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

British Airways, United Airlines, and Delta are the most popular carriers operating from Ontario to United Kingdom

Which airlines fly to United Kingdom?

Virgin Atlantic, British Airways and Aer Lingus are the top three most popular airlines that fly to United Kingdom from Ontario according to our data. Virgin Atlantic is the first choice among our users, with 43% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 12 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Ontario Airport to United Kingdom are updated daily.

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

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 Ontario Airport to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The necessary travel and health documents for your United Kingdom 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.

£157 Cheap Flights from Ontario to the United Kingdom in 2025/26

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Find the cheapest flights from Ontario to the United Kingdom

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:30 - 10:30

ONT

LHR

19h 00m1 stop

06:30 - 22:51

LHR

ONT

24h 21m2 stops

£452Virgin Atlantic

Thu, 8 Jan - Wed, 21 Jan

16:45 - 17:00

ONT

EDI

16h 15m2 stops

09:25 - 22:13

EDI

ONT

20h 48m2 stops

£455British Airways

Fri, 16 Jan - Thu, 22 Jan

16:45 - 19:25

ONT

NCL

18h 40m2 stops

06:40 - 22:13

NCL

ONT

23h 33m2 stops

£456British Airways

Sun, 25 Jan - Sun, 1 Feb

17:07 - 20:10

ONT

LHR

19h 03m2 stops

06:30 - 22:51

LHR

ONT

24h 21m2 stops

£462Delta

Thu, 8 Jan - Wed, 21 Jan

12:45 - 16:20

ONT

MAN

19h 35m2 stops

05:40 - 18:45

MAN

ONT

21h 05m2 stops

£464American Airlines

Wed, 31 Dec - Thu, 15 Jan

07:10 - 11:40

ONT

LHR

20h 30m1 stop

06:05 - 22:49

LHR

ONT

24h 44m2 stops

£468Iberia

Fri, 13 Feb - Sat, 21 Feb

06:00 - 16:35

ONT

MAN

26h 35m2 stops

13:30 - 11:31

MAN

ONT

30h 01m1 stop

£469Delta

Wed, 31 Dec - Thu, 15 Jan

06:00 - 10:10

ONT

LHR

20h 10m2 stops

06:30 - 21:58

LHR

ONT

23h 28m2 stops

£471Multiple Airlines

Thu, 15 Jan - Fri, 30 Jan

10:58 - 15:35

ONT

MAN

20h 37m2 stops

07:55 - 22:48

MAN

ONT

22h 53m2 stops

£471Multiple Airlines

Sun, 1 Feb - Sun, 8 Feb

06:10 - 08:50

ONT

LCY

18h 40m2 stops

07:50 - 23:59

LCY

ONT

23h 09m2 stops

£584Iberia

Thu, 5 Mar - Wed, 18 Mar

Iberia flights from Ontario to United Kingdom

Our best Iberia deals on Ontario to United Kingdom flight tickets

Iberia

13 Feb

ONT07:10Ontario

20h 30m

1 stop

LHR11:40London Heathrow

21 Feb

LHR06:05London Heathrow

24h 44m

2 stops

ONT22:49Ontario

£468

Find similar

Iberia

17 Jan

ONT10:58Ontario

16h 42m

1 stop

LHR11:40London Heathrow

2 Feb

LHR16:30London Heathrow

25h 38m

1 stop

ONT10:08Ontario

£497

Find similar

Iberia

20 Jan

ONT10:58Ontario

15h 02m

1 stop

LHR10:00London Heathrow

29 Jan

LHR06:15London Heathrow

24h 33m

2 stops

ONT22:48Ontario

£506

Find similar

Air Canada flights from Ontario to United Kingdom

Our best Air Canada deals on Ontario to United Kingdom flight tickets

Air Canada

4 Mar

ONT05:00Ontario

18h 10m

2 stops

LHR07:10London Heathrow

9 Mar

LHR14:30London Heathrow

28h 48m

2 stops

ONT12:18Ontario

£475

Find similar

Air Canada

13 Feb

ONT05:00Ontario

19h 30m

2 stops

LHR08:30London Heathrow

21 Feb

LHR18:00London Heathrow

36h 57m

2 stops

ONT22:57Ontario

£482

Find similar

Air Canada

6 Jan

ONT18:32Ontario

27h 58m

2 stops

LHR06:30London Heathrow

22 Jan

LHR18:00London Heathrow

31h 43m

2 stops

ONT17:43Ontario

£508

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Thu 8/1

07:30-10:30

1 stop19h 00m

London Heathrow

Wed 21/1

06:30-22:51

2 stops24h 21m

£452

OntarioEdinburgh

ONT - EDI

ONTEDI

Ontario

Fri 16/1

16:45-17:00

2 stops16h 15m

Edinburgh Turnhouse

Thu 22/1

09:25-22:13

2 stops20h 48m

£455

OntarioNewcastle upon Tyne

ONT - NCL

ONTNCL

Ontario

Sun 25/1

16:45-19:25

2 stops18h 40m

Newcastle upon Tyne

Sun 1/2

06:40-22:13

2 stops23h 33m

£456

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Thu 8/1

17:07-20:10

2 stops19h 03m

London Heathrow

Wed 21/1

06:30-22:51

2 stops24h 21m

£462

OntarioManchester

ONT - MAN

ONTMAN

Ontario

Wed 31/12

12:45-16:20

2 stops19h 35m

Manchester

Thu 15/1

05:40-18:45

2 stops21h 05m

£464

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Fri 13/2

07:10-11:40

1 stop20h 30m

London Heathrow

Sat 21/2

06:05-22:49

2 stops24h 44m

£468

OntarioManchester

ONT - MAN

ONTMAN

Ontario

Wed 31/12

06:00-16:35

2 stops26h 35m

Manchester

Thu 15/1

13:30-11:31

1 stop30h 01m

£469

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Thu 15/1

06:00-10:10

2 stops20h 10m

London Heathrow

Fri 30/1

06:30-21:58

2 stops23h 28m

£470

OntarioManchester

ONT - MAN

ONTMAN

Ontario

Sun 1/2

10:58-15:35

2 stops20h 37m

Manchester

Sun 8/2

07:55-22:48

2 stops22h 53m

£471

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 5/3

06:10-08:50

2 stops18h 40m

London City

Wed 18/3

07:50-23:59

2 stops23h 09m

£584

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 Ontario to United Kingdom

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

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from Ontario is in February. Flight prices, which tend to average around £491, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of February, then departing from Ontario during the month October is also very affordable. Most momondo users find prices during this month for around £507.

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

The cheapest time of day to fly to United Kingdom is at midday when flights can be purchased for as low as £530. Try not to purchase tickets in the morning because they tend to be around £646. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £618 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Ontario for as low as £453 on momondo.

Cheap Ontario to United Kingdom flight deals and tips

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

Fastest flight time	12h 06m
Direct flights	None

The fastest flight from Ontario to United Kingdom takes 12h 06m

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

Search flight deals

When did momondo last update prices for flights from Ontario Airport to United Kingdom?
Prices for flights from Ontario Airport to United Kingdom are updated daily.
How old do you have to be to fly from Ontario Airport to United Kingdom?
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 Ontario Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The necessary travel and health documents for your United Kingdom 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 Ontario to United Kingdom?

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

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

Yes. momondo allows you to filter the results for Ontario to United Kingdom flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to United Kingdom from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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