$177 Find cheap flights from Montreal to Ontario

In the last 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario was $177 for a one-way ticket and $297 for a round-trip.

Yes, you’ll need a passport to travel to Ontario from Montreal.

We unfortunately don’t have that data for this specific route.

Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Montreal and Ontario, with Star Alliance being the most commonly used for this route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Montreal to Ontario.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Montreal is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Montreal with another airline. Booking your flights between Montreal and ONT can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Montreal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.