Which airlines fly to United Kingdom?

Virgin Atlantic, British Airways and Iberia 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 13 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

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

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

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

As of May 2025, there are 2 operators available to choose from for flights from Ontario Airport to United Kingdom.

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.

£281 Cheap Flights from Ontario to the United Kingdom in 2025

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Find the cheapest flights from Ontario to the United Kingdom

Round-trip

One-way

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Cheap return flights

These are some of the best return flight deals from Ontario to the United Kingdom that have been recently found on momondo from popular airlines, departing in the coming months.

10:53 - 14:40ONT-GLA

19h 47m2 stops

20:50 - 16:06GLA-ONT

27h 16m2 stops

£458British Airways

Find Deal

Mon, 4 Aug - Mon, 18 Aug

13:15 - 09:40ONT-LHR

12h 25m1 stop

14:50 - 20:33LHR-ONT

13h 43m1 stop

£471Lufthansa

Find Deal

Tue, 23 Sep - Fri, 24 Oct

05:05 - 10:00ONT-LHR

20h 55m2 stops

09:30 - 12:32LHR-ONT

35h 02m2 stops

£490Air Canada

Find Deal

Sun, 17 Aug - Tue, 2 Sep

05:10 - 09:40ONT-LHR

20h 30m1 stop

17:40 - 22:30LHR-ONT

36h 50m2 stops

£495United Airlines

Find Deal

Tue, 14 Oct - Fri, 24 Oct

09:55 - 09:50ONT-LHR

15h 55m1 stop

12:30 - 22:41LHR-ONT

17h 11m1 stop

£507KLM

Find Deal

Wed, 15 Oct - Wed, 29 Oct

12:00 - 13:30ONT-LHR

17h 30m1 stop

06:15 - 22:43LHR-ONT

24h 28m2 stops

£508Delta

Find Deal

Wed, 13 Aug - Sat, 30 Aug

13:00 - 13:10ONT-LHR

16h 10m2 stops

11:45 - 22:41LHR-ONT

18h 56m2 stops

£518Delta

Find Deal

Wed, 10 Sep - Sat, 20 Sep

07:00 - 08:25ONT-EDI

17h 25m1 stop

09:00 - 17:29EDI-ONT

40h 29m2 stops

£523United Airlines

Find Deal

Wed, 30 Jul - Tue, 19 Aug

09:35 - 09:35ONT-LHR

16h 00m2 stops

13:00 - 13:10LHR-ONT

31h 10m2 stops

£528Air Canada

Find Deal

Thu, 16 Oct - Tue, 28 Oct

09:55 - 09:50ONT-LHR

15h 55m1 stop

09:20 - 22:41LHR-ONT

20h 21m1 stop

£545KLM

Find Deal

Fri, 17 Oct - Tue, 28 Oct

United Airlines flights from Ontario to United Kingdom

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

United Airlines

14 Oct

ONT05:10Ontario

20h 30m

1 stop

LHR09:40London Heathrow

24 Oct

LHR17:40London Heathrow

36h 50m

2 stops

ONT22:30Ontario

£495

Find similar

United Airlines

30 Jul

ONT07:00Ontario

17h 25m

1 stop

EDI08:25Edinburgh Turnhouse

19 Aug

EDI09:00Edinburgh Turnhouse

40h 29m

2 stops

ONT17:29Ontario

£523

Find similar

United Airlines

13 Aug

ONT06:10Ontario

16h 20m

2 stops

LHR06:30London Heathrow

30 Aug

LHR07:30London Heathrow

21h 03m

2 stops

ONT20:33Ontario

£536

Find similar

KLM flights from Ontario to United Kingdom

Our best KLM deals on Ontario to United Kingdom flight tickets

KLM

15 Oct

ONT09:55Ontario

15h 55m

1 stop

LHR09:50London Heathrow

29 Oct

LHR12:30London Heathrow

17h 11m

1 stop

ONT22:41Ontario

£507

Find similar

KLM

17 Oct

ONT09:55Ontario

15h 55m

1 stop

LHR09:50London Heathrow

28 Oct

LHR09:20London Heathrow

20h 21m

1 stop

ONT22:41Ontario

£545

Find similar

KLM

16 Oct

ONT14:00Ontario

16h 15m

1 stop

LHR14:15London Heathrow

29 Oct

LHR06:30London Heathrow

17h 47m

2 stops

ONT17:17Ontario

£549

Find similar

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 October. Flight prices, which tend to average around £500, 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 October, then departing from Ontario during the month January is also very affordable. Most momondo users find prices during this month for around £511.

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 £531. Try not to purchase tickets in the morning because they tend to be around £647. 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 16 weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £616 when searching 16 weeks out.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 £547 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

Best price found	£281
Fastest flight time	12h 00m
Direct flights	None
Airports in United Kingdom	8 airports

The best one-way flight to United Kingdom from Ontario in the past 72 hours is £281. The best return flight deal from Ontario to United Kingdom found on momondo in the last 72 hours is £458.

The fastest flight from Ontario to United Kingdom takes 12h 00m

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

There are 8 airports near United Kingdom: London City (LCY), Birmingham (BHX), London Heathrow (LHR), Leeds/Bradford (LBA), Manchester (MAN), Edinburgh Turnhouse (EDI), London Gatwick (LGW), Glasgow Intl (GLA)

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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 many operators does momondo search for flights from Ontario Airport to United Kingdom?
As of May 2025, there are 2 operators available to choose from for flights from Ontario Airport to United Kingdom.
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.