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$325+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — ORD
févr. 27 — mars 61
jeu. 2/27
jeu. 3/6
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 février 22, 2025.

Round-trip from

$487
(Booking.com)

One-way from

$325
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$527

Good round-trip deal

$665 or less

Good one-way deal

$658 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. 14% potential increase in price ($114 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in February 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 février 22, 2025.

This Booking.com deal was found by Cheapflights users on 2/21. 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.
jeu. 4/1710:20 amBRU - ORD
1 stop15h 40mAer Lingus
sam. 4/263:45 pmORD - BRU
1 stop10h 55mAer Lingus
Deal found 2/21$487
This AirNGo deal was found by Cheapflights users on 2/21. 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.
sam. 3/89:50 amBRU - ORD
1 stop11h 55mBritish Airways
lun. 3/249:15 pmORD - BRU
1 stop13h 25mBritish Airways
Deal found 2/21$500
This SWISS deal was found by Cheapflights users on 2/21. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/69:40 amBRU - ORD
1 stop33h 30mSWISS
ven. 11/287:05 pmORD - BRU
1 stop17h 05mSWISS
Deal found 2/21$507
This Finnair deal was found by Cheapflights users on 2/21. 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.
ven. 5/97:05 pmBRU - STL
2 stops30h 10mMultiple Airlines
jeu. 5/156:00 amSTL - BRU
2 stops29h 20mMultiple Airlines
Deal found 2/21$513
This British Airways deal was found by Cheapflights users on 2/21. 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.
sam. 4/2610:05 pmBRU - STL
2 stops23h 48mBritish Airways
lun. 5/51:45 pmSTL - BRU
2 stops13h 20mBritish Airways
Deal found 2/21$517
This American Airlines deal was found by Cheapflights users on 2/21. 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.
dim. 3/165:30 pmBRU - ORD
1 stop28h 15mAmerican Airlines
mer. 4/27:15 pmORD - BRU
1 stop18h 10mAmerican Airlines
Deal found 2/21$517
This American Airlines deal was found by Cheapflights users on 2/21. 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.
lun. 4/77:05 pmBRU - ORD
1 stop23h 40mMultiple Airlines
lun. 4/144:55 pmORD - BRU
1 stop14h 25mMultiple Airlines
Deal found 2/21$519
This Scandinavian Airlines deal was found by Cheapflights users on 2/22. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 2/2810:30 amBRU - ORD
1 stop14h 20mScandinavian Airlines
dim. 3/98:55 pmORD - BRU
1 stop16h 55mScandinavian Airlines
Deal found 2/22$528
This Flighttix deal was found by Cheapflights users on 2/21. 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. 3/810:10 amBRU - ORD
Nonstop9h 05mLufthansa
lun. 3/245:55 pmORD - BRU
Nonstop8h 00mLufthansa
Deal found 2/21$566
This United Airlines deal was found by Cheapflights users on 2/21. 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. 4/210:00 amBRU - ORD
1 stop17h 00mUnited Airlines
mer. 4/95:50 pmORD - BRU
Nonstop8h 10mUnited Airlines
Deal found 2/21$580
This TAP AIR PORTUGAL deal was found by Cheapflights users on 2/22. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 2/286:00 amBRU - ORD
1 stop16h 30mTAP AIR PORTUGAL
dim. 3/99:25 pmORD - BRU
1 stop20h 20mTAP AIR PORTUGAL
Deal found 2/22$583
This Delta deal was found by Cheapflights users on 2/22. 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.
sam. 3/86:15 amBRU - ORD
1 stop15h 15mDelta
lun. 3/249:47 amORD - BRU
2 stops15h 48mDelta
Deal found 2/22$595

Find flights from Belgium to Illinois within your budget

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 février 22, 2025.

Fly from

Belgium

Fly to

Illinois

Route

Depart

Return

Price

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

jeu. 4/17

10:20 am-7:00 pm

1 stop15h 40m

Chicago O'Hare Intl

sam. 4/26

3:45 pm-9:40 am

1 stop10h 55m

$487

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

sam. 3/8

9:50 am-2:45 pm

1 stop11h 55m

Chicago O'Hare Intl

lun. 3/24

9:15 pm-4:40 pm

1 stop13h 25m

$500

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

ven. 5/9

7:05 pm-6:15 pm

2 stops30h 10m

Lambert-St Louis

jeu. 5/15

6:00 am-6:20 pm

2 stops29h 20m

$513

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

dim. 3/16

5:30 pm-3:45 pm

1 stop28h 15m

Chicago O'Hare Intl

mer. 4/2

7:15 pm-8:25 pm

1 stop18h 10m

$517

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

sam. 4/26

10:05 pm-2:53 pm

2 stops23h 48m

Lambert-St Louis

lun. 5/5

1:45 pm-10:05 am

2 stops13h 20m

$517

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

lun. 4/7

7:05 pm-11:45 am

1 stop23h 40m

Chicago O'Hare Intl

lun. 4/14

4:55 pm-2:20 pm

1 stop14h 25m

$519

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

jeu. 4/24

7:00 pm-4:10 pm

2 stops28h 10m

Chicago O'Hare Intl

lun. 5/5

7:15 pm-3:20 pm

1 stop13h 05m

$550

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

sam. 3/8

10:10 am-12:15 pm

Nonstop9h 05m

Chicago O'Hare Intl

lun. 3/24

5:55 pm-7:55 am

Nonstop8h 00m

$566

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

mer. 4/2

10:00 am-8:00 pm

1 stop17h 00m

Chicago O'Hare Intl

mer. 4/9

5:50 pm-9:00 am

Nonstop8h 10m

$580

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

sam. 3/8

6:15 am-2:30 pm

1 stop15h 15m

Chicago O'Hare Intl

lun. 3/24

9:47 am-7:35 am

2 stops15h 48m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 44 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.

Travel insights for flights from Belgium to Illinois

Get recent, data-driven insights about flights from Belgium to Illinois including ideal travel times, pricing trends, and more.

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 février 22, 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 février 22, 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 février 22, 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
8,212 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,212 reviews
Delta
8.0
Very good
8,212 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,330 reviews
Delta
8.0
Very good
8,212 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

LOT
7.6
Good
1,079 reviews
Delta
8.0
Very good
8,212 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,271 reviews
Delta
8.0
Very good
8,212 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines
7.5
Good
771 reviews
Delta
8.0
Very good
8,212 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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?

    $483 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on British Airways and Finnair, with prices starting from $487 and $518, 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 4 airlines flying from Belgium to Illinois

Discover the top 4 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 février 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$462Average$483FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$590Average$745FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$592Average$796FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$656Average$800FlexibilityNo cancel feeOn-time69%
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