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$317+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — ORD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:20 am
BRU
-
ORD
1 stop12h 50m
Scandinavian Airlines
Sat 10/318:20 pm
ORD
-
BRU
1 stop12h 10m
Scandinavian Airlines
Deal found 1/28$536
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:55 pm
BRU
-
ORD
1 stop23h 35m
Multiple Airlines
Tue 6/2310:25 pm
ORD
-
BRU
2 stops27h 55m
Multiple Airlines
Deal found 1/27$552
This Finnair deal was found by Cheapflights users on 1/28. 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.
Wed 5/209:15 pm
BRU
-
ORD
1 stop22h 15m
Multiple Airlines
Fri 6/55:00 pm
ORD
-
BRU
1 stop19h 15m
Multiple Airlines
Deal found 1/28$553
This Gotogate deal was found by Cheapflights users on 1/28. 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.
Fri 10/165:45 am
BRU
-
ORD
1 stop17h 25m
Scandinavian Airlines
Sat 10/248:20 pm
ORD
-
BRU
2 stops15h 55m
Scandinavian Airlines
Deal found 1/28$560
This Finnair deal was found by Cheapflights users on 1/28. 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.
Sat 6/67:05 pm
BRU
-
ORD
2 stops29h 30m
Multiple Airlines
Sat 6/205:00 pm
ORD
-
BRU
1 stop14h 20m
Multiple Airlines
Deal found 1/28$575
This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:55 pm
BRU
-
ORD
2 stops29h 07m
ITA Airways
Sat 10/248:55 am
ORD
-
BRU
2 stops19h 50m
ITA Airways
Deal found 1/28$579
This flugladen.de 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/55:55 pm
BRU
-
ORD
1 stop28h 30m
TAP AIR PORTUGAL
Wed 2/187:10 pm
ORD
-
BRU
1 stop21h 40m
TAP AIR PORTUGAL
Deal found 1/27$581
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 2/1210:20 am
BRU
-
ORD
1 stop13h 25m
Scandinavian Airlines
Wed 2/187:20 pm
ORD
-
BRU
1 stop17h 30m
Scandinavian Airlines
Deal found 1/28$586
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 2/128:30 pm
BRU
-
ORD
1 stop27h 15m
Scandinavian Airlines
Thu 2/197:20 pm
ORD
-
BRU
1 stop17h 30m
Scandinavian Airlines
Deal found 1/28$591
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:00 am
CRL
-
ORD
1 stop15h 00m
Multiple Airlines
Wed 2/117:10 pm
ORD
-
CRL
1 stop13h 55m
Multiple Airlines
Deal found 1/27$601
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/910:00 am
BRU
-
STL
1 stop29h 05m
KLM
Mon 3/1612:04 pm
STL
-
BRU
1 stop13h 56m
KLM
Deal found 1/27$621
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/911:50 am
BRU
-
STL
2 stops17h 54m
American Airlines
Mon 3/166:57 pm
STL
-
BRU
2 stops15h 43m
American Airlines
Deal found 1/27$622

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 January 29, 2026.

Round-trip from

$552
(Finnair)

One-way from

$317
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$724

Good round-trip deal

$792 or less

Good one-way deal

$895 or less
From Belgium to Illinois
Search Deals
One-way flight from Belgium 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 January 2026
Search Deals
Price to beat on a round-trip flight from Belgium to Illinois.
Search Deals
Price to beat on a one-way 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 January 29, 2026.
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 2/12

10:20 am-4:45 pm

1 stop13h 25m

Chicago O'Hare Intl

Wed 2/18

7:20 pm-7:50 pm

1 stop17h 30m

$586

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 2/12

10:20 am-4:45 pm

1 stop13h 25m

Chicago O'Hare Intl

Mon 2/16

7:20 pm-9:40 am

1 stop31h 20m

$598

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 3/9

10:00 am-9:05 am

1 stop29h 05m

Lambert-St Louis

Mon 3/16

12:04 pm-8:00 am

1 stop13h 56m

$621

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 3/9

11:50 am-11:44 pm

2 stops17h 54m

Lambert-St Louis

Mon 3/16

6:57 pm-4:40 pm

2 stops15h 43m

$622

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 3/13

6:15 am-11:58 pm

2 stops23h 43m

Lambert-St Louis

Fri 3/20

6:00 am-8:00 am

1 stop20h 00m

$623

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 3/9

8:05 am-9:06 pm

2 stops19h 01m

Lambert-St Louis

Mon 3/16

12:04 pm-8:00 am

1 stop13h 56m

$626

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 3/9

11:50 am-11:44 pm

2 stops17h 54m

Lambert-St Louis

Mon 3/16

2:00 pm-11:10 am

2 stops15h 10m

$628

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Mon 3/16

10:20 am-5:45 pm

1 stop13h 25m

Chicago O'Hare Intl

Fri 3/27

8:20 pm-8:40 am

1 stop30h 20m

$631

BrusselsChicago

CRL - ORD

CRLORD

Charleroi Brussels

Thu 5/7

12:50 pm-1:00 pm

2 stops31h 10m

Chicago O'Hare Intl

Mon 5/18

9:00 pm-8:25 am

1 stop28h 25m

$632

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sat 5/23

7:05 pm-1:50 pm

2 stops25h 45m

Chicago O'Hare Intl

Fri 6/5

4:53 pm-6:20 pm

2 stops18h 27m

$637

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 54 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 $499). Flying from Belgium to Illinois in February is currently the most expensive (average of $558). 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 January 29, 2026.

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 January 29, 2026.

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 January 29, 2026.
Peruse reviews from past customers who have flown with United Airlines, Scandinavian 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
9,215 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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
1,674 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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.
Aer Lingus
7.2
Good
1,443 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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
9,215 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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
7,756 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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 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, KLM, and American Airlines fly from Belgium to Illinois in about 13h 25m. The time it takes to get you to your destination can typically vary by up to 15h 40m. 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.

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

    $439 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 $499). Flying from Belgium to Illinois in February is currently the most expensive (average of $558). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$521Average$669FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$521Average$665FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$568Average$700FlexibilityNo cancel feeOn-time69%

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