$243 Find Cheap Flights from Chicago to Brussels

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Brussels departing on 7/20. 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 Brussels

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Brussels.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Brussels.
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Cheap Flights from Chicago to Brussels (ORD-BRU)

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

Wed, Dec 3 - Tue, Dec 9
Scandinavian Airlines Logo
7:20 pm - 10:50 amORD-BRU
32h 30m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pmBRU-ORD
36h 15m2 stops
$324Scandinavian Airlines
Find Deal
Mon, Dec 1 - Mon, Dec 8
Scandinavian Airlines Logo
7:20 pm - 10:50 amORD-BRU
32h 30m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$327Scandinavian Airlines
Find Deal
Wed, Dec 10 - Mon, Dec 15
Scandinavian Airlines Logo
7:20 pm - 10:50 amORD-BRU
32h 30m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$330Scandinavian Airlines
Find Deal
Mon, Dec 1 - Mon, Dec 8
Scandinavian Airlines Logo
7:20 pm - 2:30 pmORD-BRU
12h 10m1 stop
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$331Scandinavian Airlines
Find Deal
Thu, Oct 9 - Sat, Oct 18
Icelandair Logo
7:25 pm - 12:50 pmORD-BRU
10h 25m1 stop
Icelandair Logo
1:50 pm - 6:15 pmBRU-ORD
11h 25m1 stop
$501Icelandair
Find Deal
Sun, Sep 14 - Wed, Oct 1
Icelandair Logo
7:25 pm - 12:50 pmORD-BRU
10h 25m1 stop
Icelandair Logo
1:50 pm - 6:15 pmBRU-ORD
11h 25m1 stop
$505Icelandair
Find Deal
Sun, Aug 10 - Tue, Aug 19
United Airlines Logo
2:07 pm - 8:00 amORD-BRU
10h 53m1 stop
United Airlines Logo
10:00 am - 2:55 pmBRU-ORD
11h 55m1 stop
$508United Airlines
Find Deal
Sun, Aug 10 - Tue, Aug 19
United Airlines Logo
2:07 pm - 8:00 amORD-BRU
10h 53m1 stop
United Airlines Logo
10:00 am - 2:55 pmBRU-ORD
11h 55m1 stop
$509United Airlines
Find Deal
Sun, Aug 10 - Tue, Aug 19
Lufthansa Logo
5:50 pm - 8:50 amORD-BRU
8h 00mnonstop
Lufthansa Logo
10:15 am - 11:55 amBRU-ORD
8h 40mnonstop
$532Lufthansa
Find Deal
Thu, Sep 11 - Wed, Sep 17
Turkish Airlines Logo
11:25 am - 5:50 pmORD-BRU
23h 25m1 stop
Turkish Airlines Logo
7:15 am - 9:40 amBRU-ORD
33h 25m1 stop
$639Turkish Airlines
Find Deal
Expert advice

Expert advice for your flight from Chicago to Brussels

 
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.


Free messaging Wi-Fi is available on most United flights; check coverage before purchasing full Wi-Fi.

Lufthansa

Economy passengers enjoy a three-course meal with complimentary beverages on long-haul flights.


Lufthansa offers 11 special meal choices, including gluten-free and kosher, bookable 24 hours before departure.

Read more about Lufthansaby Jessica Macdonald
Brussels Airlines

Brussels Airlines' Premium Economy offers a leg rest, footrest, and large headrest for added comfort.


Brussels Airlines provides priority check-in and lounge access for Premium Economy passengers.

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
Marisa Garcia

Marisa Garcia

Expert on Brussels Airlines

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Useful Info

KAYAK's insights & trends for Chicago to Brussels flights

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

What is the cheapest Chicago O'Hare Intl Airport to Brussels flight route?

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

Our data shows that the cheapest route for a return flight from Chicago O'Hare Intl Airport to Brussels cost $570 and was between Chicago O'Hare Intl Airport (ORD) and Brussels Bruxelles-National Airport (BRU). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $570.

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

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

For Chicago to Brussels, Monday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Brussels back to Chicago, the best deals are generally found on Friday, with Monday being the most expensive.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Brussels?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Brussels, 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 Chicago O'Hare Intl Airport to Brussels is September, where tickets cost $562 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,146 and $1,087 respectively.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Brussels?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Brussels, 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 Chicago O'Hare Intl Airport to Brussels, you should book around 7 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Cheapest flight$243
Flight from Chicago O'Hare Airport to Brussels Airport

When to book flights from Chicago to Brussels

Are your dates flexible? Find out the best times to travel from Chicago to Brussels 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 Chicago to Brussels flights

  • Will I need to get a visa before I fly to Brussels?

    For trips under 90 days for tourism purposes, a visa is not necessary. However, if your travel is intended for other purposes, a visa may be required. Please ensure that your passport remains valid for at least three months beyond your intended stay. Additionally, be prepared to provide evidence of sufficient funds and possess a return plane ticket as part of the travel requirements.

  • What are some of the advantages of flying to Brussels South Charleroi Airport (CRL)?

    For starters, this is a great way to fly to the beautiful town of Charleroi and neighboring towns like Farciennes and Courcelles without having to make the long drive from Brussels Airport (BRU) after your flight. Since there is a one-stop flight available to this airport aboard Air France, the trip from Chicago is actually quite easy.

  • What is one of the quickest flights from Chicago Midway International Airport (MDW) to Brussels?

    By far, your fastest journey from this airport is going to be aboard Delta Air Lines, which offers a two-stop flight that has layovers at Detroit Metropolitan Wayne County Airport (DTW) and Amsterdam Airport Schiphol (AMS). Even with the stops, your trip time is only increased by only a couple of hours compared to a typical one-stop flight from Chicago O' Hare International Airport (ORD).

  • What are some of the perks of flying on Air Canada's Signature Service?

    The Air Canada Signature Service presents passengers with an exceptional premium travel experience centered around the Air Canada Signature Class cabin. This exclusive service ensures a seamless airport journey with dedicated check-in counters, fast-track security clearance, access to luxurious lounges, priority boarding, and baggage handling, along with various other benefits. Onboard, Air Canada Signature Class customers receive exclusive service and a wide array of amenities, promising a truly exceptional and memorable journey from start to finish.

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Brussels?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Brussels was $243 for a one-way ticket and $324 for a round-trip.

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

    A passport is required to fly from Chicago to Brussels.

  • Which airports will I be using when flying from Chicago to Brussels?

    On your way to Brussels, you’ll fly out from Chicago O'Hare Intl. You’ll be landing in one of Brussels’s 2 airports: Brussels Bruxelles-National or Charleroi Brussels.

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

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

  • Which airline alliances offer flights from Chicago to Brussels?

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

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

    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 Chicago to Brussels.

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

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

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

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

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

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to Brussels

  • One way you can get to Chicago O' Hare International Airport (ORD) without having to drive yourself is to take the Chicago Transit Authority Blue Line train that can get you from the Jackson-Blue station to the airport in about 43 minutes.
  • For those traveling on one-stop flights on this trip, some of the usual stopover points will be Amsterdam Airport Schiphol (AMS), Reykjavik Keflavik International Airport (KEF), and Newark International Airport (EWR).
  • Swiss Airlines permits Economy Class passengers to carry one carry-on bag with dimensions not exceeding 23 x 15 x 10 inches and a maximum weight of 15 lb. Business and First Class passengers can bring two carry-on bags. In addition, you can also bring one thin laptop bag.
  • When traveling with Iberia and planning to check bags, please be aware that the weight of each checked bag must not exceed 50 lb, and the linear dimensions should not exceed 62 inches. However, certain ticket tiers offer a higher weight limit of 70 lb for checked bags.
  • Air Canada accepts golf bags in place of a regular piece of checked luggage, provided it weighs less than 50 lb. This bag can contain 14 clubs, 12 golf balls, and one pair of golf shoes.

Prefer to fly direct from Chicago to Brussels?

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

Direct departures

Chicago O'Hare Intl 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

Direct returns

Brussels to Chicago O'Hare Intl

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 Chicago to Brussels

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Brussels. 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 Chicago to Brussels? 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 8810 reviews
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
7.0Entertainment
Airline reviews

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

8.0 ExcellentStacie, Jun 2025ORD - ALB
Read more United Airlines reviews

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

Delay and keep changing gates. I have to run around from B to C then to E.

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I do prefer to fly United and have always had excellent service, except for bad weather. Flights are on time and staff is alway curtious and helpful

Crew was unresponsive to request for a soda. Food was horrible and I’d venture to guess many others thought so as well by the amount that they trashed. Made me sick to my stomach and ended up in bed the remainder of the day once we arrived. Screaming child for 3/4 of the almost 8 hour flight. Crew had no headphones whatsoever for free or purchase. Seating way too tight and we upgraded our seats. I do not see us ever flying this airline again.

Standard short hop flight. No food, no entertainment. Just get in, get something to drink, and try to be as comfortable as you can for an hour.

Cancelled my flight. Only option had a layover in Italy. No compensation for the 4 extra hours of travel time. The travel agency, cheapflightfares, blamed Scandinavian airlines and said there was nothing they could do. Scandinavian airlines said since it was booked through a travel agency there was nothing they could do. The entire thing was incredibly frustrating. Never booking through kayak or with Scandinavian again.

Name change on tickets for a misspelled name was very hard to change

They cancelled our flight home less than 24 hours before it was supposed to leave. It partially ruined our last day because I was on the phone trying to get 5 people home and the stress that it causes. We still arrived at the airport with no definite flight plans. The actual flight was good but my kids really misses the kids meals I had ordered for them which obviously didn’t make it to the new flight.

The seats were really cramped. The high backs on the chairs made you feel claustrophobic.

Boarding was chaotic and the flight left late but arrived at a decent time. This may have been because of the sxsw festival that was going on.

I was pleasantly surprised as it was my first time flying with them. The seats were comfortable with more legroom than usual. The service was great too! The entertainment was good but could use a few more new movies.

Nothing special or negative. Pretty typical flight…no freebies in the way of food etcetera, but none were expected.

The flight got canceled and you just send an email in the middle of the night and no solution to how to get on the next flight or provide other solutions.

One cold drinks service. No snacks with drinks. No tomato juice or apple juice, coke - only fanta or sprite then ran out of that. Went to gally after meal service no one there / no self service for water at least. Waited 25 min for cabin crew to assist. No recycling of cardboard/ plastic - all put to garbage. Breakfast was a nutrigrain bar and an orange juice. Also I'm sure I booked a flight with checked luggage allowance but had to buy extra when I had my booking confirmation. Movies were good. Chairs comfy. Pillow and blanket and ac vents.

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

I dont fly them much anymore. Other carries offere better pricing and better seating options

Seats weren't very comfortable for a long haul flight but the service made up for it.

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

I liked how they looked after couples by providing a row of 4 seats if available.

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

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

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. 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.

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.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

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

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

The United Airlines crew that operated this flight was subpar. They didn’t

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

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

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