Flight Deals from Chicago to Montreal Mirabel Airport
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Yearly Good Deal Price
Fly from Chicago to Montreal in late August to mid-October for lower fares, while early June sees peak prices.
When planning your flights from Chicago to Montreal, be aware that you can expect higher prices during the peak travel times of late spring, particularly around early June, where prices can reach up to mid-$500s. The mid-summer months also see elevated prices. Conversely, late summer into early fall, especially from late August to mid-October, tends to offer more affordable fares, frequently dipping under $410. Notably, early April presents some of the lowest prices, making it a great time to fly, while you can expect a sharp price increase at the start of June.
Best Time to Book
For flights from Chicago to Montreal, book 52 to 66 days in advance to secure the lowest prices, avoiding last-minute bookings.
If you're planning to travel from Chicago to Montreal, the best time to buy your flight tickets is between 52 to 66 days before departure, where prices hover around $390. While prices remain similar in that range, waiting until less than 48 days before departure can lead to significant price increases, reaching up to $644 within the final 19 days. Avoid booking closer to your departure date to prevent paying substantially more than necessary.