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Cheap flights from Chicago O'Hare Intl Airport to Brussels from $247

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Brussels departing on 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
8:25 pm - 11:50 pmORD-BRU
20h 25m1 stop
TAP AIR PORTUGAL Logo
11:50 am - 3:00 pmBRU-ORD
34h 10m1 stop
$407TAP AIR PORTUGAL
Find Deal
Sun, Nov 30 - Tue, Dec 9
Scandinavian Airlines Logo
10:40 am - 9:40 amORD-BRU
16h 00m2 stops
Scandinavian Airlines Logo
7:45 pm - 4:45 pmBRU-ORD
28h 00m2 stops
$434Scandinavian Airlines
Find Deal
Fri, Jan 23 - Sun, Jan 25
Scandinavian Airlines Logo
10:40 am - 9:40 amORD-BRU
16h 00m2 stops
Scandinavian Airlines Logo
10:20 am - 4:55 pmBRU-ORD
13h 35m1 stop
$437Scandinavian Airlines
Find Deal
Fri, Jan 23 - Sun, Jan 25
Scandinavian Airlines Logo
7:10 am - 2:30 pmORD-BRU
24h 20m2 stops
Scandinavian Airlines Logo
3:10 pm - 4:45 pmBRU-ORD
32h 35m1 stop
$439Scandinavian Airlines
Find Deal
Tue, Dec 9 - Tue, Dec 23
Scandinavian Airlines Logo
7:20 pm - 9:40 amORD-BRU
31h 20m1 stop
Scandinavian Airlines Logo
7:45 pm - 4:45 pmBRU-ORD
28h 00m2 stops
$441Scandinavian Airlines
Find Deal
Fri, Jan 23 - Sun, Jan 25
Scandinavian Airlines Logo
10:24 am - 2:30 pmORD-BRU
21h 06m2 stops
Scandinavian Airlines Logo
6:55 pm - 4:45 pmBRU-ORD
28h 50m2 stops
$442Scandinavian Airlines
Find Deal
Fri, Jan 9 - Sun, Jan 18
Scandinavian Airlines Logo
7:20 pm - 7:50 pmORD-BRU
17h 30m1 stop
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$448Scandinavian Airlines
Find Deal
Wed, Jan 28 - Fri, Feb 6
Scandinavian Airlines Logo
10:35 am - 7:50 pmORD-BRU
26h 15m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$449Scandinavian Airlines
Find Deal
Tue, Dec 9 - Thu, Dec 25
TAP AIR PORTUGAL Logo
8:15 pm - 11:50 pmORD-BRU
20h 35m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 2:45 pmBRU-ORD
15h 45m1 stop
$457TAP AIR PORTUGAL
Find Deal
Fri, Nov 28 - Sun, Dec 7
Multiple Airlines Logo
10:35 pm - 10:20 pmORD-CRL
16h 45m2 stops
Multiple Airlines Logo
5:15 pm - 2:55 pmCRL-ORD
28h 40m3 stops
$603Multiple Airlines
Find Deal
Sun, Nov 23 - Mon, Dec 1

TAP AIR PORTUGAL flights from Chicago O'Hare Intl Airport to Brussels

Our best TAP AIR PORTUGAL deals on Chicago O'Hare Intl Airport to Brussels flight tickets
TAP AIR PORTUGAL
Nov 30
ORD8:25 pmChicago O'Hare Intl
20h 25m
1 stop
BRU11:50 pmBrussels Bruxelles-National
Dec 9
BRU11:50 amBrussels Bruxelles-National
34h 10m
1 stop
ORD3:00 pmChicago O'Hare Intl
$407
Find similar
TAP AIR PORTUGAL
Nov 28
ORD8:15 pmChicago O'Hare Intl
20h 35m
1 stop
BRU11:50 pmBrussels Bruxelles-National
Dec 7
BRU6:00 amBrussels Bruxelles-National
15h 45m
1 stop
ORD2:45 pmChicago O'Hare Intl
$457
Find similar
TAP AIR PORTUGAL
Nov 5
ORD7:10 pmChicago O'Hare Intl
14h 55m
1 stop
BRU5:05 pmBrussels Bruxelles-National
Dec 9
BRU11:50 amBrussels Bruxelles-National
34h 10m
1 stop
ORD3:00 pmChicago O'Hare Intl
$616
Find similar

Scandinavian Airlines flights from Chicago O'Hare Intl Airport to Brussels

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Brussels flight tickets
Scandinavian Airlines
Jan 23
ORD10:40 amChicago O'Hare Intl
16h 00m
2 stops
BRU9:40 amBrussels Bruxelles-National
Jan 25
BRU7:45 pmBrussels Bruxelles-National
28h 00m
2 stops
ORD4:45 pmChicago O'Hare Intl
$434
Find similar
Scandinavian Airlines
Jan 23
ORD10:40 amChicago O'Hare Intl
16h 00m
2 stops
BRU9:40 amBrussels Bruxelles-National
Jan 25
BRU10:20 amBrussels Bruxelles-National
13h 35m
1 stop
ORD4:55 pmChicago O'Hare Intl
$437
Find similar
Scandinavian Airlines
Dec 9
ORD7:10 amChicago O'Hare Intl
24h 20m
2 stops
BRU2:30 pmBrussels Bruxelles-National
Dec 23
BRU3:10 pmBrussels Bruxelles-National
32h 35m
1 stop
ORD4:45 pmChicago O'Hare Intl
$439
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated November 3, 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

Fly to

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 11/30

8:25 pm-11:50 pm

1 stop20h 25m

Brussels Bruxelles-National

Tue 12/9

11:50 am-3:00 pm

1 stop34h 10m

$407

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 1/23

10:40 am-9:40 am

2 stops16h 00m

Brussels Bruxelles-National

Sun 1/25

7:45 pm-4:45 pm

2 stops28h 00m

$434

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 1/23

10:40 am-9:40 am

2 stops16h 00m

Brussels Bruxelles-National

Sun 1/25

10:20 am-4:55 pm

1 stop13h 35m

$437

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 12/9

7:10 am-2:30 pm

2 stops24h 20m

Brussels Bruxelles-National

Tue 12/23

3:10 pm-4:45 pm

1 stop32h 35m

$439

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 1/23

7:20 pm-9:40 am

1 stop31h 20m

Brussels Bruxelles-National

Sun 1/25

7:45 pm-4:45 pm

2 stops28h 00m

$441

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 1/9

10:24 am-2:30 pm

2 stops21h 06m

Brussels Bruxelles-National

Sun 1/18

6:55 pm-4:45 pm

2 stops28h 50m

$442

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/28

7:20 pm-7:50 pm

1 stop17h 30m

Brussels Bruxelles-National

Fri 2/6

10:20 am-4:45 pm

1 stop13h 25m

$448

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 12/9

10:35 am-7:50 pm

2 stops26h 15m

Brussels Bruxelles-National

Thu 12/25

10:20 am-4:45 pm

1 stop13h 25m

$449

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 11/28

8:15 pm-11:50 pm

1 stop20h 35m

Brussels Bruxelles-National

Sun 12/7

6:00 am-2:45 pm

1 stop15h 45m

$457

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 11/23

10:35 pm-10:20 pm

2 stops16h 45m

Charleroi Brussels

Mon 12/1

5:15 pm-2:55 pm

3 stops28h 40m

$603

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Brussels from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Brussels

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Chicago O'Hare Intl Airport and Brussels?

What is the cheapest month to fly to Brussels?

In general, September is the cheapest month to fly from Chicago O'Hare Intl Airport to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $515. If you are unable to visit Brussels during the month of September, then departing from Chicago O'Hare Intl Airport during the month February is also very affordable. Most momondo users find prices during this month for around $634.

What is the cheapest day to depart on your flight to Brussels?

On average, the least expensive day to fly to Brussels from Chicago O'Hare Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,098. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Chicago O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,411.

What is the cheapest time of day to depart on your flight to Brussels?

According to our data, the cheapest time of day to fly to Brussels is in the evening. momondo users have found flights departing from Chicago O'Hare Intl Airport to Brussels in the evening for as low as $579. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,208.

What is the cheapest Chicago O'Hare Intl to Brussels flight route?

Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago O'Hare Intl - Brussels flight prices

How far in advance should I book a flight to Brussels?

You are more likely to see cheaper flights to Brussels from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around $779 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from Chicago O'Hare Intl Airport for as low as $616 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Brussels flights?

There are 3 cabin classes available to choose from on Chicago O'Hare Intl to Brussels flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Chicago O'Hare Intl Airport to Brussels flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Brussels

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Brussels

1 airport
The fastest flight from Chicago O'Hare Intl Airport to Brussels takes 8h 00m
Direct flights go from Chicago O'Hare Intl Airport to Brussels every day.
There is 1 airport near Brussels: Brussels Bruxelles-National (BRU)
Search flight deals

  • How far is Chicago O'Hare Intl to Brussels by plane?

    The straight-line distance from Chicago O'Hare Intl to Brussels is 4141.6 mi. By plane, this route typically takes 11h 50m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Brussels?

    Prices for flights from Chicago O'Hare Intl Airport to Brussels are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Brussels?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Brussels?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Brussels.

  • What documentation or ID do you need to fly to Brussels?

    The required travel and health documents for your Brussels trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Brussels. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Chicago O'Hare Intl Airport to Brussels

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Brussels with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $310Free CancellationRating
7.4
1,554 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $428Free CancellationRating
7.1
566 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
4,039 reviews
Search Turkish Airlines flights
Aer LingusPriceFrom $536Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,494 reviews
Search British Airways flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
TAP AIR PORTUGALPriceFrom $744Free CancellationRating
7.1
2,044 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $754Free CancellationRating
6.8
7,544 reviews
Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Brussels?

It is quick and easy to find Chicago to Brussels flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Brussels that suits you.

Can I find flights from Chicago to Brussels with flexible booking policies on momondo?

Yes. All flights to Brussels from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to Brussels?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Brussels from Chicago.

I’m not ready to book a flight from Chicago to Brussels right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Brussels flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Airports listed have a maximum distance of 27.4 mi from Brussels
Brussels Bruxelles-National Airport
Charleroi Brussels Airport