Cheap flights from Illinois to Denmark from $266

In general, February is the cheapest month to fly from Illinois to Denmark. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $515. If you aren’t able to travel to Denmark during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $559.

The cheapest day to depart from Illinois to Denmark is on a Wednesday. Travelers who choose to depart for Denmark on a Wednesday will often find tickets for as low as $670. On the other hand, Tuesday 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 $747.

Fly from Chicago O'Hare Intl to Kastrup Copenhagen for the best Illinois - Denmark flight prices

You are more likely to see cheaper flights to Denmark from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Denmark for around $722 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denmark from Illinois for as low as $606 on momondo.

There are 3 cabin classes available to choose from on Illinois to Denmark 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 45% on your flight if you consider stops on a Illinois to Denmark flight.

TAP AIR PORTUGAL, Icelandair, and Air Canada are the most popular carriers operating from Illinois to Denmark

Scandinavian Airlines, Icelandair and United Airlines are the top three most popular airlines that fly to Denmark from Illinois according to our data. Scandinavian Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Denmark. Keep in mind that there are 8 different airlines that fly to Denmark on a routine basis, so you have a few additional options to choose from.

As of August 2026, 3 flights take off from Illinois and land in Denmark each day. The most common flight departure time for this route is 7:00PM, with 100% of daily flights taking off in the evening.

As of August 2026, there are 21 flights per week flying from Illinois to Denmark. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.