Cheap flights from Ottawa to Montreal from C$ 135

The cheapest month to fly to Montreal from Ottawa is in June. Flight prices, which tend to average around C$ 0, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of June, then book flights to Montreal from Ottawa during February instead. Flights to Montreal in February, while not as cheap as those in June, still average around C$ 0.

Our data shows that Friday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 1,073. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Ottawa to Montreal for around C$ 1,197.

Our data shows that the cheapest Ottawa to Montreal flights are usually those with departure times in the morning. Our users have found flights to Montreal in the morning for as low as C$ 1,025. Flights in the afternoon are often more expensive with an average ticket price of C$ 1,198.

Fly from Ottawa to Montreal Pierre Elliott Trudeau Intl for the best Ottawa - Montreal flight prices

There are 3 cabin classes available to choose from on Ottawa to Montreal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 21% on your flight if you consider stops on a Ottawa to Montreal flight.

As of August 2026, 14 flights take off from Ottawa and land in Montreal each day. The most common flight departure time for this route is 3:00p.m., with 45% of daily flights taking off in the afternoon.

As of August 2026, 103 flights take off from Ottawa and land in Montreal each week. The most common flight departure day for this route is Wed, with 20% of weekly flights taking off on this day.