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$256+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BRU
août 19 — août 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Brussels are usually found in October or April, booked 87 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 août 14, 2025.

Round-trip from

$428
(oojo)

One-way from

$256
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$670
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 ($281 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in August 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 août 14, 2025.

This oojo deal was found by Cheapflights users on 8/14. 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.
ven. 11/287:20 pmORD - BRU
2 stops39h 55mScandinavian Airlines
dim. 12/77:45 pmBRU - ORD
2 stops28h 00mScandinavian Airlines
Deal found 8/14$432
This oojo deal was found by Cheapflights users on 8/14. 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.
mar. 10/217:15 pmORD - BRU
1 stop13h 05mScandinavian Airlines
dim. 10/268:30 pmBRU - ORD
1 stop27h 25mScandinavian Airlines
Deal found 8/14$435
This oojo deal was found by Cheapflights users on 8/14. 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.
dim. 12/147:20 pmORD - BRU
2 stops32h 30mScandinavian Airlines
dim. 12/288:30 pmBRU - ORD
1 stop27h 15mScandinavian Airlines
Deal found 8/14$447
This oojo deal was found by Cheapflights users on 8/12. 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.
lun. 12/17:20 pmORD - BRU
2 stops32h 30mScandinavian Airlines
mer. 12/1011:30 amBRU - ORD
2 stops36h 15mScandinavian Airlines
Deal found 8/12$448
This oojo deal was found by Cheapflights users on 8/13. 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.
jeu. 11/137:20 pmORD - BRU
2 stops18h 35mScandinavian Airlines
sam. 11/2210:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 8/13$452
This Mytrip deal was found by Cheapflights users on 8/14. 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.
jeu. 10/98:40 amORD - CRL
2 stops20h 10mMultiple Airlines
jeu. 10/169:05 pmCRL - ORD
2 stops22h 50mMultiple Airlines
Deal found 8/14$636
This Mytrip deal was found by Cheapflights users on 8/13. 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.
dim. 10/512:00 pmORD - CRL
2 stops21h 45mMultiple Airlines
mar. 10/146:50 pmCRL - ORD
2 stops28h 20mMultiple Airlines
Deal found 8/13$659
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/210:31 amMDW - BRU
1 stop15h 09mDelta
mer. 9/1010:45 amBRU - MDW
1 stop17h 41mDelta
Deal found 8/12$692
This Mytrip deal was found by Cheapflights users on 8/12. 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.
dim. 9/148:40 amORD - CRL
2 stops20h 55mMultiple Airlines
sam. 9/208:35 pmCRL - ORD
2 stops26h 20mMultiple Airlines
Deal found 8/12$703
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/11:00 pmMDW - BRU
2 stops13h 00mDelta
mer. 12/108:05 amBRU - MDW
2 stops17h 02mDelta
Deal found 8/12$706
This Virgin Atlantic deal was found by Cheapflights users on 8/12. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/3010:35 amMDW - BRU
1 stop15h 05mVirgin Atlantic
mer. 10/810:45 amBRU - MDW
1 stop18h 29mVirgin Atlantic
Deal found 8/12$726
This Mytrip deal was found by Cheapflights users on 8/12. 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.
dim. 9/79:15 pmORD - CRL
1 stop12h 15mMultiple Airlines
mar. 9/167:35 amCRL - ORD
1 stop13h 25mMultiple Airlines
Deal found 8/12$728

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 août 14, 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

mar. 10/21

7:15 pm-3:20 pm

1 stop13h 05m

Brussels Bruxelles-National

dim. 10/26

8:30 pm-5:55 pm

1 stop27h 25m

$435

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

ven. 11/7

7:20 pm-11:55 am

2 stops33h 35m

Brussels Bruxelles-National

mer. 11/12

10:20 am-4:45 pm

1 stop13h 25m

$442

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

dim. 10/12

7:15 pm-12:00 pm

2 stops33h 45m

Brussels Bruxelles-National

dim. 10/19

7:00 pm-4:10 pm

2 stops28h 10m

$457

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

jeu. 10/9

7:15 pm-6:20 pm

2 stops16h 05m

Brussels Bruxelles-National

lun. 10/20

9:15 pm-4:10 pm

2 stops25h 55m

$458

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

jeu. 10/9

8:40 am-11:50 am

2 stops20h 10m

Charleroi Brussels

jeu. 10/16

9:05 pm-12:55 pm

2 stops22h 50m

$636

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

dim. 10/5

12:00 pm-4:45 pm

2 stops21h 45m

Charleroi Brussels

mar. 10/14

6:50 pm-4:10 pm

2 stops28h 20m

$659

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

mar. 9/2

10:31 am-8:40 am

1 stop15h 09m

Brussels Bruxelles-National

mer. 9/10

10:45 am-9:26 pm

1 stop17h 41m

$692

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

dim. 9/14

8:40 am-12:35 pm

2 stops20h 55m

Charleroi Brussels

sam. 9/20

8:35 pm-3:55 pm

2 stops26h 20m

$703

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

mar. 9/30

10:35 am-8:40 am

1 stop15h 05m

Brussels Bruxelles-National

mer. 10/8

10:45 am-10:14 pm

1 stop18h 29m

$726

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

dim. 9/7

9:15 pm-4:30 pm

1 stop12h 15m

Charleroi Brussels

mar. 9/16

7:35 am-2:00 pm

1 stop13h 25m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 34 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 August 8, 2025.

Booking 87 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 $1,079). 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 août 14, 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 août 14, 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).

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 août 14, 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
1,468 reviews

Overall

7.4

Entertainment

6.6

Comfort

7.3

Boarding

7.6

Crew

8.0

Food

6.6

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
1,468 reviews
Scandinavian Airlines
7.4
Good
1,468 reviews

Overall

7.4

Entertainment

6.6

Comfort

7.3

Boarding

7.6

Crew

8.0

Food

6.6

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
8,916 reviews
Scandinavian Airlines
7.4
Good
1,468 reviews

Overall

7.4

Entertainment

6.6

Comfort

7.3

Boarding

7.6

Crew

8.0

Food

6.6

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
3,940 reviews
Scandinavian Airlines
7.4
Good
1,468 reviews

Overall

7.4

Entertainment

6.6

Comfort

7.3

Boarding

7.6

Crew

8.0

Food

6.6

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
7.1
Good
1,214 reviews
Scandinavian Airlines
7.4
Good
1,468 reviews

Overall

7.4

Entertainment

6.6

Comfort

7.3

Boarding

7.6

Crew

8.0

Food

6.6

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
526 reviews
Scandinavian Airlines
7.4
Good
1,468 reviews

Overall

7.4

Entertainment

6.6

Comfort

7.3

Boarding

7.6

Crew

8.0

Food

6.6

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.

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

    According to our current data, Scandinavian Airlines ($313), 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 60% 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 (48%), Austrian Airlines (48%) or Brussels Airlines (48%) 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 $2,460, our data indicates the cheapest price to be $536. The most popular route (Chicago O'Hare Intl - Brussels Bruxelles-National), is priced around $442.

  • 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 $1,079). 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 8 airlines flying from Chicago to Brussels

Discover the top 8 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 août 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$313Average$497FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$405Average$529FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$492Average$811FlexibilityNo cancel feeOn-time77%
KLMCheapest$506Average$828FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$536Average$769FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$542Average$890FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$590Average$1,036FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$728Average$1,065FlexibilityNo cancel feeOn-time76%

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