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$310+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Belgium to Illinois

Keep the following information in mind while searching for Belgium to Illinois flight deals. Data was last updated September 11, 2025.

Round-trip from

$494
(Scandinavian Airlines)

One-way from

$310
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$632

Good round-trip deal

$579 or less

Good one-way deal

$551 or less
From Belgium to Illinois
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One-way flight from Belgium to Illinois
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Highest demand for flights based on searches. 3% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Belgium to Illinois.
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Price to beat on a one-way flight from Belgium to Illinois.
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Find 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 September 11, 2025.

This Gotogate deal was found by Cheapflights users on 9/10. 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 9/181:50 pmBRU - ORD
1 stop14h 25mIcelandair
Wed 10/17:25 pmORD - BRU
1 stop10h 25mIcelandair
Deal found 9/10$493
This AirNGo deal was found by Cheapflights users on 9/11. 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 11/510:30 amBRU - ORD
1 stop11h 50mUnited Airlines
Wed 11/125:55 pmORD - BRU
Nonstop8h 00mUnited Airlines
Deal found 9/11$496
This lastminute.com deal was found by Cheapflights users on 9/11. 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.
Thu 9/1810:20 amBRU - ORD
1 stop15h 40mAer Lingus
Wed 10/13:45 pmORD - BRU
1 stop10h 55mAer Lingus
Deal found 9/11$497
This Flighttix deal was found by Cheapflights users on 9/11. 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.
Thu 9/189:30 amBRU - ORD
1 stop12h 25mLufthansa
Wed 10/15:55 pmORD - BRU
Nonstop8h 05mLufthansa
Deal found 9/11$505
This Expedia deal was found by Cheapflights users on 9/10. 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.
Fri 11/2810:15 amBRU - ORD
1 stop14h 40mAer Lingus
Fri 12/53:50 pmORD - BRU
1 stop10h 45mAer Lingus
Deal found 9/10$506
This Flighttix deal was found by Cheapflights users on 9/10. 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.
Thu 9/187:00 amBRU - ORD
1 stop12h 55mUnited Airlines
Wed 10/15:55 pmORD - BRU
Nonstop8h 05mUnited Airlines
Deal found 9/10$508
This Flighttix deal was found by Cheapflights users on 9/10. 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.
Sun 9/219:30 amBRU - ORD
1 stop12h 25mMultiple Airlines
Sat 9/274:00 pmORD - BRU
1 stop10h 45mMultiple Airlines
Deal found 9/10$509
This oojo deal was found by Cheapflights users on 9/9. 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 9/241:50 pmBRU - ORD
1 stop11h 25mIcelandair
Wed 11/126:30 pmORD - BRU
1 stop10h 25mIcelandair
Deal found 9/9$510
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/3111:45 amBRU - STL
2 stops27h 08mAmerican Airlines
Tue 11/41:50 pmSTL - BRU
2 stops20h 10mAmerican Airlines
Deal found 9/11$583
This British Airways deal was found by Cheapflights users on 9/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/319:20 pmBRU - STL
2 stops29h 33mBritish Airways
Tue 11/411:42 amSTL - BRU
2 stops16h 08mBritish Airways
Deal found 9/9$587
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/110:55 amBRU - STL
2 stops19h 12mAmerican Airlines
Mon 10/134:25 pmSTL - BRU
2 stops14h 55mAmerican Airlines
Deal found 9/10$594
This American Airlines deal was found by Cheapflights users on 9/10. 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 12/410:15 amBRU - STL
2 stops20h 43mAmerican Airlines
Sun 12/76:13 pmSTL - BRU
2 stops15h 27mAmerican Airlines
Deal found 9/10$606

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 September 11, 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

Thu 2/26

10:20 am-4:45 pm

1 stop13h 25m

Chicago O'Hare Intl

Mon 3/2

7:20 pm-7:50 pm

1 stop17h 30m

$494

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 11/27

10:20 am-4:45 pm

1 stop13h 25m

Chicago O'Hare Intl

Sat 12/6

7:20 pm-10:50 am

2 stops32h 30m

$498

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 2/26

9:00 am-3:20 pm

1 stop13h 20m

Chicago O'Hare Intl

Mon 3/2

5:55 pm-8:55 am

Nonstop8h 00m

$517

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sun 1/25

7:00 am-3:20 pm

1 stop15h 20m

Chicago O'Hare Intl

Tue 2/3

2:27 pm-8:05 am

1 stop10h 38m

$517

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sun 9/21

9:30 am-2:55 pm

1 stop12h 25m

Chicago O'Hare Intl

Mon 10/13

5:55 pm-9:00 am

Nonstop8h 05m

$517

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Wed 10/15

10:30 am-2:55 pm

1 stop11h 25m

Chicago O'Hare Intl

Wed 10/29

2:39 pm-7:15 am

1 stop10h 36m

$517

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Tue 9/23

10:30 am-2:55 pm

1 stop11h 25m

Chicago O'Hare Intl

Mon 11/10

5:55 pm-8:55 am

Nonstop8h 00m

$518

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Wed 9/24

10:30 am-2:55 pm

1 stop11h 25m

Chicago O'Hare Intl

Tue 11/11

12:50 pm-7:50 am

1 stop12h 00m

$518

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sun 11/23

7:00 am-8:05 pm

1 stop20h 05m

Chicago O'Hare Intl

Mon 12/29

12:50 pm-7:50 am

1 stop12h 00m

$518

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 9/25

10:30 am-2:55 pm

1 stop11h 25m

Chicago O'Hare Intl

Thu 11/13

5:55 pm-8:55 am

Nonstop8h 00m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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, August is the cheapest month in which you can book a flight from Belgium to Illinois (average of $245). Flying from Belgium 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 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 September 11, 2025.

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

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 September 11, 2025.

The most flights from BE0 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).

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 11, 2025.
Peruse reviews from past customers who have flown with United Airlines, Brussels Airlines, and Aer Lingus 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
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Brussels Airlines
7.3
Good
359 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Aer Lingus
7.2
Good
1,271 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Icelandair
7.0
Good
546 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Lufthansa
6.8
Okay
7,409 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 13h 20m. The time it takes to get you to your destination can typically vary by up to 2h. Airlines will cover a distance of 4145 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, August is the cheapest month in which you can book a flight from Belgium to Illinois (average of $245). Flying from Belgium 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 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 September 11, 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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