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$301+ Cheap flights from Chicago (CHI) 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BRU
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Brussels are usually found in October or February, booked 87 days in advance, depart on a Monday or Wednesday and return on a Friday

Cheap flight deals from Chicago to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 April 24, 2025.

Round-trip from

$661
(Mytrip)

One-way from

$301
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$610
From Chicago (CHI) to Brussels
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One-way flight from Chicago (CHI) to Brussels
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Highest demand for flights based on searches. 24% potential increase in price ($279 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Chicago to Brussels

Cheapest flights from Chicago to Brussels
Explore the most affordable flight options available from Chicago to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This oojo deal was found by Cheapflights users on 4/23. 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.
Sun 9/147:15 pmORD - BRU
1 stop17h 35mScandinavian Airlines
Wed 10/18:30 pmBRU - ORD
1 stop26h 40mScandinavian Airlines
Deal found 4/23$344
This FlightHub deal was found by Cheapflights users on 4/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:45 pmORD - BRU
1 stop30h 40mTurkish Airlines
Sun 10/126:50 pmBRU - ORD
1 stop34h 10mTurkish Airlines
Deal found 4/22$561
This Iberia deal was found by Cheapflights users on 4/22. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:15 pmORD - BRU
1 stop12h 00mBritish Airways
Thu 10/910:50 amBRU - ORD
1 stop14h 25mBritish Airways
Deal found 4/22$582
This Iberia deal was found by Cheapflights users on 4/21. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/39:15 pmORD - BRU
1 stop13h 30mMultiple Airlines
Tue 6/1012:05 pmBRU - ORD
1 stop13h 45mMultiple Airlines
Deal found 4/21$633
This Mytrip deal was found by Cheapflights users on 4/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/122:00 pmORD - CRL
2 stops21h 25mMultiple Airlines
Tue 5/206:50 pmCRL - ORD
2 stops31h 40mMultiple Airlines
Deal found 4/21$721
This Delta deal was found by Cheapflights users on 4/23. 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.
Tue 12/21:00 pmMDW - BRU
2 stops18h 15mDelta
Fri 12/1210:45 amBRU - MDW
2 stops14h 51mDelta
Deal found 4/23$853
This Virgin Atlantic deal was found by Cheapflights users on 4/22. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:30 amMDW - BRU
2 stops16h 30mVirgin Atlantic
Sat 12/611:00 amBRU - MDW
2 stops17h 44mVirgin Atlantic
Deal found 4/22$859
This KLM deal was found by Cheapflights users on 4/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/51:05 pmMDW - BRU
1 stop12h 25mKLM
Wed 8/1310:45 amBRU - MDW
1 stop18h 02mKLM
Deal found 4/22$954
This Mytrip deal was found by Cheapflights users on 4/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/229:40 amMDW - BRU
2 stops15h 10mMultiple Airlines
Thu 5/291:30 pmBRU - MDW
3 stops34h 24mMultiple Airlines
Deal found 4/22$1,027

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago 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 April 24, 2025.
Use the filters below to find and compare flights from Chicago to Brussels that are best for you.

Fly from

Chicago

Fly to

Brussels

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 9/14

7:15 pm-7:50 pm

1 stop17h 35m

Brussels Bruxelles-National

Wed 10/1

8:30 pm-4:10 pm

1 stop26h 40m

$344

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 10/1

11:45 pm-1:25 pm

1 stop30h 40m

Brussels Bruxelles-National

Sun 10/12

6:50 pm-10:00 pm

1 stop34h 10m

$561

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 9/21

7:15 pm-2:15 pm

1 stop12h 00m

Brussels Bruxelles-National

Thu 10/9

10:50 am-6:15 pm

1 stop14h 25m

$582

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 6/3

9:15 pm-5:45 pm

1 stop13h 30m

Brussels Bruxelles-National

Tue 6/10

12:05 pm-6:50 pm

1 stop13h 45m

$633

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 6/3

8:30 pm-2:25 pm

1 stop10h 55m

Brussels Bruxelles-National

Tue 6/10

10:55 am-8:09 pm

2 stops16h 14m

$657

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Mon 5/12

2:00 pm-6:25 pm

2 stops21h 25m

Charleroi Brussels

Tue 5/20

6:50 pm-7:30 pm

2 stops31h 40m

$721

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Tue 8/5

1:05 pm-8:30 am

1 stop12h 25m

Brussels Bruxelles-National

Wed 8/13

10:45 am-9:47 pm

1 stop18h 02m

$954

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 9/14

9:20 am-8:40 am

2 stops16h 20m

Brussels Bruxelles-National

Wed 10/1

10:45 am-9:44 pm

1 stop17h 59m

$958

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Mon 8/4

1:00 pm-8:45 am

2 stops12h 45m

Brussels Bruxelles-National

Tue 8/12

10:45 am-9:47 pm

2 stops18h 02m

$1,024

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Thu 5/22

9:40 am-7:50 am

2 stops15h 10m

Brussels Bruxelles-National

Thu 5/29

1:30 pm-4:54 pm

3 stops34h 24m

$1,027

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 27 results
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Best time to book a flight from Chicago to Brussels

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

How far ahead should I book a flight from Chicago to Brussels?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Brussels. Price data was last updated on April 18, 2025.

Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Brussels. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Chicago to Brussels (average of $614). Flying from Chicago 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 CHI to BRU?

Find hourly flight availability from Chicago 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 April 24, 2025.

It’s typically best to fly out from Chicago to Brussels in the evening. Doing so could potentially save you 49% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Chicago to Brussels?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Brussels. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago to Brussels flight should consider departing on Monday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to Brussels

Explore weekly flight availability from Chicago 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 April 24, 2025.

The most flights from CHI to BR1 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).

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 April 24, 2025.
Read reviews from past customers who have flown Delta, KLM and LOT from Chicago to Brussels. 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
7,920 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,920 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LOT
7.6
Good
1,066 reviews
Delta
8.0
Very good
7,920 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,582 reviews
Delta
8.0
Very good
7,920 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 Chicago 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 flying from Chicago to Brussels round-trip?

    According to our current data, Scandinavian Airlines ($661), British Airways ($860), and Aer Lingus ($899) offers the cheapest pricing from Chicago to Brussels. You may be able to fly from Chicago to Brussels for 22% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Chicago to Brussels one-way?

    The cheapest airline one-way is Scandinavian Airlines, with whom users have recently found tickets for as low as $369. However, be on the lookout for offers from TAP AIR PORTUGAL and Aer Lingus, as they are both options that can get you from Chicago to Brussels for a low price.

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

    When deciding which route to take from Chicago to Brussels consider Chicago O'Hare Intl - Brussels Bruxelles-National, Chicago Midway - Brussels Bruxelles-National or Chicago O'Hare Intl - Charleroi Brussels as they are the most popular.

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

    Consider SWISS (81%), Air Canada (78%) or Austrian Airlines (78%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Brussels.

  • What are the cheapest flights from Chicago to Brussels?

    Looking for the cheapest flight from Chicago to Brussels? While on average our users pay $2,865, our data indicates the cheapest price to be $597. The most popular route (Chicago O'Hare Intl - Brussels Bruxelles-National), is priced around $461.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Chicago to Brussels (average of $614). Flying from Chicago 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 8 airlines flying from Chicago to Brussels

Discover the top 8 airlines that operate flights from Chicago 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$397Average$550FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$405Average$579FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$492Average$811FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$512Average$715FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$518Average$869FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$724Average$1,099FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$754Average$1,056FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$813Average$1,325FlexibilityNo cancel feeOn-timeN/A

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