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Illinois

$309+ Cheap flights from Brussels to Illinois

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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — ORD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Brussels to Illinois

Keep the following information in mind while searching for Brussels to Illinois flight deals. Data was last updated September 16, 2025.

Round-trip from

$495
(Booking.com)

One-way from

$309
(CheapTickets)

Popular in

July

Cheapest in

February

Average price

$546
From Brussels to Illinois
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One-way flight from Brussels to Illinois
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Highest demand for flights based on searches. 3% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 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 Brussels to Illinois

Cheapest flights from Brussels to Illinois
Explore the most affordable flight options available from Brussels to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:30 amBRU - ORD
2 stops15h 35mScandinavian Airlines
Wed 11/57:20 pmORD - BRU
2 stops16h 20mScandinavian Airlines
Deal found 9/14$495
This AirNGo deal was found by Cheapflights users on 9/15. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2210:30 amBRU - ORD
1 stop11h 25mUnited Airlines
Sun 10/55:55 pmORD - BRU
Nonstop8h 05mUnited Airlines
Deal found 9/15$498
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/303:10 pmBRU - ORD
1 stop32h 35mScandinavian Airlines
Thu 11/67:20 pmORD - BRU
2 stops18h 35mScandinavian Airlines
Deal found 9/15$499
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:55 pmBRU - ORD
1 stop28h 05mTAP AIR PORTUGAL
Wed 1/77:10 pmORD - BRU
1 stop21h 40mTAP AIR PORTUGAL
Deal found 9/15$501
This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:30 amBRU - ORD
2 stops39h 35mScandinavian Airlines
Thu 11/67:20 pmORD - BRU
2 stops18h 35mScandinavian Airlines
Deal found 9/15$502
This Flighttix deal was found by Cheapflights users on 9/15. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2810:30 amBRU - ORD
1 stop11h 50mUnited Airlines
Thu 11/61:00 pmORD - BRU
1 stop11h 15mUnited Airlines
Deal found 9/15$504
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/168:30 amBRU - ORD
1 stop11h 25mLufthansa
Sun 11/29:50 pmORD - BRU
1 stop11h 25mLufthansa
Deal found 9/14$505
This lol.travel deal was found by Cheapflights users on 9/15. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/289:30 amBRU - ORD
1 stop12h 50mUnited Airlines
Tue 12/27:15 amORD - BRU
1 stop17h 35mUnited Airlines
Deal found 9/15$507
This AirNGo deal was found by Cheapflights users on 9/14. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:10 amBRU - ORD
Nonstop9h 00mUnited Airlines
Wed 11/125:55 pmORD - BRU
Nonstop8h 00mUnited Airlines
Deal found 9/14$508
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:15 amBRU - STL
2 stops18h 04mAmerican Airlines
Thu 11/132:50 pmSTL - BRU
2 stops13h 00mAmerican Airlines
Deal found 9/16$585
This Expedia deal was found by Cheapflights users on 9/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:35 pmBRU - STL
2 stops27h 47mBritish Airways
Thu 11/66:45 pmSTL - BRU
2 stops15h 15mBritish Airways
Deal found 9/15$631
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:45 amBRU - MDW
2 stops17h 51mDelta
Sat 10/1110:35 amMDW - BRU
1 stop15h 05mDelta
Deal found 9/14$638

Cheapflights Fare Finder

 
Customize your flight search to find flights from Brussels to Illinois 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 16, 2025.
Use the filters below to find and compare flights from Brussels to Illinois that are best for you.

Fly from

Brussels

Fly to

Illinois

Route

Depart

Return

Price

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Fri 10/3

10:15 am-12:05 pm

Nonstop8h 50m

Chicago O'Hare Intl

Thu 10/16

4:00 pm-1:15 pm

1 stop14h 15m

$516

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 10/23

2:25 pm-7:55 pm

1 stop12h 30m

Chicago O'Hare Intl

Mon 10/27

5:55 pm-7:55 am

Nonstop8h 00m

$518

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Mon 11/10

7:00 am-1:10 pm

1 stop13h 10m

Chicago O'Hare Intl

Mon 11/17

5:55 pm-8:55 am

Nonstop8h 00m

$518

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Mon 10/13

10:30 am-2:55 pm

1 stop11h 25m

Chicago O'Hare Intl

Mon 10/20

11:15 am-7:45 am

2 stops13h 30m

$519

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 2/26

7:00 am-3:20 pm

1 stop15h 20m

Chicago O'Hare Intl

Mon 3/2

5:55 pm-8:55 am

Nonstop8h 00m

$519

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Tue 12/2

7:00 am-1:10 pm

1 stop13h 10m

Chicago O'Hare Intl

Mon 12/8

5:55 pm-8:55 am

Nonstop8h 00m

$519

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sat 11/15

7:00 am-1:10 pm

1 stop13h 10m

Chicago O'Hare Intl

Thu 11/20

12:50 pm-7:50 am

1 stop12h 00m

$519

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 11/7

11:45 am-11:56 pm

2 stops19h 11m

Lambert-St Louis

Thu 11/13

2:50 pm-10:50 am

2 stops13h 00m

$585

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 11/7

11:45 am-11:56 pm

2 stops19h 11m

Lambert-St Louis

Wed 11/12

3:38 pm-4:20 pm

2 stops17h 42m

$585

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Thu 11/6

10:15 am-11:56 pm

2 stops20h 41m

Lambert-St Louis

Sat 11/15

10:44 am-10:30 am

2 stops16h 46m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 53 results
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Best time to book a flight from Brussels to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Brussels 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 Brussels to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Brussels to Illinois (average of $245). Flying from Brussels to Illinois in March is currently the most expensive (average of $321). 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 BRU to IL?

Find hourly flight availability from Brussels to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Brussels to Illinois as you normally would.

Weekly flight availability from Brussels to Illinois

Explore weekly flight availability from Brussels to Illinois. 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 16, 2025.

The most flights from BR1 to USIL are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated September 16, 2025.
See what other customers who have flown with United Airlines, Brussels Airlines, and Aer Lingus from Brussels to Illinois have to say. 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.
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Brussels Airlines
7.3
Good
359 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Aer Lingus
7.2
Good
1,274 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Icelandair
7.0
Good
544 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Lufthansa
6.8
Okay
7,407 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Brussels to Illinois. 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 Brussels to Illinois?

    Airlines like United Airlines, American Airlines, and Delta fly from Brussels to Illinois in about 12h 30m. The time it takes to get you to your destination can typically vary by up to 6h 41m. The distance between Brussels and Illinois is about 4145 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Most travelers choose Brussels Bruxelles-National - Chicago O'Hare Intl, Brussels Bruxelles-National - Chicago Midway or Charleroi Brussels - Chicago O'Hare Intl when deciding on the best route from Brussels to Illinois.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Brussels to Illinois on time: Air Canada (69%), Austrian Airlines (69%), Brussels Airlines (69%).

  • What are the cheapest flights from Brussels to Illinois?

    On average you can expect to pay $637 for a flight from Brussels to Illinois. The cheapest flight overall is $505 while the most popular route, (Brussels Bruxelles-National - Chicago O'Hare Intl) is currently priced at $412.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Brussels to Illinois 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 Brussels to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Brussels to Illinois (average of $245). Flying from Brussels to Illinois in March is currently the most expensive (average of $321). 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

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Alternative routes for Brussels to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Bruxelles-National to Newark flights
Bruxelles-National to John F Kennedy Intl flights
Bruxelles-National to LaGuardia flights
Charleroi Brussels to John F Kennedy Intl flights
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Charleroi Brussels to Boston flights
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Charleroi Brussels to Orlando flights
Bruxelles-National to Oakland flights
Bruxelles-National to Austin flights
Charleroi Brussels to Dulles Intl flights
Bruxelles-National to Columbia flights
Bruxelles-National to Burbank flights
Bruxelles-National to Columbus flights
Bruxelles-National to Philadelphia flights
Bruxelles-National to New Orleans flights
Bruxelles-National to Charlotte flights

Top 3 airlines flying from Brussels to Illinois

Discover the top 3 airlines that operate flights from Brussels to Illinois. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$521Average$708FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$521Average$665FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$568Average$686FlexibilityNo cancel feeOn-time69%

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