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£91+ 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 22/1. 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
8 jan — 15 jan1
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 9 dezembro 2025.

Good round-trip deal

£108 or less

Good one-way deal

£65 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 9 dezembro 2025.

sáb 2/520:45YYZ - LHR
1 stop10h 10mIcelandair
seg 11/513:05LHR - YYZ
1 stop14h 05mIcelandair
Deal found 7/12£425
sex 10/422:00YYZ - STN
1 stop11h 15mMultiple Airlines
sáb 25/406:30STN - YYZ
1 stop12h 45mMultiple Airlines
Deal found 7/12£425
sex 6/321:55YYZ - LTN
1 stop12h 30mMultiple Airlines
sáb 14/306:00LTN - YYZ
1 stop12h 15mMultiple Airlines
Deal found 7/12£426
qui 23/406:00YYZ - LHR
2 stops46h 20mScandinavian Airlines
dom 26/406:40LHR - YYZ
2 stops14h 00mScandinavian Airlines
Deal found 7/12£426
sex 16/119:35YYZ - STN
1 stop11h 00mMultiple Airlines
sex 23/106:30STN - YYZ
2 stops14h 45mMultiple Airlines
Deal found 6/12£426
seg 19/117:25YYZ - LTN
1 stop10h 10mMultiple Airlines
seg 26/106:00LTN - YYZ
1 stop14h 55mMultiple Airlines
Deal found 8/12£427
sáb 2/520:45YYZ - LHR
1 stop10h 10mIcelandair
dom 10/521:25LHR - YYZ
1 stop26h 45mIcelandair
Deal found 7/12£427
sex 1/523:20YYZ - LGW
1 stop10h 20mIcelandair
dom 17/515:40LGW - YYZ
1 stop11h 30mIcelandair
Deal found 7/12£427
sex 6/219:40YYZ - STN
2 stops17h 40mMultiple Airlines
sex 13/208:30STN - YYZ
2 stops14h 45mMultiple Airlines
Deal found 8/12£427
seg 19/118:10YYZ - LHR
Nonstop7h 20mAir Canada
seg 26/109:00LHR - YYZ
1 stop12h 25mAir Canada
Deal found 8/12£428
dom 8/221:35YYZ - LGW
Nonstop7h 10mAir Transat
seg 2/311:40LGW - YYZ
Nonstop8h 20mAir Transat
Deal found 8/12£428
qua 6/521:30YYZ - LTN
1 stop10h 05mMultiple Airlines
qua 13/506:15LTN - YYZ
1 stop12h 05mMultiple Airlines
Deal found 7/12£428

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 9 dezembro 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

ter 20/1

17:25-09:45

1 stop11h 20m

London Luton

sex 30/1

05:50-15:55

1 stop15h 05m

£430

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

qui 5/3

06:00-20:10

3 stops33h 10m

London Luton

seg 9/3

14:55-16:40

2 stops29h 45m

£430

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

qua 15/4

20:45-11:55

1 stop10h 10m

London Heathrow

qui 30/4

13:05-22:10

1 stop14h 05m

£436

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

ter 28/4

20:45-14:40

1 stop12h 55m

London Gatwick

ter 19/5

15:40-22:10

1 stop11h 30m

£445

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

sex 1/5

23:20-20:20

1 stop16h 00m

London Heathrow

qui 7/5

13:05-19:10

1 stop11h 05m

£446

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

sex 30/1

10:15-09:45

1 stop18h 30m

London Gatwick

ter 3/2

11:40-20:55

1 stop14h 15m

£450

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

dom 3/5

22:45-10:45

Nonstop7h 00m

London Gatwick

sáb 16/5

09:40-12:45

Nonstop8h 05m

£452

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

sáb 31/1

19:55-11:20

1 stop10h 25m

London Luton

sáb 7/2

09:05-11:50

1 stop31h 45m

£454

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

qua 21/1

12:12-09:20

2 stops16h 08m

London Heathrow

ter 27/1

10:00-19:15

1 stop14h 15m

£456

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

dom 1/2

06:00-09:20

2 stops22h 20m

London Heathrow

ter 10/2

19:50-15:40

2 stops24h 50m

£457

Flights are sorted by cheapest return flights first.

Deals found on 7/12

Showing 1-10 of 60 results
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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, January is the cheapest month in which you can book a flight from Region of Ontario (average of £352). Flying from Region of Ontario in July will prove the most costly (average of £499). 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 £69
Air Transat
Air Transat
From £142
WestJet
WestJet
From £55
Porter Airlines
Porter Airlines
From £79

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

The cheapest city to fly to from Region of Ontario is Montreal, with prices starting at £52. Explore other affordable destinations below.

Montreal
Montreal
From £52
Vancouver Intl
Vancouver Intl
From £62
Halifax Intl
Halifax Intl
From £62
Ottawa
Ottawa
From £64

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 9 dezembro 2025.

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

    Toronto Pearson Intl airport offers the cheapest routes to Edinburgh, from £349; whereas Toronto Island airport is typically cheaper if you're flying to London, from £446. 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 January; 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 £349 round trip
    Travel from Toronto to Edinburgh from £362 round trip
    Travel from Toronto to Manchester from £373 round trip
    Travel from Toronto to Glasgow from £399 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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