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Cheap flights from Ontario to the United Kingdom from C$ 406

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LHR
15 Jan — 22 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to United Kingdom
Explore the most affordable flight options available from Ontario to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 December 2025.

Fri 26/126:00 a.m.YYZ - LHR
1 stop20h 20mAmerican Airlines
Thu 8/15:00 p.m.LHR - YYZ
1 stop22h 14mAmerican Airlines
Deal found 14/12C$ 819
Tue 30/127:44 p.m.YYZ - LHR
1 stop29h 36mBritish Airways
Sat 10/13:35 p.m.LHR - YYZ
1 stop28h 25mBritish Airways
Deal found 14/12C$ 823
Fri 26/124:40 p.m.YYZ - LHR
1 stop10h 35mAmerican Airlines
Sun 28/125:00 p.m.LHR - YYZ
1 stop21h 45mAmerican Airlines
Deal found 15/12C$ 871
Mon 29/127:15 p.m.YYZ - LHR
1 stop20h 20mAir Canada
Fri 16/19:00 a.m.LHR - YYZ
1 stop12h 25mAir Canada
Deal found 15/12C$ 903
Mon 29/125:00 p.m.YYZ - LHR
1 stop22h 35mMultiple Airlines
Fri 16/11:00 p.m.LHR - YYZ
Nonstop8h 00mMultiple Airlines
Deal found 15/12C$ 914
Tue 30/129:30 p.m.YUL - LHR
1 stop18h 05mAir Canada
Wed 14/16:50 a.m.LHR - YUL
1 stop9h 55mAir Canada
Deal found 15/12C$ 919
Fri 26/124:40 p.m.YYZ - LHR
1 stop10h 35mBritish Airways
Thu 8/15:00 p.m.LHR - YYZ
1 stop33h 51mBritish Airways
Deal found 15/12C$ 923
Fri 26/124:40 p.m.YYZ - LHR
1 stop10h 35mMultiple Airlines
Mon 19/12:45 p.m.LHR - YYZ
1 stop12h 57mMultiple Airlines
Deal found 14/12C$ 929
Tue 30/127:30 p.m.YUL - LHR
Nonstop6h 40mAir Canada
Mon 12/11:25 p.m.LHR - YUL
Nonstop7h 45mAir Canada
Deal found 15/12C$ 932
Tue 23/124:44 p.m.YYZ - LHR
1 stop11h 31mAmerican Airlines
Tue 17/25:05 p.m.LHR - YYZ
Nonstop8h 10mAmerican Airlines
Deal found 16/12C$ 933
Wed 31/124:06 p.m.YYZ - LHR
1 stop10h 44mMultiple Airlines
Thu 8/13:35 p.m.LHR - YYZ
1 stop11h 16mMultiple Airlines
Deal found 15/12C$ 934
Tue 30/128:30 a.m.YTZ - LHR
1 stop17h 40mAir Canada
Sun 18/112:00 p.m.LHR - YTZ
1 stop11h 13mAir Canada
Deal found 13/12C$ 936

Find flight deals from Ontario to United Kingdom

Keep the following information in mind while searching for Ontario to United Kingdom flight deals. Data was last updated 16 December 2025.

Round-trip from

C$ 769

One-way from

C$ 406

Popular in

December

Cheapest in

February

Average price

C$ 1,163

Good round-trip deal

C$ 787 or less

Good one-way deal

C$ 460 or less
Icelandair
  • Icelandair
  • 9/4-17/4
  • 2 total stops
  • 21h 15m total
  • Ontario to United Kingdom
Search Deals
23/1
  • 23/1
  • 2 total stops
  • 20h 25m total
  • Ontario to United Kingdom
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Ontario to United Kingdom.
Search Deals
Price to beat on a one-way flight from Ontario to United Kingdom.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 16 December 2025.
Use the filters below to find and compare flights from Ontario to the United Kingdom that are best for you.

Fly from

Ontario

Fly to

United Kingdom

Route

Depart

Return

Price

TorontoLondon

YYZ - STN

YYZSTN

Toronto Pearson Intl

Mon 13/4

10:00 p.m.-5:35 p.m.

1 stop14h 35m

London Stansted

Thu 23/4

6:30 a.m.-2:15 p.m.

1 stop12h 45m

C$ 780

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 16/1

11:00 p.m.-11:20 a.m.

Nonstop7h 20m

London Heathrow

Fri 23/1

1:00 p.m.-4:00 p.m.

Nonstop8h 00m

C$ 784

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 20/1

6:10 p.m.-6:30 a.m.

Nonstop7h 20m

London Heathrow

Wed 28/1

1:00 p.m.-4:00 p.m.

Nonstop8h 00m

C$ 784

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 1/2

11:00 p.m.-11:20 a.m.

Nonstop7h 20m

London Heathrow

Fri 6/2

1:00 p.m.-4:00 p.m.

Nonstop8h 00m

C$ 784

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 23/4

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

1 stop10h 10m

London Heathrow

Tue 28/4

1:05 p.m.-7:10 p.m.

1 stop11h 05m

C$ 800

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Sat 16/5

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

1 stop10h 00m

London Gatwick

Sat 13/6

3:40 p.m.-7:10 p.m.

1 stop32h 30m

C$ 816

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sun 5/4

7:20 p.m.-10:45 a.m.

1 stop10h 25m

London Gatwick

Sat 11/4

12:40 p.m.-12:35 a.m.

1 stop16h 55m

C$ 817

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 3/4

7:20 p.m.-10:45 a.m.

1 stop10h 25m

London Gatwick

Mon 13/4

12:40 p.m.-12:35 a.m.

1 stop16h 55m

C$ 817

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 3/4

7:20 p.m.-10:45 a.m.

1 stop10h 25m

London Gatwick

Wed 8/4

12:40 p.m.-12:35 a.m.

1 stop16h 55m

C$ 817

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

7:20 p.m.-10:45 a.m.

1 stop10h 25m

London Gatwick

Sat 11/4

12:40 p.m.-12:35 a.m.

1 stop16h 55m

C$ 817

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/12

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Best time to book a flight from Ontario to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to the United Kingdom

What is the cheapest month to book a flight from Region of Ontario to United Kingdom?

Currently, May is the cheapest month in which you can book a flight from Region of Ontario to United Kingdom (average of C$ 105). Flying from Region of Ontario to United Kingdom in November is currently the most expensive (average of C$ 670). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to GB?

Find hourly flight availability from Ontario to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 December 2025.

It’s optimal to fly from Region of Ontario to United Kingdom in the evening. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Region of Ontario to United Kingdom?

Use this chart to determine the cheapest time to fly round-trip from Ontario to United Kingdom. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Region of Ontario to United Kingdom flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Region of Ontario to United Kingdom

Explore weekly flight availability from Ontario to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 December 2025.

The most flights from CAON to GB0 are scheduled on a Monday (33 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).

Related info for your journey

Find useful and relevant information for your journey from Ontario to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Region of Ontario to United Kingdom?

    There are many flights that can get you from Region of Ontario to United Kingdom in 7h 20m. Fly via Lufthansa, Icelandair, or Air Transat to get the fastest option. The distance between Region of Ontario and United Kingdom is about 5702 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Region of Ontario to United Kingdom one-way?

    One-way options have recently been found by users for as low as C$ 61 on WestJet. Other airlines that offer cheap prices include Air Transat from C$ 307 and PLAY from C$ 308 one-way.

  • Can I find deals for flights from Ontario to United Kingdom that include hotel bookings?

    Yes. In addition to deals on Ontario to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to United Kingdom.

  • Can I find deals for business class flights from Ontario to United Kingdom?

    Yes. Cheapflights offers flight deals from Ontario to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Region of Ontario to United Kingdom?

    Currently, May is the cheapest month in which you can book a flight from Region of Ontario to United Kingdom (average of C$ 105). Flying from Region of Ontario to United Kingdom in November is currently the most expensive (average of C$ 670). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ontario to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Ontario to United Kingdom

Discover the top 10 airlines that operate flights from Ontario to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 16 December 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 218AverageC$ 786FlexibilityNo cancel feeOn-time60%
Search WestJet flights
LufthansaCheapestC$ 427AverageC$ 1,058FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
PLAYCheapestC$ 465AverageC$ 713FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
WestJet EncoreCheapestC$ 549AverageC$ 700FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
Air TransatCheapestC$ 576AverageC$ 988FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
TAP AIR PORTUGALCheapestC$ 599AverageC$ 810FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Porter AirlinesCheapestC$ 618AverageC$ 972FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 622AverageC$ 1,109FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
IcelandairCheapestC$ 638AverageC$ 876FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapestC$ 665AverageC$ 1,077FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to United Kingdom?

Deals for Ontario to United Kingdom flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ontario to United Kingdom?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to United Kingdom from Ontario.

Can Cheapflights find flights from Ontario to United Kingdom with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to United Kingdom, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario to United Kingdom become cheaper?

Yes, Cheapflights offers price alerts on Ontario to United Kingdom flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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