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$380+ Cheap flights from Belgium 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
janv. 14 — janv. 211
mer. 1/14
mer. 1/21
1 adult, Economy
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Cheap flight deals from Belgium to Illinois

Cheapest flights from Belgium to Illinois
Explore the most affordable flight options available from Belgium to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on décembre 15, 2025.

This Mytrip deal was found by Cheapflights users on 12/15. 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.
jeu. 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
sam. 2/77:20 pmORD - BRU
2 stops32h 30mScandinavian Airlines
Deal found 12/15$554
This oojo deal was found by Cheapflights users on 12/14. 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.
jeu. 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
lun. 1/197:20 pmORD - BRU
1 stop31h 20mScandinavian Airlines
Deal found 12/14$555
This FlightHub deal was found by Cheapflights users on 12/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
mer. 1/147:20 pmORD - BRU
1 stop31h 20mScandinavian Airlines
Deal found 12/13$559
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
lun. 1/127:20 pmORD - BRU
1 stop31h 20mScandinavian Airlines
Deal found 12/13$568
This FlightHub deal was found by Cheapflights users on 12/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/255:55 pmBRU - ORD
1 stop28h 30mTAP AIR PORTUGAL
ven. 1/168:15 pmORD - BRU
1 stop13h 50mTAP AIR PORTUGAL
Deal found 12/13$575
This FlightHub deal was found by Cheapflights users on 12/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
jeu. 1/157:20 pmORD - BRU
1 stop12h 10mScandinavian Airlines
Deal found 12/13$576
This Scandinavian Airlines deal was found by Cheapflights users on 12/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
dim. 1/187:10 pmORD - BRU
1 stop31h 30mScandinavian Airlines
Deal found 12/13$583
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/2510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
ven. 1/167:20 pmORD - BRU
1 stop31h 20mScandinavian Airlines
Deal found 12/13$585
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/278:05 amBRU - MDW
2 stops16h 21mDelta
ven. 1/91:28 pmMDW - BRU
2 stops17h 47mDelta
Deal found 12/13$736
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/278:05 amBRU - MDW
2 stops16h 21mDelta
sam. 1/171:28 pmMDW - BRU
2 stops13h 42mDelta
Deal found 12/13$760
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 12/288:05 amBRU - MDW
2 stops16h 21mDelta
jeu. 1/151:28 pmMDW - BRU
2 stops13h 42mDelta
Deal found 12/13$768
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2910:45 amBRU - MDW
2 stops18h 37mDelta
mar. 1/61:28 pmMDW - BRU
2 stops13h 42mDelta
Deal found 12/13$814

Find flight deals from Belgium to Illinois

Keep the following information in mind while searching for Belgium to Illinois flight deals. Data was last updated décembre 15, 2025.

Round-trip from

$496
(Mytrip)

One-way from

$380
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$723

Good round-trip deal

$769 or less
From Belgium to Illinois
Search Deals
One-way flight from Belgium 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
Price to beat on a round-trip flight from Belgium to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Belgium 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 décembre 15, 2025.
Use the filters below to find and compare flights from Belgium to Illinois that are best for you.

Fly from

Belgium

Fly to

Illinois

Route

Depart

Return

Price

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

jeu. 1/15

3:10 pm-4:45 pm

1 stop32h 35m

Chicago O'Hare Intl

mer. 1/28

7:20 pm-9:40 am

1 stop31h 20m

$498

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

ven. 2/6

3:10 pm-4:45 pm

1 stop32h 35m

Chicago O'Hare Intl

lun. 2/9

7:20 pm-9:40 am

1 stop31h 20m

$530

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

mar. 1/13

7:20 pm-4:45 pm

2 stops28h 25m

Chicago O'Hare Intl

jeu. 1/29

7:10 pm-7:50 pm

1 stop17h 40m

$543

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

ven. 2/20

3:10 pm-4:45 pm

1 stop32h 35m

Chicago O'Hare Intl

ven. 3/6

7:10 pm-9:40 am

1 stop31h 30m

$547

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

jeu. 12/25

10:20 am-4:45 pm

1 stop13h 25m

Chicago O'Hare Intl

sam. 2/7

7:20 pm-10:50 am

2 stops32h 30m

$554

BrusselsChicago

CRL - ORD

CRLORD

Charleroi Brussels

lun. 2/2

6:20 am-10:42 pm

3 stops23h 22m

Chicago O'Hare Intl

mer. 3/18

7:30 pm-8:55 pm

2 stops19h 25m

$668

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

sam. 1/24

11:55 am-7:27 pm

1 stop14h 32m

Lambert-St Louis

sam. 1/31

11:22 am-10:10 am

2 stops15h 48m

$675

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

sam. 1/24

7:00 am-11:59 pm

2 stops23h 59m

Lambert-St Louis

sam. 1/31

1:15 pm-12:35 pm

2 stops16h 20m

$690

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

jeu. 2/19

7:00 am-8:23 pm

2 stops20h 23m

Lambert-St Louis

lun. 2/23

3:15 pm-1:15 pm

2 stops15h 00m

$691

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

jeu. 2/26

9:00 am-8:23 pm

2 stops18h 23m

Lambert-St Louis

lun. 3/2

3:15 pm-1:15 pm

2 stops15h 00m

$691

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 56 results
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Best time to book a flight from Belgium to Illinois

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

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

Currently, June is the cheapest month in which you can book a flight from Belgium to Illinois (average of $486). Flying from Belgium 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 BE to IL?

Find hourly flight availability from Belgium 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 décembre 15, 2025.

One of the essential ways to save on airfare from Belgium to Illinois is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 36% on airfare.

Weekly flight availability from Belgium to Illinois

Explore weekly flight availability from Belgium 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 décembre 15, 2025.

The most flights from BE0 to USIL are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

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 décembre 15, 2025.
Peruse reviews from past customers who have flown with United Airlines, Aer Lingus, and Brussels Airlines from Belgium to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,094 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
9,094 reviews
United Airlines
7.4
Good
9,094 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
1,392 reviews
United Airlines
7.4
Good
9,094 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
9,094 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
590 reviews
United Airlines
7.4
Good
9,094 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
7,631 reviews
United Airlines
7.4
Good
9,094 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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 Belgium 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 Belgium to Illinois?

    Airlines like Scandinavian Airlines, Lufthansa, and United Airlines fly from Belgium to Illinois in about 20h 23m. The time it takes to get you to your destination can typically vary by up to 12h 12m. Airlines will cover a distance of 4393 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $423 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Aer Lingus and LOT, with prices starting from $443 and $521, respectively.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Belgium to Illinois (average of $486). Flying from Belgium 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 Belgium 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 Belgium to Illinois

Discover the top 3 airlines that operate flights from Belgium 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 décembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$521Average$669FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$521Average$680FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$568Average$690FlexibilityNo cancel feeOn-time69%

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