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 47% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 25 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

Iberia, British Airways, and Lufthansa are the most popular carriers operating from United Kingdom to Ontario

How long does it take to fly to Ontario?

On average, it takes 11h 10m 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 Edinburgh and into Los Angeles, then the flight time is around 13h 40m.

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 6 operators available for flights from United Kingdom to Ontario Airport as of August 2025.

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.

£325 Cheap Flights from the United Kingdom to Ontario in 2025

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Find the cheapest flights from the United Kingdom to Los Angeles

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Last minute

Recent return flight deals from the United Kingdom to Los Angeles

20:55 - 23:42LHR-ONT

34h 47m2 stops

09:50 - 07:15ONT-LHR

37h 25m2 stops

£403Virgin Atlantic

Find Deal

Mon, 15 Sep - Mon, 22 Sep

19:15 - 22:40LHR-ONT

35h 25m2 stops

13:15 - 09:50ONT-LHR

12h 35m1 stop

£405Virgin Atlantic

Find Deal

Mon, 8 Sep - Tue, 16 Sep

08:20 - 18:54LHR-ONT

18h 34m1 stop

16:45 - 14:40ONT-LHR

13h 55m1 stop

£406British Airways

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Mon, 8 Sep - Tue, 16 Sep

09:15 - 21:24LHR-ONT

20h 09m1 stop

14:54 - 12:45ONT-LHR

13h 51m1 stop

£410British Airways

Find Deal

Sat, 20 Sep - Wed, 1 Oct

08:20 - 18:54LHR-ONT

18h 34m2 stops

13:10 - 12:50ONT-LHR

15h 40m1 stop

£413Finnair

Find Deal

Thu, 4 Sep - Tue, 9 Sep

08:20 - 18:54LHR-ONT

18h 34m2 stops

06:10 - 06:30ONT-LHR

16h 20m2 stops

£417Finnair

Find Deal

Thu, 4 Sep - Tue, 9 Sep

11:20 - 19:11LHR-ONT

15h 51m1 stop

13:15 - 09:50ONT-LHR

12h 35m1 stop

£429KLM

Find Deal

Fri, 5 Sep - Sat, 13 Sep

10:45 - 16:19LHR-ONT

13h 34m1 stop

13:00 - 10:35ONT-LHR

13h 35m1 stop

£442KLM

Find Deal

Thu, 15 Jan - Fri, 23 Jan

12:30 - 22:30EDI-ONT

18h 00m2 stops

07:00 - 08:05ONT-EDI

17h 05m2 stops

£572United Airlines

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Tue, 16 Sep - Tue, 23 Sep

09:10 - 20:33MAN-ONT

19h 23m2 stops

18:50 - 10:20ONT-MAN

31h 30m2 stops

£589United Airlines

Find Deal

Tue, 16 Sep - Tue, 23 Sep

Virgin Atlantic flights from United Kingdom to Ontario

Our best Virgin Atlantic deals on United Kingdom to Ontario flight tickets

Virgin Atlantic

15 Sept

LHR20:55London Heathrow

34h 47m

2 stops

ONT23:42Ontario

22 Sept

ONT09:50Ontario

37h 25m

2 stops

LHR07:15London Heathrow

£403

Find similar

Virgin Atlantic

8 Sept

LHR19:15London Heathrow

35h 25m

2 stops

ONT22:40Ontario

16 Sept

ONT13:15Ontario

12h 35m

1 stop

LHR09:50London Heathrow

£405

Find similar

Virgin Atlantic

8 Sept

LHR19:15London Heathrow

35h 25m

2 stops

ONT22:40Ontario

16 Sept

ONT13:15Ontario

15h 55m

2 stops

LHR13:10London Heathrow

£407

Find similar

British Airways flights from United Kingdom to Ontario

Our best British Airways deals on United Kingdom to Ontario flight tickets

British Airways

8 Sept

LHR08:20London Heathrow

18h 34m

1 stop

ONT18:54Ontario

16 Sept

ONT16:45Ontario

13h 55m

1 stop

LHR14:40London Heathrow

£406

Find similar

British Airways

20 Sept

LHR09:15London Heathrow

20h 09m

1 stop

ONT21:24Ontario

1 Oct

ONT14:54Ontario

13h 51m

1 stop

LHR12:45London Heathrow

£410

Find similar

British Airways

9 Oct

LHR15:10London Heathrow

15h 08m

1 stop

ONT22:18Ontario

19 Oct

ONT16:49Ontario

12h 01m

1 stop

LHR12:50London Heathrow

£425

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 15/9

20:55-23:42

2 stops34h 47m

Ontario

Mon 22/9

09:50-07:15

2 stops37h 25m

£403

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 8/9

19:15-22:40

2 stops35h 25m

Ontario

Tue 16/9

13:15-09:50

1 stop12h 35m

£405

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 8/9

08:20-18:54

1 stop18h 34m

Ontario

Tue 16/9

16:45-14:40

1 stop13h 55m

£406

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sat 20/9

09:15-21:24

1 stop20h 09m

Ontario

Wed 1/10

14:54-12:45

1 stop13h 51m

£410

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 4/9

08:20-18:54

2 stops18h 34m

Ontario

Tue 9/9

13:10-12:50

1 stop15h 40m

£413

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 4/9

08:20-18:54

2 stops18h 34m

Ontario

Tue 9/9

06:10-06:30

2 stops16h 20m

£417

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 5/9

11:20-19:11

1 stop15h 51m

Ontario

Sat 13/9

13:15-09:50

1 stop12h 35m

£429

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 15/1

10:45-16:19

1 stop13h 34m

Ontario

Fri 23/1

13:00-10:35

1 stop13h 35m

£442

EdinburghOntario

EDI - ONT

EDIONT

Edinburgh Turnhouse

Tue 16/9

12:30-22:30

2 stops18h 00m

Ontario

Tue 23/9

07:00-08:05

2 stops17h 05m

£572

ManchesterOntario

MAN - ONT

MANONT

Manchester

Tue 16/9

09:10-20:33

2 stops19h 23m

Ontario

Tue 23/9

18:50-10:20

2 stops31h 30m

£589

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 February is, on average, the cheapest month to fly to Ontario from United Kingdom, with most prices found around £411. If you’re not able to fly to Ontario in February, then January is your next best option. Flight prices from United Kingdom to Ontario during January average around £421.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as £495. This is often the case because there is less demand to fly during this day of the week. Flights from United Kingdom to Ontario on a Sunday will generally be more expensive and average around £572. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ontario?

Flying to Ontario from United Kingdom in the evening is the least expensive time of day to depart. momondo users have found prices as low as £484 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Ontario is at midday when prices are around £569.

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 £534 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 £444 on momondo.

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

Best price found	£325
Fastest flight time	13h 34m
Direct flights	None
Airports in Ontario	1 airport

The best one-way flight to Ontario from United Kingdom in the past 72 hours is £325. The best return flight deal from United Kingdom to Ontario found on momondo in the last 72 hours is £403.

The fastest flight from United Kingdom to Ontario takes 13h 34m

There are no direct flights from United Kingdom to Ontario. Popular non-direct routes for this connection are Edinburgh Turnhouse Airport - Ontario Airport, London Heathrow Airport - Ontario Airport and London Gatwick Airport - Ontario Airport.

There is 1 airport near Ontario: Ontario (ONT)

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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 6 operators available for flights from United Kingdom to Ontario Airport as of August 2025.
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
Finnair	PriceFrom £282	Free Cancellation	Rating 7.6 1,317 reviews	Search Finnair flights
British Airways	PriceFrom £383	Free Cancellation	Rating 6.6 7,230 reviews	Search British Airways flights
KLM	PriceFrom £399	Free Cancellation	Rating 7.8 1,383 reviews	Search KLM flights
United Airlines	PriceFrom £400	Free Cancellation	Rating 7.4 8,905 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom £420	Free Cancellation	Rating 7.4 655 reviews	Search Virgin Atlantic flights
Lufthansa	PriceFrom £436	Free Cancellation	Rating 6.8 7,280 reviews	Search Lufthansa 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.