C$ 201 Find Cheap Flights from Chicago to Montreal – Compare and Save

If you are looking for a flight deal from Chicago to Montreal, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Montreal, Thursday is the cheapest day to fly and Sunday is the most expensive.

The cheapest month for flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport is February, where tickets cost C$ 352 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is C$ 655 and C$ 640 respectively.

No, with an average price for the route of C$ 270, prices are generally cheapest when you fly direct.

To get a below average price on the flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, you should book around 4 weeks before departure, which saves you about 58% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

In the past 5 days, the cheapest round-trip tickets from Chicago to Montreal were found on Porter Airlines (C$ 429) and Air Canada (C$ 436).

Air Canada connects Chicago to Montreal with 21 flights per week. United Airlines also offers 21 flights per week, while American Airlines follows with 14 flights per week.

Weekly flights between Chicago and Montreal historically see delays in approximately 20% of cases, with the average delay over the past year being 141 minutes.

Typically, flights leaving in the morning tend to face fewer delays, whereas flights at night have historically encountered delays more often.

Statistically, Thursday is the day of the week with the fewest delays on this flight route, while Sunday has typically experienced more delays than other days.

Based on our data, American Airlines have experienced the fewest delays on this route in the past 12 months, with only about 13% of their flights encountering any delays.

There are 2 cabin class options for the route. These are Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are 8 nonstop flights that take off from Chicago O'Hare Intl Airport and land in Montreal Pierre Elliott Trudeau Intl Airport, with an average flight time of 2h 24m. The most common departure time is 5:00 p.m. and most flights take off in the afternoon. Each week, there are 56 flights and there are the same amount of flights each day (8).