Cheap flights from Illinois to Switzerland from $253

The cheapest month to fly to Switzerland from Illinois is in January. Flight prices, which tend to average around $650, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Switzerland from Illinois during April instead. Flights to Switzerland in April, while not as cheap as those in January, still average around $656.

On average, the least expensive day to fly to Switzerland from Illinois is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $935. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,072. These prices are subject to change though, so be sure to set up a Price Alert for flights to Switzerland.

Our data shows that the cheapest Illinois to Switzerland flights are usually those with departure times in the afternoon. Our users have found flights to Switzerland in the afternoon for as low as $884. Try not to purchase tickets in the evening because they tend to be around $1,035. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Chicago O'Hare Intl to Zurich for the best Illinois - Switzerland flight prices

You are more likely to see cheaper flights to Switzerland from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Switzerland for around $892 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Switzerland from Illinois for as low as $871 on momondo.

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

United Airlines, Delta, and Aer Lingus are the most popular carriers operating from Illinois to Switzerland

SWISS, Scandinavian Airlines and United Airlines are the top three most popular airlines that fly to Switzerland from Illinois according to our data. SWISS is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Switzerland. Keep in mind that there are 13 different airlines that fly to Switzerland on a routine basis, so you have a few additional options to choose from.

As of September 2026, there are 7 flights per day flying from Illinois to Switzerland. The most common time of day flights depart is 3:00PM, with 83% of flights taking off in the afternoon.

As of September 2026, there are 54 flights per week flying from Illinois to Switzerland. The most common day of the week flights depart is Fri, with 17% of flights taking off on this day.