$322 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 9/29. 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.
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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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Flights Deals

Cheap Flight Deals 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.

Recent round-trip flight deals from Chicago to Brussels

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Brussels.
Discover the best prices for you by selecting your travel dates on KAYAK.
Scandinavian Airlines Logo
7:15 pm - 3:20 pmORD-BRU
13h 05m1 stop
Scandinavian Airlines Logo
4:00 pm - 4:10 pmBRU-ORD
31h 10m1 stop
$343Scandinavian Airlines
Find Deal
Mon, Sep 22 - Mon, Oct 6
Scandinavian Airlines Logo
7:15 pm - 10:15 amORD-BRU
32h 00m2 stops
Scandinavian Airlines Logo
9:15 pm - 4:10 pmBRU-ORD
25h 55m2 stops
$349Scandinavian Airlines
Find Deal
Mon, Sep 22 - Mon, Oct 6
Turkish Airlines Logo
11:45 pm - 10:10 amORD-BRU
27h 25m1 stop
Turkish Airlines Logo
6:50 pm - 9:40 amBRU-ORD
21h 50m1 stop
$574Turkish Airlines
Find Deal
Wed, Sep 17 - Tue, Sep 23
Turkish Airlines Logo
11:45 pm - 10:10 amORD-BRU
27h 25m1 stop
Turkish Airlines Logo
11:15 am - 10:00 pmBRU-ORD
17h 45m1 stop
$587Turkish Airlines
Find Deal
Wed, Sep 17 - Mon, Sep 22
 Logo
4:30 pm - 11:25 amORD-BRU
11h 55m1 stop
 Logo
6:40 pm - 11:50 amBRU-ORD
24h 10m1 stop
Tue, Aug 12 - Wed, Aug 13
 Logo
7:25 pm - 5:10 pmORD-CRL
14h 45m2 stops
 Logo
5:15 pm - 11:10 pmCRL-ORD
36h 55m3 stops
Wed, Oct 8 - Wed, Oct 15
TAP AIR PORTUGAL Logo
6:00 pm - 11:55 pmORD-BRU
22h 55m1 stop
TAP AIR PORTUGAL Logo
8:55 pm - 4:10 pmBRU-ORD
26h 15m1 stop
$777TAP AIR PORTUGAL
Find Deal
Fri, Oct 3 - Tue, Oct 14
TAP AIR PORTUGAL Logo
6:00 pm - 3:05 pmORD-BRU
14h 05m1 stop
TAP AIR PORTUGAL Logo
3:55 pm - 12:35 pmBRU-ORD
27h 40m1 stop
$792TAP AIR PORTUGAL
Find Deal
Sun, Sep 21 - Wed, Sep 24
United Airlines Logo
8:00 pm - 8:00 amORD-BRU
29h 00m2 stops
United Airlines Logo
10:00 am - 11:23 amBRU-ORD
32h 23m1 stop
$794United Airlines
Find Deal
Sat, Aug 2 - Wed, Aug 20
United Airlines Logo
9:31 pm - 7:15 amORD-BRU
26h 44m1 stop
United Airlines Logo
10:15 am - 11:55 amBRU-ORD
8h 40mnonstop
$806United Airlines
Find Deal
Sat, Aug 2 - Wed, Aug 20
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 $822 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 $822.

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 Sunday 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 $628 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,269 and $1,154 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 8 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Cheapest flight$322
Flight from Chicago to Charleroi Brussels

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 $322 for a one-way ticket and $343 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?

    SkyTeam, oneworld, and Star Alliance 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?

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
See more direct flights

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 8696 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
8.1Crew
6.6Food
Airline reviews

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

8.0 ExcellentAnonymous, Apr 2025ORD - SFO
Read more United Airlines reviews

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

They switched out gate from terminal 1 to terminal two ten minutes before boarding. So we had to make a 20 min crazy fast walk to a different terminal. Then we boarded the plane and waited for over 40 minutes until push back. Brutal

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Our seats were all the way in back of the plane,

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

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.

Very unfriendly approach to me when you rescheduled my return flight due to your delay. No help to address my health concerns because I am diabetics and had orthopedic problems. No clear explanation where to clear customs. I had poor customer service

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.

You cost me my time and did not compensate properly. Gfy.

Missed a connecting flight and SAS was at fault. I was awarded a $20 voucher in exchange for 8 hours of my time? Gfy.

Seat was lumpier than I’ve ever remembered it to be although comfortable when tilted back. I don’t recall being that hungry after being served food from SAS before. Flight attendant on the second flight to Aalborg seemed to be having a bad day.

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.

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

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.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

Bad. Flights were late, by hours. No clear information was provided even until the delayed boarding time.

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.

Seats were alarming close to the row in front of you. I didn’t do the measurements online, which I’m sure they’re available, but it seemed much tighter than other planes, but the airplane itself was well maintained and looked fairly new. My only complaint on the staff was that we’re on an international flight. Normally they give you wine with dinner and the flight attendant decided to pull some strict restrictions and wouldn’t give more than one glass of wine per person, and you could not share with your spouse, which seemed ridiculous when we have four people on the plane with us and only one person ordered wine asked for a second one and she said oh absolutely not. It’s only one per person Which on a transcontinental usually is not the case. They’re very attentive on making sure everyone is as comfortable as possible.

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

Booked through Kayak, couldnt take flight, Kayak punted to Orbiz, Orbiz punted to Aer Lingus, Aer Lingus said sorry about your luck, try Kayak/Orbiz. Terrible customer service collecting air fares and not even offering a voucher when customers cant take flight

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

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.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

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

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