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£120+ 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 19/9. 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 Jul — 24 Jul1
1 adult

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 12 July 2025.

Good round-trip deal

£111 or less

Good one-way deal

£58 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

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 12 July 2025.

Mon 1/906:45YUL - LGW
1 stop23h 00mAir Transat
Mon 8/911:35LGW - YUL
Nonstop7h 40mAir Transat
Deal found 11/7£397
Wed 1/1021:55YUL - LHR
Nonstop6h 40mAir Canada
Wed 8/1006:50LHR - YUL
1 stop9h 45mAir Canada
Deal found 11/7£397
Thu 2/1021:55YUL - LHR
Nonstop6h 40mMultiple Airlines
Mon 6/1006:50LHR - YUL
1 stop9h 45mMultiple Airlines
Deal found 11/7£398
Wed 3/918:00YUL - LGW
1 stop11h 45mPorter Airlines
Mon 8/909:40LGW - YUL
1 stop12h 40mPorter Airlines
Deal found 11/7£398
Tue 9/916:10YYZ - LGW
1 stop12h 40mAir Transat
Sat 13/909:40LGW - YYZ
Nonstop8h 05mAir Transat
Deal found 9/7£402
Tue 9/911:15YTZ - LGW
1 stop17h 35mAir Transat
Sat 13/911:35LGW - YTZ
1 stop13h 25mAir Transat
Deal found 9/7£403
Thu 4/923:20YYZ - LHR
1 stop26h 10mAir Canada
Thu 11/917:40LHR - YYZ
Nonstop7h 50mAir Canada
Deal found 11/7£403
Sun 21/923:55YYZ - STN
1 stop16h 20mMultiple Airlines
Wed 8/1009:05STN - YYZ
1 stop11h 45mMultiple Airlines
Deal found 8/7£403
Mon 6/1016:20YTZ - LHR
1 stop9h 10mAir Canada
Sat 18/1012:40LHR - YTZ
1 stop10h 56mAir Canada
Deal found 11/7£404
Thu 4/918:05YYZ - LHR
Nonstop7h 10mAmerican Airlines
Mon 8/909:50LHR - YYZ
2 stops18h 35mAmerican Airlines
Deal found 10/7£404
Wed 3/922:45YUL - LHR
1 stop11h 50mTAP AIR PORTUGAL
Mon 8/911:20LHR - YUL
1 stop14h 50mTAP AIR PORTUGAL
Deal found 11/7£404
Thu 18/918:05YYZ - LHR
Nonstop7h 10mBritish Airways
Fri 26/913:20LHR - YYZ
Nonstop7h 40mBritish Airways
Deal found 11/7£404

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

Fly to

Heathrow

Route

Depart

Return

Price

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 1/9

06:45-10:45

1 stop23h 00m

London Gatwick

Wed 10/9

11:35-14:15

Nonstop7h 40m

£397

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

21:55-09:35

Nonstop6h 40m

London Heathrow

Wed 8/10

06:50-11:35

1 stop9h 45m

£397

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 2/10

21:55-09:35

Nonstop6h 40m

London Heathrow

Mon 6/10

06:50-11:35

1 stop9h 45m

£398

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 3/9

18:00-10:45

1 stop11h 45m

London Gatwick

Mon 8/9

09:40-17:20

1 stop12h 40m

£398

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Tue 9/9

16:10-09:50

1 stop12h 40m

London Gatwick

Sat 13/9

09:40-12:45

Nonstop8h 05m

£402

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 4/9

23:20-06:30

1 stop26h 10m

London Heathrow

Thu 11/9

17:40-20:30

Nonstop7h 50m

£403

TorontoLondon

YYZ - STN

YYZSTN

Toronto Pearson Intl

Sun 21/9

23:55-21:15

1 stop16h 20m

London Stansted

Wed 8/10

09:05-15:50

1 stop11h 45m

£403

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Tue 9/9

11:15-09:50

1 stop17h 35m

London Gatwick

Sat 13/9

11:35-20:00

1 stop13h 25m

£403

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 4/9

18:05-06:15

Nonstop7h 10m

London Heathrow

Mon 8/9

09:50-23:25

2 stops18h 35m

£404

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 3/9

22:45-15:35

1 stop11h 50m

London Heathrow

Mon 8/9

11:20-21:10

1 stop14h 50m

£404

Flights are sorted by cheapest return flights first.

Deals found on 10/7

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, November is the cheapest month in which you can book a flight from Region of Ontario (average of £302). Flying from Region of Ontario in July will prove the most costly (average of £489). 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 £94
Air Transat
Air Transat
From £112
WestJet
WestJet
From £74
Porter Airlines
Porter Airlines
From £51

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

The cheapest city to fly to from Region of Ontario is Calgary, with prices starting at £24. Explore other affordable destinations below.

Calgary
Calgary
From £33
Abbotsford
Abbotsford
From £52
Halifax Intl
Halifax Intl
From £60
Toronto
Toronto
From £77

Airline reviews for flights from Ontario

Get insights into the airlines that provide service from Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Ontario. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Read through reviews of airlines serving Ontario, such as Delta, Austrian Airlines, andSWISS. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,951 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
811 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,655 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,848 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Brussels Airlines
7.3
Good
349 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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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 12 July 2025.

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

    Toronto Pearson Intl airport offers the cheapest routes to Edinburgh, from £278; whereas Toronto Island airport is typically cheaper if you're flying to Edinburgh, from £359. 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 November; 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 £278 round trip
    Travel from Toronto to Glasgow from £300 round trip
    Travel from Toronto to Edinburgh from £328 round trip
    Travel from Toronto to Manchester from £376 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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