HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Brussels

$245+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BRU
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Brussels with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Chicago to Brussels are usually found in October or April, booked 87 days in advance, depart on a Monday or Wednesday and return on a Friday

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 June 16, 2025.

Round-trip from

$475
(FlightHub)

One-way from

$245
(lastminute.com)

Popular in

July

Cheapest in

October

Average price

$1,085
From Chicago (CHI) to Brussels
Search Deals
One-way flight from Chicago (CHI) to Brussels
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 16, 2025.

This FlightHub deal was found by Cheapflights users on 6/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:15 pmORD - BRU
1 stop12h 00mScandinavian Airlines
Thu 10/210:20 amBRU - ORD
1 stop12h 50mScandinavian Airlines
Deal found 6/14$475
This CrystalTravel deal was found by Cheapflights users on 6/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:25 pmORD - BRU
1 stop10h 25mIcelandair
Sun 8/241:50 pmBRU - ORD
1 stop14h 25mIcelandair
Deal found 6/16$502
This lol.travel deal was found by Cheapflights users on 6/16. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/102:07 pmORD - BRU
1 stop10h 53mUnited Airlines
Tue 8/1910:00 amBRU - ORD
1 stop11h 55mUnited Airlines
Deal found 6/16$508
This Gotogate deal was found by Cheapflights users on 6/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1010:40 amORD - BRU
1 stop14h 20mAir Canada
Tue 8/1910:00 amBRU - ORD
1 stop11h 55mAir Canada
Deal found 6/15$515
This Flighttix deal was found by Cheapflights users on 6/16. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/108:40 amORD - BRU
1 stop16h 20mMultiple Airlines
Tue 8/1910:15 amBRU - ORD
Nonstop8h 40mMultiple Airlines
Deal found 6/16$526
This Virgin Atlantic deal was found by Cheapflights users on 6/15. 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.
Wed 12/31:00 pmMDW - BRU
2 stops13h 00mVirgin Atlantic
Tue 12/911:00 amBRU - MDW
2 stops17h 44mVirgin Atlantic
Deal found 6/15$560
This Vliegwinkel deal was found by Cheapflights users on 6/16. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/105:50 pmORD - BRU
Nonstop8h 00mAustrian Airlines
Tue 8/1910:15 amBRU - ORD
Nonstop8h 40mAustrian Airlines
Deal found 6/16$583
This Delta deal was found by Cheapflights users on 6/16. 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.
Tue 9/29:30 amMDW - BRU
2 stops16h 10mDelta
Wed 9/1010:45 amBRU - MDW
1 stop17h 41mDelta
Deal found 6/16$590
This Mytrip deal was found by Cheapflights users on 6/16. 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 8/109:15 pmORD - CRL
1 stop12h 15mMultiple Airlines
Tue 8/197:35 amCRL - ORD
1 stop13h 25mMultiple Airlines
Deal found 6/16$597
This Delta deal was found by Cheapflights users on 6/16. 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.
Sun 8/107:01 pmORD - BRU
2 stops12h 34mDelta
Tue 8/1910:45 amBRU - ORD
1 stop13h 52mDelta
Deal found 6/16$600
This KLM deal was found by Cheapflights users on 6/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1212:43 pmMDW - BRU
1 stop12h 57mKLM
Sun 8/2410:45 amBRU - MDW
1 stop14h 02mKLM
Deal found 6/14$606
This Virgin Atlantic deal was found by Cheapflights users on 6/14. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/71:26 pmORD - BRU
1 stop12h 14mVirgin Atlantic
Thu 8/1410:45 amBRU - ORD
2 stops20h 11mVirgin Atlantic
Deal found 6/14$640

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 June 16, 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

Sat 9/13

7:15 pm-2:15 pm

1 stop12h 00m

Brussels Bruxelles-National

Thu 10/2

10:20 am-4:10 pm

1 stop12h 50m

$475

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 8/13

7:25 pm-12:50 pm

1 stop10h 25m

Brussels Bruxelles-National

Sun 8/24

1:50 pm-9:15 pm

1 stop14h 25m

$502

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 8/10

2:07 pm-8:00 am

1 stop10h 53m

Brussels Bruxelles-National

Tue 8/19

10:00 am-2:55 pm

1 stop11h 55m

$508

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 8/10

10:40 am-8:00 am

1 stop14h 20m

Brussels Bruxelles-National

Tue 8/19

10:00 am-2:55 pm

1 stop11h 55m

$515

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 8/10

8:40 am-8:00 am

1 stop16h 20m

Brussels Bruxelles-National

Tue 8/19

10:15 am-11:55 am

Nonstop8h 40m

$526

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Wed 12/3

1:00 pm-9:00 am

2 stops13h 00m

Brussels Bruxelles-National

Tue 12/9

11:00 am-9:44 pm

2 stops17h 44m

$560

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 8/10

5:50 pm-8:50 am

Nonstop8h 00m

Brussels Bruxelles-National

Tue 8/19

10:15 am-11:55 am

Nonstop8h 40m

$583

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Tue 9/2

9:30 am-8:40 am

2 stops16h 10m

Brussels Bruxelles-National

Wed 9/10

10:45 am-9:26 pm

1 stop17h 41m

$590

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 8/10

9:15 pm-4:30 pm

1 stop12h 15m

Charleroi Brussels

Tue 8/19

7:35 am-2:00 pm

1 stop13h 25m

$597

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 8/10

7:01 pm-2:35 pm

2 stops12h 34m

Brussels Bruxelles-National

Tue 8/19

10:45 am-5:37 pm

1 stop13h 52m

$600

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 34 results
1
2
3
4

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 June 13, 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 $1,096). 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 June 16, 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 June 16, 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).

Rainfall in Brussels by month

Plan your trip to Brussels by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Brussels ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. August is typically the driest time to visit Brussels when rainfall is around 1.6 in.

Temperature in Brussels by month

Plan your trip to Brussels by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Brussels, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

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 June 16, 2025.
Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from Chicago to Brussels. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,963 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,363 reviews
Delta
8.0
Very good
7,963 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
804 reviews
Delta
8.0
Very good
7,963 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,628 reviews
Delta
8.0
Very good
7,963 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,801 reviews
Delta
8.0
Very good
7,963 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 ($475), Icelandair ($496), and Air Canada ($515) offers the cheapest pricing from Chicago to Brussels. You may be able to fly from Chicago to Brussels for 43% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Chicago to Brussels one-way?

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $245. However, be on the lookout for offers from TAP AIR PORTUGAL and Scandinavian Airlines, as they are both options that can get you from Chicago to Brussels for a low price.

  • 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 (65%), Austrian Airlines (65%) or Brussels Airlines (65%) 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 $2,141, our data indicates the cheapest price to be $470. The most popular route (Chicago O'Hare Intl - Brussels Bruxelles-National), is priced around $332.

  • 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 $1,096). 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$313Average$506FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$428Average$534FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$492Average$821FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$513Average$883FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$551Average$634FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$552Average$729FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$639Average$1,033FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$728Average$1,078FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$813Average$1,318FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.