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Cheap flights from Chicago O'Hare Intl Airport to Brussels from $237

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 10/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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.
Aer Lingus Logo
1:20 pm - 9:35 am-
13h 15m
Aer Lingus Logo
10:15 am - 8:00 pm-
16h 45m
$510Aer Lingus
Fri, Jan 22 - Fri, Jan 29
Icelandair Logo
6:30 pm - 11:55 am-
10h 25m
Icelandair Logo
12:50 pm - 5:20 pm-
11h 30m
$549Icelandair
Wed, Dec 9 - Sun, Dec 20
Icelandair Logo
7:30 pm - 11:55 am-
10h 25m
Icelandair Logo
12:50 pm - 5:20 pm-
11h 30m
$552Icelandair
Sat, Oct 31 - Sun, Nov 8
Turkish Airlines Logo
8:10 pm - 9:25 pm-
18h 15m
Turkish Airlines Logo
2:55 pm - 9:40 am-
25h 45m
$690Turkish Airlines
Wed, Sep 16 - Wed, Sep 23
TAP AIR PORTUGAL Logo
7:00 pm - 5:05 pm-
15h 05m
TAP AIR PORTUGAL Logo
6:00 am - 3:30 pm-
16h 30m
$697TAP AIR PORTUGAL
Wed, Dec 2 - Wed, Dec 9
TAP AIR PORTUGAL Logo
6:00 pm - 8:05 pm-
19h 05m
TAP AIR PORTUGAL Logo
5:55 pm - 4:30 pm-
28h 35m
$698TAP AIR PORTUGAL
Thu, Oct 15 - Tue, Oct 27
Multiple Airlines Logo
7:25 pm - 12:55 pm-
10h 30m
Multiple Airlines Logo
7:35 pm - 6:15 pm-
29h 40m
$701Multiple Airlines
Sat, Oct 3 - Sun, Oct 18
Multiple Airlines Logo
7:25 pm - 12:55 pm-
10h 30m
Multiple Airlines Logo
7:35 pm - 6:15 pm-
29h 40m
$705Multiple Airlines
Sat, Oct 10 - Wed, Oct 21
Turkish Airlines Logo
8:10 pm - 9:25 pm-
18h 15m
Turkish Airlines Logo
2:55 pm - 9:40 am-
25h 45m
$707Turkish Airlines
Wed, Sep 16 - Wed, Sep 23
Aer Lingus Logo
1:20 pm - 9:35 am-
13h 15m
Aer Lingus Logo
10:15 am - 7:15 pm-
16h 00m
$798Aer Lingus
Fri, Jan 22 - Fri, Jan 29

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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
Sep 16
ORD8:10 pmChicago O'Hare Intl
18h 15m
1 stop
BRU9:25 pmBrussels Bruxelles-National
Sep 23
BRU2:55 pmBrussels Bruxelles-National
25h 45m
1 stop
ORD9:40 amChicago O'Hare Intl
$690
Turkish Airlines
Sep 16
ORD8:10 pmChicago O'Hare Intl
18h 15m
1 stop
BRU9:25 pmBrussels Bruxelles-National
Sep 23
BRU2:55 pmBrussels Bruxelles-National
25h 45m
1 stop
ORD9:40 amChicago O'Hare Intl
$726
Turkish Airlines
Sep 16
ORD8:10 pmChicago O'Hare Intl
18h 15m
1 stop
BRU9:25 pmBrussels Bruxelles-National
Sep 23
BRU2:55 pmBrussels Bruxelles-National
25h 45m
1 stop
ORD9:40 amChicago O'Hare Intl
$729

Icelandair flights from Chicago O'Hare Intl Airport to Brussels

Our best Icelandair deals on Chicago O'Hare Intl Airport to Brussels flight tickets
Icelandair
Dec 9
ORD6:30 pmChicago O'Hare Intl
10h 25m
1 stop
BRU11:55 amBrussels Bruxelles-National
Dec 20
BRU12:50 pmBrussels Bruxelles-National
11h 30m
1 stop
ORD5:20 pmChicago O'Hare Intl
$549
Icelandair
Oct 31
ORD7:30 pmChicago O'Hare Intl
10h 25m
1 stop
BRU11:55 amBrussels Bruxelles-National
Nov 8
BRU12:50 pmBrussels Bruxelles-National
11h 30m
1 stop
ORD5:20 pmChicago O'Hare Intl
$552
Icelandair
Sep 22
ORD7:25 pmChicago O'Hare Intl
10h 30m
1 stop
BRU12:55 pmBrussels Bruxelles-National
Nov 12
BRU12:50 pmBrussels Bruxelles-National
11h 30m
1 stop
ORD5:20 pmChicago O'Hare Intl
$604

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 5, 2026.
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

Cheapest round-trip

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 1/22

1:20 pm-9:35 am

2 stops13h 15m

Brussels Bruxelles-National

Fri 1/29

10:15 am-8:00 pm

2 stops16h 45m

$510
Quickest round-trip

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 12/9

6:30 pm-11:55 am

1 stop10h 25m

Brussels Bruxelles-National

Sun 12/20

12:50 pm-5:20 pm

1 stop11h 30m

$549

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/31

7:30 pm-11:55 am

1 stop10h 25m

Brussels Bruxelles-National

Sun 11/8

12:50 pm-5:20 pm

1 stop11h 30m

$552

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 9/16

8:10 pm-9:25 pm

1 stop18h 15m

Brussels Bruxelles-National

Wed 9/23

2:55 pm-9:40 am

1 stop25h 45m

$690

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 12/2

7:00 pm-5:05 pm

1 stop15h 05m

Brussels Bruxelles-National

Wed 12/9

6:00 am-3:30 pm

1 stop16h 30m

$697

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 10/15

6:00 pm-8:05 pm

1 stop19h 05m

Brussels Bruxelles-National

Tue 10/27

5:55 pm-4:30 pm

1 stop28h 35m

$698

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/3

7:25 pm-12:55 pm

1 stop10h 30m

Brussels Bruxelles-National

Sun 10/18

7:35 pm-6:15 pm

3 stops29h 40m

$701

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/10

7:25 pm-12:55 pm

1 stop10h 30m

Brussels Bruxelles-National

Wed 10/21

7:35 pm-6:15 pm

3 stops29h 40m

$705

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 9/16

8:10 pm-9:25 pm

1 stop18h 15m

Brussels Bruxelles-National

Wed 9/23

2:55 pm-9:40 am

1 stop25h 45m

$707

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 1/22

1:20 pm-9:35 am

2 stops13h 15m

Brussels Bruxelles-National

Fri 1/29

10:15 am-7:15 pm

1 stop16h 00m

$798

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?

Prices are currently low for flights on this route.

Typical prices usually range from $699 to $1,376.
The lowest price recently found on this route was $510.

What is the cheapest month to fly to Brussels?

In general, April 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 $610. If you are unable to visit Brussels during the month of April, then departing from Chicago O'Hare Intl Airport during the month December is also very affordable. Most momondo users find prices during this month for around $684.

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 $1,110. 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 $1,420.

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 $1,233. 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 $1,277.

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 from Chicago O'Hare Intl Airport 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 $862 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 $591 on momondo.

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

There are 3 cabin classes available to choose from on Chicago O'Hare Intl Airport 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

2 airports
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 in Brussels. From Chicago O'Hare Intl Airport there are direct flights to Brussels Bruxelles-National (BRU).
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Brussels

  • 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 8h 00m.

  • 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
IcelandairPriceFrom $418Free CancellationRating
7.0
721 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $444Free CancellationRating
7.2
2,357 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom $468Free CancellationRating
7.4
1,923 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $531Free CancellationRating
7.3
1,689 reviews
Search Aer Lingus flights
Turkish AirlinesPriceFrom $582Free CancellationRating
7.4
4,465 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $692Free CancellationRating
7.4
10,060 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $752Free CancellationRating
7.3
431 reviews
Search Brussels Airlines flights
LufthansaPriceFrom $969Free CancellationRating
6.8
8,175 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