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$239+ Cheap flights from O'Hare Intl (ORD) 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BRU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Brussels are usually found in September or October, booked 64 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from O'Hare Intl to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 September 11, 2025.

Round-trip from

$393
(AirNGo)

One-way from

$245
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$547
From Chicago O'Hare Intl to Brussels
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One-way flight from Chicago O'Hare Intl to Brussels
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Highest demand for flights based on searches. 16% potential increase in price ($153 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from O'Hare Intl to Brussels

Cheapest flights from O'Hare Intl to Brussels
Explore the most affordable flight options available from O'Hare Intl to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/10. 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.
Tue 11/1810:30 amORD - BRU
2 stops21h 00mScandinavian Airlines
Sun 11/2310:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 9/10$412
This oojo deal was found by Cheapflights users on 9/10. 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.
Sat 11/156:30 pmORD - BRU
1 stop10h 25mIcelandair
Sun 11/2312:50 pmBRU - ORD
1 stop11h 30mIcelandair
Deal found 9/10$423
This Scandinavian Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 11/1510:30 amORD - BRU
2 stops16h 10mScandinavian Airlines
Wed 11/1910:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 9/10$428
This Scandinavian Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 10/2810:25 amORD - BRU
2 stops22h 05mScandinavian Airlines
Sun 11/26:55 pmBRU - ORD
2 stops28h 50mScandinavian Airlines
Deal found 9/9$442
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Tue 10/217:05 amORD - BRU
2 stops25h 15mScandinavian Airlines
Tue 10/288:30 pmBRU - ORD
1 stop30h 35mScandinavian Airlines
Deal found 9/9$444
This CrystalTravel deal was found by Cheapflights users on 9/9. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/177:20 pmORD - BRU
1 stop17h 30mScandinavian Airlines
Fri 11/2110:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 9/9$447
This CheapOair deal was found by Cheapflights users on 9/9. 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.
Tue 10/287:05 amORD - BRU
2 stops30h 45mScandinavian Airlines
Sat 11/18:30 pmBRU - ORD
1 stop27h 15mScandinavian Airlines
Deal found 9/9$450
This oojo deal was found by Cheapflights users on 9/9. 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.
Sat 11/18:20 pmORD - BRU
2 stops32h 30mScandinavian Airlines
Thu 11/68:30 pmBRU - ORD
1 stop27h 15mScandinavian Airlines
Deal found 9/9$455
This oojo deal was found by Cheapflights users on 9/10. 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 11/287:20 pmORD - BRU
2 stops33h 35mScandinavian Airlines
Sun 12/77:45 pmBRU - ORD
2 stops28h 00mScandinavian Airlines
Deal found 9/10$456
This Mytrip deal was found by Cheapflights users on 9/10. 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 11/33:35 pmORD - CRL
2 stops22h 25mMultiple Airlines
Tue 11/116:20 amCRL - ORD
2 stops20h 40mMultiple Airlines
Deal found 9/10$534
This Mytrip deal was found by Cheapflights users on 9/11. 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.
Tue 10/2110:40 amORD - CRL
2 stops28h 25mMultiple Airlines
Tue 10/289:25 pmCRL - ORD
2 stops28h 00mMultiple Airlines
Deal found 9/11$543
This Mytrip deal was found by Cheapflights users on 9/11. 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.
Sun 10/58:40 amORD - CRL
2 stops26h 05mMultiple Airlines
Tue 10/149:05 pmCRL - ORD
2 stops25h 50mMultiple Airlines
Deal found 9/11$608

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 September 11, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Brussels that are best for you.

Fly from

O'Hare Intl

Fly to

Brussels

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 11/15

10:30 am-9:40 am

2 stops16h 10m

Brussels Bruxelles-National

Wed 11/19

10:20 am-4:45 pm

1 stop13h 25m

$428

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 1/29

7:30 am-9:40 am

2 stops19h 10m

Brussels Bruxelles-National

Thu 2/5

7:20 pm-4:45 pm

2 stops28h 25m

$445

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/25

7:05 am-10:40 am

2 stops20h 35m

Brussels Bruxelles-National

Sat 11/1

10:20 am-5:45 pm

1 stop13h 25m

$465

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 10/21

7:05 am-9:40 am

2 stops19h 35m

Brussels Bruxelles-National

Tue 10/28

7:20 pm-9:05 pm

2 stops31h 45m

$470

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 3/1

7:20 pm-10:50 am

2 stops32h 30m

Brussels Bruxelles-National

Thu 3/5

10:20 am-4:45 pm

1 stop13h 25m

$524

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Mon 11/3

3:35 pm-9:00 pm

2 stops22h 25m

Charleroi Brussels

Tue 11/11

6:20 am-8:00 pm

2 stops20h 40m

$534

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 9/27

10:15 am-9:40 am

2 stops16h 25m

Brussels Bruxelles-National

Thu 10/2

7:10 pm-1:43 pm

2 stops49h 33m

$587

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 10/5

8:40 am-5:45 pm

2 stops26h 05m

Charleroi Brussels

Tue 10/14

9:05 pm-3:55 pm

2 stops25h 50m

$608

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Tue 9/30

4:15 pm-10:55 pm

2 stops23h 40m

Charleroi Brussels

Mon 10/6

6:30 pm-2:10 pm

2 stops26h 40m

$621

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 9/23

7:15 pm-6:20 pm

2 stops16h 05m

Brussels Bruxelles-National

Tue 10/14

8:55 pm-9:39 pm

2 stops31h 44m

$622

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 39 results
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Best time to book a flight from O'Hare Intl to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from O'Hare Intl 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 O'Hare Intl Airport to Brussels

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Brussels?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Brussels. Price data was last updated on August 29, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to Brussels is 64 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Brussels?

Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Brussels (average of $614). Flying from Chicago O'Hare Intl Airport to Brussels in June is currently the most expensive (average of $1,077). 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 ORD to BRU?

Find hourly flight availability from O'Hare Intl 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 September 11, 2025.

It’s optimal to fly from Chicago O'Hare Intl Airport to Brussels in the evening. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight in the afternoon.

Weekly flight availability from Chicago O'Hare Intl Airport to Brussels

Explore weekly flight availability from O'Hare Intl 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 September 11, 2025.

The most flights from ORD 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).

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 September 11, 2025.
Get a feel of what it's like to fly with Scandinavian Airlines, United Airlines, and Turkish Airlines from Chicago O'Hare Intl Airport to Brussels by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.
Scandinavian Airlines
7.4
Good
1,484 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.
United Airlines
7.4
Good
8,937 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.
Turkish Airlines
7.3
Good
3,968 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.
Aer Lingus
7.2
Good
1,271 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.
Icelandair
7.0
Good
546 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Brussels. 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 Chicago O'Hare Intl Airport to Brussels?

    There are many flights that can get you from Chicago O'Hare Intl Airport to Brussels in 16h 10m. Fly via Scandinavian Airlines to get the fastest option. The distance between Chicago O'Hare Intl Airport and Brussels is about 4145 mi.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Brussels round-trip?

    Flying on Scandinavian Airlines is currently your cheapest option to Brussels, with prices starting at $312. Additional round-trip tickets that might be worth considering are offered by Icelandair and Turkish Airlines, with the lowest prices starting at $405 and $492, respectively. Scandinavian Airlines is priced at 60% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Brussels?

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to Brussels are Air Canada (28%), Austrian Airlines (28%) and Brussels Airlines (28%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Brussels?

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Brussels? While on average our users pay $2,391, our data indicates the cheapest price to be $536. The most popular route (Chicago O'Hare Intl - Brussels Bruxelles-National), is priced around $393.

  • Can I find deals for flights from O'Hare Intl to Brussels that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Brussels flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Brussels?

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

  • Can I find deals for business class flights from O'Hare Intl to Brussels?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 O'Hare Intl Airport to Brussels?

    Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Brussels (average of $614). Flying from Chicago O'Hare Intl Airport to Brussels in June is currently the most expensive (average of $1,077). 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 O'Hare Intl to Brussels

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Bruxelles-National flights
Midway to Bruxelles-National flights
O'Hare Intl to Charleroi Brussels flights

Top 8 airlines flying from O'Hare Intl to Brussels

Discover the top 8 airlines that operate flights from O'Hare Intl 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$312Average$493FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$405Average$561FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$492Average$811FlexibilityNo cancel feeOn-time77%
KLMCheapest$506Average$828FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$536Average$779FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$542Average$890FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$590Average$1,035FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$728Average$1,110FlexibilityNo cancel feeOn-time76%

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