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$357+ Cheap flights from Bruxelles-National (BRU) 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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — ORD
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
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Cheap flight deals from Bruxelles-National to Illinois

Keep the following information in mind while searching for Bruxelles-National to Illinois flight deals. Data was last updated March 3, 2025.

Round-trip from

$505
(Finnair)

One-way from

$357
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$629

Good round-trip deal

$683 or less

Good one-way deal

$584 or less
From Brussels Bruxelles-National to Illinois
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One-way flight from Brussels Bruxelles-National to Illinois
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Highest demand for flights based on searches. 14% potential increase in price ($110 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Brussels Bruxelles-National to Illinois.
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Price to beat on a one-way flight from Brussels Bruxelles-National to Illinois.
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Find flight deals from Bruxelles-National to Illinois

Cheapest flights from Bruxelles-National to Illinois
Explore the most affordable flight options available from Bruxelles-National to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2025.

This Finnair deal was found by Cheapflights users on 3/2. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/711:40 amBRU - STL
2 stops17h 12mMultiple Airlines
Thu 5/155:00 amSTL - BRU
2 stops30h 20mMultiple Airlines
Deal found 3/2$505
This FlightHub deal was found by Cheapflights users on 3/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2410:20 amBRU - ORD
1 stop12h 50mScandinavian Airlines
Fri 5/167:15 pmORD - BRU
1 stop31h 25mScandinavian Airlines
Deal found 3/3$511
This Expedia deal was found by Cheapflights users on 3/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/310:50 amBRU - STL
2 stops18h 28mBritish Airways
Mon 4/710:17 amSTL - BRU
2 stops21h 03mBritish Airways
Deal found 3/3$514
This American Airlines deal was found by Cheapflights users on 3/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/37:05 amBRU - ORD
1 stop14h 10mAmerican Airlines
Wed 5/75:40 pmORD - BRU
1 stop14h 40mAmerican Airlines
Deal found 3/2$519
This British Airways deal was found by Cheapflights users on 3/3. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1710:30 pmBRU - ORD
1 stop22h 20mBritish Airways
Thu 4/2410:20 pmORD - BRU
1 stop13h 30mBritish Airways
Deal found 3/3$520
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/310:50 amBRU - STL
2 stops16h 51mAmerican Airlines
Mon 4/73:29 pmSTL - BRU
2 stops15h 51mAmerican Airlines
Deal found 3/3$521
This ITA Airways deal was found by Cheapflights users on 3/3. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:55 pmBRU - ORD
1 stop25h 15mITA Airways
Sat 9/203:00 pmORD - BRU
1 stop20h 00mITA Airways
Deal found 3/3$525
This Finnair deal was found by Cheapflights users on 3/3. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/37:05 pmBRU - ORD
1 stop29h 45mFinnair
Sat 5/2410:25 pmORD - BRU
2 stops41h 10mFinnair
Deal found 3/3$542
This Expedia deal was found by Cheapflights users on 3/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:30 amBRU - ORD
1 stop11h 25mLufthansa
Sun 10/265:55 pmORD - BRU
Nonstop8h 00mLufthansa
Deal found 3/3$570
This Flysmarter deal was found by Cheapflights users on 3/3. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:00 amBRU - ORD
2 stops14h 50mAir Canada
Wed 12/34:00 pmORD - BRU
2 stops15h 05mAir Canada
Deal found 3/3$571
This United Airlines deal was found by Cheapflights users on 3/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/610:00 amBRU - STL
1 stop16h 58mUnited Airlines
Wed 5/141:30 pmSTL - BRU
1 stop11h 35mUnited Airlines
Deal found 3/2$572
This Flysmarter deal was found by Cheapflights users on 3/3. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:15 amBRU - ORD
Nonstop8h 50mMultiple Airlines
Wed 12/34:10 pmORD - BRU
1 stop10h 50mMultiple Airlines
Deal found 3/3$574

Find flights from Bruxelles-National to Illinois within your budget

Customize your flight search to find flights from Bruxelles-National 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 March 3, 2025.

Fly from

Bruxelles-National

Fly to

Illinois

Route

Depart

Return

Price

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 5/7

11:40 am-9:52 pm

2 stops17h 12m

Lambert-St Louis

Thu 5/15

5:00 am-6:20 pm

2 stops30h 20m

$505

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 4/24

10:20 am-4:10 pm

1 stop12h 50m

Chicago O'Hare Intl

Fri 5/16

7:15 pm-9:40 am

1 stop31h 25m

$511

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Thu 4/3

10:50 am-10:18 pm

2 stops18h 28m

Lambert-St Louis

Mon 4/7

10:17 am-2:20 pm

2 stops21h 03m

$514

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sat 5/3

7:05 am-2:15 pm

1 stop14h 10m

Chicago O'Hare Intl

Wed 5/7

5:40 pm-3:20 pm

1 stop14h 40m

$519

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 4/17

10:30 pm-1:50 pm

1 stop22h 20m

Chicago O'Hare Intl

Thu 4/24

10:20 pm-6:50 pm

1 stop13h 30m

$520

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Thu 4/3

10:50 am-8:41 pm

2 stops16h 51m

Lambert-St Louis

Mon 4/7

3:29 pm-2:20 pm

2 stops15h 51m

$521

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sat 5/3

7:05 pm-5:50 pm

1 stop29h 45m

Chicago O'Hare Intl

Sat 5/24

10:25 pm-10:35 pm

2 stops41h 10m

$542

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Tue 5/6

10:00 am-7:58 pm

1 stop16h 58m

Lambert-St Louis

Wed 5/14

1:30 pm-8:05 am

1 stop11h 35m

$572

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Tue 4/22

7:00 am-10:06 pm

2 stops22h 06m

Chicago O'Hare Intl

Wed 5/21

10:40 am-8:05 am

1 stop14h 25m

$577

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Wed 5/14

10:15 am-12:00 pm

Nonstop8h 45m

Chicago O'Hare Intl

Sun 6/1

9:40 pm-4:15 pm

1 stop11h 35m

$578

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

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

Have a flexible travel schedule? Discover the best time to fly to Illinois from Bruxelles-National 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 Bruxelles-National to Illinois

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

What is the cheapest month to book a flight from Brussels Bruxelles-National Airport to Illinois?

Currently, August is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Illinois (average of $245). Flying from Brussels Bruxelles-National Airport to Illinois in March is currently the most expensive (average of $322). 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 Bruxelles-National 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 March 3, 2025.

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

Weekly flight availability from Brussels Bruxelles-National Airport to Illinois

Explore weekly flight availability from Bruxelles-National 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 March 3, 2025.

The most flights from BRU 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 March 3, 2025.
Read reviews from past customers who have flown Delta, KLM and LOT from Brussels to Illinois. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

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
8,068 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

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
1,323 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

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
1,067 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

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
8,068 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

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
7.6
Good
768 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

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 Bruxelles-National 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 Bruxelles-National Airport to Illinois one-way?

    One-way options have recently been found by users for as low as $417 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include British Airways from $482 and Aer Lingus from $495 one-way.

  • What are the most popular routes from Brussels Bruxelles-National Airport to Illinois?

    The most popular flight routes from Brussels Bruxelles-National Airport to Illinois are Brussels Bruxelles-National - Chicago O'Hare Intl, Brussels Bruxelles-National - Chicago Midway and Brussels Bruxelles-National - Lambert-St Louis.

  • What are the most reliable airlines from Brussels Bruxelles-National Airport to Illinois?

    Before booking your flight to Illinois from Brussels Bruxelles-National Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (82%), Austrian Airlines (82%), Brussels Airlines( 82%).

  • What are the cheapest flights from Brussels Bruxelles-National Airport to Illinois?

    Looking at all options, your cheapest flight can be booked for $575. While the most popular route (Brussels Bruxelles-National - Chicago O'Hare Intl) can be booked for $449 on average our data indicates $721 when flying from Brussels Bruxelles-National Airport to Illinois.

  • Can I find deals for flights from Bruxelles-National to Illinois that include hotel bookings?

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

  • How can I find direct flights from Bruxelles-National to Illinois?

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

  • Can I find deals for business class flights from Bruxelles-National to Illinois?

    Yes. Cheapflights offers flight deals from Bruxelles-National 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 Bruxelles-National Airport to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Illinois (average of $245). Flying from Brussels Bruxelles-National Airport to Illinois in March is currently the most expensive (average of $322). 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 Bruxelles-National to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Charleroi Brussels to Dulles Intl flights
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Charleroi Brussels to Miami flights

Top 4 airlines flying from Bruxelles-National to Illinois

Discover the top 4 airlines that operate flights from Bruxelles-National 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 March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$462Average$483FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$590Average$745FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$592Average$849FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$656Average$797FlexibilityNo cancel feeOn-time69%
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