Cheap flights from Belgium to Chicago from $325

The month of September is, on average, the cheapest month to fly to Chicago from Belgium, with most prices found around $559. If you’re not able to fly to Chicago in September, then November is your next best option. Flight prices from Belgium to Chicago during November average around $559.

The cheapest day to depart on your flight to Chicago is on a Thursday when prices can be found for as low as $740. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Belgium to Chicago for around $846.

Fly from Brussels Bruxelles-National to Chicago O'Hare Intl for the best Belgium - Chicago flight prices

You are more likely to see cheaper flights to Chicago from Belgium when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $688 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Belgium for as low as $586 on momondo.

There are 3 cabin classes available to choose from on Belgium to Chicago 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 14% on your flight if you consider stops on a Belgium to Chicago flight.

Historically, on average around 14% of flights between Belgium and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 166 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Air Antilles have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

6 flights are operational daily from Belgium to Chicago as of February 2026. The most popular departure time for this route is 10:00AM, with 100% of flights per day taking off at noon.

As of February 2026, there are 42 flights per week flying from Belgium to Chicago. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.