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Illinois

$334+ Cheap flights from Brussels 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — ORD
Jun 22 — Jun 291
Sun 6/22
Sun 6/29
1 adult, Economy
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Cheap flight deals from Brussels to Illinois

Keep the following information in mind while searching for Brussels to Illinois flight deals. Data was last updated June 17, 2025.

Round-trip from

$542
(AirNGo)

One-way from

$334
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$645
From Brussels to Illinois
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One-way flight from Brussels 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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Find flight deals from Brussels to Illinois

Cheapest flights from Brussels to Illinois
Explore the most affordable flight options available from Brussels to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 17, 2025.

This AirNGo deal was found by Cheapflights users on 6/16. 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.
Fri 8/297:35 pmBRU - ORD
1 stop26h 05mBritish Airways
Tue 9/910:35 pmORD - BRU
1 stop12h 10mBritish Airways
Deal found 6/16$542
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Sun 9/143:05 pmBRU - ORD
1 stop27h 45mAmerican Airlines
Thu 9/2510:35 pmORD - BRU
1 stop13h 15mAmerican Airlines
Deal found 6/16$563
This Cheapflightsfares deal was found by Cheapflights users on 6/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/86:55 pmBRU - ORD
1 stop25h 15mITA Airways
Wed 7/163:00 pmORD - BRU
1 stop12h 40mITA Airways
Deal found 6/17$569
This Flighttix deal was found by Cheapflights users on 6/16. 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.
Fri 8/1510:00 amBRU - ORD
1 stop11h 55mAir Canada
Wed 8/2710:40 amORD - BRU
1 stop14h 20mAir Canada
Deal found 6/16$594
This Delta deal was found by Cheapflights users on 6/16. 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.
Sat 10/256:10 amBRU - ORD
1 stop15h 00mDelta
Wed 10/291:35 pmORD - BRU
2 stops14h 35mDelta
Deal found 6/16$618
This Delta deal was found by Cheapflights users on 6/16. 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.
Sun 9/1410:45 amBRU - MDW
1 stop17h 59mDelta
Sat 9/279:30 amMDW - BRU
2 stops16h 10mDelta
Deal found 6/16$620
This Virgin Atlantic deal was found by Cheapflights users on 6/16. 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.
Fri 10/2410:45 amBRU - ORD
2 stops16h 51mVirgin Atlantic
Tue 10/283:35 pmORD - BRU
2 stops34h 25mVirgin Atlantic
Deal found 6/16$620
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Mon 8/1110:10 amBRU - STL
1 stop16h 50mUnited Airlines
Mon 8/186:33 amSTL - BRU
1 stop19h 27mUnited Airlines
Deal found 6/16$624
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Tue 7/17:00 amBRU - ORD
2 stops14h 55mUnited Airlines
Wed 7/910:50 amORD - BRU
1 stop13h 35mUnited Airlines
Deal found 6/17$628
This Gotogate deal was found by Cheapflights users on 6/16. 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.
Mon 8/1110:10 amBRU - STL
2 stops16h 35mAir Canada
Mon 8/181:30 pmSTL - BRU
1 stop11h 30mAir Canada
Deal found 6/16$631
This Aer Lingus deal was found by Cheapflights users on 6/16. 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/810:20 amBRU - ORD
1 stop15h 40mAer Lingus
Mon 10/139:15 pmORD - BRU
1 stop16h 25mAer Lingus
Deal found 6/16$633
This Flighttix deal was found by Cheapflights users on 6/16. 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.
Mon 8/1110:10 amBRU - ORD
1 stop30h 42mMultiple Airlines
Sun 8/245:55 pmORD - BRU
Nonstop8h 05mMultiple Airlines
Deal found 6/16$647

Cheapflights Fare Finder

Customize your flight search to find flights from Brussels 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 June 17, 2025.
Use the filters below to find and compare flights from Brussels to Illinois that are best for you.

Fly from

Brussels

Fly to

Illinois

Route

Depart

Return

Price

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Fri 8/29

7:35 pm-2:40 pm

1 stop26h 05m

Chicago O'Hare Intl

Tue 9/9

10:35 pm-5:45 pm

1 stop12h 10m

$542

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sun 9/14

3:05 pm-11:50 am

1 stop27h 45m

Chicago O'Hare Intl

Thu 9/25

10:35 pm-6:50 pm

1 stop13h 15m

$563

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Tue 7/8

6:55 pm-1:10 pm

1 stop25h 15m

Chicago O'Hare Intl

Wed 7/16

3:00 pm-10:40 am

1 stop12h 40m

$569

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Fri 8/15

10:00 am-2:55 pm

1 stop11h 55m

Chicago O'Hare Intl

Wed 8/27

10:40 am-8:00 am

1 stop14h 20m

$594

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sat 10/25

6:10 am-2:10 pm

1 stop15h 00m

Chicago O'Hare Intl

Wed 10/29

1:35 pm-10:10 am

2 stops14h 35m

$618

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Fri 10/24

10:45 am-8:36 pm

2 stops16h 51m

Chicago O'Hare Intl

Tue 10/28

3:35 pm-8:00 am

2 stops34h 25m

$620

BrusselsChicago

BRU - MDW

BRUMDW

Brussels Bruxelles-National

Sun 9/14

10:45 am-9:44 pm

1 stop17h 59m

Chicago Midway

Sat 9/27

9:30 am-8:40 am

2 stops16h 10m

$620

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/11

10:10 am-8:00 pm

1 stop16h 50m

Lambert-St Louis

Mon 8/18

6:33 am-9:00 am

1 stop19h 27m

$624

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Tue 7/1

7:00 am-2:55 pm

2 stops14h 55m

Chicago O'Hare Intl

Wed 7/9

10:50 am-7:25 am

1 stop13h 35m

$628

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/11

10:10 am-7:45 pm

2 stops16h 35m

Lambert-St Louis

Mon 8/18

1:30 pm-8:00 am

1 stop11h 30m

$631

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 48 results
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Best time to book a flight from Brussels to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Brussels 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 Brussels to Illinois

What is the cheapest month to book a flight from Brussels to Illinois?

Currently, August is the cheapest month in which you can book a flight from Brussels to Illinois (average of $245). Flying from Brussels 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 BRU to IL?

Find hourly flight availability from Brussels 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 June 17, 2025.

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

Weekly flight availability from Brussels to Illinois

Explore weekly flight availability from Brussels 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 June 17, 2025.

The most flights from BR1 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 June 17, 2025.
Read through reviews of airlines operating flights from Brussels to Illinois, such as Delta, KLM and LOT. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

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
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

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
1,363 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

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
1,081 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

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!
Finnair
7.6
Good
1,292 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

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!
Air France
7.5
Good
1,467 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

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 Brussels 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 Brussels to Illinois one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $492. Users have also found prices from $541 and $570 on Aer Lingus and LOT, respectively.

  • What are the most popular routes from Brussels to Illinois?

    Most travelers choose Brussels Bruxelles-National - Chicago O'Hare Intl, Brussels Bruxelles-National - Chicago Midway or Charleroi Brussels - Chicago O'Hare Intl when deciding on the best route from Brussels to Illinois.

  • What are the most reliable airlines from Brussels to Illinois?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Brussels to Illinois on time: Air Canada (77%), Austrian Airlines (77%), Brussels Airlines (77%).

  • What are the cheapest flights from Brussels to Illinois?

    On average you can expect to pay $1,143 for a flight from Brussels to Illinois. The cheapest flight overall is $551 while the most popular route, (Brussels Bruxelles-National - Chicago O'Hare Intl) is currently priced at $455.

  • Can I find deals for flights from Brussels to Illinois that include hotel bookings?

    Yes. In addition to deals on Brussels to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Brussels to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Brussels to Illinois.

  • Can I find deals for business class flights from Brussels to Illinois?

    Yes. Cheapflights offers flight deals from Brussels 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 Brussels to Illinois?

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

See prices for flight routes from nearby airports that may be better suited for you.
Bruxelles-National to Newark flights
Bruxelles-National to John F Kennedy Intl flights
Bruxelles-National to LaGuardia flights
Charleroi Brussels to John F Kennedy Intl flights
Bruxelles-National to Dulles Intl flights
Bruxelles-National to O'Hare Intl flights
Bruxelles-National to Baltimore flights
Bruxelles-National to Los Angeles flights
Bruxelles-National to Reagan-National flights
Bruxelles-National to Seattle flights
Bruxelles-National to Las Vegas flights
Bruxelles-National to Miami flights
Bruxelles-National to Orlando flights
Bruxelles-National to Ontario flights
Bruxelles-National to San Francisco flights
Bruxelles-National to Atlanta flights
Bruxelles-National to Midway flights
Bruxelles-National to Dallas/Fort Worth flights
Bruxelles-National to Boston flights
Bruxelles-National to Minneapolis flights
Bruxelles-National to Fort Lauderdale flights
Bruxelles-National to West Palm Beach flights
Charleroi Brussels to Dulles Intl flights
Charleroi Brussels to Miami flights
Charleroi Brussels to Los Angeles flights
Bruxelles-National to Hobby flights
Bruxelles-National to Kansas City flights
Bruxelles-National to Detroit flights
Bruxelles-National to Denver flights
Bruxelles-National to Honolulu flights
Bruxelles-National to Anchorage flights
Bruxelles-National to George Bush Intcntl flights
Bruxelles-National to Raleigh flights
Bruxelles-National to Stewart flights
Bruxelles-National to Tampa flights
Charleroi Brussels to San Francisco flights
Bruxelles-National to Salt Lake City flights
Bruxelles-National to Cincinnati flights
Charleroi Brussels to Boston flights
Bruxelles-National to Austin flights
Bruxelles-National to Portland flights
Bruxelles-National to Charlotte flights
Bruxelles-National to Nashville flights
Bruxelles-National to Sky Harbor Intl flights
Charleroi Brussels to Atlanta flights

Top 3 airlines flying from Brussels to Illinois

Discover the top 3 airlines that operate flights from Brussels 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 June 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$576Average$704FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$579Average$696FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$592Average$771FlexibilityNo cancel feeOn-timeN/A

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