$323 Find Cheap Flights from Brussels to Chicago - Compare and Save

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 10/13. 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

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Everything you should know

Cheapest round-trip
$778
Typical prices: $623-$835
Scandinavian Airlines
Sun 9/20Mon 10/5
BRU - ORD • 1 stop
Cheapest non-stop
$779
Typical prices: $623-$812
Lufthansa
Mon 9/21Mon 10/5
BRU - ORD • Non-stop
Top airlines
Cheapest • from $778 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 8h 45m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 20% compared to booking last minute.
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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

Sun, Sep 20 - Mon, Oct 5
Scandinavian Airlines Logo
8:30 pm - 4:10 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
26h 40m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:15 pm - 9:40 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
31h 25m1 stop Kastrup Copenhagen
$778Scandinavian Airlines
Mon, Sep 21 - Mon, Oct 5
Lufthansa Logo
10:15 am - 12:00 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
8h 45mnonstop
Lufthansa Logo
6:00 pm - 9:00 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
8h 00mnonstop
$779Lufthansa
Tue, Sep 8 - Sat, Sep 26
TAP AIR PORTUGAL Logo
8:55 pm - 4:00 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
26h 05m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:05 pm - 3:05 pmORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
14h 00m1 stop Lisbon Humberto Delgado
$779TAP AIR PORTUGAL
Mon, Sep 21 - Mon, Oct 5
Multiple Airlines Logo
10:15 am - 12:00 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
8h 45mnonstop
Multiple Airlines Logo
4:25 pm - 1:15 pmORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
13h 50m1 stop London Heathrow
$779Multiple Airlines
Sat, Dec 26 - Wed, Jan 6
TAP AIR PORTUGAL Logo
5:55 pm - 3:30 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
28h 35m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
7:00 pm - 11:50 pmORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
21h 50m1 stop Lisbon Humberto Delgado
$780TAP AIR PORTUGAL
Tue, Sep 8 - Fri, Sep 11
Lufthansa Logo
2:25 pm - 7:55 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
12h 30m1 stop Frankfurt am Main
Lufthansa Logo
3:10 pm - 11:50 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
13h 40m1 stop Frankfurt am Main
$801Lufthansa
Fri, Aug 28 - Fri, Sep 11
Lufthansa Logo
8:35 am - 12:55 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
11h 20m1 stop Frankfurt am Main
Lufthansa Logo
6:00 pm - 9:00 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
8h 00mnonstop
$801Lufthansa
Thu, Oct 22 - Mon, Nov 9
United Airlines Logo
8:35 am - 12:55 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
11h 20m1 stop Frankfurt am Main
United Airlines Logo
2:30 pm - 8:05 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
10h 35m1 stop Newark
$828United Airlines
Tue, Sep 22 - Wed, Sep 30
United Airlines Logo
8:35 am - 2:55 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
13h 20m1 stop Frankfurt am Main
United Airlines Logo
12:55 pm - 7:25 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
11h 30m1 stop Washington, D.C. Dulles Intl
$828United Airlines
Thu, Sep 24 - Tue, Sep 29
United Airlines Logo
8:35 am - 12:55 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
11h 20m1 stop Frankfurt am Main
United Airlines Logo
6:00 pm - 9:00 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
8h 00mnonstop
$828United Airlines
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 September.

Flight prices are typical for this route right now.

Flights to Chicago from Brussels usually cost between $522 and $987 in September.
The lowest price found in the past 5 days was $778 on Scandinavian Airlines (Sep 20-Oct 5).

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 $769 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 Wednesdays 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 October, where tickets cost $647 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $880 and $856 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 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 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 5 days, the lowest price for a flight from Brussels to Chicago was $323 for a one-way ticket and $778 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 4 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
Scandinavian AirlinesOverall score based on 1932 reviews
6.8Entertainment
7.7Boarding
7.3Comfort
8.0Crew
6.8Food
Airline reviews

I loved the food. The veggie option was delicious. I also appreciate the sense of sustainability with Airline's choice of packaging. Hosteses were super friendly and courtous. I also appreciate that checked luggage was included with the airfare. The entertainment portal could see some improvements. The touch screen responsiveness in Solitaire game was poor and it doesn't seem to be hardware related as other screen functions were just fine. It was hard to move cards between piles and system skipped cards from the deck. Also, there was no option for winnable vs random draw. Sudoku was cumbersome regarding touch screen, too. In addition, the difference between medium and difficult levels in Sudoku was huge. Medium was actually too easy.

10.0 ExcellentAnonymous, Aug 2026
Read more Scandinavian Airlines reviews

I loved the food. The veggie option was delicious. I also appreciate the sense of sustainability with Airline's choice of packaging. Hosteses were super friendly and courtous. I also appreciate that checked luggage was included with the airfare. The entertainment portal could see some improvements. The touch screen responsiveness in Solitaire game was poor and it doesn't seem to be hardware related as other screen functions were just fine. It was hard to move cards between piles and system skipped cards from the deck. Also, there was no option for winnable vs random draw. Sudoku was cumbersome regarding touch screen, too. In addition, the difference between medium and difficult levels in Sudoku was huge. Medium was actually too easy.

This was my return flight and it was 100% different than my out bound. Better seats and great food for sure. As i was disappointed last time but this time they made up for it

Copenhaguen airport is not very efficient, signs are not clear enough. Too much walking.

My daughter always gets sick when we order the gluten free meal option. Internet didn’t work as advertised.

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.

It was so hot on the plane. No air jets above the seats

Please see my comments for the flight from Chicago to Copenhagen

We were sitting in SAS plus. Super friendly, service that went above and beyond on a Full Flight too! Meals were deliscious and trays were cleared promptly. Generous drinks offered throughout the flight. Would like to suggest better movies on offer to watch.... In all genres and maybe more cooking shows? There was only 1, Nadia's Everyday Baking... Thank you

This was my first time flying SAS and used them for 4 flights. The crews, flight and communication was outstanding. I flew premium economy and was extremely impressed by their SAS lounges. I will 100% ise SAS again. Everyone was so pleasant!

little entertainment choices. Seat/bed too firm an no sleeping mat

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

Seats are complete BS for 10 hrs. The guy at counter canceled our return flight from europe. Lufthansa on the way back made United look like a trailer park gathering. If given the opportunity, I will never fly united again. Lufthansa seats werent much better to be fair but the service was a 10 out of 10. Incant express how difficult umited made my trip.

It was a great experience to fly with ANA, the sit is very comfortable.

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

I’m an EP on AA every year for more than a decade but this was a very pleasant and surprising experience. Clean and sizable plane for HOU to CHI. 5 row first class. And excellent food in first class the steak option was really good. Your flight attendants even better. Seat 5A

Gluten free snack options and meals that offer both gluten free and dairy free.

Not a bad flight but a long delay boarding and taking off due to the pilot not arriving on time.

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

Liked the excellent United crew, the food selection, the comfortable cabin and the excellent movie and tv shows selection. The interface on the screen is also excellent and gives the option to let the crew know to wake you up for meals, or not. I disliked the onboarding experience at the Brussels airport. The process is convoluted and was not explained to any passengers. I also don't understand why thee is an additional security screening when getting off the plane from Africa, when there was none when getting off the plane from the US.

It was a good flight. The entertainment could be better.

It didn't happen. Icelandair cancelled the flight from Nuuk, Greenland to Reykjavik, Iceland so I couldn't fly to Portland. Additionally Icelandair rebooked me on a flight that got cancelled too.

How can the airline deploy the oldest 757-200 with a broken down entertainment system and no WiFi for a cross Atlantic 7:50 hr torture chamber experience?? My seat 3A couldn’t be reclined. The footrest was flimsy and useless. And there’s no leg support unlike their newer 737-Max which they lavish on intra-Europe routes. Shame!!

Only drinks included in economy class was water and coffee seat on the 737 were hard as rock. The landing and passport control in Iceland are the worst I have ever seen. 2 hours to clear customs ???? 3 attendants at pass port control out of more than a dozen closed. I” ll never fly to Iceland or transfer through this airport again.

We had a great experience with Icelandair. Boarding was efficient and easy. The flight crew was friendly and helpful. We’ll travel with Icelandair again anytime.

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

Terrible way of boarding in Reykjavik. Seats comfortable. Meal was good.

At least one soda free, felt like I was nickeled to death.

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..

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

We had to be bussed to the plane. And it was raining. Not a pleasant experience.

Very comfortable plane. The food was very good (for airplane food). The crew was great

The legroom was lacking and the entertainment system lacked adequate selection of older films. Modern films are generally not very good.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Everything could have been better. What needed to be wrong with United went wrong

It was good. The seats in economy weren’t bad

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.

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.