Cheap flights from Illinois to Canada from $90

If you aren’t able to travel during the month of September, then book flights to Canada from Illinois during July instead. Flights to Canada in July, while not as cheap as those in September, still average around $239.

Our data shows that Thursday is the least expensive day to fly to Canada. Tickets to fly out on this day can be as low as $456. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Canada for around $723.

In the evening is the cheapest time of day to fly from Illinois to Canada when you can find flight prices for as low as $413. Flying to Canada in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Canada is in the afternoon when prices are around $734.

Fly from Chicago O'Hare Intl to Calgary for the best Illinois - Canada flight prices

You are more likely to see cheaper flights to Canada from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Canada for around $293 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Canada from Illinois for as low as $144 on momondo.

There are 4 cabin classes available to choose from on Illinois to Canada flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Lufthansa, Delta, and Porter Airlines are the most popular carriers operating from Illinois to Canada

United Airlines, Air Canada and American Airlines are the top three most popular airlines that fly to Canada from Illinois according to our data. United Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Canada. Keep in mind that there are 8 different airlines that fly to Canada on a routine basis, so you have a few additional options to choose from.

As of March 2026, there are 91 flights per day flying from Illinois to Canada. The most common time of day flights depart is 6:00PM, with 43% of flights taking off at noon.

As of March 2026, there are 639 flights per week flying from Illinois to Canada. The most common day of the week flights depart is Fri, with 15% of flights taking off on this day.