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Cheap flights from Chicago O'Hare Intl Airport to Brussels from $256

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 9/21. 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

Scandinavian Airlines Logo
7:20 pm - 8:55 pmORD-BRU
18h 35m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pmBRU-ORD
36h 15m2 stops
$428Scandinavian Airlines
Find Deal
Sun, Nov 30 - Tue, Dec 9
Scandinavian Airlines Logo
7:20 pm - 11:55 amORD-BRU
33h 35m2 stops
Scandinavian Airlines Logo
3:10 pm - 4:45 pmBRU-ORD
32h 35m1 stop
$432Scandinavian Airlines
Find Deal
Fri, Nov 28 - Sun, Dec 7
Scandinavian Airlines Logo
7:15 pm - 3:20 pmORD-BRU
13h 05m1 stop
Scandinavian Airlines Logo
8:30 pm - 5:55 pmBRU-ORD
27h 25m1 stop
$435Scandinavian Airlines
Find Deal
Tue, Oct 21 - Sun, Oct 26
Scandinavian Airlines Logo
7:20 pm - 11:55 amORD-BRU
33h 35m2 stops
Scandinavian Airlines Logo
8:30 pm - 4:45 pmBRU-ORD
27h 15m1 stop
$442Scandinavian Airlines
Find Deal
Fri, Nov 28 - Sun, Dec 7
Scandinavian Airlines Logo
7:20 pm - 8:55 pmORD-BRU
18h 35m2 stops
Scandinavian Airlines Logo
8:30 pm - 4:45 pmBRU-ORD
27h 15m1 stop
$444Scandinavian Airlines
Find Deal
Thu, Nov 27 - Sun, Dec 7
Scandinavian Airlines Logo
7:20 pm - 9:40 amORD-BRU
31h 20m1 stop
Scandinavian Airlines Logo
8:30 pm - 4:45 pmBRU-ORD
27h 15m1 stop
$445Scandinavian Airlines
Find Deal
Fri, Nov 28 - Sun, Dec 7
Scandinavian Airlines Logo
7:20 pm - 9:40 amORD-BRU
31h 20m1 stop
Scandinavian Airlines Logo
3:10 pm - 4:45 pmBRU-ORD
32h 35m1 stop
$446Scandinavian Airlines
Find Deal
Sat, Nov 29 - Sun, Dec 7
Scandinavian Airlines Logo
7:20 pm - 10:50 amORD-BRU
32h 30m2 stops
Scandinavian Airlines Logo
8:30 pm - 4:45 pmBRU-ORD
27h 15m1 stop
$447Scandinavian Airlines
Find Deal
Sun, Dec 14 - Sun, Dec 28
Logo
8:40 am - 11:50 amORD-CRL
20h 10m2 stops
Logo
9:05 pm - 12:55 pmCRL-ORD
22h 50m2 stops
$636
Find Deal
Thu, Oct 9 - Thu, Oct 16
Logo
12:00 pm - 4:45 pmORD-CRL
21h 45m2 stops
Logo
6:50 pm - 4:10 pmCRL-ORD
28h 20m2 stops
$659
Find Deal
Sun, Oct 5 - Tue, Oct 14

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
Nov 30
ORD7:20 pmChicago O'Hare Intl
18h 35m
2 stops
BRU8:55 pmBrussels Bruxelles-National
Dec 9
BRU11:30 amBrussels Bruxelles-National
36h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
$428
Find similar
Scandinavian Airlines
Nov 28
ORD7:20 pmChicago O'Hare Intl
33h 35m
2 stops
BRU11:55 amBrussels Bruxelles-National
Dec 7
BRU3:10 pmBrussels Bruxelles-National
32h 35m
1 stop
ORD4:45 pmChicago O'Hare Intl
$432
Find similar
Scandinavian Airlines
Oct 21
ORD7:15 pmChicago O'Hare Intl
13h 05m
1 stop
BRU3:20 pmBrussels Bruxelles-National
Oct 26
BRU8:30 pmBrussels Bruxelles-National
27h 25m
1 stop
ORD5:55 pmChicago O'Hare Intl
$435
Find similar

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

Our best Turkish Airlines deals on Chicago O'Hare Intl Airport to Brussels flight tickets
Turkish Airlines
Aug 19
ORD11:25 amChicago O'Hare Intl
23h 25m
1 stop
BRU5:50 pmBrussels Bruxelles-National
Aug 30
BRU7:15 amBrussels Bruxelles-National
33h 25m
1 stop
ORD9:40 amChicago O'Hare Intl
$2,683
Find similar
Turkish Airlines
Aug 19
ORD11:25 amChicago O'Hare Intl
15h 25m
1 stop
BRU9:50 amBrussels Bruxelles-National
Aug 30
BRU2:25 pmBrussels Bruxelles-National
26h 15m
1 stop
ORD9:40 amChicago O'Hare Intl
$2,847
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 August 14, 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

7:20 pm-8:55 pm

2 stops18h 35m

Brussels Bruxelles-National

Tue 12/9

11:30 am-4:45 pm

2 stops36h 15m

$428

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 11/28

7:20 pm-11:55 am

2 stops33h 35m

Brussels Bruxelles-National

Sun 12/7

3:10 pm-4:45 pm

1 stop32h 35m

$432

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 10/21

7:15 pm-3:20 pm

1 stop13h 05m

Brussels Bruxelles-National

Sun 10/26

8:30 pm-5:55 pm

1 stop27h 25m

$435

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 11/28

7:20 pm-11:55 am

2 stops33h 35m

Brussels Bruxelles-National

Sun 12/7

8:30 pm-4:45 pm

1 stop27h 15m

$442

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 11/27

7:20 pm-8:55 pm

2 stops18h 35m

Brussels Bruxelles-National

Sun 12/7

8:30 pm-4:45 pm

1 stop27h 15m

$444

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 11/28

7:20 pm-9:40 am

1 stop31h 20m

Brussels Bruxelles-National

Sun 12/7

8:30 pm-4:45 pm

1 stop27h 15m

$445

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 11/29

7:20 pm-9:40 am

1 stop31h 20m

Brussels Bruxelles-National

Sun 12/7

3:10 pm-4:45 pm

1 stop32h 35m

$446

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 12/14

7:20 pm-10:50 am

2 stops32h 30m

Brussels Bruxelles-National

Sun 12/28

8:30 pm-4:45 pm

1 stop27h 15m

$447

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Thu 10/9

8:40 am-11:50 am

2 stops20h 10m

Charleroi Brussels

Thu 10/16

9:05 pm-12:55 pm

2 stops22h 50m

$636

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 10/5

12:00 pm-4:45 pm

2 stops21h 45m

Charleroi Brussels

Tue 10/14

6:50 pm-4:10 pm

2 stops28h 20m

$659

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 $534. If you are unable to visit Brussels during the month of September, then departing from Chicago O'Hare Intl Airport during the month October is also very affordable. Most momondo users find prices during this month for around $577.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,100. 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 $1,297.

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 $1,173.

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 $776 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 $597 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

Best Price Found

$256

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Brussels

2 airports
The best one-way flight to Brussels from Chicago O'Hare Intl Airport in the past 72 hours is $256. The best round-trip flight deal from Chicago O'Hare Intl Airport to Brussels found on momondo in the last 72 hours is $428.
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 are 2 airports near Brussels: Brussels Bruxelles-National (BRU), Charleroi Brussels (CRL)
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 12h 05m.

  • 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 $313Free CancellationRating
7.4
1,468 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $405Free CancellationRating
7.0
526 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
3,940 reviews
Search Turkish Airlines flights
KLMPriceFrom $506Free CancellationRating
7.8
1,381 reviews
Search KLM flights
Aer LingusPriceFrom $536Free CancellationRating
7.1
1,214 reviews
Search Aer Lingus flights
TAP AIR PORTUGALPriceFrom $542Free CancellationRating
7.1
1,947 reviews
Search TAP AIR PORTUGAL flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
LufthansaPriceFrom $728Free CancellationRating
6.8
7,317 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