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

WestJet, JetBlue, and British Airways are the most popular carriers operating from Ontario to United Kingdom

What airlines fly to United Kingdom?

British Airways, American Airlines and Virgin Atlantic are the top three most popular airlines that fly to United Kingdom from Ontario according to our data. British Airways is the first choice among our users, with 45% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 22 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 were last updated today.

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

As of January 2025, there are 7 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?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$217 Cheap Flights from Ontario to the United Kingdom in 2025

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Find the cheapest flights from Ontario to the United Kingdom

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Cheap round-trip flights

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

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to the United Kingdom.

Cheap last minute flights

Planning a quick getaway from Ontario to the United Kingdom? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to the United Kingdom, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Ontario to the United Kingdom

Find recent round-trip train or bus tickets from Ontario to the United Kingdom.

All round-trip flight deals from Ontario to the United Kingdom

The cheapest plane tickets from Ontario to the United Kingdom found on KAYAK recently.

7:05 am - 9:40 amONT-MAN

18h 35m2 stops

12:00 pm - 11:56 pmMAN-ONT

18h 56m2 stops

$617Virgin Atlantic

Find Deal

Tue, Mar 4 - Tue, Mar 11

6:00 am - 6:40 pmONT-MAN

28h 40m2 stops

12:00 pm - 10:43 pmMAN-ONT

17h 43m1 stop

$629Delta

Find Deal

Tue, Mar 4 - Tue, Mar 11

10:51 am - 12:05 pmONT-LHR

17h 14m1 stop

7:25 am - 10:16 pmLHR-ONT

22h 51m2 stops

$635Iberia

Find Deal

Wed, Feb 19 - Wed, Feb 26

2:44 pm - 12:05 pmONT-LHR

13h 21m1 stop

10:40 am - 10:45 pmLHR-ONT

20h 05m1 stop

$637Iberia

Find Deal

Sun, Feb 2 - Tue, Feb 11

2:54 pm - 4:45 pmONT-GLA

17h 51m2 stops

8:30 pm - 6:20 pmGLA-ONT

29h 50m2 stops

$646British Airways

Find Deal

Tue, Apr 1 - Thu, May 1

2:54 pm - 6:45 pmONT-NCL

19h 51m2 stops

6:40 am - 6:35 pmNCL-ONT

19h 55m2 stops

$649British Airways

Find Deal

Wed, Feb 19 - Wed, Feb 26

6:00 am - 2:50 pmONT-MAN

24h 50m3 stops

6:25 am - 8:10 pmMAN-ONT

20h 45m2 stops

$684United Airlines

Find Deal

Tue, Mar 4 - Tue, Mar 11

10:36 am - 12:00 pmONT-LHR

17h 24m1 stop

9:30 am - 8:10 pmLHR-ONT

17h 40m2 stops

$686United Airlines

Find Deal

Wed, Feb 26 - Tue, Mar 11

4:35 pm - 12:50 pmONT-LHR

12h 15m1 stop

11:15 am - 5:47 pmLHR-ONT

14h 32m1 stop

$813American Airlines

Find Deal

Tue, Apr 22 - Tue, May 20

7:00 am - 7:20 amONT-LHR

16h 20m1 stop

12:10 pm - 10:16 pmLHR-ONT

18h 06m1 stop

$949American Airlines

Find Deal

Wed, Feb 5 - Sat, Feb 15

8:01 am - 10:35 amONT-LGW

18h 34m1 stop

$217

Find Deal

Sun, Feb 2

8:01 am - 10:35 amONT-LGW

18h 34m1 stop

$247

Find Deal

Sun, Feb 9

7:00 am - 11:25 amONT-MAN

20h 25m2 stops

$404British Airways

Find Deal

Tue, Feb 4

1:21 pm - 10:00 amONT-LHR

12h 39m1 stop

$408Virgin Atlantic

Find Deal

Mon, Jan 27

7:05 am - 7:35 amONT-MAN

16h 30m1 stop

$412Delta

Find Deal

Tue, Feb 4

6:00 am - 10:00 amONT-LHR

20h 00m1 stop

$412Virgin Atlantic

Find Deal

Wed, Feb 26

4:35 pm - 9:40 pmONT-GLA

21h 05m2 stops

$415British Airways

Find Deal

Wed, Apr 30

10:59 pm - 8:35 amONT-MAN

25h 36m1 stop

$423Delta

Find Deal

Tue, Apr 22

6:00 am - 10:15 amONT-LHR

20h 15m2 stops

$423United Airlines

Find Deal

Wed, Feb 19

7:40 pm - 12:00 pmONT-LHR

32h 20m1 stop

$435United Airlines

Find Deal

Sat, Feb 22

1:00 pm - 10:35 amONT-LHR

13h 35m1 stop

10:45 am - 4:28 pmLHR-ONT

13h 43m1 stop

$661KLM

Find Deal

Sun, Jan 26 - Tue, Feb 11

1:00 pm - 10:35 amONT-LHR

13h 35m1 stop

10:45 am - 4:28 pmLHR-ONT

13h 43m1 stop

$668KLM

Find Deal

Sun, Jan 26 - Tue, Feb 11

3:04 pm - 9:10 amONT-MAN

34h 06m2 stops

6:15 am - 6:37 pmMAN-ONT

20h 22m2 stops

$1,035British Airways

Find Deal

Wed, Jan 22 - Tue, Feb 4

6:00 am - 6:30 amONT-LHR

16h 30m2 stops

11:10 am - 8:51 pmLHR-ONT

17h 41m2 stops

$1,081

Find Deal

Sat, Jan 25 - Sat, Feb 1

4:25 pm - 6:30 pmONT-MAN

18h 05m2 stops

7:55 am - 9:58 pmMAN-ONT

22h 03m2 stops

$1,104British Airways

Find Deal

Fri, Jan 24 - Sun, Jan 26

10:47 am - 9:40 amONT-LHR

14h 53m2 stops

1:45 pm - 8:29 pmLHR-ONT

14h 44m1 stop

$1,146United Airlines

Find Deal

Thu, Jan 23 - Mon, Jan 27

3:04 pm - 12:05 pmONT-LHR

13h 01m1 stop

9:40 pm - 9:00 pmLHR-ONT

31h 20m2 stops

$1,493

Find Deal

Wed, Jan 22 - Wed, Jan 29

3:04 pm - 6:50 pmONT-LGW

19h 46m2 stops

7:35 pm - 10:45 pmLGW-ONT

35h 10m2 stops

$1,667Iberia

Find Deal

Fri, Jan 24 - Sun, Jan 26

6:00 am - 7:30 amONT-LHR

17h 30m1 stop

1:45 pm - 8:29 pmLHR-ONT

14h 44m1 stop

$5,349United Airlines

Find Deal

Sat, Jan 25 - Mon, Feb 10

10:56 am - 8:15 amONT-LHR

13h 19m1 stop

1:50 pm - 10:45 pmLHR-ONT

16h 55m1 stop

$6,214Iberia

Find Deal

Sat, Jan 25 - Wed, Feb 5

Air Canada flights from Ontario to United Kingdom

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

Air Canada

Feb 26

ONT5:05 amOntario

18h 05m

2 stops

LHR7:10 amLondon Heathrow

Mar 11

LHR6:00 pmLondon Heathrow

33h 57m

2 stops

ONT8:57 pmOntario

$682

Find similar

Air Canada

Apr 9

ONT5:00 amOntario

17h 30m

2 stops

LHR6:30 amLondon Heathrow

Apr 18

LHR9:30 amLondon Heathrow

43h 12m

2 stops

ONT8:42 pmOntario

$724

Find similar

Air Canada

Mar 12

ONT5:05 amOntario

19h 05m

2 stops

LHR7:10 amLondon Heathrow

Mar 17

LHR1:00 pmLondon Heathrow

36h 04m

2 stops

ONT6:04 pmOntario

$726

Find similar

United Airlines flights from Ontario to United Kingdom

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

United Airlines

Mar 4

ONT6:00 amOntario

24h 50m

3 stops

MAN2:50 pmManchester

Mar 11

MAN6:25 amManchester

20h 45m

2 stops

ONT8:10 pmOntario

$684

Find similar

United Airlines

Feb 26

ONT10:36 amOntario

17h 24m

1 stop

LHR12:00 pmLondon Heathrow

Mar 11

LHR9:30 amLondon Heathrow

17h 40m

2 stops

ONT8:10 pmOntario

$686

Find similar

United Airlines

Mar 19

ONT10:38 amOntario

13h 47m

1 stop

LHR7:25 amLondon Heathrow

Mar 27

LHR11:35 amLondon Heathrow

16h 22m

1 stop

ONT8:57 pmOntario

$699

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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?

In general, September is the cheapest month to fly from Ontario to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $654. If you aren’t able to travel to United Kingdom during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $668.

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

The cheapest day to depart from Ontario to United Kingdom is on a Wednesday when prices can be found for as low as $668. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $1,112.

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

According to our data, the cheapest time of day to fly to United Kingdom is in the evening. momondo users have found flights departing from Ontario to United Kingdom in the evening for as low as $662. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the morning, with an average ticket price of $871. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 21 weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $811 when searching 21 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 $691 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	$217
Fastest flight time	12h 05m
Direct flights	None
Airports in United Kingdom	5 airports

The best one-way flight to United Kingdom from Ontario in the past 72 hours is $217. The best round-trip flight deal from Ontario to United Kingdom found on momondo in the last 72 hours is $617.

The fastest flight from Ontario to United Kingdom takes 12h 05m

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 - Glasgow Intl Airport.

There are 5 airports near United Kingdom: Newcastle upon Tyne (NCL), London Heathrow (LHR), Manchester (MAN), 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 were last updated today.
How many operators does momondo search for flights from Ontario Airport to United Kingdom?
As of January 2025, there are 7 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?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to United Kingdom

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

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom $455	Free Cancellation	Rating 7.5 665 reviews	Search Virgin Atlantic flights
KLM	PriceFrom $481	Free Cancellation	Rating 7.8 1,341 reviews	Search KLM flights
Delta	PriceFrom $481	Free Cancellation	Rating 8.0 8,521 reviews	Search Delta flights
Iberia	PriceFrom $582	Free Cancellation	Rating 7.0 2,646 reviews	Search Iberia flights
American Airlines	PriceFrom $609	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
British Airways	PriceFrom $611	Free Cancellation	Rating 6.6 6,834 reviews	Search British Airways flights
United Airlines	PriceFrom $619	Free Cancellation	Rating 7.4 8,985 reviews	Search United Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to United Kingdom for you.

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

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

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?

If you are not ready to book a flight from Ontario to United Kingdom now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to United Kingdom and let you know when they change.