$407 Find Cheap Flights from Brussels to Illinois - Compare and Save

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Price, demand and travel trends for Brussels Bruxelles-National Airport to Illinois flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Brussels Bruxelles-National Airport to Illinois recently?

The cheapest fare from Brussels Bruxelles-National Airport to Illinois in the last week was $565 round-trip, to Chicago O'Hare Intl (ORD).

How do fares into airports in Illinois compare?

Flights from Brussels Bruxelles-National Airport to Illinois arrive at a single airport, Chicago O'Hare Intl (ORD). Round-trip fares average about $828.

Are flights from Brussels Bruxelles-National Airport to Illinois cheaper or more expensive than last year?

Fares from Brussels Bruxelles-National Airport to Illinois are about 35% higher than they were in November last year, averaging $820 round-trip.

What's the cheapest month to fly from Brussels Bruxelles-National Airport to Illinois?

April is typically the cheapest month to fly from Brussels Bruxelles-National Airport to Illinois, with round-trip fares averaging $729. August and December are usually the most expensive, averaging $931 and $881, respectively.

How do fares from Brussels Bruxelles-National Airport to Illinois vary by day of the week?

On average, Friday is the cheapest day to fly from Brussels Bruxelles-National Airport to Illinois and Sunday is the most expensive. Looking at the past 12 months of KAYAK data, it's 8% more expensive to fly on a Sunday compared to Friday.

What's the best time of day to fly from Brussels Bruxelles-National Airport to Illinois?

It's cheapest to fly to Illinois in the afternoon with average prices of $785. The night is the most expensive time to fly, with average prices of $891.

What's the best time to book a flight from Brussels Bruxelles-National Airport to Illinois?

Book your flights 14 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 38% compared to booking at the last minute (within 2 weeks of departure).

Key details for Brussels Bruxelles-National Airport to Illinois flights

Low season

November

Cheapest flight

$391
Beat the crowds with an average 37% drop in travelers.
The most popular month to fly with an average 82% increase in travelers.
One-way flight from Brussels Bruxelles-National Airport to Chicago O'Hare Intl Airport

Your Brussels Bruxelles-National Airport to Illinois flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Brussels Bruxelles-National Airport to Illinois?

    Yes. Fares from Brussels Bruxelles-National Airport to Illinois are low right now. As a rule of thumb, a round-trip under $757 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Brussels Bruxelles-National Airport to Illinois?

    Over the past 12 months, round-trip fares from Brussels Bruxelles-National Airport to Illinois have typically cost between $757 and $995.

  • What are the main airports serving Illinois?

    Illinois has 17 airports. 100% of KAYAK users choose Chicago O'Hare Intl (ORD) as their arrival airport.

  • Which airlines fly nonstop from Brussels Bruxelles-National Airport to Illinois?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from Brussels Bruxelles-National Airport to Illinois: United Airlines.

  • Which destinations in Illinois can I fly nonstop from Brussels Bruxelles-National Airport?

    Based on the flight schedule for the next 3 months, you can fly nonstop from Brussels Bruxelles-National Airport to just one destination in Illinois: Chicago.

  • Is it cheaper to fly with a layover from Brussels Bruxelles-National Airport to Illinois?

    Yes, nonstop flights from Brussels Bruxelles-National Airport to Illinois average $859 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Lisbon Humberto Delgado (LIS) (avg. price $582)
    • Kastrup Copenhagen (CPH) (avg. price $588)
    • Montreal Pierre Elliott Trudeau Intl (YUL) (avg. price $699)

  • How long is a flight from Brussels Bruxelles-National Airport to Illinois?

    Nonstop flights from Brussels Bruxelles-National Airport to Illinois take 9h on average. All flights fly into Chicago O'Hare Intl (ORD).

  • Which cabin classes are available from Brussels Bruxelles-National Airport to Illinois?

    On flights from Brussels Bruxelles-National Airport to Illinois you can book Economy Class, Premium Economy Class or Business Class.

  • What are some popular landmarks around Illinois?

    Illinois is home to many popular sights. KAYAK travelers' favorites include:

    • Magnificent Mile
    • Grant Park
    • Soldier Field
    • River North

  • What are the earliest and latest flights from Brussels Bruxelles-National Airport to Illinois?

    The earliest nonstop flight from Brussels Bruxelles-National Airport to Illinois departs at 10:10 am and the latest leaves at 10:10 am. Nonstop flights take about 9h.

Your guide to booking Brussels Bruxelles-National Airport to Illinois flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 14 weeks before your trip. KAYAK data shows fares in this window are around 38% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • Flexible with your dates? Fly in April to save some money. It's typically the cheapest month on this route, while flights in August will cost you the most.
  • Fly out on a Friday to get the cheapest fares. Avoid Sunday flights, which are about 8% more expensive.
  • Start your trip in Chicago, the most popular destination in Illinois. From there, it's easy to continue on to other popular spots such as Rosemont, Schaumburg and Champaign.
  • Whether you're trying to save time or money, Chicago O'Hare Intl (ORD) is usually your best option from Brussels Bruxelles-National Airport.

Reviews of the top 3 airlines serving from Brussels to Illinois

 
Need help choosing which airline to fly with from Brussels to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Scandinavian AirlinesOverall score based on 2030 reviews
6.8Entertainment
7.7Boarding
8.1Crew
6.8Food
7.4Comfort
Airline reviews

Amazing, crew are very friendly and they gave us blanket and sleep aids and plenty of drinks and snacks

10.0 ExcellentKhalil, Nov 2026
Read more Scandinavian Airlines reviews

Amazing, crew are very friendly and they gave us blanket and sleep aids and plenty of drinks and snacks

Didn't care much for the food but maybe that's just because I'm American and the food was very European. Would have liked a second alcoholic beverage service in a 7-8 hour flight. I was offered two wines to have with dinner though and should have accepted both. I didn't realize they would only offer alcohol once. Lights were never turned off in the cabin for sleeping. Flight was delayed several hours with zero explanation from SAS. However, the flight attendants were fantastic. We were traveling with a friend who needed oxygen and they were very attentive and helped him throughout the flight. That was greatly appreciated. The pillows and blankets are great. Gift bags with toothbrush etc so nice! This was our first time traveling Premium so alot of perks we were used to getting! The flight was smooth and I loved watching the planes location on the seat screen and being able to watch movies etc. overall it was great I would definitely recommend SAS to anyone and hope to fly with you again sometime.

Copenhaguen airport is not very efficient, signs are not clear enough. Too much walking.

My daughter always gets sick when we order the gluten free meal option. Internet didn’t work as advertised.

The flight was very cold, and the seats were rather uncomfortable. The food has been better on our other SAS experiences. Most significantly, the luggage with most of my wife's personal items and clothes didn't make the flight. Hoping for a quick resolution, but no real opportunity to speak with a Human has us concerned.

It was so hot on the plane. No air jets above the seats

Please see my comments for the flight from Chicago to Copenhagen

We were sitting in SAS plus. Super friendly, service that went above and beyond on a Full Flight too! Meals were deliscious and trays were cleared promptly. Generous drinks offered throughout the flight. Would like to suggest better movies on offer to watch.... In all genres and maybe more cooking shows? There was only 1, Nadia's Everyday Baking... Thank you

This was my first time flying SAS and used them for 4 flights. The crews, flight and communication was outstanding. I flew premium economy and was extremely impressed by their SAS lounges. I will 100% ise SAS again. Everyone was so pleasant!

little entertainment choices. Seat/bed too firm an no sleeping mat

I had bad experience with United airline. No live rep, they only have AI that respond to customers concern

great starting with the business Class that's was Amazing . thank you United Airlines and brussels Airlines

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Everything works smoothly once I got to Brussels. Flying with United Airlines from Atlanta to Chicago and Leaving Chicago for Brussels was a nightmare though. Slept at the airport in Chicago because my flight got delayed from Atlanta to Chicago. No accommodation provided because united airlines said I had economy ticket.

In general, flight attendants were not very welcoming. Because of delays in departure and luggage handling, we missed our connecting flight. Offered a later flight on standby but available seats were then taken by 4 or 5 airline crew so slept at airport and got home next day. I am a frequent traveler, and this experience was the worst.

The flight was excellent. The crew was great. The food offerings were very good.

Liked the excellent United crew, the food selection, the comfortable cabin and the excellent movie and tv shows selection. The interface on the screen is also excellent and gives the option to let the crew know to wake you up for meals, or not. I disliked the onboarding experience at the Brussels airport. The process is convoluted and was not explained to any passengers. I also don't understand why thee is an additional security screening when getting off the plane from Africa, when there was none when getting off the plane from the US.

Worst and most inattentive in-flight service I've ever had.

The 787 Dreamliner was probably the smoothest aircraft I have ever flown on. Made for a lovely trip

It was a good flight. The entertainment could be better.

I'm a nervous, autistic adult. The staff were very friendly and answered my questions and came by at regular intervals to check everyone's comfort. They even resolved a fight between two couples in front of me!

roomiest flight in economy I've taken in years. Excellent experience!

While the connection was efficient and my luggage arrived intact, the overall onboard service was disappointing. Despite being on a flight lasting more than eight hours in a very cold cabin environment, my request for a blanket was denied on the grounds that blankets were not available for that flight segment. This was particularly surprising, as many airlines, including Ethiopian Airlines, provide blankets upon request even on significantly shorter flights. The lack of accommodation left me uncomfortable and congested throughout the journey. In addition, the crew's overall demeanor seemed indifferent, resulting in a service experience that fell short of expectations for a long-haul flight.

I was booked to travel from Dallas to Nairobi via Chicago and Brussels and had been issued boarding passes for all three segments of my journey. At the boarding gate in Dallas, I was required to check my carry-on luggage due to limited cabin space. Despite my attempts to explain that I was traveling internationally and would not have access to the bag during transit, my concerns were not considered. I also informed the staff that I did not have a padlock to secure the luggage, but this was disregarded. Consequently, I had to hastily transfer essential items from my carry-on into my handbag. To my surprise, upon arriving at Chicago Airport, I observed numerous international travelers boarding with cabin bags that were significantly larger than mine. This experience left me extremely disappointed and led me to decide against using United Airlines for future international travel, a sentiment I have also shared with friends and family. Unfortunately, the onboard experience on the Chicago to Brussels flight further reinforced my dissatisfaction. The cabin crew appeared disengaged, indifferent, and lacking in attentiveness, resulting in a service experience that fell well below my expectations.

I want to highlight the crew members and their excellent work and professionalism. They work hard to make a long trip the most comfortable as possible, the food and drinks they offer are pretty good. And they are always asking if you need something else. I have had experiences with other airlines where you have to basically beg for a bottle of water. This is not the case. Highly recommended!!!

the blanket was great and pillow helped. really need a toothpick packed with meals

Very comfortable plane. The food was very good (for airplane food). The crew was great

The legroom was lacking and the entertainment system lacked adequate selection of older films. Modern films are generally not very good.

I flew from Brussels to Munich, then from Munich to Denver. The flight from Brussels was only about 2.5 hours and it was okay. But the flight from Munich was about 12 hours and we sat on the plane for a very long time after everyone boarded. I paid something like $75 for a “preferred” seat in economy and it was so cramped my knees rubbed against the hard shell pocket. You couldn’t turn your legs to the side because the passenger next to you was too close. I was on the aisle but couldn’t put my leg out because there was often traffic or carts. Maybe I’m expecting too much but on such a long flight I’d like to see more comfortable seats. I think it was a United A380 plane. I won’t be flying anywhere that far away again. My legs and feet are still swollen 4 days later.

On Time departure and arrival Entertainment system not very userfriendly

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