$252 Find Cheap Flights from Brussels to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Brussels to Chicago departing on 9/18. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to Chicago.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to Chicago.
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Flights Deals

Cheap Flights from Brussels to Chicago

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Brussels to Chicago 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 Brussels to Chicago

Wed, Nov 5 - Wed, Nov 12
TAP AIR PORTUGAL Logo
6:00 am - 3:00 pmBRU-ORD
16h 00m1 stop
TAP AIR PORTUGAL Logo
7:10 pm - 11:50 pmORD-BRU
21h 40m1 stop
$436TAP AIR PORTUGAL
Find Deal
Wed, Nov 5 - Wed, Nov 12
TAP AIR PORTUGAL Logo
6:00 am - 3:00 pmBRU-ORD
16h 00m1 stop
TAP AIR PORTUGAL Logo
7:10 pm - 5:05 pmORD-BRU
14h 55m1 stop
$455TAP AIR PORTUGAL
Find Deal
Fri, Sep 5 - Thu, Sep 11
TAP AIR PORTUGAL Logo
5:55 am - 4:10 pmBRU-ORD
17h 15m1 stop
TAP AIR PORTUGAL Logo
6:00 pm - 3:05 pmORD-BRU
14h 05m1 stop
$460TAP AIR PORTUGAL
Find Deal
Thu, Oct 2 - Wed, Dec 3
Aer Lingus Logo
10:20 am - 7:00 pmBRU-ORD
15h 40m1 stop
Aer Lingus Logo
3:55 pm - 9:35 amORD-BRU
10h 40m1 stop
$484Aer Lingus
Find Deal
Fri, Nov 14 - Tue, Nov 18
Aer Lingus Logo
10:15 am - 5:55 pmBRU-ORD
14h 40m1 stop
Aer Lingus Logo
3:55 pm - 6:15 pmORD-BRU
19h 20m1 stop
$487Aer Lingus
Find Deal
Tue, Jul 1 - Wed, Jul 9
United Airlines Logo
7:00 am - 2:55 pmBRU-ORD
14h 55m2 stops
United Airlines Logo
8:55 am - 7:25 amORD-BRU
15h 30m2 stops
$628United Airlines
Find Deal
Mon, Aug 11 - Mon, Aug 25
United Airlines Logo
10:10 am - 11:24 amBRU-ORD
32h 14m1 stop
United Airlines Logo
5:55 pm - 9:00 amORD-BRU
8h 05mnonstop
$633United Airlines
Find Deal
Mon, Aug 11 - Mon, Aug 25
Brussels Airlines Logo
10:15 am - 11:55 amBRU-ORD
8h 40mnonstop
Brussels Airlines Logo
5:55 pm - 9:00 amORD-BRU
8h 05mnonstop
$653Brussels Airlines
Find Deal
Sun, Nov 2 - Sat, Nov 15
Lufthansa Logo
9:30 am - 3:20 pmBRU-ORD
12h 50m1 stop
Lufthansa Logo
5:55 pm - 8:55 amORD-BRU
8h 00mnonstop
$663Lufthansa
Find Deal
Thu, Oct 9 - Mon, Oct 13
Lufthansa Logo
10:15 am - 12:05 pmBRU-ORD
8h 50mnonstop
Lufthansa Logo
5:55 pm - 9:00 amORD-BRU
8h 05mnonstop
$668Lufthansa
Find Deal
Expert advice

Expert advice for your flight from Brussels to Chicago

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United Polaris offers lie-flat seats with aisle access, ideal for long-haul comfort.


United's Wi-Fi varies; check coverage maps before purchasing for reliable connectivity.

Lufthansa

Lufthansa's Premium Economy offers 50% more space and an extra checked bag up to 23kg.


Lufthansa's in-flight entertainment rivals other airlines with films, TV, music, and games on long-haul flights.

Read more about Lufthansaby Jessica Macdonald
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Useful Info

KAYAK's insights & trends for Brussels to Chicago flights

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

What is the cheapest Brussels to Chicago flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Brussels to Chicago.

Our data shows that the cheapest route for a return flight from Brussels to Chicago cost $551 and was between Brussels Bruxelles-National Airport (BRU) and Chicago O'Hare Intl Airport (ORD). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $551.

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

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

If you are looking for a flight deal from Brussels to Chicago, look for departures on Fridays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Chicago, Monday is the cheapest day to fly and Thursday is the most expensive.

What is the cheapest month to fly from Brussels to Chicago?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Brussels to Chicago, 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 to Chicago is February, where tickets cost $527 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $795 and $788 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Brussels to Chicago, 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 to Chicago, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

When to book flights from Brussels to Chicago

Are your dates flexible? Find out the best times to travel from Brussels to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Brussels to Chicago

  • What is the cheapest flight from Brussels to Chicago?

    In the last 3 days, the lowest price for a flight from Brussels to Chicago was $252 for a one-way ticket and $436 for a round-trip.

  • Do I need a passport to fly between Brussels and Chicago?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Brussels and on arrival in Chicago.

  • Which aircraft models fly most regularly from Brussels to Chicago?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Brussels to Chicago?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Brussels and Chicago, with Star Alliance being the most commonly used for this route.

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

    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 Chicago.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Brussels 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 Chicago?

    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 to Chicago with an airline and back to Brussels with another airline.

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

    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 to Chicago from Brussels up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Brussels to Chicago?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Brussels to Chicago.
Find which airlines fly direct from Brussels to Chicago, which days they fly and book direct flights.

Direct departures

Brussels to Chicago

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Chicago to Brussels

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Brussels to Chicago

 
See real verified KAYAK customer reviews for airlines flying from Brussels to Chicago. 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 Brussels to Chicago? 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
Brussels AirlinesOverall score based on 355 reviews
7.1Comfort
7.5Boarding
6.4Food
8.0Crew
6.3Entertainment
Airline reviews

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

10.0 ExcellentGrant, May 2025ALC - BRU
Read more Brussels Airlines reviews

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

It was really good because the employees were very nice and fun to talk to. The entertainment was nice because they had plenty of movies to watch.

Crew was enthusiastic. Meal was surprisingly good. They came to give water very frequently. Negative that the seat reclining didn't work

That was a short flight by the only time I could actually sleep

How can a national carrier and part of Lufthansa group not even provide complimentary water and a snack in such a long flight ?

The flight went well, only during the flight from Brussels to Vilnius I would have liked if they had at least given us plain water to drink.

The boarding process would have been better. When people are flying internationally and the airline is a member of Star Alliance they cannot have different rules for carryon baggage. Brussels Airlines made us adjust the weight of our carryons based on their rules even though we were flying international and our next flight was with United which does not have weight restrictions for carryons. That was just ridiculous.

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

All flight attendants could benefit by taking an international flight on Qantas Airline. Qantas attendants are much more hospitable in every way. Much superior than and attendants on any US airline.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

The first flight was better in terms of the aircraft.

So far so good but food and entertainment are not available for this flight

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

Very modern plane. Good seat spacing. Meals were good. Screens had tons of movies and worked

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

There was no room in the seats, smallest room we've ever had and the food was awful.

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

This flight was of exactly the same high standard as the outbound leg, exactly a week earlier - except that we didn't have any food or drink because it departed at around midnight.

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset. If there is option to use another company, I suggest to other people use them.

I had an exit row and so was Comfortable on the long flight.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

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.

After living in Europe for five years and flying with Lufthansa and KLM airlines, I’ve realized that United Airlines is now a budget carrier. The flight attendant are not friendly. The seats are not comfortable. And everything comes at a cost. I will be flying with KLM and Skyteam like Delta to the US going forward no doubt. United Airlines is not what it once was:

Delayed take off but I think they waited for passengers.

I had to fly United where the flight crew was atrocious

Flight was delayed for no reason and I missed my connection. This added another day of travel and I missed an event I was traveling home for.

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

Cabin class types available on flights from Brussels to Chicago

Cabin classes available on flights from Brussels to Chicago. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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