$203 Find Cheap Flights from Brussels to Illinois - Compare and Save

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KAYAK's insights & trends for Brussels to Illinois flights

Get data-powered insights and trends into flights from Brussels to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Brussels Bruxelles-National Airport to Illinois?

Flight prices are typical for this route right now.

Flights to Illinois from Brussels Bruxelles-National Airport usually cost between $768 and $949 in September.
The lowest price found in the past 5 days was $779 on Multiple Airlines (Sep 10-Sep 23).

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

The cheapest ticket to Illinois from Brussels Bruxelles-National Airport found in the last 5 days was to Chicago, at $788 round-trip. The most popular route is from Brussels Bruxelles-National Airport (BRU) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $788.

What is the cheapest time of day to fly to Illinois?

The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $904 on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $904.

Can I save money by flying with a layover from Brussels Bruxelles-National Airport to Illinois?

No, with an average price for the route of $801, prices are generally cheapest when you fly direct.

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

The cheapest month for flights from Brussels Bruxelles-National Airport to Illinois is February, when tickets cost $672 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $921 and $880 respectively.

What’s the cheapest day of the week to fly from Brussels to Illinois?

When flying from Brussels to Illinois, you should consider leaving on a Wednesday and avoid Saturdays if you are looking for the best rates. For your return to Brussels, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

How far in advance should I book a flight from Brussels Bruxelles-National Airport to Illinois?

To get a below average price on the flight from Brussels Bruxelles-National Airport to Illinois, you should book around 2 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low season

November

Cheapest flight

$203
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Brussels to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Brussels to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Brussels to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Brussels to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Brussels to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Brussels to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Brussels to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Brussels to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Brussels to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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.
7.4
Scandinavian AirlinesOverall score based on 1964 reviews
7.7Boarding
6.8Entertainment
7.3Comfort
8.0Crew
6.8Food
Airline reviews

Elderly traveler with disability was bumped from extra legroom to economy with little legroom. He couldn’t bend his knee to fit in the seat. Very uncomfortable for a 7 hour flight and will be reported to DOT. Then the food was disgusting. Boiled chicken with boiled rice and steamed veggies. 3 slices of carrot and one broccoli. We couldn’t eat it. No salt or pepper provided. Disgusting.

2.0 MediocreAnonymous, Aug 2026
Read more Scandinavian Airlines reviews

Elderly traveler with disability was bumped from extra legroom to economy with little legroom. He couldn’t bend his knee to fit in the seat. Very uncomfortable for a 7 hour flight and will be reported to DOT. Then the food was disgusting. Boiled chicken with boiled rice and steamed veggies. 3 slices of carrot and one broccoli. We couldn’t eat it. No salt or pepper provided. Disgusting.

Payed $140 xtra for seat arrangement Did not get the preselected seats neiter outbound nor inbound. Absolutely not worth the xtra money

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

On boarding crew at the airport called in the boarding numbers too early meaning before the previous line was completed resulting in later numbers getting to board ahead. Also she asked those who boarded from number 3 to have the tags in their carry-on bags and leave it in the jet bridge. Most of the overhead bins were empty though. This is more work for the ground staff in addition to more inconvenience for passengers waiting to get their carry-ons from the jet bridge.

ok, butt flght was delyed for 2,5h from Frankfurt, and next Flight to Columbuse same

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.

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.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Everything could have been better. What needed to be wrong with United went wrong

It was good. The seats in economy weren’t bad

Very good. Comfortable and I felt well taken care of from start to finish

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

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

Everything you need to know for your flight from Brussels to Illinois

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