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Cheap Flights from Ontario (ONT) to Toronto (YTOA)

Compare Ontario International to Toronto flight deals

Find the cheapest month or even day of the year to fly to Toronto

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Flight deals from Ontario International to Toronto

Looking for a cheap last-minute deal or the best return flight from Ontario International to Toronto? Find the lowest prices on one-way and return tickets right here.
Toronto.$591 per passenger.Departing Thu, 7 Aug, returning Thu, 14 Aug.Return flight with Frontier Airlines and Porter Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Thu, 7 Aug, arriving in Toronto Pearson International.Inbound indirect flight with Porter Airlines, departs from Toronto Pearson International on Thu, 14 Aug, arriving in Ontario International.Price includes taxes and charges.From $591, select.
Toronto.$854 per passenger.Departing Sat, 20 Sep, returning Thu, 25 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Sat, 20 Sep, arriving in Toronto Pearson International.Inbound indirect flight with Delta, departs from Toronto Pearson International on Thu, 25 Sep, arriving in Ontario International.Price includes taxes and charges.From $854, select.
Toronto.$1,010 per passenger.Departing Fri, 27 Jun, returning Fri, 4 Jul.Return flight with Frontier Airlines and Porter Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Fri, 27 Jun, arriving in Toronto Pearson International.Inbound indirect flight with Porter Airlines, departs from Toronto Island on Fri, 4 Jul, arriving in Ontario International.Price includes taxes and charges.From $1,010, select.
Toronto.$1,045 per passenger.Departing Mon, 28 Jul, returning Wed, 6 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Mon, 28 Jul, arriving in Toronto Pearson International.Inbound indirect flight with Delta, departs from Toronto Pearson International on Wed, 6 Aug, arriving in Ontario International.Price includes taxes and charges.From $1,045, select.
Toronto.$1,052 per passenger.Departing Fri, 26 Sep, returning Wed, 8 Oct.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Fri, 26 Sep, arriving in Toronto Pearson International.Inbound indirect flight with United, departs from Toronto Pearson International on Wed, 8 Oct, arriving in Ontario International.Price includes taxes and charges.From $1,052, select.
Toronto.$1,079 per passenger.Departing Thu, 9 Oct, returning Mon, 3 Nov.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Thu, 9 Oct, arriving in Toronto Pearson International.Inbound indirect flight with United, departs from Toronto Pearson International on Mon, 3 Nov, arriving in Ontario International.Price includes taxes and charges.From $1,079, select.
Toronto.$1,130 per passenger.Departing Mon, 22 Dec, returning Mon, 29 Dec.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Mon, 22 Dec, arriving in Toronto Pearson International.Inbound indirect flight with United, departs from Toronto Pearson International on Mon, 29 Dec, arriving in Ontario International.Price includes taxes and charges.From $1,130, select.
Toronto.$1,222 per passenger.Departing Wed, 25 Jun, returning Sun, 29 Jun.Return flight with Frontier Airlines and United.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Wed, 25 Jun, arriving in Toronto Pearson International.Inbound indirect flight with United, departs from Toronto Pearson International on Sun, 29 Jun, arriving in Ontario International.Price includes taxes and charges.From $1,222, select.

The cheapest month to fly from Ontario International Airport to Toronto

We’re always keeping an eye on fares, to help you find the lowest one in seconds. Check out the Ontario International Airport to Toronto flight prices forecast over the next 12 months.
Jun
from $1,222
Jul
from $1,330
Aug
from $591
Sep
from $854
Oct
Find prices
Nov
Find prices
Dec
from $1,130
Jan
Find prices
Feb
Find prices
Mar
Find prices
Apr
from $1,347
May
Find prices
Cheapest month:August
Most expensive month:April

Alternative Ontario International to Toronto routes

Looking for the cheapest, fastest or easiest route from Ontario International to Toronto? You could fly into the following airports instead.

Ontario to Toronto: Flight information

The things to know before you go.
Cheapest flight found$591
Cheapest month to flyAugust

Finding cheap flights from Ontario International to Toronto: Frequently asked questions

There are 4 airports in Toronto: Toronto Island, Toronto Pearson International, Hamilton, and Kitchener / Waterloo.
The best price we found for a return flight from Ontario International to Toronto is $591. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Ontario International to Toronto. But we found flights with one or more stops from $591.
As of June 2025, there are no flights flying from Ontario International to Toronto.
The cheapest month to fly from Ontario International to Toronto is usually August.
If you're flying from Ontario International Airport, the cheapest airport near Toronto is Toronto Pearson International – which is 20.4 km away from the centre of Toronto. We've found flights into this airport from $591.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Toronto on Thursday, 7 August 2025.
No airlines currently offer direct flights between Ontario International Airport and Toronto. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Toronto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Toronto is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 17°C. July is typically the warmest month in Toronto, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -8°C. The rainiest month is September.
Currently, Frontier Airlines offers the cheapest flight tickets to Toronto.

Travelling from Ontario International Airport (ONT) to Toronto: what you need to know

  • Ontario International Airport is located in Ontario. Based in the UTC-4 timezone, Toronto is three hours ahead of Ontario.

  • To avoid rushing for your ONT to Toronto flight, leave plenty of time for things like check-in and baggage drop. Arriving two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • Planning to travel during a peak time like public or school holidays? Expect longer lines at security and check-in. To give yourself peace of mind, arrive up to four hours before international flights and two hours before domestic departures.

  • We make it easy to book flight tickets from ONT to Toronto with a stopover. To see your options, uncheck 'Direct flights only.' Next, pick a flight that has a stop long enough to tour your chosen city. The most sought-after stopovers include:

    • Denver International Airport (DEN)

    • Harry Reid Airport (formerly McCarran Airport) (LAS)

    • Nashville International Airport (BNA)

  • The journey from central Ontario to ONT takes about 1 hour 30 minutes on public transport. If you ride-share, drive or take a cab, you'll cover the 5 kilometres in 10 minutes or so, depending on traffic conditions.

  • Searching for a hotel close to ONT? If you're boarding an early flight from Ontario International Airport to Toronto, these stays will get you from your pillow to the plane in no time:

  • 83.6% of flights leaving Ontario International Airport land at their destination according to schedule. With its solid on-time performance, you're unlikely to face delays when setting off from ONT.

  • You'll find ONT at 2900 E. Airport Drive.

How to find the cheapest flights from Ontario International Airport (ONT) to Toronto

  • $250 is the lowest price we've found for a one-way Ontario International Airport to Toronto flight. A return ticket right now is $591. Depending on the availability and when you book, these fares can change.

  • Don't leave everything to the last moment. You're more likely to land cheap flights from ONT to Toronto if you book early. Airlines often offer some amazing early bird rates.

  • The 'Whole month' tool will show you the cheapest tickets from Ontario International Airport to Toronto across each month. It's an easy way to find a bargain if your travel plans aren't set in stone.

  • Picking up a cheap flight from ONT to Toronto couldn't be easier with Price Alerts. All you need to do is create one of these automatic notifications and we'll notify you as soon as a cheaper option becomes available.

  • Save on your flight from Ontario International Airport to Toronto with the help of our filters. Select your preferred times, airlines and number of stops, then sort the results by 'Cheapest' to see the best deals.

Airports in Toronto

Pearson International Airport (YYZ)

  • Pearson International Airport (YYZ) is around 27 kilometres from the centre of Toronto. If you're opting for a ride-share or a cab, the drive takes roughly 25 minutes.

  • When travelling on public transport, expect a journey time of around 50 minutes.

  • If you're coming in on a late flight from Ontario International Airport to Toronto, few things beat the convenience of staying near the terminal. Grab your bags from the carousel and then be showered and sleeping not long after at one of these accommodation options near YYZ:

  • Explore without limits with a Pearson International Airport rental car. Pick up your wheels from Routes Car Rentals, Green Motion or Thrifty and venture far and wide through Toronto and beyond.

  • Reserving your ride from Pearson International Airport about three weeks before your flight from ONT to Toronto can help you get the lowest rate.

Billy Bishop Toronto City Airport (YTZ)

  • Central Toronto is located around 3 kilometres from Billy Bishop Toronto City Airport (YTZ). Once your flight from Ontario International Airport to Toronto has landed and you've navigated your way to arrivals, the drive should take about 35 minutes.

  • You can expect the trip to take about 40 minutes on public transport.

  • Hang the 'Do not disturb' sign on your door and rest at a hotel near YTZ. Here are a few options where you can take a load off after your ONT to Toronto flight:

  • Hertz, National and Avis make collecting a Billy Bishop Toronto City Airport rental car simple. These companies are located in or around the terminal and will have you on your way in a heartbeat.

  • Avoid last-minute price surges. Securing your ride one week ahead of your arrival at YTZ will help you save.

Region of Waterloo International Airport (YKF)

  • Make your way to the city centre after your flight from Ontario International Airport to Toronto has landed. Central Toronto is around 105 kilometres from Region of Waterloo International Airport (YKF) and takes roughly 1 hour 15 minutes to get to by car.

  • The journey will take you around 4 hours 5 minutes using public transport.

  • Stay at a hotel close to YKF and go from the runway to resting in a snap. Whether you're arriving on a late ONT to Toronto flight or just want to simplify your travel plans, these stays offer a quick route to a good night's sleep:

  • Take the guesswork out of the next part of your journey by picking up a Region of Waterloo International Airport rental car. Avis, Enterprise and Budget are some companies you can book with.

  • If you're looking for a specific make or model, booking early increases your chances of finding what you want. Reserve your ride from YKF at least a couple of weeks ahead of your flight from Ontario International Airport to Toronto.

Best time to go to Toronto

  • Before you book your flights from Ontario International Airport to Toronto, consider which time of year is best for you. Peak season in Toronto offers a lively atmosphere and plenty of things to do, while low season means you'll get cheaper hotel rates and fewer crowds.

  • Book an Ontario International Airport to Toronto flight ticket with a departure in July if you want to experience the city during its warmest month. Expect temperatures to range from 14ºC (57ºF) to 28ºC (82ºF).

  • Search for cheap tickets from ONT to Toronto in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -12ºC (10ºF) and 1ºC (34ºF) on average.

More about Toronto

  • When it comes to looking for somewhere to rest your head, you'll find the best places to stay in Toronto right here. Explore these options as soon as you've booked your flight from Ontario International Airport to Toronto:

  • Royal Ontario Museum and CN Tower are a couple of big attractions to put on your Toronto to-do list. Continue your sightseeing adventures at Go Tours Canada - Distillery District.

Explore more of Canada

  • Montreal is just one of the many cities in Canada waiting to be discovered after you've seen Toronto. Around 499 kilometres away to the north-east, top sights here include Mount Royal Park, Montreal Botanical Garden and Saint Joseph's Oratory of Mount Royal.

  • Ottawa is another essential stop in Canada and is around 354 kilometres north-east of Toronto. No journey is complete without experiencing Parliament Hill, Rideau Canal and National Gallery of Canada.

Plan the rest of your trip from Ontario to Toronto

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.