Cheap flights from Brussels Bruxelles-National Airport to Chicago from $340
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Brussels Bruxelles-National Airport to Chicago departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Brussels Bruxelles-National Airport to Chicago
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Chicago?
The month of February is, on average, the cheapest month to fly to Chicago from Brussels Bruxelles-National Airport, with most prices found around $527. If you’re not able to fly to Chicago in February, then November is your next best option. Flight prices from Brussels Bruxelles-National Airport to Chicago during November average around $590.
What is the cheapest day to depart on your flight to Chicago?
The cheapest day to depart on your flight to Chicago is on a Friday when prices can be found for as low as $748. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Brussels Bruxelles-National Airport to Chicago for around $828.
What is the cheapest time of day to depart on your flight to Chicago?
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.
What is the cheapest Brussels Bruxelles-National to Chicago flight route?
Fly from Brussels Bruxelles-National to Chicago O'Hare Intl for the best Brussels Bruxelles-National - Chicago flight prices
How far in advance should I book a flight to Chicago?
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 $684 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 $577 on momondo.
What cabin class options are available on Brussels Bruxelles-National to Chicago flights?
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.
Can stopping save me money on Brussels Bruxelles-National Airport to Chicago flights?
You could potentially save up to 11% on your flight if you consider stops on a Brussels Bruxelles-National Airport to Chicago flight.
How have Brussels Bruxelles-National Airport to Chicago flight prices changed over time?
As of June 2025, prices for Brussels Bruxelles-National Airport to Chicago flights are approximately 20% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Brussels Bruxelles-National to Chicago?
LOT, Scandinavian Airlines, and ITA Airways are the most popular carriers operating from Brussels Bruxelles-National to Chicago
What airlines fly to Chicago?
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 56% 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.
How many flights depart from Brussels Bruxelles-National Airport to Chicago on average per day?
6 flights are operational daily from Brussels Bruxelles-National Airport to Chicago as of June 2025. The most popular departure time for this route is 10:00AM, with 100% of flights per day taking off at noon.
How many flights depart from Brussels Bruxelles-National Airport to Chicago on average per week?
42 flights are operational weekly from Brussels Bruxelles-National Airport to Chicago as of June 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
When to book flights from Brussels Bruxelles-National Airport to Chicago
Cheap Brussels Bruxelles-National Airport to Chicago (BRU to CHI) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Brussels Bruxelles-National Airport to Chicago
How far is Brussels Bruxelles-National to Chicago by plane?
There are 4139.4 mi between Brussels Bruxelles-National and Chicago. Flights usually cover this in 12h 10m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Brussels Bruxelles-National Airport to Chicago?
Prices for flights from Brussels Bruxelles-National Airport to Chicago are updated daily.
How many operators does momondo search for flights from Brussels Bruxelles-National Airport to Chicago?
As of June 2025, there are 3 operators available to choose from for flights from Brussels Bruxelles-National Airport to Chicago.
How old do you have to be to fly from Brussels Bruxelles-National Airport to Chicago?
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.
What documentation or ID do you need to fly to Chicago?
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.
What is the most popular plane model from Brussels Bruxelles-National Airport to Chicago?
Based on momondo bookings for flights between Brussels Bruxelles-National Airport and Chicago, the leading plane model is Boeing 787 Dreamliner, making up 39.48% of the total bookings. Other popular models include Boeing 787-10 Dreamliner with 39.30%, Airbus A330-300 with 2.34%, and Boeing 777-200/200ER with 2.16%.
What is the most popular airline from Brussels Bruxelles-National Airport to Chicago?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Brussels Bruxelles-National Airport to Chicago is United Airlines (30% of total bookings). The next most popular airlines are Brussels Airlines (21%), Aer Lingus (16%), and Lufthansa (14%).
Best airlines flying from Brussels Bruxelles-National Airport to Chicago
Compare and see reviews for airlines that fly from Brussels Bruxelles-National Airport to Chicago with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $576 | Free Cancellation | Rating 7.4 8,852 reviews | |||
| PriceFrom $579 | Free Cancellation | Rating 6.8 7,200 reviews | |||
| PriceFrom $592 | Free Cancellation | Rating 7.3 352 reviews |
United Airlines Flights From Brussels Bruxelles-National Airport to Chicago
United Airlines flight deals from Brussels Bruxelles-National Airport to Chicago start from $576 round-trip. Over the 7 United Airlines flights for this route in a normal week, average airfare is usually $705 round-trip - but some users have found much cheaper deals with momondo.
Brussels Airlines Flights From Brussels Bruxelles-National Airport to Chicago
Another popular option for Brussels Bruxelles-National Airport to Chicago flights is Brussels Airlines (7.3/10, 352 ratings). Brussels Airlines flies from Brussels Bruxelles-National Airport to Chicago around 7 times per week, with deals starting from $592 round-trip and rising to an average price of around $771.
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Why should I use momondo to find a flight deal from Brussels to Chicago?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Brussels to Chicago. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Brussels to Chicago with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Chicago from Brussels with this policy.
How can momondo help me find flights from Brussels to Chicago?
Once all potential Brussels to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Brussels to Chicago right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Brussels to Chicago flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.