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$305+ Cheap flights from Illinois to Brussels

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BRU
ene. 26 — feb. 21
dom. 1/26
dom. 2/2
1 adult, Economy
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Cheap flight deals from Illinois to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Brussels (BR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 21, 2025.

Round-trip from

$459
(oojo)

One-way from

$305
(Kiwi.com)
From Illinois to Brussels
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One-way flight from Illinois to Brussels
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Find flight deals from Illinois to Brussels

Cheapest flights from Illinois to Brussels
Explore the most affordable flight options available from Illinois to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2025.

This oojo deal was found by Cheapflights users on 1/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/237:30 pmORD - BRU
1 stop10h 20mIcelandair
mié. 5/71:50 pmBRU - ORD
1 stop14h 25mIcelandair
Deal found 1/21$427
This oojo deal was found by Cheapflights users on 1/20. 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.
lun. 3/37:40 pmORD - BRU
1 stop12h 30mScandinavian Airlines
lun. 3/1010:30 amBRU - ORD
1 stop14h 20mScandinavian Airlines
Deal found 1/20$459
This oojo deal was found by Cheapflights users on 1/20. 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.
sáb. 5/36:15 pmORD - BRU
1 stop13h 50mTAP AIR PORTUGAL
dom. 5/115:55 amBRU - ORD
1 stop17h 15mTAP AIR PORTUGAL
Deal found 1/20$513
This oojo deal was found by Cheapflights users on 1/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/1212:55 pmORD - BRU
1 stop27h 05mTurkish Airlines
mié. 3/197:50 amBRU - ORD
1 stop33h 20mTurkish Airlines
Deal found 1/21$532
This United deal was found by Cheapflights users on 1/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 1/2811:28 amSTL - BRU
1 stop13h 37mUnited Airlines
vie. 2/710:00 amBRU - STL
2 stops38h 22mUnited Airlines
Deal found 1/20$587
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/35:15 amORD - BRU
2 stops22h 45mMultiple Airlines
lun. 3/106:00 amBRU - ORD
2 stops31h 44mMultiple Airlines
Deal found 1/20$588
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 1/2811:30 amSTL - BRU
2 stops13h 25mAir Canada
vie. 2/710:00 amBRU - STL
2 stops36h 06mAir Canada
Deal found 1/20$606
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/177:05 pmORD - CRL
2 stops17h 40mMultiple Airlines
lun. 2/243:45 pmCRL - ORD
2 stops31h 30mMultiple Airlines
Deal found 1/20$619
This Gotogate deal was found by Cheapflights users on 1/20. 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.
lun. 3/33:50 pmSTL - BRU
2 stops33h 05mMultiple Airlines
lun. 3/102:40 pmBRU - STL
2 stops38h 52mMultiple Airlines
Deal found 1/20$624
This Scandinavian Airlines deal was found by Cheapflights users on 1/21. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 1/2612:52 pmSTL - BRU
2 stops23h 58mScandinavian Airlines
lun. 2/310:30 amBRU - STL
2 stops20h 06mScandinavian Airlines
Deal found 1/21$739
This Virgin Atlantic deal was found by Cheapflights users on 1/21. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/169:54 amMDW - BRU
2 stops17h 06mVirgin Atlantic
mar. 3/2511:00 amBRU - MDW
2 stops17h 20mVirgin Atlantic
Deal found 1/21$804
This KAYAK deal was found by Cheapflights users on 1/20. 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.
jue. 3/208:25 amSTL - BRU
1 stop16h 50mLufthansa
jue. 4/37:30 pmBRU - STL
1 stop25h 00mLufthansa
Deal found 1/20$818

Find flights from Illinois to Brussels within your budget

Customize your flight search to find flights from Illinois to Brussels 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 enero 21, 2025.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mié. 4/23

7:30 pm-12:50 pm

1 stop10h 20m

Brussels Bruxelles-National

mié. 5/7

1:50 pm-9:15 pm

1 stop14h 25m

$427

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

lun. 3/3

7:40 pm-3:10 pm

1 stop12h 30m

Brussels Bruxelles-National

lun. 3/10

10:30 am-6:50 pm

1 stop14h 20m

$459

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

sáb. 5/3

6:15 pm-3:05 pm

1 stop13h 50m

Brussels Bruxelles-National

dom. 5/11

5:55 am-4:10 pm

1 stop17h 15m

$513

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mié. 3/12

12:55 pm-10:00 pm

1 stop27h 05m

Brussels Bruxelles-National

mié. 3/19

7:50 am-11:10 am

1 stop33h 20m

$532

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

lun. 3/3

5:15 am-11:00 am

2 stops22h 45m

Brussels Bruxelles-National

lun. 3/10

6:00 am-7:44 am

2 stops31h 44m

$588

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

lun. 3/3

3:50 pm-7:55 am

2 stops33h 05m

Brussels Bruxelles-National

lun. 3/10

2:40 pm-11:32 pm

2 stops38h 52m

$624

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

dom. 2/2

8:00 am-7:55 am

2 stops16h 55m

Brussels Bruxelles-National

lun. 2/10

4:55 pm-8:43 pm

2 stops34h 48m

$632

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

jue. 3/20

3:50 pm-7:55 am

2 stops34h 05m

Brussels Bruxelles-National

jue. 4/3

10:00 am-2:59 pm

2 stops35h 59m

$658

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

mié. 2/5

3:35 pm-9:40 pm

2 stops23h 05m

Charleroi Brussels

dom. 2/9

3:10 pm-2:05 pm

2 stops29h 55m

$660

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

dom. 3/16

9:50 am-7:55 am

2 stops16h 05m

Brussels Bruxelles-National

mar. 3/25

10:00 am-7:57 am

1 stop27h 57m

$753

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 40 results
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Best time to book a flight from Illinois to Brussels

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

Travel insights for flights from Illinois to Brussels

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

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Brussels (average of $614). Flying from Illinois to Brussels in June is currently the most expensive (average of $1,146). 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 Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 21, 2025.

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

Weekly flight availability from Illinois to Brussels

Explore weekly flight availability from Illinois to Brussels. 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 enero 21, 2025.

The most flights from USIL to BR1 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 Brussels by month

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

In terms of precipitation, rainfall in Brussels ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. August is typically the driest time to visit Brussels when rainfall is around 1.6 in.

Temperature in Brussels by month

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

If weather is an important factor for your trip to Brussels, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. 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 Brussels. Reviews last updated enero 21, 2025.
Get a feel of what it's like to fly with United Airlines, KLM and Scandinavian Airlines from Illinois to Brussels by reading reviews from past customers. 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
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
665 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,490 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Brussels. 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 Illinois to Brussels one-way?

    For one-way options, check prices for Scandinavian Airlines. According to our data, you can fly for as low as $363. Users have also found prices from $392 and $443 on Icelandair and Aer Lingus, respectively.

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

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

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

    Consider Air Canada (52%), Austrian Airlines (52%) or Brussels Airlines (52%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Brussels.

  • What are the cheapest flights from Illinois to Brussels?

    Looking at all options, your cheapest flight can be booked for $597. While the most popular route (Chicago O'Hare Intl - Brussels Bruxelles-National) can be booked for $429 on average our data indicates $1,112 when flying from Illinois to Brussels.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Brussels 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?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Brussels (average of $614). Flying from Illinois to Brussels in June is currently the most expensive (average of $1,146). 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.

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Alternative routes for Illinois to Brussels

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Bruxelles-National flights
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O'Hare Intl to Bruxelles-National flights
LaGuardia to Bruxelles-National flights
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Baltimore to Bruxelles-National flights
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San Francisco to Bruxelles-National flights
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John F Kennedy Intl to Charleroi Brussels flights
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Dulles Intl to Charleroi Brussels flights
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Pittsburgh to Bruxelles-National flights
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Ontario to Bruxelles-National flights
Sky Harbor Intl to Bruxelles-National flights
Des Moines to Bruxelles-National flights
Miami to Charleroi Brussels flights
St. Louis to Bruxelles-National flights
Santa Ana to Bruxelles-National flights

Top 9 airlines flying from Illinois to Brussels

Discover the top 9 airlines that operate flights from Illinois to Brussels. 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 enero 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$405Average$582FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$438Average$574FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$518Average$850FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$540Average$707FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$543Average$634FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$600Average$952FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$632Average$1,125FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$686Average$1,045FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$813Average$1,409FlexibilityNo cancel feeOn-timeN/A
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