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Illinois

$357+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — ORD
juin 17 — juin 241
mar. 6/17
mar. 6/24
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 juin 12, 2025.

Round-trip from

$549
(Flighttix)

One-way from

$357
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$645

Good round-trip deal

$686 or less

Good one-way deal

$781 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. 10% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in June 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 juin 12, 2025.

This Flighttix deal was found by Cheapflights users on 6/11. 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.
sam. 6/2110:40 amBRU - STL
2 stops19h 39mBritish Airways
ven. 7/187:38 pmSTL - BRU
2 stops18h 37mBritish Airways
Deal found 6/11$538
This AirNGo deal was found by Cheapflights users on 6/10. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/309:15 pmBRU - ORD
1 stop21h 40mBritish Airways
lun. 7/144:36 pmORD - BRU
2 stops19h 59mBritish Airways
Deal found 6/10$553
This American Airlines deal was found by Cheapflights users on 6/11. 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.
sam. 11/16:05 pmBRU - ORD
1 stop26h 50mAmerican Airlines
sam. 11/81:15 pmORD - BRU
2 stops14h 15mAmerican Airlines
Deal found 6/11$562
This Flysmarter deal was found by Cheapflights users on 6/11. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 6/297:40 pmBRU - ORD
1 stop25h 35mMultiple Airlines
lun. 7/147:15 pmORD - BRU
1 stop12h 05mMultiple Airlines
Deal found 6/11$578
This ITA Airways deal was found by Cheapflights users on 6/10. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/268:15 pmBRU - ORD
2 stops23h 55mITA Airways
ven. 7/113:00 pmORD - BRU
1 stop12h 40mITA Airways
Deal found 6/10$589
This Flighttix deal was found by Cheapflights users on 6/12. 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.
jeu. 10/910:00 amBRU - ORD
1 stop11h 55mAir Canada
lun. 10/1310:40 amORD - BRU
1 stop14h 25mAir Canada
Deal found 6/12$590
This Expedia deal was found by Cheapflights users on 6/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 6/297:40 pmBRU - ORD
1 stop25h 35mIberia
mer. 7/304:30 pmORD - BRU
1 stop11h 55mIberia
Deal found 6/11$599
This Icelandair deal was found by Cheapflights users on 6/10. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 10/111:50 pmBRU - ORD
1 stop11h 25mIcelandair
mer. 10/227:25 pmORD - BRU
1 stop10h 25mIcelandair
Deal found 6/10$611
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 10/126:10 amBRU - ORD
1 stop15h 00mDelta
ven. 10/248:55 amORD - BRU
2 stops15h 35mDelta
Deal found 6/10$612
This Virgin Atlantic deal was found by Cheapflights users on 6/11. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/2010:45 amBRU - MDW
2 stops17h 59mVirgin Atlantic
mar. 9/309:30 amMDW - BRU
2 stops16h 10mVirgin Atlantic
Deal found 6/11$614
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/210:25 amBRU - MDW
2 stops15h 11mDelta
mer. 12/31:00 pmMDW - BRU
2 stops13h 00mDelta
Deal found 6/10$616
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/810:00 amBRU - ORD
1 stop17h 11mUnited Airlines
lun. 10/1310:40 amORD - BRU
1 stop14h 25mUnited Airlines
Deal found 6/11$625

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 juin 12, 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

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

lun. 6/23

9:15 pm-3:44 pm

2 stops25h 29m

Lambert-St Louis

lun. 6/30

12:28 pm-10:05 am

2 stops14h 37m

$549

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

lun. 6/30

9:15 pm-11:55 am

1 stop21h 40m

Chicago O'Hare Intl

lun. 7/14

4:36 pm-7:35 pm

2 stops19h 59m

$553

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

sam. 11/1

6:05 pm-2:55 pm

1 stop26h 50m

Chicago O'Hare Intl

sam. 11/8

1:15 pm-10:30 am

2 stops14h 15m

$562

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

jeu. 6/26

6:55 pm-1:10 pm

1 stop25h 15m

Chicago O'Hare Intl

ven. 7/11

3:00 pm-10:40 am

1 stop12h 40m

$569

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

dim. 6/29

7:40 pm-2:15 pm

1 stop25h 35m

Chicago O'Hare Intl

lun. 7/14

7:15 pm-2:20 pm

1 stop12h 05m

$578

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

jeu. 10/9

10:00 am-2:55 pm

1 stop11h 55m

Chicago O'Hare Intl

lun. 10/13

10:40 am-8:05 am

1 stop14h 25m

$590

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

dim. 6/29

7:40 pm-2:15 pm

1 stop25h 35m

Chicago O'Hare Intl

mer. 7/30

4:30 pm-11:25 am

1 stop11h 55m

$599

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

sam. 10/11

1:50 pm-6:15 pm

1 stop11h 25m

Chicago O'Hare Intl

mer. 10/22

7:25 pm-12:50 pm

1 stop10h 25m

$611

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

dim. 10/12

6:10 am-2:10 pm

1 stop15h 00m

Chicago O'Hare Intl

ven. 10/24

8:55 am-7:30 am

2 stops15h 35m

$612

BrusselsChicago

BRU - MDW

BRUMDW

Brussels Bruxelles-National

sam. 9/20

10:45 am-9:44 pm

2 stops17h 59m

Chicago Midway

mar. 9/30

9:30 am-8:40 am

2 stops16h 10m

$614

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 48 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 juin 12, 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 juin 12, 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).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 juin 12, 2025.
See what other customers who have flown with Delta, KLM and LOT from Belgium to Illinois have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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!
LOT
7.6
Good
1,077 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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!
Brussels Airlines
7.4
Good
355 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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 Belgium to Illinois. 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 Belgium to Illinois one-way?

    $494 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Aer Lingus and LOT, with prices starting from $519 and $566, 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, 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

Browse thousands of different options on Cheapflights for your next trip

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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 juin 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$576Average$704FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$579Average$691FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$592Average$767FlexibilityNo cancel feeOn-timeN/A

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