£117 Find Cheap Flights from Ontario to the United Kingdom

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to the United Kingdom

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

Good to know - Cheap tickets from Ontario to the United Kingdom

Low seasonFebruary
High seasonJuly
Cheapest flight£117
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (11% more expensive on average)
Flight from Toronto to Edinburgh

Flights from Ontario to the United Kingdom: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Ontario to the United Kingdom 
CFlew with Air CanadaYYZ-LHRFeb 2025
Flying from Toronto to London is a long-haul journey, but with the right preparation, it can be a smooth and enjoyable experience. Here are some tips to make your trip more comfortable: Choose the Right Flight – If possible, book an overnight flight (a "red-eye"). This allows you to sleep on the plane and arrive in London in the morning, helping with jet lag. Pack Smart – London’s weather can be unpredictable, so bring layers and a compact umbrella. Also, keep essentials like a travel adapter and charger in your carry-on. Use Luggage Tracking – If flying Air Canada, take advantage of their luggage tracking feature for peace of mind, knowing your bags are on the same flight as you. Stay Hydrated & Bring Snacks – Airplane cabins can be dry, so drink plenty of water. While airlines provide meals, it’s always a good idea to have extra snacks. Manage Jet Lag – Adjust your sleep schedule before departure and try to stay awake until nighttime in London to quickly adapt to the new time zone. Transportation on Arrival – Heathrow and Gatwick have great transport links. The Heathrow Express is the fastest way into central London, while the Tube (Piccadilly Line) is more budget-friendly. Have Your Documents Ready – Ensure your passport is valid, and if required, have your visa or travel authorization (e.g., an ETA for UK entry). With the right prep, your journey will be smooth and enjoyable.
Mohamed ImranFlew with Air TransatYYZ-LGWSept 2024
Pack food for yourself before boarding Air Transat. Blankets, pillows and headphones are not given for free.
GerhardFlew with British AirwaysYYZ-LHRJun 2024
the lounge is nice. Although the crew at check in will say there are no showers, there are! Check the board for delays
CatherineFlew with LufthansaYYZ-LHRMay 2024
Pack light to avoid checked bag fees and then volunteer to place the carry on bag in the hold for no extra cost.
Verified travelerFlew with Air CanadaYYZ-LHRMay 2024
Keep in mind the security gate post security as you cannot return back if you happened to miss collecting all your items
Verified travelerFlew with LufthansaYYZ-LHRMay 2024
Bring water and less luggage on board if possible.

FAQs for booking flights from Ontario to the United Kingdom

  • How does KAYAK find such low prices on flights from Ontario to the United Kingdom?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to the United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to the United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to the United Kingdom is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to the United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Ontario to the United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to the United Kingdom?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in the United Kingdom?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United Kingdom is Edinburgh Turnhouse Airport (EDI), with an average flight price of £123.

  • What is the cheapest day to fly to the United Kingdom?

    Based on KAYAK data, the cheapest day to fly to the United Kingdom is Wednesday when return tickets can be as cheap as £494. On the other hand, the most expensive day to fly is Friday, when return prices are £532 on average.

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the afternoon, when round-trip flights cost £613 on average. Morning departures are around 8% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the evening, which is peak travel time and where the average cost of a ticket is £716.

  • What is the cheapest flight to the United Kingdom?

    The cheapest ticket to the United Kingdom from Ontario found in the last 72 hours was to Glasgow Intl Airport, at £454 return. The most popular route is Ottawa (YOW) to London Heathrow Airport (LHR) and the cheapest return airline ticket found on this route in the last 72 hours was £479.

  • What is the cheapest month to fly from Ontario to the United Kingdom?

    The cheapest month for flights from Ontario to the United Kingdom is October, when tickets cost £539 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is £850 and £777 respectively.

  • How far in advance should I book a flight from Ontario to the United Kingdom?

    To get a below-average price on the flight from Ontario to the United Kingdom, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

  • How long is the flight to the United Kingdom?

    An average direct flight from Ontario to the United Kingdom takes 11h 25m, covering a distance of 3388 miles. The shortest route is Montreal Pierre Elliott Trudeau Intl Airport (YUL) to Edinburgh (EDI) with an average flight time of 6h 25m.

  • What are the most popular destinations in the United Kingdom?

    Based on KAYAK flight searches, the most popular destination is London (88% of total searches to the United Kingdom). The next most popular destinations are Edinburgh (6%) and Manchester (3%). Searches for flights to Glasgow (2%), to Birmingham (1%), and to Southampton (0%) are also popular.

Book cheap flights from Ontario to the United Kingdom

Cheapest flights to the United Kingdom from Ontario found in 2025

Recent return flight deals

21/9Sun
1 stopSWISS
10h 20mYYZ-LHR
1/10Wed
1 stopSWISS
23h 10mLHR-YYZ
£237
14/10Tue
1 stop
12h 05mYYZ-EDI
20/10Mon
1 stop
13h 00mEDI-YYZ
£292
1/10Wed
directWestJet
6h 50mYYZ-EDI
10/10Fri
directWestJet
7h 40mEDI-YYZ
£318
27/9Sat
directWestJet
6h 50mYYZ-EDI
1/10Wed
directWestJet
7h 40mEDI-YYZ
£328
10/11Mon
1 stopTAP AIR PORTUGAL
19h 55mYUL-LHR
21/11Fri
1 stopTAP AIR PORTUGAL
17h 00mLHR-YUL
£354
5/11Wed
1 stopTAP AIR PORTUGAL
12h 45mYUL-LHR
17/11Mon
1 stopTAP AIR PORTUGAL
17h 00mLHR-YUL
£355
4/11Tue
1 stopIcelandair
10h 10mYYZ-LGW
11/11Tue
1 stopIcelandair
11h 20mLGW-YYZ
£358
19/11Wed
1 stopIcelandair
18h 45mYYZ-LHR
3/12Wed
1 stopIcelandair
26h 40mLHR-YYZ
£359
4/9Thu
1 stopAir Transat
9h 40mYUL-LGW
9/9Tue
directAir Transat
7h 40mLGW-YUL
£359
3/9Wed
1 stopAir Transat
30h 50mYUL-LGW
10/9Wed
1 stopAir Transat
14h 40mLGW-YUL
£360

Search by stops

Search by airline

Search by price

Recent one-way flight deals

1/10Wed
directWestJet
6h 50mYYZ-EDI
£117
16/7Wed
directWestJet
6h 50mYYZ-EDI
£127
1/10Wed
1 stop
17h 00mYYZ-LTN
£142
1/10Wed
1 stop
13h 30mYYZ-STN
£142
6/10Mon
1 stopPorter Airlines
11h 20mYTZ-LGW
£166
10/10Fri
directAir Transat
7h 00mYYZ-LGW
£169
6/10Mon
1 stopPorter Airlines
12h 50mYYZ-LGW
£171
1/10Wed
1 stopAir Transat
31h 50mYTZ-LGW
£171
17/8Sun
1 stopTAP AIR PORTUGAL
13h 45mYYZ-LHR
£171
17/8Sun
1 stopTAP AIR PORTUGAL
14h 50mYYZ-LHR
£172

Search by stops

Search by airline

Search by price

Last minute flights from Ontario to the United Kingdom

Last minute flight, train and bus deals

6/7Sun
direct
6h 50mYYZ-EDI
14/8Thu
multi-stop
19h 01mEDI-YYZ
£419
6/7Sun
direct
6h 50mYYZ-EDI
14/8Thu
multi-stop
19h 01mEDI-YYZ
£421
7/7Mon
directWestJet
6h 50mYYZ-EDI
14/8Thu
directWestJet
7h 40mEDI-YYZ
£427
8/7Tue
multi-stopPorter Airlines
10h 50mYYZ-LGW
16/9Tue
directPorter Airlines
8h 00mLGW-YYZ
£432
8/7Tue
directPorter Airlines
7h 05mYYZ-LGW
16/9Tue
directPorter Airlines
8h 00mLGW-YYZ
£434
5/7Sat
multi-stopAir Canada
14h 20mYYZ-LHR
22/7Tue
multi-stopAir Canada
14h 48mLHR-YYZ
£443
7/7Mon
directWestJet
6h 50mYYZ-EDI
14/8Thu
directWestJet
7h 40mEDI-YYZ
£445
5/7Sat
multi-stopAir Canada
11h 05mYYZ-EDI
19/7Sat
directAir Canada
7h 00mEDI-YYZ
£454
4/7Fri
multi-stopUnited Airlines
13h 40mYYZ-LHR
11/7Fri
multi-stopUnited Airlines
21h 00mLHR-YYZ
£529
4/7Fri
multi-stopUnited Airlines
14h 10mYUL-LHR
8/7Tue
multi-stopUnited Airlines
19h 54mLHR-YUL
£618

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to the United Kingdom

Cabin class types available on flights to Ontario

Cabin classes available on flights to Ontario. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.