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$244+ Cheap flights from Chicago (CHI) to Brussels

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BRU
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Brussels are usually found in April or February, booked 38 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Chicago to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Brussels (BR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 25, 2025.

Round-trip from

$421
(Cheapflightsfares)

One-way from

$244
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$607
From Chicago (CHI) to Brussels
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One-way flight from Chicago (CHI) to Brussels
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Highest demand for flights based on searches. 26% potential increase in price ($286 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Chicago to Brussels

Cheapest flights from Chicago to Brussels
Explore the most affordable flight options available from Chicago to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:10 amORD - BRU
2 stops19h 30mScandinavian Airlines
Wed 11/1910:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 9/24$421
This FlightHub deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:10 amORD - BRU
2 stops24h 20mScandinavian Airlines
Sun 11/2310:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 9/23$422
This Cheapflightsfares deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:00 amORD - BRU
2 stops29h 50mScandinavian Airlines
Wed 10/293:10 pmBRU - ORD
1 stop11h 55mScandinavian Airlines
Deal found 9/24$449
This SmartFares deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:05 amORD - BRU
2 stops19h 35mScandinavian Airlines
Tue 10/288:30 pmBRU - ORD
1 stop30h 35mScandinavian Airlines
Deal found 9/23$455
This oojo deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:20 pmORD - BRU
2 stops33h 35mScandinavian Airlines
Sun 12/78:30 pmBRU - ORD
1 stop27h 15mScandinavian Airlines
Deal found 9/24$461
This Cheapflightsfares deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:20 pmORD - BRU
1 stop12h 10mScandinavian Airlines
Tue 12/97:20 pmBRU - ORD
2 stops28h 25mScandinavian Airlines
Deal found 9/22$465
This Scandinavian Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:00 amORD - BRU
2 stops19h 40mScandinavian Airlines
Wed 11/2610:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 9/23$466
This Mytrip deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:30 pmORD - CRL
2 stops20h 50mMultiple Airlines
Tue 11/256:20 amCRL - ORD
2 stops18h 00mMultiple Airlines
Deal found 9/25$510
This Mytrip deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/228:40 amORD - CRL
2 stops20h 20mMultiple Airlines
Wed 10/296:55 amCRL - ORD
2 stops20h 10mMultiple Airlines
Deal found 9/24$578
This Mytrip deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:40 amORD - CRL
3 stops27h 00mMultiple Airlines
Wed 10/225:15 pmCRL - ORD
3 stops28h 49mMultiple Airlines
Deal found 9/24$603
This Mytrip deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2010:27 amORD - CRL
3 stops26h 38mMultiple Airlines
Tue 11/49:25 pmCRL - ORD
2 stops24h 35mMultiple Airlines
Deal found 9/25$641
This Mytrip deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/204:20 pmORD - CRL
2 stops20h 45mMultiple Airlines
Mon 11/38:30 pmCRL - ORD
2 stops23h 40mMultiple Airlines
Deal found 9/25$676

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Brussels that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 25, 2025.
Use the filters below to find and compare flights from Chicago to Brussels that are best for you.

Fly from

Chicago

Fly to

Brussels

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/28

10:40 am-9:40 am

2 stops16h 00m

Brussels Bruxelles-National

Fri 2/6

10:20 am-4:45 pm

1 stop13h 25m

$429

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 11/20

7:00 am-9:40 am

2 stops19h 40m

Brussels Bruxelles-National

Wed 11/26

10:20 am-4:45 pm

1 stop13h 25m

$465

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 10/20

7:15 pm-6:15 pm

2 stops16h 00m

Brussels Bruxelles-National

Mon 11/3

10:20 am-4:45 pm

1 stop13h 25m

$496

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 11/17

7:20 pm-9:40 am

1 stop31h 20m

Brussels Bruxelles-National

Fri 11/21

8:30 pm-4:45 pm

1 stop27h 15m

$500

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 11/12

7:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Mon 11/17

10:20 am-4:45 pm

1 stop13h 25m

$500

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 11/15

7:20 pm-7:50 pm

1 stop17h 30m

Brussels Bruxelles-National

Wed 11/19

10:20 am-4:45 pm

1 stop13h 25m

$500

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 11/13

7:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Sat 11/22

10:20 am-4:45 pm

1 stop13h 25m

$500

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 11/16

6:30 pm-10:20 pm

2 stops20h 50m

Charleroi Brussels

Tue 11/25

6:20 am-5:20 pm

2 stops18h 00m

$525

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Wed 10/22

8:40 am-12:00 pm

2 stops20h 20m

Charleroi Brussels

Wed 10/29

6:55 am-9:05 pm

2 stops20h 10m

$578

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Wed 10/15

10:40 am-8:40 pm

3 stops27h 00m

Charleroi Brussels

Wed 10/22

5:15 pm-3:04 pm

3 stops28h 49m

$603

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/23

Showing 1-10 of 42 results
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Best time to book a flight from Chicago to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Chicago to Brussels?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Brussels. Price data was last updated on September 19, 2025.

Booking 38 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Brussels. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago to Brussels?

Currently, November is the cheapest month in which you can book a flight from Chicago to Brussels (average of $614). Flying from Chicago to Brussels in June is currently the most expensive (average of $1,076). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to BRU?

Find hourly flight availability from Chicago to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 25, 2025.

It’s typically best to fly out from Chicago to Brussels in the evening. Doing so could potentially save you 48% on the flight price compared to flying in the afternoon, which is usually more expensive.

Weekly flight availability from Chicago to Brussels

Explore weekly flight availability from Chicago to Brussels. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 25, 2025.

The most flights from CHI to BR1 are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

How much does it cost to fly round-trip from Chicago to Brussels?

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Brussels. Reviews last updated September 25, 2025.
Read reviews from past customers who have flown Scandinavian Airlines, United Airlines, and Turkish Airlines from Chicago to Brussels. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,493 reviews

Entertainment

6.7

Boarding

7.7

Crew

8.0

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Scandinavian Airlines
7.4
Good
1,493 reviews
Scandinavian Airlines
7.4
Good
1,493 reviews

Entertainment

6.7

Boarding

7.7

Crew

8.0

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
United Airlines
7.4
Good
8,926 reviews
Scandinavian Airlines
7.4
Good
1,493 reviews

Entertainment

6.7

Boarding

7.7

Crew

8.0

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Turkish Airlines
7.3
Good
3,976 reviews
Scandinavian Airlines
7.4
Good
1,493 reviews

Entertainment

6.7

Boarding

7.7

Crew

8.0

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Aer Lingus
7.2
Good
1,302 reviews
Scandinavian Airlines
7.4
Good
1,493 reviews

Entertainment

6.7

Boarding

7.7

Crew

8.0

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Icelandair
7.0
Good
545 reviews
Scandinavian Airlines
7.4
Good
1,493 reviews

Entertainment

6.7

Boarding

7.7

Crew

8.0

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Brussels. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago to Brussels?

    Departing from Chicago to Brussels will take you 15h 25m. Chicago and Brussels are separated by a distance of 4148 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Chicago to Brussels round-trip?

    According to our current data, Scandinavian Airlines ($312), Icelandair ($405), and Turkish Airlines ($492) offers the cheapest pricing from Chicago to Brussels. You may be able to fly from Chicago to Brussels for 61% less than the average price by searching for these airlines.

  • What are the most popular routes from Chicago to Brussels?

    When deciding which route to take from Chicago to Brussels consider Chicago O'Hare Intl - Brussels Bruxelles-National, Chicago Midway - Brussels Bruxelles-National or Chicago O'Hare Intl - Charleroi Brussels as they are the most popular.

  • What are the most reliable airlines from Chicago to Brussels?

    Consider Air Canada (45%), Austrian Airlines (45%) or Brussels Airlines (45%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Brussels.

  • What are the cheapest flights from Chicago to Brussels?

    Looking for the cheapest flight from Chicago to Brussels? While on average our users pay $2,453, our data indicates the cheapest price to be $542. The most popular route (Chicago O'Hare Intl - Brussels Bruxelles-National), is priced around $421.

  • Can I find deals for flights from Chicago to Brussels that include hotel bookings?

    Yes. In addition to deals on Chicago to Brussels flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Brussels?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Brussels.

  • Can I find deals for business class flights from Chicago to Brussels?

    Yes. Cheapflights offers flight deals from Chicago to Brussels by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to Brussels?

    Currently, November is the cheapest month in which you can book a flight from Chicago to Brussels (average of $614). Flying from Chicago to Brussels in June is currently the most expensive (average of $1,076). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 9 airlines flying from Chicago to Brussels

Discover the top 9 airlines that operate flights from Chicago to Brussels. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$312Average$495FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$405Average$561FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$492Average$811FlexibilityNo cancel feeOn-time77%
KLMCheapest$506Average$828FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$551Average$692FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$581Average$777FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$590Average$1,037FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$744Average$890FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$754Average$1,110FlexibilityNo cancel feeOn-time76%

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