Which airlines fly to London?

Air Canada, British Airways and Air Transat are the top three most popular airlines that fly to London from Region of Ontario according to our data. Air Canada is the first choice among our users, with 53% of people opting to fly with this airline when travelling to London. Keep in mind that there are 18 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to London?

On average, it takes 6h 25m to fly from Region of Ontario to London if you fly out of Ottawa (the most popular airport in Region of Ontario) and into London Heathrow Airport (the most popular airport in London). If you’re flying out of Toronto and into London Heathrow Airport, then the flight time is around 7h 50m.

How many flights depart from Region of Ontario to London on average per day?

36 flights are operational daily from Region of Ontario to London as of January 2026. The most popular departure time for this route is 6:00p.m., with 100% of flights per day taking off in the evening.

What is the cheapest airline that flies from Ontario to London?

TAP AIR PORTUGAL, Icelandair, and WestJet are the most popular carriers operating from Ontario to London

How many flights depart from Region of Ontario to London on average per week?

The number of flights available between Region of Ontario and London is 257 per week as of January 2026. The most frequent departure day is Tue, with 19% of weekly flights leaving on this day.

When did momondo last update prices for flights from Ontario to London?

Prices for flights from Ontario to London are updated daily.

How many operators does momondo search for flights from Ontario to London?

There are 18 operators available for flights from Ontario to London as of January 2026.

How old do you have to be to fly from Ontario to London?

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 to London.

What documentation or ID do you need to fly to London?

The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 346 Cheap Flights from Ontario to London in 2026

1 adult

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Find the cheapest flights from Ontario to London

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:45 a.m. - 9:45 a.m.

YUL

LGW

22h 00m

1 stop

11:40 a.m. - 9:00 p.m.

LGW

YUL

14h 20m

1 stop

C$ 722Air Transat

Sat, 14 Feb - Fri, 27 Feb

8:45 p.m. - 11:55 a.m.

YYZ

LHR

10h 10m

1 stop

9:25 p.m. - 10:10 p.m.

LHR

YYZ

29h 45m

1 stop

C$ 725Icelandair

Thu, 2 Apr - Fri, 10 Apr

5:25 p.m. - 9:45 a.m.

YUL

LGW

11h 20m

1 stop

11:40 a.m. - 8:55 p.m.

LGW

YUL

14h 15m

1 stop

C$ 726Air Transat

Mon, 2 Feb - Mon, 9 Feb

10:55 p.m. - 10:55 p.m.

YYZ

LHR

19h 00m

1 stop

6:00 a.m. - 2:00 p.m.

LHR

YYZ

13h 00m

1 stop

C$ 727TAP AIR PORTUGAL

Mon, 11 May - Wed, 20 May

7:35 p.m. - 9:45 a.m.

YYZ

LTN

9h 10m

1 stop

8:00 p.m. - 11:15 a.m.

LTN

YYZ

19h 15m

1 stop

C$ 727Multiple Airlines

Tue, 3 Mar - Thu, 12 Mar

10:00 p.m. - 7:25 p.m.

YYZ

STN

16h 25m

1 stop

6:30 a.m. - 1:20 p.m.

STN

YYZ

11h 50m

1 stop

C$ 727Multiple Airlines

Mon, 13 Apr - Sun, 26 Apr

10:45 p.m. - 10:00 p.m.

YUL

LHR

18h 15m

1 stop

4:35 p.m. - 9:10 p.m.

LHR

YUL

33h 35m

1 stop

C$ 729TAP AIR PORTUGAL

Sun, 12 Apr - Thu, 23 Apr

9:30 p.m. - 9:20 a.m.

YUL

LHR

30h 50m

1 stop

9:00 a.m. - 12:15 p.m.

LHR

YUL

32h 15m

1 stop

C$ 758Lufthansa

Thu, 12 Feb - Thu, 19 Feb

8:55 p.m. - 6:30 a.m.

YTZ

LHR

28h 35m

1 stop

12:40 p.m. - 7:15 a.m.

LHR

YTZ

23h 35m

2 stops

C$ 772Air Canada

Wed, 1 Apr - Sat, 11 Apr

4:50 p.m. - 9:20 a.m.

YUL

LHR

11h 30m

1 stop

9:00 a.m. - 6:35 a.m.

LHR

YUL

26h 35m

1 stop

C$ 784Air Canada

Sun, 8 Feb - Fri, 13 Feb

British Airways flights from Region of Ontario to London

Our best British Airways deals on Region of Ontario to London flight tickets

British Airways

22 Jan

YYZ10:05 p.m.Toronto Pearson Intl

7h 05m

LHR10:10 a.m.London Heathrow

2 Feb

LHR11:40 a.m.London Heathrow

8h 10m

YYZ2:50 p.m.Toronto Pearson Intl

C$ 754

British Airways

21 Jan

YYZ10:05 p.m.Toronto Pearson Intl

7h 05m

LHR10:10 a.m.London Heathrow

28 Jan

LHR11:40 a.m.London Heathrow

8h 10m

YYZ2:50 p.m.Toronto Pearson Intl

C$ 755

British Airways

21 Jan

YYZ10:05 p.m.Toronto Pearson Intl

7h 05m

LHR10:10 a.m.London Heathrow

28 Jan

LHR11:40 a.m.London Heathrow

8h 10m

YYZ2:50 p.m.Toronto Pearson Intl

C$ 766

TAP AIR PORTUGAL flights from Region of Ontario to London

Our best TAP AIR PORTUGAL deals on Region of Ontario to London flight tickets

TAP AIR PORTUGAL

25 Mar

YUL10:45 p.m.Montreal Pierre Elliott Trudeau Intl

12h 45m

1 stop

LHR3:30 p.m.London Heathrow

8 Apr

LHR1:45 p.m.London Heathrow

12h 00m

1 stop

YUL8:45 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 727

TAP AIR PORTUGAL

12 Apr

YUL10:45 p.m.Montreal Pierre Elliott Trudeau Intl

18h 15m

1 stop

LHR10:00 p.m.London Heathrow

23 Apr

LHR4:35 p.m.London Heathrow

33h 35m

1 stop

YUL9:10 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 729

TAP AIR PORTUGAL

13 Apr

YUL10:45 p.m.Montreal Pierre Elliott Trudeau Intl

18h 15m

1 stop

LHR10:00 p.m.London Heathrow

23 Apr

LHR7:50 p.m.London Heathrow

30h 20m

1 stop

YUL9:10 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 736

Fly from

Fly to

Route

Depart

Return

Price

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 14/2

6:45 a.m.-9:45 a.m.

1 stop22h 00m

London Gatwick

Fri 27/2

11:40 a.m.-9:00 p.m.

1 stop14h 20m

C$ 722

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 2/4

8:45 p.m.-11:55 a.m.

1 stop10h 10m

London Heathrow

Fri 10/4

9:25 p.m.-10:10 p.m.

1 stop29h 45m

C$ 725

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

5:25 p.m.-9:45 a.m.

1 stop11h 20m

London Gatwick

Mon 9/2

11:40 a.m.-8:55 p.m.

1 stop14h 15m

C$ 726

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 11/5

10:55 p.m.-10:55 p.m.

1 stop19h 00m

London Heathrow

Wed 20/5

6:00 a.m.-2:00 p.m.

1 stop13h 00m

C$ 727

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

Tue 3/3

7:35 p.m.-9:45 a.m.

1 stop9h 10m

London Luton

Thu 12/3

8:00 p.m.-11:15 a.m.

1 stop19h 15m

C$ 727

TorontoLondon

YYZ - STN

YYZSTN

Toronto Pearson Intl

Mon 13/4

10:00 p.m.-7:25 p.m.

1 stop16h 25m

London Stansted

Sun 26/4

6:30 a.m.-1:20 p.m.

1 stop11h 50m

C$ 727

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 12/4

10:45 p.m.-10:00 p.m.

1 stop18h 15m

London Heathrow

Thu 23/4

4:35 p.m.-9:10 p.m.

1 stop33h 35m

C$ 729

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 12/2

9:30 p.m.-9:20 a.m.

1 stop30h 50m

London Heathrow

Thu 19/2

9:00 a.m.-12:15 p.m.

1 stop32h 15m

C$ 758

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Wed 1/4

8:55 p.m.-6:30 a.m.

1 stop28h 35m

London Heathrow

Sat 11/4

12:40 p.m.-7:15 a.m.

2 stops23h 35m

C$ 772

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 8/2

4:50 p.m.-9:20 a.m.

1 stop11h 30m

London Heathrow

Fri 13/2

9:00 a.m.-6:35 a.m.

1 stop26h 35m

C$ 784

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Region of Ontario to London

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 London?

In general, February is the cheapest month to fly from Region of Ontario to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 713. If you aren’t able to travel to London during the month of February, then flying in May is also cheap. Prices for this month can be found on momondo for an average of C$ 752.

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

According to our data, Sunday is the cheapest day to fly to London from Region of Ontario. The lowest ticket price found for a Sunday departure recently was C$ 1,123. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to London for around C$ 1,241.

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

Our most recent data shows that the best time of day to fly to London is in the evening. Flights from Region of Ontario to London during this time can be as low as C$ 1,113. In the afternoon is when there is more demand to fly to London, so prices are often more expensive at around C$ 1,322 per ticket.

What is the cheapest Ontario to London flight route?

Fly from Toronto Pearson Intl to London Gatwick for the best Ontario - London flight prices

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

You are more likely to see cheaper flights to London from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around C$ 928 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Region of Ontario for as low as C$ 834 on momondo.

What cabin class options are available on Ontario to London flights?

There are 4 cabin classes available to choose from on Ontario to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Region of Ontario to London flights?

You could potentially save up to 20% on your flight if you consider stops on a Region of Ontario to London flight.

Cheap Region of Ontario to London flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to London

Best price found	C$ 507
Fastest flight time	6h 25m
Direct flights	Every day
Airports in London	6 airports

The best one-way flight to London from Region of Ontario in the past 72 hours is C$ 507. The best round-trip flight deal from Region of Ontario to London found on momondo in the last 72 hours is C$ 290.

The fastest flight from Region of Ontario to London takes 6h 25m

Direct flights go from Region of Ontario to London every day.

There are 6 airports in London. From Region of Ontario there are direct flights to London Heathrow (LHR), London Gatwick (LGW).

Search flight deals

When did momondo last update prices for flights from Ontario to London?
Prices for flights from Ontario to London are updated daily.
How many operators does momondo search for flights from Ontario to London?
There are 18 operators available for flights from Ontario to London as of January 2026.
How old do you have to be to fly from Ontario to London?
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 to London.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Region of Ontario to London?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Region of Ontario to London is Airbus A321neo (18.42% of total bookings). The next most popular plane models are Airbus A330-200 (16.67%), Boeing 777-300ER (13.17%), and Boeing 777 (10.55%).

Best airlines flying from Region of Ontario to London

Compare and see reviews for airlines that fly from Region of Ontario to London with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom C$ 220	Free Cancellation	Rating 7.2 3,240 reviews	Search WestJet flights
Lufthansa	PriceFrom C$ 430	Free Cancellation	Rating 6.8 7,711 reviews	Search Lufthansa flights
WestJet Encore	PriceFrom C$ 554	Free Cancellation	Rating 0.0	Search WestJet Encore flights
Air Transat	PriceFrom C$ 581	Free Cancellation	Rating 7.7 495 reviews	Search Air Transat flights
TAP AIR PORTUGAL	PriceFrom C$ 603	Free Cancellation	Rating 7.1 2,119 reviews	Search TAP AIR PORTUGAL flights
Porter Airlines	PriceFrom C$ 605	Free Cancellation	Rating 8.0 407 reviews	Search Porter Airlines flights
Icelandair	PriceFrom C$ 639	Free Cancellation	Rating 7.1 596 reviews	Search Icelandair flights
Air Canada	PriceFrom C$ 709	Free Cancellation	Rating 7.1 10,619 reviews	Search Air Canada flights
American Airlines	PriceFrom C$ 714	Free Cancellation	Rating 7.2 11,120 reviews	Search American Airlines flights
Aer Lingus	PriceFrom C$ 717	Free Cancellation	Rating 7.2 1,435 reviews	Search Aer Lingus flights

Hounslow

Gatwick

Ilford

Chelmsford

Wokingham

Slough

Feltham

Hayes

Richmond

Uxbridge

Wembley

Waterlooville

Newport

Basingstoke

Milton Keynes

Dover

Worthing

Ipswich

Guildford

Maidstone

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to London. momondo saves you time and could save you money on your trip.

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

Yes. All flights to London from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to London?

Once all potential Ontario to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Ontario to London 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.