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£180+ Cheap flights to Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
— YYZ
18 Jul — 25 Jul1
1 adult

Flights to Ontario in 2025

Find the latest flights to Ontario in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 13 July 2025.

Return from

£344

One-way from

£249

Popular in

December

Cheapest in

February

Average price

£514

Good round-trip deal

£354 or less

Good one-way deal

£247 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 11/9-28/9
  • 2 total stops
  • 32h 05m total
  • London to Toronto
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5/10
  • 5/10
  • 2 total stops
  • 22h 40m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£10 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
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Average for return flights in July 2025
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Price to beat on a round-trip flight from London to Ontario.
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Price to beat on a one-way flight from London to Ontario.
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Find flights to Ontario

Browse one-way and return flights deals to Ontario on Cheapflights. Flight deals are based on user searches and were last updated on 13 July 2025
Explore Ontario
Flights to Toronto
Flights to Ottawa
Flights to Windsor
Flights to Thunder Bay
Flights to London

Find flight deals to Ontario

Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 13 July 2025.

Thu 11/906:00LHR - YYZ
1 stop20h 20mTAP AIR PORTUGAL
Sun 28/917:35YYZ - LHR
1 stop11h 45mTAP AIR PORTUGAL
Deal found 10/7£344
Thu 4/911:35LGW - YTZ
1 stop11h 35mAir Transat
Wed 10/917:30YTZ - LGW
1 stop11h 20mAir Transat
Deal found 10/7£344
Wed 3/915:40LGW - YYZ
1 stop11h 15mIcelandair
Fri 12/920:50YYZ - LGW
1 stop12h 50mIcelandair
Deal found 12/7£344
Thu 30/1020:35LHR - YYZ
1 stop26h 40mIcelandair
Thu 4/1219:45YYZ - LHR
1 stop10h 05mIcelandair
Deal found 10/7£345
Mon 6/1008:15STN - YYZ
1 stop10h 55mMultiple Airlines
Mon 20/1022:10YYZ - STN
1 stop11h 10mMultiple Airlines
Deal found 10/7£345
Fri 29/811:35LGW - YYZ
1 stop10h 50mAir Transat
Fri 5/907:40YYZ - LGW
1 stop21h 10mAir Transat
Deal found 10/7£346
Sun 31/809:40LGW - YUL
1 stop14h 40mAir Transat
Mon 8/916:00YUL - LGW
1 stop10h 55mAir Transat
Deal found 12/7£347
Mon 6/1009:00LTN - YYZ
1 stop10h 10mMultiple Airlines
Sat 18/1022:10YYZ - LTN
1 stop19h 20mMultiple Airlines
Deal found 10/7£349
Thu 4/906:50LHR - YYZ
1 stop9h 50mAir Canada
Wed 10/923:35YYZ - LHR
Nonstop7h 15mAir Canada
Deal found 12/7£351
Fri 26/917:50LHR - YYZ
Nonstop7h 50mVirgin Atlantic
Fri 10/1022:30YYZ - LHR
Nonstop7h 10mVirgin Atlantic
Deal found 12/7£352
Fri 5/913:20LHR - YYZ
Nonstop7h 40mBritish Airways
Mon 22/922:00YYZ - LHR
Nonstop7h 15mBritish Airways
Deal found 12/7£362
Sat 1/1118:40LHR - YUL
1 stop25h 35mSWISS
Sat 8/1116:50YUL - LHR
1 stop10h 15mSWISS
Deal found 11/7£362

Cheapflights Fare Finder

Locate flights to Ontario that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 13 July 2025.
Use the filters below to find and compare flights to Ontario that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 11/9

06:00-21:20

1 stop20h 20m

Toronto Pearson Intl

Sun 28/9

17:35-10:20

1 stop11h 45m

£344

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Thu 4/9

11:35-18:10

1 stop11h 35m

Toronto Island

Wed 10/9

17:30-09:50

1 stop11h 20m

£344

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Wed 3/9

15:40-21:55

1 stop11h 15m

Toronto Pearson Intl

Mon 22/9

23:00-14:35

1 stop10h 35m

£344

LondonToronto

STN - YYZ

STNYYZ

London Stansted

Mon 6/10

08:15-14:10

1 stop10h 55m

Toronto Pearson Intl

Mon 20/10

22:10-14:20

1 stop11h 10m

£345

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 30/10

20:35-19:15

1 stop26h 40m

Toronto Pearson Intl

Thu 4/12

19:45-10:50

1 stop10h 05m

£345

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Fri 29/8

11:35-17:25

1 stop10h 50m

Toronto Pearson Intl

Fri 5/9

07:40-09:50

1 stop21h 10m

£346

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Sun 31/8

09:40-19:20

1 stop14h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 8/9

16:00-07:55

1 stop10h 55m

£347

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Mon 6/10

09:00-14:10

1 stop10h 10m

Toronto Pearson Intl

Sat 18/10

22:10-22:30

1 stop19h 20m

£349

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 4/9

06:50-11:40

1 stop9h 50m

Toronto Pearson Intl

Wed 10/9

23:35-11:50

Nonstop7h 15m

£351

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 26/9

17:50-20:40

Nonstop7h 50m

Toronto Pearson Intl

Fri 10/10

22:30-10:40

Nonstop7h 10m

£352

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 54 results
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Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to 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.

Cheapflights Insights

Everything you need to know about your flight to Ontario

How long is the flight to Ontario?

On average, a flight from London to Ontario takes 16 hours 18 minutes. Flights to Ontario from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Ontario?

Use this chart to determine the cheapest time to fly return from London to Ontario. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Ontario should consider flying on Monday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Thursday evenings, when prices are usually at their highest.

Weekly flight availability to Ontario

The most flights from London to Ontario are scheduled on a Tuesday (43 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (31 on average).

What are the most popular airlines that fly to Ontario?

The most popular airlines flying from London to Ontario are Air Canada, Lufthansa and Air Transat.

Air Canada
Air Canada
From £53
Air Transat
Air Transat
From £396
Lufthansa
Lufthansa
From £401
British Airways
British Airways
From £398

What are the cheapest airlines that fly to Ontario?

The cheapest airlines flying from London to Ontario are Aer Lingus, PLAY and Icelandair.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 51.0 - 83.0 inches per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

What are the most popular places to fly to in Ontario?

Destination popularity is based on the amount of flight searches to Ontario in the last few years. This data was updated on 13 July 2025.
The most popular places in Ontario to fly to are Toronto and Ottawa.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 13 July 2025.
Get a feel of what it's like to fly with Delta, Air Transat, andAustrian Airlines to Canada by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,952 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Delta
8.0
Very Good
7,952 reviews
Delta
8.0
Very Good
7,952 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Air Transat
7.8
Good
412 reviews
Delta
8.0
Very Good
7,952 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Austrian Airlines
7.6
Good
811 reviews
Delta
8.0
Very Good
7,952 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Air France
7.5
Good
1,468 reviews
Delta
8.0
Very Good
7,952 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
SWISS
7.5
Good
1,656 reviews
Delta
8.0
Very Good
7,952 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

FAQs about flying to Ontario

Getting around Ontario

Renting a car is often the best way to really explore Ontario. Reserve a rental car when you book your flight to Ontario, especially if you’re travelling during the peak season.

Bike paths and hiking trails are flanked throughout the province and many tourism offices have trail maps or guided tours for your convenience.

What is good to know if travelling to Ontario?

  • Don’t miss a trip to Niagara Falls. One of the most spectacular natural wonders in the world, Niagara Falls also includes plenty of parkland and wilderness attractions.
  • Sault Ste. Marie is located on Lake Superior on the US border with Michigan and hosts endless scenery of natural beauty. Take a train trip through the Agawa Canyon or a cruise through the Soo Locks.
  • If you’re visiting Toronto, save yourself some money and purchase a Toronto CityPass, which allows you to enter the top attractions at discounted prices. Each booklet of tickets is valid for nine days from when the first one is used. You can buy the package at the Royal Ontario Museum, the Art Gallery of Ontario, the Ontario Science Center, the CN Tower, Casa Loma, and the Toronto Zooany or online at www.citypass.com.

  • Can I find cheaper flights to Ontario if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ontario?

    Based on reviews from Cheapflights users, Air Canada is rated the highest out of the airlines that fly to Ontario.

  • What is the cheapest airport to fly to in Ontario?

    Toronto Region of Waterloo Intl is currently the cheapest airport to fly to in Ontario. One-way flights to Toronto Region of Waterloo Intl typically cost £13, while return flights cost around £48.

  • How much is a return flight to Ontario?

    A return flight to Ontario will typically cost around £276, however they can be found for as little as £112.

  • Where does the fastest flight to Ontario depart from?

    For those looking to save time traveling to Ontario, Edinburgh Turnhouse offers the quickest one-way flight (7 hours 0 minutes).

  • Does Toronto Pearson Intl have car hire?

    Yes. Those touching down at Toronto Pearson Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Toronto Pearson Intl?

    Yes. Toronto Pearson Intl has hotels nearby for those requiring accommodations. Sheraton Gateway Hotel in Toronto International Airport is the closest property to Toronto Pearson Intl (0.0 mi away from Toronto Pearson Intl).

See more FAQs

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Cheapflights makes it easy to find Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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Can Cheapflights find flights to Ontario with no change fees?

Yes, we can. To see specific flights to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Ontario today and book when you’re ready!

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