$338 Find Cheap Flights from Brussels Airport to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bruxelles-National to Illinois departing on 11/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to Illinois.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to Illinois.
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Cheap Flights from Bruxelles-National to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$518
St. Louis
St. Louis2 stops$623
Chicago
Chicago1 stop$518
St. Louis
St. Louis2 stops$623

Book Cheap Bruxelles-National to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bruxelles-National to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bruxelles-National to Illinois

vie., dic. 5 - mié., dic. 10
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
Scandinavian Airlines Logo
7:20 pm - 2:30 pmORD-BRU
12h 10m1 stop
$518Scandinavian Airlines
Find Deal
mié., nov. 19 - lun., nov. 24
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
Scandinavian Airlines Logo
7:20 pm - 6:40 pmORD-BRU
16h 20m2 stops
$519Scandinavian Airlines
Find Deal
mar., dic. 2 - jue., dic. 11
Aer Lingus Logo
10:15 am - 5:55 pmBRU-ORD
14h 40m1 stop
Aer Lingus Logo
7:40 pm - 8:10 pmORD-BRU
17h 30m1 stop
$578Aer Lingus
Find Deal
jue., dic. 11 - mié., dic. 17
Aer Lingus Logo
10:15 am - 5:55 pmBRU-ORD
14h 40m1 stop
Aer Lingus Logo
7:40 pm - 6:15 pmORD-BRU
15h 35m1 stop
$581Aer Lingus
Find Deal
vie., nov. 7 - mar., nov. 11
Lufthansa Logo
7:00 am - 5:39 pmBRU-STL
17h 39m2 stops
Lufthansa Logo
12:31 pm - 8:55 amSTL-BRU
13h 24m1 stop
$623Lufthansa
Find Deal
vie., nov. 7 - mar., nov. 11
Lufthansa Logo
7:00 am - 5:39 pmBRU-STL
17h 39m2 stops
Lufthansa Logo
1:10 pm - 10:20 amSTL-BRU
14h 10m2 stops
$633Lufthansa
Find Deal
dom., nov. 23 - mar., dic. 2
British Airways Logo
9:35 pm - 4:27 pmBRU-STL
25h 52m2 stops
British Airways Logo
2:17 pm - 10:50 amSTL-BRU
13h 33m2 stops
$636British Airways
Find Deal
lun., nov. 24 - mar., dic. 2
British Airways Logo
11:50 am - 10:59 pmBRU-STL
18h 09m2 stops
British Airways Logo
2:17 pm - 1:35 pmSTL-BRU
16h 18m2 stops
$645British Airways
Find Deal
mié., dic. 3 - dom., dic. 7
United Airlines Logo
10:30 am - 7:48 pmBRU-STL
16h 18m2 stops
United Airlines Logo
6:42 pm - 8:55 amSTL-BRU
31h 13m1 stop
$661United Airlines
Find Deal
mié., dic. 3 - dom., dic. 7
United Airlines Logo
10:30 am - 7:48 pmBRU-STL
16h 18m2 stops
United Airlines Logo
6:42 pm - 8:55 amSTL-BRU
31h 13m1 stop
$663United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Bruxelles-National to Illinois flights

Get data-powered insights and trends into flights from Bruxelles-National 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?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Brussels Bruxelles-National Airport to Illinois departing in December.

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

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Brussels Bruxelles-National Airport found in the last 72 hours was to Chicago, at $522 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 72 hours was $522.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $509, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Brussels Bruxelles-National Airport to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Brussels Bruxelles-National Airport to Illinois is February, when tickets cost $527 (return) on average. On the other hand, the most expensive months are January and July, when the average cost of round-trip tickets is $717 and $709 respectively.

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

The average price of all round-trip flights from Brussels Bruxelles-National Airport to Illinois clicked on KAYAK for each day over the last 12 months.

When flying from Brussels Airport 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 Airport, you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Brussels Bruxelles-National Airport to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

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 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$338
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Brussels to Chicago O'Hare Airport

FAQs - booking Illinois flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Brussels Airport 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 Airport 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 Airport 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 Airport 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 Airport to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

    The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $583 on average. Morning departures are around 33% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $800.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Brussels Airport to the following destinations at these prices or less: Chicago $575 one-way - $602 round-trip

Reviews of the top 5 airlines serving from Bruxelles-National to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Brussels to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Bruxelles-National 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
United AirlinesOverall score based on 8973 reviews
6.6Food
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
Airline reviews

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

8.0 ExcellentAnonymous, Oct 2025MEM - ORD
Read more United Airlines reviews

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

Excellent experience. Starting with the agent at the Premier bag drop who noticed I was very early for my scheduled flight and offered to rebook me on an earlier flight with my seat preference. She would not let me leave the counter until she knew that all of the changes and new boarding pass showed up on my United app. At the gate, the flight boarded quickly such that we departed early and the flight was smooth. We arrived 20 minutes early at ORD and I was able to be home in time for dinner. One of the best flights I've had.

Salina to travers city was great! But the sept 24 Tranverse city was not! Traverse city to chichago was cancelled, i went to Denver & got to Salina 6 hours later!

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Could have said yes to a glass of wine 🍷 instead of saying we'll come around in a couple of hours

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

Inoperable monitor left no entert for 9 hours. Crew was not helpful Food was awful.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Overall it was good. I missed my connection but I was put on another flight.

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

Wheelchair assistance didn't turn up on time. We had to walk to baggage reclaim and to taxi.

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

Dinner was fabulous. Would have enjoyed a wine with it. None offered... for sale??? Breakfast was disappointing but adequate amount of food.

Dublin airport is big and US Customs and Immigration screening officers are is part of the process there. This eliminates screening upon arrival to US, however should be taken into consideration when playing your transfer. After all, pleasant experience enhanced by draft Guinness and Irish coffee at the buffet area near the gate. We loved boarding by the row, back of the airplane first.

There was a mixup with our tickets. They said they did not receive payment for them but yet we had seat assignments. We had to purchase last-minute tickets which cost us three times as much. that’s why they got a rated of a one.

A caveat, we flew during the ransomware attack that hacked the boarding and luggage tracking systems. I wouldn't ever be angry at the employees for that, but I WOULD be (and am) angry that communication was incredibly poor, that we got few live updates, and that the employees seemed uninformed and ill-equipped to handle the situation. Clear, honest, open communication and instructions would have benefited the situation. Unfortunately, there were literally no gate agents to talk to, no airport employees to direct people, and no clear signage (the app pretty much said "we don't know what gate your flight is."). Beyond this nightmare, the security was the usual dehumanizing circus of "Security Theater" which is... as we all know... only for show and completely useless. All three airports on this journey dropped the ball so hard. The flight industry can do so much better. Aer Lingus can do so much better.

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

Too cramped up for the better seats I paid for.

I didn’t like my seat in my return flight from Montreal to Orlando at all; considering I paid extra for better seats. That middle seat was cramped up way too much.

Suitcase didn’t arrive to Stockholm. Chairs y comfy and not even water is offered

Bad baggage and people management at boarding forcing me to dispatch my bad despite being the perfect size and respecting everything perfectly, whereas many did not and many free empty spots on the plane as usual… making me loose time and my planned bus at arrival to go to Geneva. Costing me 100 euros extra! So Brussels airlines needs to refund me

I never board the flight. My visa was delayed and when I tried calling Kayak, no one answer and I still have not heard from anyone.

All great. Very efficient. Good emails that kept us in the know

Original flight was canceled, booked another one and find out when checking I was on the waiting list. Horrible experience

Actually this is my first time using airline I was in every single thing that happened throughout our journey, the appearance of the plane inside furnished about the seating the flight attendants and many many more I was so excited throughout thank you Brussels Airlines for the great service.

On board service was decent. I like the legroom at UA that seems to be more than in other airlines

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Food was poor quality and the screens for entertainment didn’t work properly

It was a short flight, everything was good with it.

I darted through the Frankfurt airport to make my connecting flight. I asked if it was a possibility to upgrade and the agent did. This was the kindest gesture and it made up for the previous delayed flight and distress/anxiety of anticipating that Zi was going to miss my Frankfurt-Chicago connection. I cannot express my gratitude for the upgrade.. I am 5feet 10 inches do the leg space was amazing.

I meant this flight was not good, the one from Tirana to Frankfurt was better!

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

I wish seats were not reclinable. It's so claustrophobic when the person in front of you spends most of a nine hour flight leaned all the way back. The crew was really nice though and the dinner (red Thai curry) was pretty compelling.

Our flights were severely delayed, then canceled and we had to fly out next day with no sleep accommodation help. This led to our baggage being lost and the service reps after baggage couldn’t be bothered to help. They kept sending us to different counters when we were at the right counter to begin with. The only saving grace was the angel woman supervisor with blond hair who helped us put in a missing baggage claim.

The boarding system was all bogus - employees at the boarding gate were not sound like proffesional or may be possibly rational

I got an email in the morning of the flight 1/7, from Kayak, that I was rebooked from UA 906 to LH 430. Nobody at Lufthansa ot United knew about this. I went to both counters. at the airport. Also, Cheap Flights, who I booked the ticket through, did not know. I ended up staying on the United flight. But this was very disturbing, since I got a very late notice that I was rebooked to an earlier flight, I hurried to the airport to find out after a lot of inquiring that this was a mistake. Not a good Kayak experience.

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