Cheap flights from Paris Charles de Gaulle Airport to Illinois from $456

The cheapest month to fly to Illinois from Paris Charles de Gaulle Airport is in February. Flight prices, which tend to average around $628, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $678.

The cheapest day to depart from Paris Charles de Gaulle Airport to Illinois is on a Thursday when prices can be found for as low as $811. Flights from Paris Charles de Gaulle Airport to Illinois on a Sunday will generally be more expensive and average around $1,136. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Illinois is at noon. Flights from Paris Charles de Gaulle Airport to Illinois during this time can be as low as $836. Flights in the morning are often more expensive with an average ticket price of $993.

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

You are more likely to see cheaper flights to Illinois from Paris Charles de Gaulle Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $830 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Paris Charles de Gaulle Airport for as low as $606 on momondo.

There are 3 cabin classes available to choose from on Paris Charles de Gaulle Airport to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Finnair, British Airways, and Air Serbia are the most popular carriers operating from Paris Charles de Gaulle to Illinois

United Airlines, Lufthansa and Air France are the top three most popular airlines that fly to Illinois from Paris Charles de Gaulle Airport according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

The number of flights available between Paris Charles de Gaulle Airport and Illinois is 8 per day as of October 2026. The most frequent departure time is 2:00PM, with 64% of daily flights leaving in the afternoon.

The number of flights available between Paris Charles de Gaulle Airport and Illinois is 57 per week as of October 2026. The most frequent departure day is Thu, with 28% of weekly flights leaving on this day.