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$291+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — ORD
Mar 4 — Mar 111
Wed 3/4
Wed 3/11
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 February 2, 2026.

This Vliegwinkel deal was found by Cheapflights users on 1/31. 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.
Fri 3/66:00 am
BRU
-
ORD
1 stop16h 25m
TAP AIR PORTUGAL
Sun 4/266:00 pm
ORD
-
BRU
1 stop19h 05m
TAP AIR PORTUGAL
Deal found 1/31$530
This TAP AIR PORTUGAL deal was found by Cheapflights users on 1/31. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:50 am
BRU
-
ORD
1 stop34h 35m
TAP AIR PORTUGAL
Wed 3/47:10 pm
ORD
-
BRU
1 stop14h 55m
TAP AIR PORTUGAL
Deal found 1/31$547
This lastminute.com deal was found by Cheapflights users on 2/1. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:10 pm
BRU
-
ORD
1 stop28h 00m
Scandinavian Airlines
Sat 4/187:15 pm
ORD
-
BRU
1 stop12h 20m
Scandinavian Airlines
Deal found 2/1$563
This Gotogate deal was found by Cheapflights users on 1/31. 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.
Thu 3/510:20 am
BRU
-
ORD
1 stop13h 25m
Scandinavian Airlines
Wed 3/118:20 pm
ORD
-
BRU
1 stop17h 30m
Scandinavian Airlines
Deal found 1/31$564
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Fri 4/1010:20 am
BRU
-
ORD
1 stop12h 50m
Scandinavian Airlines
Sat 4/187:15 pm
ORD
-
BRU
1 stop12h 20m
Scandinavian Airlines
Deal found 2/1$565
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Wed 4/810:20 am
BRU
-
ORD
1 stop12h 50m
Scandinavian Airlines
Wed 4/157:15 pm
ORD
-
BRU
1 stop12h 20m
Scandinavian Airlines
Deal found 2/1$566
This Mytrip deal was found by Cheapflights users on 1/31. 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.
Thu 2/1910:20 am
BRU
-
ORD
1 stop13h 25m
Scandinavian Airlines
Wed 3/47:20 pm
ORD
-
BRU
1 stop12h 10m
Scandinavian Airlines
Deal found 1/31$567
This oojo deal was found by Cheapflights users on 1/31. 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 3/1210:20 am
BRU
-
ORD
1 stop13h 25m
Scandinavian Airlines
Thu 3/198:20 pm
ORD
-
BRU
1 stop17h 30m
Scandinavian Airlines
Deal found 1/31$572
This Finnair deal was found by Cheapflights users on 2/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:55 pm
BRU
-
STL
2 stops29h 35m
Multiple Airlines
Sun 6/219:40 pm
STL
-
BRU
1 stop15h 20m
Multiple Airlines
Deal found 2/1$614
This Mytrip deal was found by Cheapflights users on 1/31. 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.
Thu 5/217:05 am
CRL
-
ORD
2 stops18h 10m
Multiple Airlines
Thu 5/287:25 pm
ORD
-
CRL
2 stops19h 05m
Multiple Airlines
Deal found 1/31$633
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Sun 3/12:25 pm
BRU
-
STL
2 stops15h 34m
Lufthansa
Sat 3/77:00 pm
STL
-
BRU
1 stop29h 55m
Lufthansa
Deal found 1/31$668
This Mytrip deal was found by Cheapflights users on 1/31. 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.
Thu 2/195:35 pm
CRL
-
ORD
2 stops28h 50m
Multiple Airlines
Wed 3/47:10 pm
ORD
-
CRL
2 stops20h 40m
Multiple Airlines
Deal found 1/31$683

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 February 2, 2026.

Round-trip from

$530
(Vliegwinkel)

One-way from

$291
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$531
From Brussels to Illinois
Search Deals
One-way flight from Brussels to Illinois
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 2, 2026.
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

Thu 2/19

11:50 am-3:25 pm

1 stop34h 35m

Chicago O'Hare Intl

Wed 3/4

7:10 pm-5:05 pm

1 stop14h 55m

$547

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Tue 6/9

7:55 pm-6:30 pm

2 stops29h 35m

Lambert-St Louis

Sun 6/21

9:40 pm-8:00 pm

1 stop15h 20m

$614

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 6/10

9:15 pm-6:30 pm

2 stops28h 15m

Lambert-St Louis

Sun 6/21

9:40 pm-8:00 pm

1 stop15h 20m

$614

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Wed 4/8

10:20 am-4:10 pm

1 stop12h 50m

Chicago O'Hare Intl

Mon 4/20

7:15 pm-10:40 am

2 stops32h 25m

$615

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 2/12

8:30 pm-4:45 pm

1 stop27h 15m

Chicago O'Hare Intl

Mon 2/16

7:20 pm-9:40 am

1 stop31h 20m

$629

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Tue 4/7

3:15 pm-4:10 pm

1 stop31h 55m

Chicago O'Hare Intl

Fri 4/17

7:15 pm-9:40 am

1 stop31h 25m

$629

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 4/9

9:10 pm-4:10 pm

2 stops26h 00m

Chicago O'Hare Intl

Fri 4/17

7:15 pm-2:35 pm

1 stop12h 20m

$632

BrusselsChicago

CRL - ORD

CRLORD

Charleroi Brussels

Thu 5/21

7:05 am-6:15 pm

2 stops18h 10m

Chicago O'Hare Intl

Thu 5/28

7:25 pm-9:30 pm

2 stops19h 05m

$633

BrusselsChicago

CRL - ORD

CRLORD

Charleroi Brussels

Thu 2/19

5:35 pm-3:25 pm

2 stops28h 50m

Chicago O'Hare Intl

Wed 3/4

7:10 pm-10:50 pm

2 stops20h 40m

$683

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 3/1

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Sat 3/7

7:00 pm-7:55 am

1 stop29h 55m

$684

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

Showing 1-10 of 60 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, March is the cheapest month in which you can book a flight from Brussels to Illinois (average of $500). Flying from Brussels to Illinois in February is currently the most expensive (average of $562). 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 February 2, 2026.

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.

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 February 2, 2026.
See what other customers who have flown with United Airlines, Scandinavian Airlines, 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
9,229 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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
9,229 reviews
United Airlines
7.4
Good
9,229 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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.
Scandinavian Airlines
7.3
Good
1,676 reviews
United Airlines
7.4
Good
9,229 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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
381 reviews
United Airlines
7.4
Good
9,229 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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
7.1
Good
606 reviews
United Airlines
7.4
Good
9,229 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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
7,758 reviews
United Airlines
7.4
Good
9,229 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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 TAP AIR PORTUGAL, Scandinavian Airlines, and Lufthansa fly from Brussels to Illinois in about 12h 50m. The time it takes to get you to your destination can typically vary by up to 21h 45m. 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 cheapest airlines to fly from Brussels to Illinois one-way?

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as $443. Users have also found prices from $521 and $551 on LOT and Lufthansa, 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: Air Canada (77%), Austrian Airlines (77%), Brussels Airlines (77%).

  • What are the cheapest flights from Brussels to Illinois?

    On average you can expect to pay $1,532 for a flight from Brussels to Illinois. The cheapest flight overall is $638 while the most popular route, (Brussels Bruxelles-National - Chicago O'Hare Intl) is currently priced at $528.

  • 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, March is the cheapest month in which you can book a flight from Brussels to Illinois (average of $500). Flying from Brussels to Illinois in February is currently the most expensive (average of $562). 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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Charleroi Brussels to Orlando flights
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Charleroi Brussels to Atlanta flights
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Bruxelles-National to Salt Lake City flights
Bruxelles-National to Philadelphia flights
Bruxelles-National to Sky Harbor Intl flights
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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 February 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$521Average$669FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$521Average$680FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$568Average$700FlexibilityNo cancel feeOn-time69%

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