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Bruxelles-National

$256+ Cheap flights from Illinois to Bruxelles-National (BRU)

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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BRU
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
1 adult, Economy
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Cheap flight deals from Illinois to Bruxelles-National

Keep the following information in mind while searching for Illinois to Bruxelles-National flight deals. Data was last updated January 19, 2026.

Round-trip from

$391
(oojo)

One-way from

$256
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$669

Good round-trip deal

$936 or less

Good one-way deal

$668 or less
From Illinois to Brussels Bruxelles-National
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One-way flight from Illinois to Brussels Bruxelles-National
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Highest demand for flights based on searches. 30% potential increase in price ($351 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Illinois to Brussels Bruxelles-National.
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Price to beat on a one-way flight from Illinois to Brussels Bruxelles-National.
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Find flight deals from Illinois to Bruxelles-National

Cheapest flights from Illinois to Bruxelles-National
Explore the most affordable flight options available from Illinois to Bruxelles-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 19, 2026.

This oojo deal was found by Cheapflights users on 1/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:25 pm
ORD
-
BRU
1 stop10h 30m
Icelandair
Sun 4/191:50 pm
BRU
-
ORD
1 stop14h 35m
Icelandair
Deal found 1/17$391
This oojo deal was found by Cheapflights users on 1/18. 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.
Thu 2/56:30 pm
ORD
-
BRU
1 stop10h 25m
Icelandair
Thu 2/1212:50 pm
BRU
-
ORD
1 stop11h 30m
Icelandair
Deal found 1/18$392
This FlightHub deal was found by Cheapflights users on 1/19. 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.
Sun 4/127:25 pm
ORD
-
BRU
1 stop10h 30m
Icelandair
Fri 4/171:50 pm
BRU
-
ORD
1 stop14h 35m
Icelandair
Deal found 1/19$396
This oojo deal was found by Cheapflights users on 1/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:25 pm
ORD
-
BRU
1 stop10h 30m
Icelandair
Wed 5/61:50 pm
BRU
-
ORD
1 stop11h 25m
Icelandair
Deal found 1/16$399
This oojo deal was found by Cheapflights users on 1/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:25 pm
ORD
-
BRU
1 stop10h 30m
Icelandair
Mon 5/181:50 pm
BRU
-
ORD
1 stop11h 25m
Icelandair
Deal found 1/17$407
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
Thu 4/97:25 pm
ORD
-
BRU
1 stop10h 30m
Icelandair
Thu 4/161:50 pm
BRU
-
ORD
1 stop11h 25m
Icelandair
Deal found 1/19$417
This KAYAK deal was found by Cheapflights users on 1/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:25 pm
ORD
-
BRU
1 stop10h 30m
Icelandair
Fri 4/171:50 pm
BRU
-
ORD
1 stop11h 25m
Icelandair
Deal found 1/19$418
This KAYAK deal was found by Cheapflights users on 1/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1010:25 pm
ORD
-
BRU
1 stop31h 30m
Icelandair
Fri 4/171:50 pm
BRU
-
ORD
1 stop11h 25m
Icelandair
Deal found 1/19$420
This Flighttix deal was found by Cheapflights users on 1/17. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/258:05 am
STL
-
BRU
2 stops16h 45m
Air Canada
Tue 2/310:00 am
BRU
-
STL
2 stops36h 15m
Air Canada
Deal found 1/17$430
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Wed 3/188:30 am
STL
-
BRU
1 stop16h 45m
United Airlines
Wed 3/2510:00 am
BRU
-
STL
2 stops34h 42m
United Airlines
Deal found 1/18$438
This United Airlines deal was found by Cheapflights users on 1/17. 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.
Sun 1/2511:20 am
STL
-
BRU
1 stop14h 35m
United Airlines
Tue 2/311:15 am
BRU
-
STL
1 stop13h 03m
United Airlines
Deal found 1/17$449
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Sun 4/1211:15 am
STL
-
BRU
1 stop14h 45m
United Airlines
Tue 4/219:40 am
BRU
-
STL
1 stop12h 44m
United Airlines
Deal found 1/19$456

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Bruxelles-National 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 January 19, 2026.
Use the filters below to find and compare flights from Illinois to Brussels Bruxelles-National Airport that are best for you.

Fly from

Illinois

Fly to

Bruxelles-National

Route

Depart

Return

Price

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Tue 3/3

9:55 am-8:55 am

1 stop16h 00m

Brussels Bruxelles-National

Tue 3/10

10:00 am-2:42 pm

2 stops34h 42m

$438

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 3/18

8:30 am-7:15 am

1 stop16h 45m

Brussels Bruxelles-National

Wed 3/25

10:00 am-2:42 pm

2 stops34h 42m

$438

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Tue 4/14

7:45 am-7:10 am

2 stops16h 25m

Brussels Bruxelles-National

Tue 4/21

9:40 am-3:24 pm

1 stop12h 44m

$459

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 3/5

7:41 am-8:55 am

1 stop18h 14m

Brussels Bruxelles-National

Thu 3/12

10:00 am-2:43 pm

2 stops34h 43m

$463

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Mon 4/13

9:10 am-7:50 am

2 stops15h 40m

Brussels Bruxelles-National

Tue 4/21

9:25 am-9:08 pm

2 stops18h 43m

$469

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 4/13

7:15 pm-6:30 pm

1 stop16h 15m

Brussels Bruxelles-National

Wed 4/22

5:45 am-4:10 pm

1 stop17h 25m

$471

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Fri 3/20

4:05 pm-4:15 pm

2 stops18h 10m

Brussels Bruxelles-National

Wed 3/25

10:00 am-2:42 pm

2 stops34h 42m

$474

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 3/4

7:20 pm-7:50 pm

1 stop17h 30m

Brussels Bruxelles-National

Tue 3/10

11:30 am-5:45 pm

2 stops36h 15m

$476

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 1/29

8:05 am-8:55 am

1 stop17h 50m

Brussels Bruxelles-National

Tue 2/3

10:00 am-2:30 pm

2 stops35h 30m

$488

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 2/20

7:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Mon 3/2

10:20 am-4:45 pm

1 stop13h 25m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 47 results
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Best time to book a flight from Illinois to Bruxelles-National

Have a flexible travel schedule? Discover the best time to fly to Bruxelles-National 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 Brussels Bruxelles-National Airport

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Brussels Bruxelles-National Airport (average of $293). Flying from Illinois to Brussels Bruxelles-National Airport in April is currently the most expensive (average of $539). 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 BRU?

Find hourly flight availability from Illinois to Bruxelles-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 19, 2026.

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

Weekly flight availability from Illinois to Brussels Bruxelles-National Airport

Explore weekly flight availability from Illinois to Bruxelles-National. 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 January 19, 2026.

The most flights from USIL to BRU 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).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Bruxelles-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Brussels Bruxelles-National Airport?

    Icelandair, United Airlines, and Delta can get you from Illinois to Brussels Bruxelles-National Airport in just under 10h 30m. Your travel time can differ by up to 6h 15m. The distance between Illinois and Brussels Bruxelles-National Airport is about 4145 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The most popular route from Illinois to Brussels Bruxelles-National Airport is Chicago O'Hare Intl - Brussels Bruxelles-National. You may also consider Chicago Midway - Brussels Bruxelles-National or Lambert-St Louis - Brussels Bruxelles-National.

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

    No one likes to see their flight delayed. When booking a flight from Illinois to Brussels Bruxelles-National Airport consider choosing Air Canada (27%), Austrian Airlines (27%) or Brussels Airlines (27%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Illinois to Brussels Bruxelles-National Airport is generally $1,220, our data shows the cheapest flight currently is $476. When looking at the most popular route, (Chicago O'Hare Intl - Brussels Bruxelles-National), you can expect to pay $398 for that flight.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Illinois to Brussels Bruxelles-National Airport (average of $293). Flying from Illinois to Brussels Bruxelles-National Airport in April is currently the most expensive (average of $539). 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

Traveling to a place near Brussels Bruxelles-National Airport?

Book flights to Brussels Bruxelles-National Airport if you plan to visit one of these locations
Mons
Hasselt
Charleroi
Mechelen
Zaventem

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Alternative routes for Illinois to Bruxelles-National

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Bruxelles-National flights
Newark to Bruxelles-National flights
Dulles Intl to Bruxelles-National flights
LaGuardia to Bruxelles-National flights
O'Hare Intl to Bruxelles-National flights
Reagan-National to Bruxelles-National flights
Baltimore to Bruxelles-National flights
Boston to Bruxelles-National flights
Seattle to Bruxelles-National flights
Los Angeles to Bruxelles-National flights
Atlanta to Bruxelles-National flights
Dallas/Fort Worth to Bruxelles-National flights
San Francisco to Bruxelles-National flights
John F Kennedy Intl to Charleroi Brussels flights
Miami to Bruxelles-National flights
Hobby to Bruxelles-National flights
Newark to Charleroi Brussels flights
Charlotte to Bruxelles-National flights
Philadelphia to Bruxelles-National flights
Dulles Intl to Charleroi Brussels flights
Denver to Bruxelles-National flights
Orlando to Bruxelles-National flights
Santa Ana to Bruxelles-National flights
Ontario to Bruxelles-National flights
Midway to Bruxelles-National flights
George Bush Intcntl to Bruxelles-National flights
Love Field to Bruxelles-National flights
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Raleigh to Bruxelles-National flights
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Cincinnati to Bruxelles-National flights
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O'Hare Intl to Charleroi Brussels flights
Columbus to Bruxelles-National flights
Boston to Charleroi Brussels flights
Los Angeles to Charleroi Brussels flights
Austin to Bruxelles-National flights
Charleston to Bruxelles-National flights
Richmond to Bruxelles-National flights
Nashville to Bruxelles-National flights
Kansas City to Bruxelles-National flights
St. Louis to Bruxelles-National flights
Fort Lauderdale to Bruxelles-National flights

Top 8 airlines flying from Illinois to Bruxelles-National

Discover the top 8 airlines that operate flights from Illinois to Bruxelles-National. 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 January 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$293Average$482FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$428Average$610FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$445Average$463FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$492Average$675FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$531Average$677FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$551Average$692FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$589Average$1,041FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$752Average$1,745FlexibilityNo cancel feeOn-timeN/A

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