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Belgium

$272+ Cheap flights from Illinois to Belgium

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BRU
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Illinois to Belgium

Cheapest flights from Illinois to Belgium
Explore the most affordable flight options available from Illinois to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This oojo deal was found by Cheapflights users on 1/26. 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.
Fri 4/246:00 pm
ORD
-
BRU
1 stop19h 05m
TAP AIR PORTUGAL
Wed 5/65:55 am
BRU
-
ORD
1 stop17h 05m
TAP AIR PORTUGAL
Deal found 1/26$440
This oojo deal was found by Cheapflights users on 1/26. 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.
Wed 3/47:10 pm
ORD
-
BRU
1 stop14h 55m
TAP AIR PORTUGAL
Tue 3/105:55 pm
BRU
-
ORD
1 stop28h 05m
TAP AIR PORTUGAL
Deal found 1/26$441
This oojo deal was found by Cheapflights users on 1/26. 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.
Wed 4/156:00 pm
ORD
-
BRU
1 stop19h 05m
TAP AIR PORTUGAL
Tue 4/213:55 pm
BRU
-
ORD
1 stop31h 05m
TAP AIR PORTUGAL
Deal found 1/26$447
This FlightHub deal was found by Cheapflights users on 1/26. 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.
Wed 4/157:15 pm
ORD
-
BRU
1 stop31h 25m
Scandinavian Airlines
Mon 4/209:10 pm
BRU
-
ORD
2 stops50h 00m
Scandinavian Airlines
Deal found 1/26$455
This FlightHub deal was found by Cheapflights users on 1/26. 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 5/26:15 pm
ORD
-
BRU
1 stop13h 50m
TAP AIR PORTUGAL
Sat 5/165:55 am
BRU
-
ORD
1 stop17h 20m
TAP AIR PORTUGAL
Deal found 1/26$456
This oojo deal was found by Cheapflights users on 1/27. 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.
Mon 4/137:15 pm
ORD
-
BRU
1 stop16h 15m
Scandinavian Airlines
Wed 4/225:45 am
BRU
-
ORD
1 stop17h 25m
Scandinavian Airlines
Deal found 1/27$459
This FlightHub deal was found by Cheapflights users on 1/25. 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 5/16:00 pm
ORD
-
BRU
1 stop34h 00m
TAP AIR PORTUGAL
Fri 5/155:55 am
BRU
-
ORD
1 stop17h 05m
TAP AIR PORTUGAL
Deal found 1/25$460
This FlightHub deal was found by Cheapflights users on 1/27. 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 5/16:00 pm
ORD
-
BRU
1 stop34h 00m
TAP AIR PORTUGAL
Sat 5/168:55 pm
BRU
-
ORD
1 stop26h 05m
TAP AIR PORTUGAL
Deal found 1/27$461
This FlightHub deal was found by Cheapflights users on 1/27. 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 2/208:15 pm
ORD
-
BRU
1 stop31h 45m
TAP AIR PORTUGAL
Sun 3/86:00 am
BRU
-
ORD
1 stop15h 45m
TAP AIR PORTUGAL
Deal found 1/27$462
This FlightHub deal was found by Cheapflights users on 1/26. 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.
Wed 4/157:15 pm
ORD
-
BRU
2 stops18h 15m
Scandinavian Airlines
Tue 4/2111:20 am
BRU
-
ORD
2 stops35h 50m
Scandinavian Airlines
Deal found 1/26$464
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Wed 3/187:40 am
STL
-
BRU
2 stops18h 10m
Air Canada
Wed 3/2510:00 am
BRU
-
STL
2 stops34h 42m
Air Canada
Deal found 1/27$493
This United Airlines deal was found by Cheapflights users on 1/25. 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 2/252:05 pm
PAH
-
BRU
2 stops59h 50m
United Airlines
Sun 3/110:10 am
BRU
-
PAH
1 stop34h 17m
United Airlines
Deal found 1/25$501

Find flight deals from Illinois to Belgium

Keep the following information in mind while searching for Illinois to Belgium flight deals. Data was last updated January 28, 2026.

Round-trip from

$440
(oojo)

One-way from

$272
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$669

Good round-trip deal

$944 or less

Good one-way deal

$658 or less
From Illinois to Belgium
Search Deals
One-way flight from Illinois to Belgium
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($349 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Belgium.
Search Deals
Price to beat on a one-way flight from Illinois to Belgium.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Belgium 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 January 28, 2026.
Use the filters below to find and compare flights from Illinois to Belgium that are best for you.

Fly from

Illinois

Fly to

Belgium

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 2/23

7:20 pm-7:50 pm

1 stop17h 30m

Brussels Bruxelles-National

Fri 2/27

10:20 am-4:45 pm

1 stop13h 25m

$501

PaducahBrussels

PAH - BRU

PAHBRU

Paducah Barkley Regional

Wed 2/25

2:05 pm-8:55 am

2 stops59h 50m

Brussels Bruxelles-National

Sun 3/1

10:10 am-1:27 pm

1 stop34h 17m

$501

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 3/18

8:30 am-7:15 am

1 stop16h 45m

Brussels Bruxelles-National

Wed 3/25

10:00 am-10:59 pm

2 stops18h 59m

$512

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 4/5

9:00 pm-9:25 pm

1 stop17h 25m

Charleroi Brussels

Fri 4/10

9:50 am-7:15 pm

1 stop16h 25m

$538

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 2/25

7:41 am-8:55 am

1 stop18h 14m

Brussels Bruxelles-National

Sun 3/1

11:55 am-8:23 pm

1 stop15h 28m

$559

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 5/17

7:15 pm-9:40 am

1 stop31h 25m

Brussels Bruxelles-National

Sun 5/24

9:20 pm-4:10 pm

2 stops25h 50m

$600

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 2/17

10:11 am-2:30 pm

2 stops21h 19m

Brussels Bruxelles-National

Mon 2/23

8:30 pm-9:57 pm

2 stops32h 27m

$634

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Fri 2/27

6:30 pm-8:45 pm

2 stops19h 15m

Charleroi Brussels

Sun 3/1

8:50 am-12:40 am

3 stops46h 50m

$638

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 5/18

7:15 pm-7:50 pm

1 stop17h 35m

Brussels Bruxelles-National

Tue 5/26

5:45 am-4:10 pm

1 stop17h 25m

$649

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 5/16

7:15 pm-10:40 am

2 stops32h 25m

Brussels Bruxelles-National

Sun 5/24

9:20 pm-4:10 pm

2 stops25h 50m

$649

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Belgium

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

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Belgium (average of $293). Flying from Illinois to Belgium in April is currently the most expensive (average of $525). 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 IL to BE?

Find hourly flight availability from Illinois to Belgium. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 28, 2026.

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

Weekly flight availability from Illinois to Belgium

Explore weekly flight availability from Illinois to Belgium. 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 January 28, 2026.

The most flights from USIL to BE0 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).

Related info for your journey

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

    Departing from Illinois to Belgium will take you 11h 47m. There are 4148 mi between Illinois and Belgium. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Illinois to Belgium are Aer Lingus ($263), Scandinavian Airlines ($264), and TAP AIR PORTUGAL ($316).

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Illinois to Belgium (average of $293). Flying from Illinois to Belgium in April is currently the most expensive (average of $525). 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.

Alternative routes for Illinois to Belgium

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Illinois to Belgium

Discover the top 8 airlines that operate flights from Illinois to Belgium. 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$293Average$474FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$428Average$610FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$445Average$463FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$492Average$793FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$531Average$695FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$551Average$692FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$590Average$1,040FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$752Average$1,745FlexibilityNo cancel feeOn-timeN/A

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