For travel to Canada in 2026, the cheapest months to fly are typically January, February, and November. This is the "off-peak" winter season when tourism demand is at its lowest due to the cold weather, excluding the busy Christmas and New Year period. During these months, you can often find round-trip flights from the U.S. or Europe for 30% to 40% less than the peak summer prices in July and August. Specifically, February is a great time to find deals to major cities like Toronto, Montreal, and Vancouver if you are interested in winter sports or urban exploration. If you prefer milder weather, late April and early May (the "shoulder season") also offer very competitive rates before the summer rush begins. Conversely, flying to Canada in July is the most expensive time of year, as local school holidays and prime weather for national parks drive prices to their annual peak. Booking at least 2-3 months in advance for a February trip is the gold standard for securing the lowest possible airfare.