$322 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 3/9. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$535
Typical prices: $580-$758
TAP AIR PORTUGAL
Fri 2/27Wed 3/4
BRU - ORD • 1 stop
Cheapest non-stop
$675
Typical prices: $643-$814
Lufthansa
Thu 4/2Wed 4/15
BRU - ORD • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
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
British Airways
Cheapest • from $529 (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 43% compared to booking last minute.
Insights
Insights
Insights
Insights
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Flight 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

Fri, Feb 27 - Wed, Mar 4
TAP AIR PORTUGAL Logo
6:00 am - 3:25 pm
BRU
-
ORD
16h 25m
1 stop
TAP AIR PORTUGAL Logo
7:10 pm - 5:05 pm
ORD
-
BRU
14h 55m
1 stop
$535TAP AIR PORTUGAL
Thu, Apr 23 - Sun, May 10
TAP AIR PORTUGAL Logo
9:05 pm - 4:00 pm
BRU
-
ORD
25h 55m
1 stop
TAP AIR PORTUGAL Logo
6:00 pm - 8:05 pm
ORD
-
BRU
19h 05m
1 stop
$536TAP AIR PORTUGAL
Fri, Feb 20 - Sun, Mar 1
TAP AIR PORTUGAL Logo
6:00 am - 3:25 pm
BRU
-
ORD
16h 25m
1 stop
TAP AIR PORTUGAL Logo
8:25 pm - 5:05 pm
ORD
-
BRU
13h 40m
1 stop
$537TAP AIR PORTUGAL
Thu, Feb 19 - Wed, Mar 4
TAP AIR PORTUGAL Logo
11:50 am - 3:25 pm
BRU
-
ORD
34h 35m
1 stop
TAP AIR PORTUGAL Logo
7:10 pm - 5:05 pm
ORD
-
BRU
14h 55m
1 stop
$544TAP AIR PORTUGAL
Thu, Feb 19 - Wed, Mar 4
Scandinavian Airlines Logo
10:20 am - 4:45 pm
BRU
-
ORD
13h 25m
1 stop
Scandinavian Airlines Logo
7:20 pm - 2:30 pm
ORD
-
BRU
12h 10m
1 stop
$566Scandinavian Airlines
Mon, Mar 9 - Mon, Mar 16
Delta Logo
10:00 am - 5:22 pm
BRU
-
MDW
13h 22m
1 stop
Delta Logo
10:45 am - 8:00 am
MDW
-
BRU
15h 15m
1 stop
$644Delta
Mon, Apr 27 - Thu, Apr 30
Multiple Airlines Logo
8:50 am - 6:15 pm
CRL
-
ORD
16h 25m
2 stops
Multiple Airlines Logo
7:25 pm - 9:30 pm
ORD
-
CRL
19h 05m
2 stops
$650Multiple Airlines
Mon, Apr 27 - Thu, Apr 30
Multiple Airlines Logo
10:00 pm - 5:50 pm
CRL
-
ORD
26h 50m
2 stops
Multiple Airlines Logo
4:20 pm - 11:00 pm
ORD
-
CRL
23h 40m
2 stops
$664Multiple Airlines
Thu, Mar 19 - Sun, Mar 29
Delta Logo
10:00 am - 10:31 pm
BRU
-
MDW
18h 31m
1 stop
Delta Logo
10:45 am - 7:40 am
MDW
-
BRU
13h 55m
1 stop
$736Delta
Thu, Feb 26 - Tue, Mar 3
KLM Logo
10:45 am - 5:37 pm
BRU
-
MDW
13h 52m
2 stops
KLM Logo
1:29 pm - 10:10 am
MDW
-
BRU
13h 41m
2 stops
$742KLM
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?

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 to Chicago departing in February.

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 $666 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, Tuesday 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 $531 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $724 and $703 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 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from Brussels to Chicago

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

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.

Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

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.

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 $322 for a one-way ticket and $529 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 is the only airline alliance operating flights between Brussels and Chicago.

  • 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 9244 reviews
8.1Crew
6.6Food
7.1Entertainment
7.3Comfort
7.7Boarding
Airline reviews

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

10.0 ExcellentYesica, Feb 2026
CHS - ORD
Read more United Airlines reviews

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

This Japanese airline provides great service and very helpful in assisting their passengers.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

I so appreciate the crew members on each flight of United. They are outstanding.

Reliable, nice crew, I fly often on that flight and I like it all.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

The staff was nice, however boarding taking 2 hours. That’s insane. Overall very bad experience, a lot of turbulence and when landed in Chicago was horrible. I don’t think I’ll flight with UA again.

in Austria they made me check in my carry on luggage, and it never arrived in JFK... I had medication there on ice that is useless now, I filed a report and they still cant licate my luggage? what kind of joke is this?

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

Since our earlier flight was delayed, we missed this flight and were rerouted on Lufthansa 2 days later.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

Scandinavian Airlines is terrible. Flight was late. Lost luggage. Rude flight attendants. Terrible experience.

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.

Ancient aircraft (busted armrests, poor cabin temperature with no option for passenger control). Garbage everywhere. Risible checking of safely conditions on landing. Also, late.

Feels like economy sits are getting smaller especially while eating food

I was surprised how good an American airline can be - I was really impressed.

Cut out the nickel and dime pricing for "seat selection" and baggage, To do this on an international flight is just mind boggling. Seriously, why treat customers this way??? Nobody wants these hidden extra fees and everybody hates them. Also plane was too warm and no air vent, and water dripped from the ceiling at one point,

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

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

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.

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 don’t understand how they charge as much as they do for such a poor experience

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

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!

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.