$343 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 10/31. 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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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

Sun, Nov 23 - Mon, Dec 29
Scandinavian Airlines Logo
12:35 pm - 4:45 pmBRU-ORD
35h 10m2 stops
Scandinavian Airlines Logo
7:20 pm - 9:40 amORD-BRU
31h 20m1 stop
$499Scandinavian Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
Scandinavian Airlines Logo
7:20 pm - 4:45 pmBRU-ORD
28h 25m2 stops
Scandinavian Airlines Logo
7:20 pm - 6:40 pmORD-BRU
16h 20m2 stops
$500Scandinavian Airlines
Find Deal
Sat, Nov 22 - Fri, Dec 5
Air Canada Logo
7:00 am - 2:55 pmBRU-ORD
14h 55m2 stops
Air Canada Logo
12:50 pm - 7:50 amORD-BRU
12h 00m1 stop
$502Air Canada
Find Deal
Wed, Nov 5 - Wed, Nov 12
United Airlines Logo
10:30 am - 3:20 pmBRU-ORD
11h 50m1 stop
United Airlines Logo
5:55 pm - 8:55 amORD-BRU
8h 00mnonstop
$504United Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
United Airlines Logo
10:10 am - 12:10 pmBRU-ORD
9h 00mnonstop
United Airlines Logo
5:55 pm - 8:55 amORD-BRU
8h 00mnonstop
$505United Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
Scandinavian Airlines Logo
7:20 pm - 9:40 amORD-BRU
31h 20m1 stop
$506Scandinavian Airlines
Find Deal
Wed, Oct 22 - Sun, Oct 26
Lufthansa Logo
8:30 am - 12:55 pmBRU-ORD
11h 25m1 stop
Lufthansa Logo
5:55 pm - 7:55 amORD-BRU
8h 00mnonstop
$510Lufthansa
Find Deal
Fri, Oct 3 - Thu, Oct 16
Lufthansa Logo
10:15 am - 12:05 pmBRU-ORD
8h 50mnonstop
Lufthansa Logo
5:55 pm - 9:00 amORD-BRU
8h 05mnonstop
$513Lufthansa
Find Deal
Thu, Feb 26 - Mon, Mar 2
Brussels Airlines Logo
10:10 am - 12:10 pmBRU-ORD
9h 00mnonstop
Brussels Airlines Logo
5:55 pm - 8:55 amORD-BRU
8h 00mnonstop
$530Brussels Airlines
Find Deal
Sun, Nov 23 - Mon, Dec 29
American Airlines Logo
11:20 am - 10:56 pmBRU-ORD
18h 36m2 stops
American Airlines Logo
2:59 pm - 11:10 amORD-BRU
13h 11m2 stops
$537American Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
Lufthansa's Premium Economy offers more space and a bag.
United's Wi-Fi varies; check coverage maps for reliability.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Scandinavian Airlines
Cheapest • from $499 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
BRU-ORD
Cheapest
BRU-ORD
Most popular
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 30% compared to booking last minute.
Insights
Insights
Insights
Insights
Cheapest round-trip
$499
Typical prices: $608-745
Scandinavian Airlines
Sun 11/23Mon 12/29
BRU - ORD • 2 stops
Cheapest non-stop
$505
Typical prices: $592-755
United Airlines
Wed 11/5Wed 11/12
BRU - ORD • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Chicago!
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
Booking Insights

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.

How much is a round-trip flight from Brussels to Chicago?

What is the cheapest Brussels to Chicago flight route?

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

The cheapest return flight from Brussels to Chicago costs $505 on the route between Brussels Bruxelles-National Airport (BRU) and Chicago O'Hare Intl Airport (ORD). It is also the most popular route.

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 Thursdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Chicago, Wednesday is the cheapest day to fly and Saturday 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 December, where the average cost of round-trip tickets is $716 and $694 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, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Cheapest flight$343
Flight from Brussels to Chicago O'Hare Airport

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 $343 for a one-way ticket and $499 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, oneworld, and SkyTeam 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
United AirlinesOverall score based on 8926 reviews
8.1Crew
6.6Food
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

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

8.0 ExcellentAnonymous, Aug 2025YOW - ORD
Read more United Airlines reviews

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.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

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.

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

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.

Better food than other airlines and the flight staff was very attentive and nice.

Very good except for the boarding process which was more hectic than it should have been

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

The flight from Cincinnati to Philadelphia was satisfactory and uneventful.

All of my Aer Lingus flights were delayed. The seat I purchased with extra leg room was exactly the same as my previous seat that was free. I would appreciate my money back.

It was fine. Not worth the premium price. Overhead bins were so high I could barely reach and no crew offered to help me. Average food. Lounge in Dublin - 51st and green- absolutely appalling. Plagued with hordes of flies, dirty, meager food and beverages. Shameful.

Dear Aer Lingus Customer Care, I am writing to formally raise a complaint regarding my recent experience on Aer Lingus flight EI53 from Dublin to Seattle on 22/08/2025. Both my wife and I were seated in 15D, 15E directly under a faulty air conditioning unit. Even though the unit was switched off, cold air continued seeping through the sides and blew directly onto us for the entire duration of the flight (over 9 hours). We reported the issue to the cabin crew, but the only attempted solution was placing a piece of food-packaging sticker over the vent. Unsurprisingly, this had no effect. When we pressed further, the crew told us: “It is hard to fix it because we don’t have an engineer on board.” As a result, my wife and I remained exposed to constant cold airflow for the whole flight, and both of us became unwell afterwards, experiencing chills, sore throat and fever at the end of the flight. This has caused significant distress, disrupted our work plans. This experience highlights both a serious maintenance issue and a lack of adequate care for passengers. We therefore request: A full investigation into the defective AC system on this aircraft. An explanation of why no effective remedy (such as reseating us) was provided. Compensation for the illness and disruption caused to both myself and my wife. We ask for a full written response within 28 days. Should this matter not be satisfactorily resolved, we are prepared to escalate the complaint to the Irish Aviation Authority and Commission for Aviation Regulation and other relevant authorities. Thank you for your urgent attention to this matter. Sincerely, Temuujin Tuvshingal Myagmarsuren Ganbold

A little late, but an overall pleasant flight. Staff pleasent hand helpful, a great start to our holiday.

Not JetBlue's fault but Aer Lingus never explained how to transfer to JetBlue.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

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.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

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.

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

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.

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

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

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

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.

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:

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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