Cheap flights from Paris to Illinois from $442

The cheapest month to fly to Illinois from Paris is in February. Flight prices, which tend to average around $625, 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 $659.

The cheapest day to depart from Paris to Illinois is on a Thursday when prices can be found for as low as $778. Flights from Paris to Illinois on a Monday will generally be more expensive and average around $1,033. 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 to Illinois during this time can be as low as $850. Flights in the morning are often more expensive with an average ticket price of $917.

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 $832 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 $722 on momondo.

There are 3 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.

British Airways, Aer Lingus, and Delta are the most popular carriers operating from Paris to Illinois

United Airlines, Lufthansa and Air France are the top three most popular airlines that fly to Illinois from Paris according to our data. United Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 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 and Illinois is 18 per day as of September 2026. The most frequent departure time is 2:00PM, with 65% of daily flights leaving in the afternoon.

As of September 2026, 126 flights take off from Paris and land in Illinois each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.