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$357+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BRU
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Brussels are usually found in October or September, booked 36 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap 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 December 9, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:30 pmORD - BRU
1 stop10h 25mIcelandair
Sun 2/1512:50 pmBRU - ORD
1 stop11h 30mIcelandair
Deal found 12/9$661
This CrystalTravel deal was found by Cheapflights users on 12/7. 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.
Sun 12/287:20 pmORD - BRU
1 stop12h 10mScandinavian Airlines
Sun 1/116:55 pmBRU - ORD
2 stops28h 50mScandinavian Airlines
Deal found 12/7$700
This oojo deal was found by Cheapflights users on 12/7. 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.
Mon 12/87:20 pmORD - BRU
1 stop12h 10mScandinavian Airlines
Mon 12/1510:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 12/7$707
This KAYAK deal was found by Cheapflights users on 12/7. 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.
Wed 12/317:20 pmORD - BRU
1 stop12h 10mScandinavian Airlines
Sun 1/113:10 pmBRU - ORD
1 stop32h 35mScandinavian Airlines
Deal found 12/7$715
This CrystalTravel deal was found by Cheapflights users on 12/7. 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.
Fri 12/267:20 pmORD - BRU
2 stops33h 35mScandinavian Airlines
Fri 1/3010:20 amBRU - ORD
1 stop13h 35mScandinavian Airlines
Deal found 12/7$746
This KAYAK deal was found by Cheapflights users on 12/7. 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.
Wed 12/317:20 pmORD - BRU
1 stop12h 10mScandinavian Airlines
Sat 1/103:10 pmBRU - ORD
1 stop32h 45mScandinavian Airlines
Deal found 12/7$755
This FlightHub deal was found by Cheapflights users on 12/7. 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.
Sat 12/277:20 pmORD - BRU
2 stops32h 30mScandinavian Airlines
Sun 1/116:55 pmBRU - ORD
2 stops28h 50mScandinavian Airlines
Deal found 12/7$783
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Wed 12/313:50 pmORD - CRL
1 stop17h 05mMultiple Airlines
Fri 1/91:00 pmCRL - ORD
2 stops29h 55mMultiple Airlines
Deal found 12/7$909
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Sun 12/283:50 pmORD - CRL
1 stop13h 55mMultiple Airlines
Fri 1/91:00 pmCRL - ORD
2 stops29h 55mMultiple Airlines
Deal found 12/7$927
This Mytrip deal was found by Cheapflights users on 12/7. 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 12/76:50 pmORD - CRL
2 stops20h 25mMultiple Airlines
Thu 12/118:40 amCRL - ORD
2 stops32h 25mMultiple Airlines
Deal found 12/7$961
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Wed 12/317:40 pmORD - CRL
1 stop13h 15mMultiple Airlines
Sat 1/109:30 amCRL - ORD
2 stops36h 15mMultiple Airlines
Deal found 12/7$985
This Mytrip deal was found by Cheapflights users on 12/7. 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.
Fri 12/262:00 pmORD - CRL
3 stops18h 50mMultiple Airlines
Fri 1/306:25 amCRL - ORD
3 stops47h 17mMultiple Airlines
Deal found 12/7$996

Find 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 December 9, 2025.

Round-trip from

$445
(Scandinavian Airlines)

One-way from

$357
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$574
From Chicago O'Hare Intl to Brussels
Search Deals
One-way flight from Chicago O'Hare Intl to Brussels
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Highest demand for flights based on searches. 19% potential increase in price ($178 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 9, 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

Fri 1/23

7:01 am-9:40 am

2 stops19h 39m

Brussels Bruxelles-National

Sun 1/25

10:20 am-4:55 pm

1 stop13h 35m

$463

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 2/23

7:20 pm-10:50 am

2 stops32h 30m

Brussels Bruxelles-National

Fri 2/27

8:30 pm-4:45 pm

1 stop27h 15m

$493

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 3/16

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Wed 4/1

10:20 am-4:20 pm

1 stop13h 00m

$620

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 4/24

7:15 pm-12:00 pm

2 stops33h 45m

Brussels Bruxelles-National

Wed 5/6

5:45 am-10:06 pm

2 stops23h 21m

$621

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Fri 1/23

8:15 pm-9:15 pm

1 stop18h 00m

Charleroi Brussels

Wed 1/28

7:00 am-3:00 pm

1 stop15h 00m

$631

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 4/28

10:40 am-10:40 am

2 stops17h 00m

Brussels Bruxelles-National

Sat 5/9

9:30 am-10:06 pm

2 stops19h 36m

$634

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 3/26

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Wed 4/1

10:20 am-4:20 pm

1 stop13h 00m

$650

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Wed 2/11

6:30 pm-8:55 pm

2 stops19h 25m

Charleroi Brussels

Wed 2/18

6:55 am-9:16 am

3 stops33h 21m

$657

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 2/20

7:20 pm-11:55 am

2 stops33h 35m

Brussels Bruxelles-National

Sun 3/8

7:45 pm-5:45 pm

2 stops28h 00m

$668

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 3/25

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Fri 4/3

10:20 am-4:10 pm

1 stop12h 50m

$700

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 34 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 December 5, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to Brussels is 36 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, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Brussels (average of $293). Flying from Chicago O'Hare Intl Airport to Brussels in August is currently the most expensive (average of $496). 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 December 9, 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 29% on the cost of your flight, compared to a flight at noon.

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 December 9, 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 December 9, 2025.
Get a feel of what it's like to fly with Scandinavian Airlines, United Airlines, and Aer Lingus 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
1,602 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Food

6.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,602 reviews
Scandinavian Airlines
7.4
Good
1,602 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Food

6.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
United Airlines
7.4
Good
9,089 reviews
Scandinavian Airlines
7.4
Good
1,602 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Food

6.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Aer Lingus
7.2
Good
1,389 reviews
Scandinavian Airlines
7.4
Good
1,602 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Food

6.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
TAP AIR PORTUGAL
7.1
Good
2,085 reviews
Scandinavian Airlines
7.4
Good
1,602 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Food

6.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Icelandair
7.0
Good
588 reviews
Scandinavian Airlines
7.4
Good
1,602 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Food

6.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

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 19h 39m. 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 $298. Additional round-trip tickets that might be worth considering are offered by Icelandair and TAP AIR PORTUGAL, with the lowest prices starting at $428 and $445, 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 SWISS (63%), Qatar Airways (50%) and Air Canada (47%).

  • 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 $2,398, our data indicates the cheapest price to be $410. The most popular route (Chicago O'Hare Intl - Brussels Bruxelles-National), is priced around $460.

  • 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, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Brussels (average of $293). Flying from Chicago O'Hare Intl Airport to Brussels in August is currently the most expensive (average of $496). 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 7 airlines flying from O'Hare Intl to Brussels

Discover the top 7 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 December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$298Average$487FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$428Average$605FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$445Average$463FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$492Average$793FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$536Average$751FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$551Average$692FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$639Average$1,059FlexibilityNo cancel feeOn-time69%

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