Cheap flights from Paris to Illinois from C$ 659

In general, February is the cheapest month to fly from Paris to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 896. If you don’t want to visit Illinois in February, then you should wait until January to fly from Paris, when ticket prices are also cheap, with an average price of C$ 917.

According to our data, Monday is the cheapest day to fly to Illinois from Paris. The lowest ticket price found for a Monday departure recently was C$ 651. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Illinois is Wednesday, with ticket prices averaging around C$ 2,467.

Fly from Paris Charles de Gaulle to Chicago O'Hare Intl for the best Paris - Illinois flight prices

You are more likely to see cheaper flights to Illinois from Paris when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around C$ 1,176 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Paris for as low as C$ 847 on momondo.

There are 2 cabin classes available to choose from on Paris to Illinois 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 79% on your flight if you consider stops on a Paris to Illinois flight.

As of November 2026, 4 flights take off from Paris and land in Illinois each day. The most common flight departure time for this route is 11:00a.m., with 75% of daily flights taking off at noon.

As of November 2026, 32 flights take off from Paris and land in Illinois each week. The most common flight departure day for this route is Fri, with 50% of weekly flights taking off on this day.