fly to Ontario from United Kingdom according to our data. British Airways is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 13 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Ontario?

Average flight duration from United Kingdom to Ontario depends on which airport you fly into and out of. Flying from London to Los Angeles is 13h 05m on average, while flying from Edinburgh to Los Angeles is 14h 05m on average. Los Angeles is the most popular airport in Ontario.

When did momondo last update prices for flights from United Kingdom to Ontario Airport?

Prices for flights from United Kingdom to Ontario Airport refresh daily.

How old do you have to be to fly from United Kingdom to Ontario 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 United Kingdom to Ontario Airport.

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

The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$370 Cheap Flights from the United Kingdom to Ontario in 2026

Find the cheapest flights from the United Kingdom to Los Angeles

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Recent round-trip flight deals from the United Kingdom to Los Angeles

Enter your travel dates to find the best prices.

9:30 am - 8:20 pm

LHR

ONT

18h 50m

2 stops

6:00 am - 7:25 am

ONT

LHR

17h 25m

1 stop

$599United Airlines

Fri, Dec 11 - Thu, Dec 31

9:30 am - 8:20 pm

LHR

ONT

18h 50m

2 stops

1:18 pm - 7:25 am

ONT

LHR

34h 07m

1 stop

$601United Airlines

Fri, Dec 11 - Sun, Dec 27

9:00 am - 8:15 pm

LHR

ONT

19h 15m

2 stops

6:00 am - 7:40 am

ONT

LHR

17h 40m

1 stop

$602United Airlines

Wed, Nov 18 - Thu, Nov 19

9:00 am - 8:15 pm

LHR

ONT

19h 15m

2 stops

6:00 am - 7:40 am

ONT

LHR

17h 40m

1 stop

$604United Airlines

Wed, Nov 18 - Thu, Nov 19

9:00 am - 8:15 pm

LHR

ONT

19h 15m

2 stops

1:29 pm - 9:20 pm

ONT

LHR

23h 51m

2 stops

$604United Airlines

Wed, Nov 18 - Thu, Nov 19

8:40 am - 8:01 pm

LHR

ONT

19h 21m

2 stops

7:00 am - 8:30 am

ONT

LHR

17h 30m

1 stop

$604United Airlines

Fri, Aug 28 - Thu, Sep 10

8:40 am - 8:01 pm

LHR

ONT

19h 21m

2 stops

1:56 pm - 2:10 pm

ONT

LHR

16h 14m

1 stop

$605United Airlines

Wed, Sep 16 - Mon, Sep 21

8:45 am - 8:01 pm

LHR

ONT

19h 16m

2 stops

7:00 am - 6:55 am

ONT

LHR

15h 55m

2 stops

$606United Airlines

Sat, Aug 29 - Sat, Sep 5

8:40 am - 8:01 pm

LHR

ONT

19h 21m

2 stops

1:18 pm - 9:40 am

ONT

LHR

12h 22m

1 stop

$608United Airlines

Fri, Aug 28 - Fri, Sep 4

10:55 am - 4:35 pm

LHR

ONT

13h 40m

1 stop

1:04 pm - 10:00 am

ONT

LHR

12h 56m

1 stop

$623KLM

Thu, Sep 10 - Wed, Sep 23

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KLM flights from United Kingdom to Ontario

Our best KLM deals on United Kingdom to Ontario flight tickets

KLM

Sep 10

LHR10:55 amLondon Heathrow

13h 40m

1 stop

ONT4:35 pmOntario

Sep 23

ONT1:04 pmOntario

12h 56m

1 stop

LHR10:00 amLondon Heathrow

$623

KLM

Aug 15

LHR10:55 amLondon Heathrow

13h 29m

1 stop

ONT4:24 pmOntario

Aug 22

ONT1:06 pmOntario

12h 54m

1 stop

LHR10:00 amLondon Heathrow

$782

KLM

Aug 20

EDI9:00 amEdinburgh Turnhouse

17h 30m

1 stop

ONT6:30 pmOntario

Aug 27

ONT12:00 pmOntario

15h 50m

1 stop

EDI11:50 amEdinburgh Turnhouse

$1,034

Iberia flights from United Kingdom to Ontario

Our best Iberia deals on United Kingdom to Ontario flight tickets

Iberia

Aug 25

LGW11:30 amLondon Gatwick

19h 29m

2 stops

ONT10:59 pmOntario

Sep 15

ONT2:22 pmOntario

21h 38m

2 stops

LGW8:00 pmLondon Gatwick

$731

Iberia

Aug 28

LGW11:30 amLondon Gatwick

19h 29m

2 stops

ONT10:59 pmOntario

Sep 18

ONT2:22 pmOntario

21h 38m

2 stops

LGW8:00 pmLondon Gatwick

$742

Iberia

Aug 26

LGW11:30 amLondon Gatwick

19h 29m

2 stops

ONT10:59 pmOntario

Sep 16

ONT2:22 pmOntario

21h 38m

2 stops

LGW8:00 pmLondon Gatwick

$760

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 12/11

9:30 am-8:20 pm

2 stops18h 50m

Ontario

Thu 12/31

6:00 am-7:25 am

1 stop17h 25m

$599

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 12/11

9:30 am-8:20 pm

2 stops18h 50m

Ontario

Sun 12/27

1:18 pm-7:25 am

1 stop34h 07m

$601

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 11/18

9:00 am-8:15 pm

2 stops19h 15m

Ontario

Thu 11/19

6:00 am-7:40 am

1 stop17h 40m

$602

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 11/18

9:00 am-8:15 pm

2 stops19h 15m

Ontario

Thu 11/19

6:00 am-7:40 am

1 stop17h 40m

$604

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 11/18

9:00 am-8:15 pm

2 stops19h 15m

Ontario

Thu 11/19

1:29 pm-9:20 pm

2 stops23h 51m

$604

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 8/28

8:40 am-8:01 pm

2 stops19h 21m

Ontario

Thu 9/10

7:00 am-8:30 am

1 stop17h 30m

$604

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 9/16

8:40 am-8:01 pm

2 stops19h 21m

Ontario

Mon 9/21

1:56 pm-2:10 pm

1 stop16h 14m

$605

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sat 8/29

8:45 am-8:01 pm

2 stops19h 16m

Ontario

Sat 9/5

7:00 am-6:55 am

2 stops15h 55m

$606

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 8/28

8:40 am-8:01 pm

2 stops19h 21m

Ontario

Fri 9/4

1:18 pm-9:40 am

1 stop12h 22m

$608

Quickest round-trip

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 9/10

10:55 am-4:35 pm

1 stop13h 40m

Ontario

Wed 9/23

1:04 pm-10:00 am

1 stop12h 56m

$623

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How to get the cheapest flight ticket from United Kingdom to 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

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Other information

What is the cheapest month to fly to Ontario?

In general, February is the cheapest month to fly from United Kingdom to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $579. If you aren’t able to travel during the month of February, then book flights to Ontario from United Kingdom during September instead. Flights to Ontario in September, while not as cheap as those in February, still average around $583.

Can stopping save me money on United Kingdom to Ontario flights?

You could potentially save up to 5% on your flight if you consider stops on a United Kingdom to Ontario flight.

Cheap United Kingdom to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Ontario

Fastest flight time	13h 45m
Direct flights	None

The fastest flight from United Kingdom to Ontario takes 13h 45m

There are no direct flights from United Kingdom to Ontario. There are no popular flight routes from United Kingdom to Ontario.

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Frequently asked questions about flying from the United Kingdom to Ontario

When did momondo last update prices for flights from United Kingdom to Ontario Airport?
Prices for flights from United Kingdom to Ontario Airport refresh daily.
How old do you have to be to fly from United Kingdom to Ontario 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 United Kingdom to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to Ontario?

It is quick and easy to find United Kingdom to Ontario 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 Ontario that suits you.

Can I find flights from United Kingdom to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from United Kingdom which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from United Kingdom to Ontario?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from United Kingdom.

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

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

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Cheap flights from the United Kingdom to Los Angeles from $370

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Los Angeles departing on 1/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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KLM flights from United Kingdom to Ontario

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How to get the cheapest flight ticket from United Kingdom to Ontario

What is the cheapest month to fly to Ontario?

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What is the cheapest airline that flies from United Kingdom to Ontario?

What airlines fly to Ontario?

How long does it take to fly to Ontario?

Cheap United Kingdom to Ontario flight deals and tips

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Frequently asked questions about flying from the United Kingdom to Ontario

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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