Question 1

Which airport is the most popular layover for flights between Brussels Bruxelles-National Airport and Chicago?

Accepted Answer

London (LHR) was the most common stop: 27% of momondo users choosing 1-stop flights on this route connected there.

Question 2

Which layover airport has the shortest connection time from Brussels Bruxelles-National Airport to Chicago?

Accepted Answer

Reykjavik (KEF) has the shortest average layover time for this route: 1h 03m.

Question 3

Which layover airport has the shortest travel time from Brussels Bruxelles-National Airport to Chicago?

Accepted Answer

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 11h 25m.

Question 4

How far in advance should I book a flight to Chicago?

Accepted Answer

You are more likely to see cheaper flights to Chicago from Brussels Bruxelles-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $654 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Brussels Bruxelles-National Airport for as low as $597 on momondo.

Question 5

What is the cheapest day to depart on your flight to Chicago?

Accepted Answer

The cheapest day to depart on your flight to Chicago is on a Thursday when prices can be found for as low as $728. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Brussels Bruxelles-National Airport to Chicago for around $800.

Question 6

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

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.

Question 7

What airlines fly to Chicago?

Accepted Answer

United Airlines, Lufthansa and Brussels Airlines are the top three most popular airlines that fly to Chicago from Brussels Bruxelles-National Airport according to our data. United Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 3 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

Question 8

What is the cheapest time of day to depart on your flight to Chicago?

Accepted Answer

Our most recent data shows that the best time of day to fly to Chicago is in the afternoon. Flights from Brussels Bruxelles-National Airport to Chicago during this time can be as low as $583. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $800.

Question 9

How often are flights from Brussels to Chicago delayed?

Accepted Answer

Historically, on average around 13% of flights between Brussels and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 168 minutes.

Question 10

Can stopping save me money on Brussels Bruxelles-National Airport to Chicago flights?

Accepted Answer

You could potentially save up to 15% on your flight if you consider stops on a Brussels Bruxelles-National Airport to Chicago flight.

Question 11

What is the most punctual flight time for Brussels to Chicago flights?

Accepted Answer

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Question 12

What is the cheapest airline that flies from Brussels Bruxelles-National to Chicago?

Accepted Answer

British Airways is the most popular carrier operating from Brussels Bruxelles-National to Chicago

Question 13

What is the cheapest month to fly to Chicago?

Accepted Answer

The month of February is, on average, the cheapest month to fly to Chicago from Brussels Bruxelles-National Airport, with most prices found around $528. If you’re not able to fly to Chicago in February, then September is your next best option. Flight prices from Brussels Bruxelles-National Airport to Chicago during September average around $536.

Question 14

What is the cheapest Brussels Bruxelles-National to Chicago flight route?

Accepted Answer

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

Question 15

How many flights depart from Brussels Bruxelles-National Airport to Chicago on average per day?

Accepted Answer

6 flights are operational daily from Brussels Bruxelles-National Airport to Chicago as of November 2025. The most popular departure time for this route is 10:00AM, with 100% of flights per day taking off at noon.

Question 16

What is the typical price of a round-trip flight between Brussels Bruxelles-National Airport and Chicago?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from $580 to $766.
The lowest price recently found on this route was $471.

Question 17

What cabin class options are available on Brussels Bruxelles-National to Chicago flights?

Accepted Answer

There are 3 cabin classes available to choose from on Brussels Bruxelles-National to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 18

How many flights depart from Brussels Bruxelles-National Airport to Chicago on average per week?

Accepted Answer

42 flights are operational weekly from Brussels Bruxelles-National Airport to Chicago as of November 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

Question 19

How have Brussels Bruxelles-National Airport to Chicago flight prices changed over time?

Accepted Answer

As of November 2025, prices for Brussels Bruxelles-National Airport to Chicago flights are approximately 14% more expensive when compared to flights at the same time last year.

Question 20

Which airline has the best punctuality record on Brussels to Chicago flights?

Accepted Answer

According to our data, CM Airlines have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

Question 21

Which layover airport offers the lowest fares from Brussels Bruxelles-National Airport to Chicago?

Accepted Answer

Flights via Dublin (DUB) offer the lowest average round-trip price of $478.

Question 22

When did momondo last update prices for flights from Brussels Bruxelles-National Airport to Chicago?

Accepted Answer

Prices for flights from Brussels Bruxelles-National Airport to Chicago are updated daily.

Question 23

How many operators does momondo search for flights from Brussels Bruxelles-National Airport to Chicago?

Accepted Answer

As of November 2025, there are 3 operators available to choose from for flights from Brussels Bruxelles-National Airport to Chicago.

Question 24

How old do you have to be to fly from Brussels Bruxelles-National Airport to Chicago?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Brussels Bruxelles-National Airport to Chicago.

Question 25

What documentation or ID do you need to fly to Chicago?

Accepted Answer

The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best Price Found	$754
Fastest flight time	8h 45m
Direct flights	Every day
Airports in Chicago	1 airport

Airline	Rating	Free Cancellation	Price
Brussels Airlines	PriceFrom $521	Free Cancellation	Rating 7.2 370 reviews	Search Brussels Airlines flights
Lufthansa	PriceFrom $521	Free Cancellation	Rating 6.8 7,594 reviews	Search Lufthansa flights
United Airlines	PriceFrom $568	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights

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