£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 5/11. 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
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Good round-trip deal

£88 or less

Good one-way deal

£52 or less
Price to beat on a round-trip flight from Ontario.
Search Deals
Price to beat on a one-way flight from Ontario.
Search Deals

Find flights from Ontario

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 17 September 2025.

Thu 16/1023:00YYZ - LHR
1 stop31h 55mIcelandair
Wed 22/1021:25LHR - YYZ
1 stop26h 45mIcelandair
Deal found 16/9£381
Mon 6/1018:00YYZ - LGW
1 stop10h 50mAir Transat
Sat 13/1211:40LGW - YYZ
Nonstop8h 20mAir Transat
Deal found 16/9£381
Sat 25/1023:00YYZ - LHR
1 stop31h 50mIcelandair
Thu 6/1112:15LHR - YYZ
1 stop11h 00mIcelandair
Deal found 17/9£382
Fri 17/1023:00YYZ - LHR
1 stop31h 55mIcelandair
Thu 23/1021:25LHR - YYZ
1 stop29h 30mIcelandair
Deal found 16/9£383
Wed 15/1022:10YYZ - LTN
1 stop12h 15mMultiple Airlines
Mon 15/1211:45LTN - YYZ
2 stops32h 35mMultiple Airlines
Deal found 16/9£383
Tue 3/319:40YYZ - LHR
1 stop10h 10mIcelandair
Sun 15/320:35LHR - YYZ
1 stop26h 40mIcelandair
Deal found 14/9£383
Tue 27/121:35YYZ - LGW
Nonstop7h 10mAir Transat
Sun 1/211:40LGW - YYZ
Nonstop8h 20mAir Transat
Deal found 15/9£383
Thu 12/219:40YYZ - LHR
1 stop10h 10mIcelandair
Mon 16/220:35LHR - YYZ
1 stop26h 40mIcelandair
Deal found 17/9£384
Fri 14/1119:40YYZ - LGW
1 stop10h 15mIcelandair
Wed 26/1111:55LGW - YYZ
1 stop11h 20mIcelandair
Deal found 15/9£384
Wed 8/1023:00YYZ - LHR
1 stop31h 55mIcelandair
Wed 15/1021:25LHR - YYZ
1 stop29h 30mIcelandair
Deal found 16/9£385
Sat 22/1121:35YYZ - LGW
Nonstop7h 10mAir Transat
Wed 3/1211:40LGW - YYZ
Nonstop8h 20mAir Transat
Deal found 15/9£385
Thu 23/1023:00YYZ - LHR
1 stop31h 55mIcelandair
Thu 6/1112:15LHR - YYZ
1 stop11h 00mIcelandair
Deal found 15/9£386

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

Fly to

Heathrow

Route

Depart

Return

Price

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 16/10

23:00-11:55

1 stop31h 55m

London Heathrow

Tue 21/10

21:25-19:10

1 stop26h 45m

£381

TorontoLondon

YYZ - STN

YYZSTN

Toronto Pearson Intl

Mon 29/9

18:00-10:50

2 stops11h 50m

London Stansted

Mon 6/10

22:00-15:24

2 stops22h 24m

£391

TorontoLondon

YYZ - STN

YYZSTN

Toronto Pearson Intl

Sun 9/11

17:25-11:05

1 stop12h 40m

London Stansted

Tue 18/11

06:30-15:55

1 stop14h 25m

£391

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Wed 3/12

21:35-09:45

Nonstop7h 10m

London Gatwick

Tue 16/12

11:40-15:00

Nonstop8h 20m

£392

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Tue 11/11

21:35-09:45

Nonstop7h 10m

London Gatwick

Mon 17/11

11:40-15:00

Nonstop8h 20m

£392

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Thu 6/11

21:35-09:45

Nonstop7h 10m

London Gatwick

Sun 16/11

11:40-15:00

Nonstop8h 20m

£392

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Tue 18/11

21:35-09:45

Nonstop7h 10m

London Gatwick

Mon 1/12

11:40-15:00

Nonstop8h 20m

£392

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Thu 6/11

21:35-09:45

Nonstop7h 10m

London Gatwick

Mon 17/11

11:40-15:00

Nonstop8h 20m

£392

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Mon 10/11

21:35-09:45

Nonstop7h 10m

London Gatwick

Mon 17/11

11:40-15:00

Nonstop8h 20m

£392

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Wed 15/10

16:10-09:35

2 stops12h 25m

London Heathrow

Wed 5/11

09:00-21:35

2 stops17h 35m

£395

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 60 results
1
2
3
...
6

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 £341). Flying from Region of Ontario in July will prove the most costly (average of £485). 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, Aer Lingus. These airlines fly to the following popular destinations: London.

Air Canada
Air Canada
From £92
Air Transat
Air Transat
From £164
WestJet
WestJet
From £74
Porter Airlines
Porter Airlines
From £105

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

The cheapest city to fly to from Region of Ontario is Ottawa, with prices starting at £38. Explore other affordable destinations below.

Ottawa
Ottawa
From £51
Vancouver Intl
Vancouver Intl
From £69
Montreal
Montreal
From £70

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 17 September 2025.

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

    Toronto Pearson Intl airport offers the cheapest routes to Edinburgh, from £295; whereas Toronto Island airport is typically cheaper if you're flying to London, from £370. 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 New York from £186 round trip
    Travel from Toronto to London from £292 round trip
    Travel from Toronto to Manchester from £355 round trip
    Travel from Toronto to Glasgow from £383 round trip
    Travel from Toronto to Edinburgh from £388 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.