Belgium

$294+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BRU
Jul 8 — Jul 151
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Belgium with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Belgium

Keep the following information in mind while searching for Illinois to Belgium flight deals. Data was last updated July 3, 2025.

Round-trip from

$476
(FlightHub)

One-way from

$294
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$1,172

Good round-trip deal

$763 or less

Good one-way deal

$594 or less
From Illinois to Belgium
One-way flight from Illinois to Belgium
Highest demand for flights based on searches. 15% potential increase in price ($146 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Illinois to Belgium.
Price to beat on a one-way flight from Illinois to Belgium.

Find 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 July 3, 2025.

This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:15 pmORD - BRU
1 stop12h 00mScandinavian Airlines
Thu 10/210:20 amBRU - ORD
1 stop12h 50mScandinavian Airlines
Deal found 7/1$476
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Sun 8/109:15 pmORD - CRL
1 stop12h 15mMultiple Airlines
Tue 8/197:35 amCRL - ORD
1 stop13h 25mMultiple Airlines
Deal found 7/1$529
This Icelandair deal was found by Cheapflights users on 7/3. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/127:25 pmORD - BRU
1 stop10h 25mIcelandair
Thu 10/21:50 pmBRU - ORD
1 stop11h 25mIcelandair
Deal found 7/3$530
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/87:50 pmORD - BRU
1 stop34h 35mTurkish Airlines
Tue 10/146:50 pmBRU - ORD
1 stop34h 10mTurkish Airlines
Deal found 7/1$560
This oojo deal was found by Cheapflights users on 7/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/96:15 pmORD - BRU
1 stop18h 50mTAP AIR PORTUGAL
Mon 8/255:55 amBRU - ORD
1 stop17h 45mTAP AIR PORTUGAL
Deal found 7/1$577
This Booking.com deal was found by Cheapflights users on 7/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/285:18 pmSTL - BRU
2 stops55h 32mAir Canada
Wed 12/1010:00 amBRU - STL
2 stops33h 13mAir Canada
Deal found 7/1$588
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/283:15 pmSTL - BRU
1 stop10h 40mUnited Airlines
Wed 12/1010:00 amBRU - STL
2 stops35h 20mUnited Airlines
Deal found 7/1$632
This Delta deal was found by Cheapflights users on 7/2. 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.
Wed 10/291:00 pmMDW - BRU
2 stops13h 00mDelta
Tue 11/411:00 amBRU - MDW
2 stops17h 44mDelta
Deal found 7/2$661
This KLM deal was found by Cheapflights users on 7/3. 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.
Tue 9/210:31 amMDW - BRU
1 stop15h 09mKLM
Wed 9/1010:45 amBRU - MDW
1 stop17h 41mKLM
Deal found 7/3$686
This Gotogate deal was found by Cheapflights users on 7/2. 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.
Sat 8/167:55 amSTL - BRU
2 stops41h 05mMultiple Airlines
Sat 8/232:25 pmBRU - STL
1 stop30h 05mMultiple Airlines
Deal found 7/2$723
This Expedia deal was found by Cheapflights users on 7/2. 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.
Sat 8/167:44 pmSTL - BRU
2 stops39h 16mBritish Airways
Sat 8/2310:05 pmBRU - STL
2 stops28h 24mBritish Airways
Deal found 7/2$744
This Virgin Atlantic deal was found by Cheapflights users on 7/2. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:35 amMDW - BRU
2 stops15h 05mVirgin Atlantic
Wed 10/110:45 amBRU - MDW
1 stop17h 51mVirgin Atlantic
Deal found 7/2$746

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 July 3, 2025.
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

Sat 9/13

7:15 pm-2:15 pm

1 stop12h 00m

Brussels Bruxelles-National

Thu 10/2

10:20 am-4:10 pm

1 stop12h 50m

$476

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 8/10

9:15 pm-4:30 pm

1 stop12h 15m

Charleroi Brussels

Tue 8/19

7:35 am-2:00 pm

1 stop13h 25m

$529

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 9/12

7:25 pm-12:50 pm

1 stop10h 25m

Brussels Bruxelles-National

Thu 10/2

1:50 pm-6:15 pm

1 stop11h 25m

$530

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 10/8

7:50 pm-1:25 pm

1 stop34h 35m

Brussels Bruxelles-National

Tue 10/14

6:50 pm-10:00 pm

1 stop34h 10m

$560

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 8/9

6:15 pm-8:05 pm

1 stop18h 50m

Brussels Bruxelles-National

Mon 8/25

5:55 am-4:40 pm

1 stop17h 45m

$577

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Fri 11/28

5:18 pm-7:50 am

2 stops55h 32m

Brussels Bruxelles-National

Wed 12/10

10:00 am-12:13 pm

2 stops33h 13m

$588

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Fri 11/28

3:15 pm-8:55 am

1 stop10h 40m

Brussels Bruxelles-National

Wed 12/10

10:00 am-2:20 pm

2 stops35h 20m

$632

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Wed 10/29

1:00 pm-8:00 am

2 stops13h 00m

Brussels Bruxelles-National

Tue 11/4

11:00 am-9:44 pm

2 stops17h 44m

$661

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Tue 9/2

10:31 am-8:40 am

1 stop15h 09m

Brussels Bruxelles-National

Wed 9/10

10:45 am-9:26 pm

1 stop17h 41m

$686

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Sat 8/16

7:55 am-8:00 am

2 stops41h 05m

Brussels Bruxelles-National

Sat 8/23

2:25 pm-1:30 pm

1 stop30h 05m

$723

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 35 results
1
2
3
4

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, November is the cheapest month in which you can book a flight from Illinois to Belgium (average of $614). Flying from Illinois to Belgium in June is currently the most expensive (average of $1,079). 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 July 3, 2025.

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 July 3, 2025.

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).

Reviews of airlines servicing Belgium

Get insights into the airlines that provide service to Belgium. 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 Belgium. Reviews last updated July 3, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Austrian Airlines from Illinois to Belgium to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.
  • 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 Icelandair ($310), TAP AIR PORTUGAL ($319), and Scandinavian Airlines ($368).

  • 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, November is the cheapest month in which you can book a flight from Illinois to Belgium (average of $614). Flying from Illinois to Belgium in June is currently the most expensive (average of $1,079). 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.

Top 10 airlines flying from Illinois to Belgium

Discover the top 10 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$313Average$504FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$428Average$562FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$492Average$821FlexibilityNo cancel feeOn-time77%
KLMCheapest$506Average$828FlexibilityNo cancel feeOn-time75%
TAP AIR PORTUGALCheapest$513Average$883FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$551Average$634FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$552Average$737FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$594Average$1,104FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$728Average$1,068FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$813Average$1,318FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.