Which airlines fly to Ontario?

British Airways, Virgin Atlantic and Scandinavian 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 45% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 22 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?

On average, it takes 12h 35m to fly from United Kingdom to Ontario if you fly out of London (the most popular airport in United Kingdom) and into Los Angeles (the most popular airport in Ontario). If you’re flying out of Birmingham and into Los Angeles, then the flight time is around 13h 55m.

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

United Airlines, British Airways, and American Airlines are the most popular carriers operating from 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 are refreshed on a daily basis.

How many operators does momondo search for flights from United Kingdom to Ontario Airport?

There are 3 operators available for flights from United Kingdom to Ontario Airport as of June 2026.

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.

£349 Cheap Flights from the United Kingdom to Ontario in 2026

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Find the cheapest flights from the United Kingdom to Los Angeles

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Recent return flight deals from the United Kingdom to Los Angeles

Enter your travel dates to find the best prices.

14:50 - 20:52

LHR

ONT

14h 02m

1 stop

13:18 - 12:25

ONT

LHR

15h 07m

1 stop

£510United Airlines

vie., 9 oct. - vie., 16 oct.

12:00 - 21:11

LHR

ONT

17h 11m

1 stop

14:27 - 14:25

ONT

LHR

15h 58m

1 stop

£511British Airways

mié., 5 ago. - jue., 13 ago.

15:00 - 22:34

LHR

ONT

15h 34m

1 stop

13:11 - 11:05

ONT

LHR

13h 54m

1 stop

£515British Airways

mar., 21 jul. - lun., 27 jul.

16:25 - 09:34

LHR

ONT

25h 09m

1 stop

16:07 - 15:05

ONT

LHR

14h 58m

1 stop

£516British Airways

mié., 5 ago. - jue., 13 ago.

14:45 - 22:54

LHR

ONT

16h 09m

1 stop

06:00 - 12:20

ONT

LHR

22h 20m

1 stop

£530Alaska Airlines

lun., 2 nov. - jue., 12 nov.

11:40 - 22:41

LHR

ONT

19h 01m

1 stop

12:02 - 15:35

ONT

LHR

19h 33m

1 stop

£532Virgin Atlantic

mar., 16 jun. - mar., 30 jun.

09:20 - 22:43

LCY

ONT

21h 23m

2 stops

17:50 - 18:30

ONT

LCY

40h 40m

2 stops

£569Virgin Atlantic

mar., 6 oct. - vie., 16 oct.

09:20 - 22:41

LCY

ONT

21h 21m

2 stops

13:00 - 16:40

ONT

LCY

19h 40m

2 stops

£576Delta

mar., 16 jun. - mar., 30 jun.

08:25 - 21:48

LCY

ONT

21h 23m

2 stops

17:21 - 16:40

ONT

LCY

15h 19m

2 stops

£588Delta

lun., 15 jun. - lun., 29 jun.

09:25 - 12:33

EDI

ONT

35h 08m

2 stops

05:00 - 07:55

ONT

EDI

18h 55m

2 stops

£681United Airlines

mié., 25 nov. - mié., 9 dic.

United Airlines flights from United Kingdom to Ontario

Our best United Airlines deals on United Kingdom to Ontario flight tickets

United Airlines

9 Oct

LHR14:50London Heathrow

14h 02m

1 stop

ONT20:52Ontario

16 Oct

ONT13:18Ontario

15h 07m

1 stop

LHR12:25London Heathrow

£510

United Airlines

25 Nov

EDI09:25Edinburgh Turnhouse

35h 08m

2 stops

ONT12:33Ontario

9 Dec

ONT05:00Ontario

18h 55m

2 stops

EDI07:55Edinburgh Turnhouse

£681

United Airlines

26 Jun

MAN09:00Manchester

16h 54m

2 stops

ONT17:54Ontario

9 Jul

ONT13:50Ontario

19h 30m

2 stops

MAN17:20Manchester

£869

American Airlines flights from United Kingdom to Ontario

Our best American Airlines deals on United Kingdom to Ontario flight tickets

American Airlines

10 Aug

LHR11:00London Heathrow

15h 15m

1 stop

ONT18:15Ontario

17 Aug

ONT10:29Ontario

14h 31m

1 stop

LHR09:00London Heathrow

£536

American Airlines

20 Jul

LHR09:15London Heathrow

21h 19m

1 stop

ONT22:34Ontario

2 Aug

ONT22:10Ontario

30h 00m

1 stop

LHR12:10London Heathrow

£539

American Airlines

13 Jul

LHR12:15London Heathrow

18h 17m

2 stops

ONT22:32Ontario

28 Jul

ONT14:15Ontario

16h 10m

1 stop

LHR14:25London Heathrow

£551

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

LondonOntario

LHR - ONT

LHRONT

London Heathrow

vie. 9/10

14:50-20:52

1 stop14h 02m

Ontario

vie. 16/10

13:18-12:25

1 stop15h 07m

£510

LondonOntario

LHR - ONT

LHRONT

London Heathrow

mié. 5/8

12:00-21:11

1 stop17h 11m

Ontario

jue. 13/8

14:27-14:25

1 stop15h 58m

£511

LondonOntario

LHR - ONT

LHRONT

London Heathrow

mar. 21/7

15:00-22:34

1 stop15h 34m

Ontario

lun. 27/7

13:11-11:05

1 stop13h 54m

£515

LondonOntario

LHR - ONT

LHRONT

London Heathrow

mié. 5/8

16:25-09:34

1 stop25h 09m

Ontario

jue. 13/8

16:07-15:05

1 stop14h 58m

£516

LondonOntario

LHR - ONT

LHRONT

London Heathrow

lun. 2/11

14:45-22:54

1 stop16h 09m

Ontario

jue. 12/11

06:00-12:20

1 stop22h 20m

£530

LondonOntario

LHR - ONT

LHRONT

London Heathrow

mar. 16/6

11:40-22:41

1 stop19h 01m

Ontario

mar. 30/6

12:02-15:35

1 stop19h 33m

£532

LondonOntario

LCY - ONT

LCYONT

London City

mar. 6/10

09:20-22:43

2 stops21h 23m

Ontario

vie. 16/10

17:50-18:30

2 stops40h 40m

£569

LondonOntario

LCY - ONT

LCYONT

London City

mar. 16/6

09:20-22:41

2 stops21h 21m

Ontario

mar. 30/6

13:00-16:40

2 stops19h 40m

£576

LondonOntario

LCY - ONT

LCYONT

London City

lun. 15/6

08:25-21:48

2 stops21h 23m

Ontario

lun. 29/6

17:21-16:40

2 stops15h 19m

£588

EdinburghOntario

EDI - ONT

EDIONT

Edinburgh Turnhouse

mié. 25/11

09:25-12:33

2 stops35h 08m

Ontario

mié. 9/12

05:00-07:55

2 stops18h 55m

£681

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Ontario?

The month of March is, on average, the cheapest month to fly to Ontario from United Kingdom, with most prices found around £296. If you’re not able to fly to Ontario in March, then February is your next best option. Flight prices from United Kingdom to Ontario during February average around £311.

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around £487 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from United Kingdom for as low as £369 on momondo.

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

You could potentially save up to 20% 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 22m
Direct flights	None

The fastest flight from United Kingdom to Ontario takes 13h 22m

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 are refreshed on a daily basis.
How many operators does momondo search for flights from United Kingdom to Ontario Airport?
There are 3 operators available for flights from United Kingdom to Ontario Airport as of June 2026.
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.

Best airlines flying from United Kingdom to Ontario

Compare and see reviews for airlines that fly from United Kingdom to Ontario with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom £369	Free Cancellation	Rating 7.4 9,778 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom £373	Free Cancellation	Rating 7.5 689 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom £399	Free Cancellation	Rating 6.7 8,019 reviews	Search British Airways flights

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?

Flights from United Kingdom to Ontario 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 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?

Yes. momondo can track prices for United Kingdom to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.