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£78+ Cheap flights from Ontario

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
YYZ — LHR
30 Mar — 6 Apr1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Ontario

Discover essential information about flights departing from Ontario, including flight schedules, destinations, airlines operating at the Ontario airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 28 February 2026.

Good round-trip deal

£107 or less

Good one-way deal

£63 or less
Price to beat on a round-trip flight from Ontario.
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Price to beat on a one-way flight from Ontario.
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Find flights from Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Ontario
Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 28 February 2026.

Mon 18/522:45
YUL
-
LGW
1 stop11h 50m
TAP AIR PORTUGAL
Wed 17/610:35
LGW
-
YUL
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 25/2£369
Mon 20/422:45
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Wed 29/406:00
LHR
-
YUL
1 stop19h 45m
TAP AIR PORTUGAL
Deal found 24/2£369
Mon 1/622:45
YUL
-
LGW
1 stop11h 50m
TAP AIR PORTUGAL
Wed 10/610:35
LGW
-
YUL
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 24/2£370
Mon 18/522:45
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Wed 17/611:20
LHR
-
YUL
1 stop14h 25m
TAP AIR PORTUGAL
Deal found 25/2£370
Mon 20/422:45
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Tue 28/419:50
LHR
-
YUL
1 stop29h 55m
TAP AIR PORTUGAL
Deal found 25/2£372
Sun 14/622:45
YUL
-
LGW
1 stop30h 00m
TAP AIR PORTUGAL
Mon 22/610:35
LGW
-
YUL
1 stop15h 35m
TAP AIR PORTUGAL
Deal found 24/2£375
Fri 5/622:45
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Mon 15/613:45
LHR
-
YUL
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 24/2£375
Mon 18/522:45
YUL
-
LGW
1 stop11h 50m
TAP AIR PORTUGAL
Mon 22/610:35
LGW
-
YUL
1 stop15h 35m
TAP AIR PORTUGAL
Deal found 26/2£375
Mon 1/622:45
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Sun 14/611:20
LHR
-
YUL
1 stop14h 50m
TAP AIR PORTUGAL
Deal found 25/2£375
Mon 15/622:45
YUL
-
LGW
1 stop30h 00m
TAP AIR PORTUGAL
Mon 22/610:35
LGW
-
YUL
1 stop15h 35m
TAP AIR PORTUGAL
Deal found 25/2£376
Fri 5/622:45
YUL
-
LGW
1 stop11h 55m
TAP AIR PORTUGAL
Wed 17/610:35
LGW
-
YUL
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 27/2£377
Sun 31/522:45
YUL
-
LHR
1 stop18h 15m
TAP AIR PORTUGAL
Sun 21/619:50
LHR
-
YUL
1 stop30h 20m
TAP AIR PORTUGAL
Deal found 24/2£377

Find flights from Ontario within your budget

 
Find flights departing from Ontario that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 28 February 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Route

Depart

Return

Price

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Sat 25/4

22:35-10:45

Nonstop7h 10m

London Gatwick

Thu 7/5

12:40-15:40

Nonstop8h 00m

£392

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Mon 27/4

22:35-10:45

Nonstop7h 10m

London Gatwick

Thu 30/4

12:40-16:00

Nonstop8h 20m

£392

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

22:05-09:50

Nonstop6h 45m

London Gatwick

Tue 12/5

12:40-20:30

1 stop12h 50m

£395

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Sun 19/4

22:35-10:45

Nonstop7h 10m

London Gatwick

Wed 6/5

12:40-15:40

Nonstop8h 00m

£403

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 23/3

21:10-07:20

1 stop30h 10m

London Gatwick

Wed 8/4

17:55-12:50

1 stop23h 55m

£415

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 7/4

18:30-06:35

Nonstop7h 05m

London Heathrow

Sun 19/4

12:05-14:55

Nonstop7h 50m

£430

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 20/4

19:20-10:45

1 stop10h 25m

London Gatwick

Wed 6/5

12:40-19:32

1 stop11h 52m

£433

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Tue 28/4

22:35-10:45

Nonstop7h 10m

London Gatwick

Sun 17/5

11:35-18:38

1 stop12h 03m

£438

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 14/4

18:40-23:05

1 stop23h 25m

London Gatwick

Tue 21/4

08:20-10:45

1 stop31h 25m

£446

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 30/3

16:44-10:30

1 stop12h 46m

London Heathrow

Sun 5/4

13:15-16:05

Nonstop7h 50m

£453

Flights are sorted by cheapest return flights first.

Deals found on 25/2

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ontario

Have a flexible travel schedule? Discover the best time to fly from Ontario with our price prediction graph.
Estimated return 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.

Travel insights for flights from Ontario

Get recent, data-driven insights about flights from Ontario including ideal travel times, pricing trends, and more.

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

Currently, May is the cheapest month in which you can book a flight from Region of Ontario (average of £361). Flying from Region of Ontario in July will prove the most costly (average of £490). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Region of Ontario?

Many airlines operate round-trip flights from Region of Ontario: Air Canada, British Airways, Virgin Atlantic, Lufthansa, Icelandair. These airlines fly to the following popular destinations: London.

Air Canada
Air Canada
From £54
Air Transat
Air Transat
From £137
WestJet
WestJet
From £76
Porter Airlines
Porter Airlines
From £43

What is the cheapest place to fly to from Region of Ontario?

The cheapest city to fly to from Region of Ontario is Halifax Intl, with prices starting at £58. Explore other affordable destinations below.

Halifax Intl
Halifax Intl
From £58
Calgary
Calgary
From £69
Vancouver Intl
Vancouver Intl
From £78

Browse thousands of different options on Cheapflights for your next trip

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Direct flights from Canada

Book a direct flight from one of these other cities located in Canada.
Direct flights from Ottawa
Direct flights from London
Direct flights from Thunder Bay
Direct flights from Sudbury
Direct flights from Timmins

Related info for your journey

Access useful and relevant information related to your journey from Ontario. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 28 February 2026.

  • What is the cheapest airport to fly out of Region of Ontario?

    Toronto Pearson Intl airport offers the cheapest routes to Edinburgh, from £341; whereas Toronto Island airport is typically cheaper if you're flying to London, from £372. It's best to make sure you are flexible on dates to find the cheapest possible flight options for your journey.

  • What is the cheapest month to fly from Region of Ontario?

    At the present moment the cheapest month to fly from Region of Ontario is currently May; with July being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Region of Ontario?

    Check out the cheapest flights from Region of Ontario to embark to:
    Travel from Toronto to London from £341 round trip
    Travel from Toronto to Edinburgh from £347 round trip
    Travel from Toronto to Glasgow from £350 round trip
    Travel from Toronto to Manchester from £366 round trip

  • How does Cheapflights help users find flights from Ontario?

    Deals for flights from Ontario 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 to your preference, such as price, airport, cabin class, and plenty of other options.

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

    It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario.

  • Can Cheapflights find flights from Ontario with no change fees?

    Yes! Cheapflights helps users easily find flights from Ontario with no change fees.

  • Can Cheapflights notify me if prices for flights from Ontario become cheaper?

    Not ready to book yet? You can track prices for flights from Ontario on Cheapflights with our Price Alerts feature and get notified when better prices are available.

See more FAQs

Fly with Cheapflights

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

How does Cheapflights help users find flights from Ontario?

Deals for flights from Ontario 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 to your preference, such as price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario.

Can Cheapflights find flights from Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario with no change fees.

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

Not ready to book yet? You can track prices for flights from Ontario on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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