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

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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.$489 per passenger.Departing Tue, 17 Jun, returning Tue, 24 Jun.Return flight with Frontier Airlines and WestJet.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Tue, 17 Jun, arriving in Toronto Pearson International.Inbound indirect flight with WestJet, departs from Toronto Pearson International on Tue, 24 Jun, arriving in Ontario International.Price includes taxes and charges.From $489, select.
Toronto.$625 per passenger.Departing Tue, 16 Sep, returning Tue, 23 Sep.Return flight with Frontier Airlines and Porter Airlines (Canada) Ltd.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Tue, 16 Sep, arriving in Toronto Pearson International.Inbound indirect flight with Porter Airlines (Canada) Ltd, departs from Toronto Pearson International on Tue, 23 Sep, arriving in Ontario International.Price includes taxes and charges.From $625, select.
Toronto.$861 per passenger.Departing Sun, 25 May, returning Tue, 3 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Sun, 25 May, arriving in Toronto Pearson International.Inbound indirect flight with Delta, departs from Toronto Pearson International on Tue, 3 Jun, arriving in Ontario International.Price includes taxes and charges.From $861, select.
Toronto.$1,173 per passenger.Departing Tue, 19 Aug, returning Tue, 2 Sep.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Tue, 19 Aug, arriving in Toronto Pearson International.Inbound indirect flight with United, departs from Toronto Pearson International on Tue, 2 Sep, arriving in Ontario International.Price includes taxes and charges.From $1,173, select.
Toronto.$1,177 per passenger.Departing Sat, 17 May, returning Mon, 19 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Sat, 17 May, arriving in Toronto Pearson International.Inbound indirect flight with Delta, departs from Toronto Pearson International on Mon, 19 May, arriving in Ontario International.Price includes taxes and charges.From $1,177, select.
Toronto.$1,180 per passenger.Departing Mon, 28 Jul, returning Tue, 5 Aug.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ontario International on Mon, 28 Jul, arriving in Toronto Pearson International.Inbound indirect flight with WestJet, departs from Toronto Pearson International on Tue, 5 Aug, arriving in Ontario International.Price includes taxes and charges.From $1,180, select.
Toronto.$1,185 per passenger.Departing Tue, 24 Jun, returning Wed, 2 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Tue, 24 Jun, arriving in Toronto Pearson International.Inbound indirect flight with Delta, departs from Toronto Pearson International on Wed, 2 Jul, arriving in Ontario International.Price includes taxes and charges.From $1,185, select.
Toronto.$1,286 per passenger.Departing Thu, 24 Jul, returning Mon, 28 Jul.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Thu, 24 Jul, arriving in Toronto Pearson International.Inbound indirect flight with United, departs from Toronto Pearson International on Mon, 28 Jul, arriving in Ontario International.Price includes taxes and charges.From $1,286, select.

Find the cheapest month to fly from Ontario International to Toronto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Toronto flights are currently cheapest in June.
May
from $1,177
Jun
from $489
Jul
from $1,286
Aug
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Sep
from $625
Oct
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Nov
from $1,327
Dec
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Jan
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Feb
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Mar
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Apr
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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$489
Cheapest month to flyJune

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 $489. 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 $489.
As of May 2025, there are no flights flying from Ontario International to Toronto.
The cheapest month to fly from Ontario International to Toronto is usually May 2025.
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 $489.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Toronto on Tuesday, 17 June 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 May, the average temperature is usually around 12°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. Operating on the UTC-4 timezone, Toronto is 3 hours ahead of Ontario.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to board your flight from ONT to Toronto.

  • Peak months like August or holiday periods such as summer and spring break will mean longer waits at check-in and security. Travelling then? Play it safe and head to the airport even earlier. Arriving two hours before domestic flights and up four hours ahead of an international flight is a smart move.

  • A stopover is the perfect opportunity to take a travel break — and possibly even explore a different city. When searching for flights from ONT to Toronto, uncheck the 'Direct flights only' box to see where you can visit along the way. Here are some options to consider:

    • Denver International Airport (DEN)

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

    • Nashville International Airport (BNA)

  • You won't need a visa for Canada if you hold a passport from United States and are visiting for tourism purposes. Visa and travel documentation requirements are subject to changes. So before reserving your cheap tickets from Ontario International Airport to Toronto, check with your airline and your destination country's local embassy or consulate for the latest information.

  • Located around 6 kilometres from central Ontario, ONT can be reached in about 10 minutes by car (depending on traffic). The journey on public transport takes roughly 1 hour and 28 minutes.

  • Catching an early flight from Ontario International Airport to Toronto? Avoid the last-minute rush to the airport (and catch some extra z's) by choosing one of these hotels close to ONT:

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

  • The best price we've seen for a one-way ticket from Ontario International Airport to Toronto is $194. The cheapest price for a return flight is $489. Keep in mind fares may change due to availability at the time of booking.

  • Don't leave things to the last minute. You're more likely to get cheap tickets from ONT to Toronto if you book early. Airlines often have some great early bird discounts.

  • The 'Whole month' search function shows you the cheapest tickets from Ontario International Airport to Toronto throughout the month. It's a good way to snap up a bargain if your dates are flexible.

  • Sign into your online account or use the app to create a Price Alert. We'll let you know straight away if there's a better deal on this route. It's easy to do, and it'll save you the hassle of checking for flight tickets from ONT to Toronto every day.

  • Make the most of the filters to find your ideal journey. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Ontario International Airport to Toronto, use the 'Sort by' tool. You can also filter results by arrival and departure times, airline, and journey duration.

Airports in Toronto

Pearson International Airport (YYZ)

  • Pearson International Airport (YYZ) is around 27 kilometres from the centre of Toronto. With your own car rental or if you're catching a cab, the drive is about 26 minutes.

  • It'll take around 49 minutes when travelling by public transport.

  • The last thing you need is a lengthy journey to your hotel if you're arriving on a late flight from Ontario International Airport to Toronto. Stay at one of these accommodation options near YYZ instead:

Billy Bishop Toronto City Airport (YTZ)

  • After your flight from Ontario International Airport to Toronto has touched down, you can make your way to the city centre in about 35 minutes by car. Central Toronto is roughly 3 kilometres from Billy Bishop Toronto City Airport (YTZ).

  • The trip will take about 39 minutes on public transport.

  • There are some great places ready to welcome you near YTZ. Unwind and get cosy after your flight from ONT to Toronto at one of these perfectly located options:

Best time to go to Toronto

  • August is the busiest month for flights from Ontario International Airport to Toronto. To avoid the crowds, travel to Toronto in February when things are quieter.

  • The warmest month in Toronto is July, with the temperature ranging between 14ºC and 28ºC. Lock in your flights from Ontario International Airport to Toronto in this month if this is the type of weather you enjoy.

  • If you want cooler conditions, search for a cheap flight from ONT to Toronto in January when temperatures average between -12ºC and 1ºC.

More about Toronto

Complete your Toronto trip with a car rental

  • Finding you a cheap flight from Ontario International Airport to Toronto isn't the only trick up our sleeve. Check out our car rentals in Toronto and travel at your own pace. We search for deals from trusted car rental companies and put them all in one place. Instantly compare offers and then book with no fees.

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.