Cheap flights from Illinois to Frankfurt am Main from $333

In general, February is the cheapest month to fly from Illinois to Frankfurt am Main. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $555. If you’re not able to fly to Frankfurt am Main in February, then January is your next best option. Flight prices from Illinois to Frankfurt am Main during January average around $696.

The cheapest day to depart on your flight to Frankfurt am Main is on a Tuesday when prices can be found for as low as $994. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,103.

Flying to Frankfurt am Main from Illinois in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,020 when looking at flights departing in the evening. Flights to Frankfurt am Main are more costly at noon, with an average ticket price of $1,083. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Chicago O'Hare Intl to Frankfurt am Main for the best Illinois - Frankfurt am Main flight prices

You are more likely to see cheaper flights to Frankfurt am Main from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Frankfurt am Main for around $934 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Frankfurt am Main from Illinois for as low as $823 on momondo.

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

KLM, Delta, and Air France are the most popular carriers operating from Illinois to Frankfurt am Main

Scandinavian Airlines, Lufthansa and Icelandair are the top three most popular airlines that fly to Frankfurt am Main from Illinois according to our data. Scandinavian Airlines is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Frankfurt am Main. Keep in mind that there are 9 different airlines that fly to Frankfurt am Main on a routine basis, so you have a few additional options to choose from.

The number of flights available between Illinois and Frankfurt am Main is 11 per day as of November 2026. The most frequent departure time is 4:00PM, with 62% of daily flights leaving in the afternoon.

As of November 2026, there are 79 flights per week flying from Illinois to Frankfurt am Main. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.