Cheap flights from Illinois to Copenhagen from $231

The cheapest month to fly to Copenhagen from Illinois is in February. Flight prices, which tend to average around $515, are often lower during this time because this is during the off-season. If you aren’t able to travel to Copenhagen 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 $565.

The cheapest day to depart from Illinois to Copenhagen is on a Wednesday when prices can be found for as low as $697. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Copenhagen for around $763.

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

You are more likely to see cheaper flights to Copenhagen from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Copenhagen for around $747 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Copenhagen from Illinois for as low as $635 on momondo.

There are 3 cabin classes available to choose from on Illinois to Copenhagen 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 48% on your flight if you consider stops on a Illinois to Copenhagen flight.

Icelandair and Delta are the most popular carriers operating from Illinois to Kastrup Copenhagen

Scandinavian Airlines, Icelandair and United Airlines are the top three most popular airlines that fly to Copenhagen from Illinois according to our data. Scandinavian Airlines is the first choice among our users, with 66% of people opting to fly with this airline when traveling to Copenhagen. Keep in mind that there are 8 different airlines that fly to Copenhagen on a routine basis, so you have a few additional options to choose from.

As of October 2026, 2 flights take off from Illinois and land in Copenhagen 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 October 2026, there are 19 flights per week flying from Illinois to Copenhagen. The most common day of the week flights depart is Wed, with 16% of flights taking off on this day.