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$338+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — ORD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This oojo deal was found by Cheapflights users on 12/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Mon 1/197:20 pmORD - BRU
1 stop31h 20mScandinavian Airlines
Deal found 12/16$556
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Sat 1/177:20 pmORD - BRU
1 stop31h 20mScandinavian Airlines
Deal found 12/16$568
This FlightHub deal was found by Cheapflights users on 12/18. 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.
Fri 12/266:00 amBRU - ORD
1 stop16h 25mTAP AIR PORTUGAL
Sun 1/188:25 pmORD - BRU
1 stop13h 40mTAP AIR PORTUGAL
Deal found 12/18$576
This Scandinavian Airlines deal was found by Cheapflights users on 12/16. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Sun 1/187:10 pmORD - BRU
1 stop31h 30mScandinavian Airlines
Deal found 12/16$583
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Thu 1/157:20 pmORD - BRU
1 stop12h 10mScandinavian Airlines
Deal found 12/16$585
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Fri 1/167:20 pmORD - BRU
1 stop31h 20mScandinavian Airlines
Deal found 12/16$586
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 12/255:55 pmBRU - ORD
1 stop28h 30mTAP AIR PORTUGAL
Fri 1/168:15 pmORD - BRU
1 stop13h 50mTAP AIR PORTUGAL
Deal found 12/18$588
This FlightHub deal was found by Cheapflights users on 12/18. 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.
Sun 12/286:00 amBRU - ORD
1 stop15h 45mTAP AIR PORTUGAL
Sun 1/188:25 pmORD - BRU
1 stop13h 40mTAP AIR PORTUGAL
Deal found 12/18$600
This Scandinavian Airlines deal was found by Cheapflights users on 12/16. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Mon 1/127:20 pmORD - BRU
1 stop31h 20mScandinavian Airlines
Deal found 12/16$601
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:00 amBRU - STL
2 stops22h 43mUnited Airlines
Sun 1/46:30 amSTL - BRU
1 stop19h 25mUnited Airlines
Deal found 12/16$785
This Delta deal was found by Cheapflights users on 12/18. 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 12/2511:00 amBRU - MDW
2 stops18h 22mDelta
Wed 1/1411:21 amMDW - BRU
2 stops13h 14mDelta
Deal found 12/18$841
This Delta deal was found by Cheapflights users on 12/18. 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.
Fri 12/268:05 amBRU - MDW
2 stops16h 21mDelta
Thu 1/159:32 amMDW - BRU
2 stops15h 03mDelta
Deal found 12/18$843

Find flight deals from Brussels to Illinois

Keep the following information in mind while searching for Brussels to Illinois flight deals. Data was last updated December 18, 2025.

Round-trip from

$481
(ResecentrumGruppen)

One-way from

$338
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$723
From Brussels to Illinois
Search Deals
One-way flight from Brussels to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($107 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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 2/6

3:10 pm-4:45 pm

1 stop32h 35m

Chicago O'Hare Intl

Mon 2/9

7:20 pm-10:50 am

2 stops32h 30m

$534

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Fri 2/20

3:10 pm-4:45 pm

1 stop32h 35m

Chicago O'Hare Intl

Fri 3/6

7:10 pm-9:40 am

1 stop31h 30m

$548

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Tue 1/13

7:20 pm-4:45 pm

2 stops28h 25m

Chicago O'Hare Intl

Thu 1/29

7:10 pm-7:50 pm

1 stop17h 40m

$561

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 1/15

3:10 pm-4:45 pm

1 stop32h 35m

Chicago O'Hare Intl

Mon 1/19

7:20 pm-9:40 am

1 stop31h 20m

$571

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sun 3/1

3:10 pm-4:45 pm

1 stop32h 35m

Chicago O'Hare Intl

Sat 3/14

8:20 pm-9:40 am

1 stop31h 20m

$584

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Fri 3/13

7:20 pm-5:45 pm

2 stops28h 25m

Chicago O'Hare Intl

Fri 3/27

8:20 pm-7:50 pm

1 stop17h 30m

$637

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 1/23

10:10 am-5:43 pm

1 stop14h 33m

Lambert-St Louis

Tue 1/27

1:15 pm-8:55 am

1 stop12h 40m

$642

BrusselsChicago

CRL - ORD

CRLORD

Charleroi Brussels

Sat 1/31

11:15 am-2:45 pm

2 stops34h 30m

Chicago O'Hare Intl

Fri 2/6

6:30 pm-8:45 pm

2 stops19h 15m

$645

BrusselsChicago

CRL - ORD

CRLORD

Charleroi Brussels

Fri 1/16

6:25 am-8:18 am

3 stops32h 53m

Chicago O'Hare Intl

Fri 1/30

6:30 pm-8:45 pm

2 stops19h 15m

$647

BrusselsChicago

CRL - ORD

CRLORD

Charleroi Brussels

Mon 1/26

6:20 am-10:42 pm

3 stops23h 22m

Chicago O'Hare Intl

Sun 2/8

6:30 pm-10:15 pm

2 stops20h 45m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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, June is the cheapest month in which you can book a flight from Brussels to Illinois (average of $486). Flying from Brussels to Illinois in February is currently the most expensive (average of $554). 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 December 18, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 36% on flights from Brussels to Illinois by exploring options for tickets in the afternoon.

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 December 18, 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 December 18, 2025.
See what other customers who have flown with United Airlines, Aer Lingus, and Brussels Airlines 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
9,093 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,093 reviews
United Airlines
7.4
Good
9,093 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Aer Lingus
7.2
Good
1,399 reviews
United Airlines
7.4
Good
9,093 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Brussels Airlines
7.2
Good
375 reviews
United Airlines
7.4
Good
9,093 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Icelandair
7.0
Good
591 reviews
United Airlines
7.4
Good
9,093 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Lufthansa
6.8
Okay
7,635 reviews
United Airlines
7.4
Good
9,093 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 Scandinavian Airlines, Lufthansa, and Air Canada fly from Brussels to Illinois in about 14h 33m. The time it takes to get you to your destination can typically vary by up to 18h 02m. The distance between Brussels and Illinois is about 4393 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $423. Users have also found prices from $443 and $521 on Aer Lingus and LOT, respectively.

  • 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: Lufthansa (75%), Air Canada (73%), Austrian Airlines (73%).

  • What are the cheapest flights from Brussels to Illinois?

    On average you can expect to pay $937 for a flight from Brussels to Illinois. The cheapest flight overall is $669 while the most popular route, (Brussels Bruxelles-National - Chicago O'Hare Intl) is currently priced at $498.

  • 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, June is the cheapest month in which you can book a flight from Brussels to Illinois (average of $486). Flying from Brussels to Illinois in February is currently the most expensive (average of $554). 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.
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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$521Average$669FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$521Average$665FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$568Average$696FlexibilityNo cancel feeOn-time69%

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