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Cheap flights from Chicago to Brussels from $272

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 to Brussels departing on 4/12. 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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0 bags

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Find the cheapest flights from Chicago to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
6:00 pm - 8:05 pm
ORD
-
BRU
19h 05m
1 stop
TAP AIR PORTUGAL Logo
5:55 am - 4:00 pm
BRU
-
ORD
17h 05m
1 stop
$440TAP AIR PORTUGAL
Fri, Apr 24 - Wed, May 6
TAP AIR PORTUGAL Logo
7:10 pm - 5:05 pm
ORD
-
BRU
14h 55m
1 stop
TAP AIR PORTUGAL Logo
5:55 pm - 4:00 pm
BRU
-
ORD
28h 05m
1 stop
$441TAP AIR PORTUGAL
Wed, Mar 4 - Tue, Mar 10
Scandinavian Airlines Logo
7:15 pm - 9:40 am
ORD
-
BRU
31h 25m
1 stop
Scandinavian Airlines Logo
11:20 am - 4:10 pm
BRU
-
ORD
35h 50m
2 stops
$455Scandinavian Airlines
Wed, Apr 15 - Tue, Apr 21
Scandinavian Airlines Logo
7:15 pm - 6:30 pm
ORD
-
BRU
16h 15m
1 stop
Scandinavian Airlines Logo
5:45 am - 4:10 pm
BRU
-
ORD
17h 25m
1 stop
$459Scandinavian Airlines
Mon, Apr 13 - Wed, Apr 22
Multiple Airlines Logo
9:00 pm - 9:25 pm
ORD
-
CRL
17h 25m
1 stop
Multiple Airlines Logo
9:50 am - 7:15 pm
CRL
-
ORD
16h 25m
1 stop
$538Multiple Airlines
Sun, Apr 5 - Fri, Apr 10
Multiple Airlines Logo
12:50 pm - 9:00 pm
ORD
-
CRL
26h 10m
3 stops
Multiple Airlines Logo
9:25 pm - 9:05 pm
CRL
-
ORD
29h 40m
2 stops
$624Multiple Airlines
Mon, Mar 16 - Tue, Mar 24
Delta Logo
10:45 am - 7:40 am
MDW
-
BRU
13h 55m
1 stop
Delta Logo
9:45 am - 4:25 pm
BRU
-
MDW
13h 40m
1 stop
$767Delta
Sun, Apr 12 - Tue, Apr 21
Delta Logo
10:45 am - 8:00 am
MDW
-
BRU
15h 15m
1 stop
Delta Logo
8:05 am - 5:54 pm
BRU
-
MDW
16h 49m
2 stops
$776Delta
Mon, Mar 23 - Wed, Apr 1
KLM Logo
10:45 am - 8:00 am
MDW
-
BRU
15h 15m
1 stop
KLM Logo
8:05 am - 6:40 pm
BRU
-
MDW
17h 35m
2 stops
$797KLM
Mon, Mar 23 - Wed, Apr 1
KLM Logo
1:10 pm - 7:35 am
MDW
-
BRU
12h 25m
2 stops
KLM Logo
8:05 am - 6:40 pm
BRU
-
MDW
17h 35m
2 stops
$807KLM
Mon, Mar 23 - Wed, Apr 1

TAP AIR PORTUGAL flights from Chicago to Brussels

Our best TAP AIR PORTUGAL deals on Chicago to Brussels flight tickets
TAP AIR PORTUGAL
Apr 24
ORD6:00 pmChicago O'Hare Intl
19h 05m
1 stop
BRU8:05 pmBrussels Bruxelles-National
May 6
BRU5:55 amBrussels Bruxelles-National
17h 05m
1 stop
ORD4:00 pmChicago O'Hare Intl
$440
TAP AIR PORTUGAL
Mar 4
ORD7:10 pmChicago O'Hare Intl
14h 55m
1 stop
BRU5:05 pmBrussels Bruxelles-National
Mar 10
BRU5:55 pmBrussels Bruxelles-National
28h 05m
1 stop
ORD4:00 pmChicago O'Hare Intl
$441
TAP AIR PORTUGAL
Mar 4
ORD7:10 pmChicago O'Hare Intl
14h 55m
1 stop
BRU5:05 pmBrussels Bruxelles-National
Mar 10
BRU5:55 pmBrussels Bruxelles-National
28h 05m
1 stop
ORD4:00 pmChicago O'Hare Intl
$442

Scandinavian Airlines flights from Chicago to Brussels

Our best Scandinavian Airlines deals on Chicago to Brussels flight tickets
Scandinavian Airlines
Apr 15
ORD7:15 pmChicago O'Hare Intl
31h 25m
1 stop
BRU9:40 amBrussels Bruxelles-National
Apr 20
BRU9:10 pmBrussels Bruxelles-National
50h 00m
2 stops
ORD4:10 pmChicago O'Hare Intl
$455
Scandinavian Airlines
Apr 13
ORD7:15 pmChicago O'Hare Intl
16h 15m
1 stop
BRU6:30 pmBrussels Bruxelles-National
Apr 22
BRU5:45 amBrussels Bruxelles-National
17h 25m
1 stop
ORD4:10 pmChicago O'Hare Intl
$459
Scandinavian Airlines
Apr 15
ORD7:15 pmChicago O'Hare Intl
18h 15m
2 stops
BRU8:30 pmBrussels Bruxelles-National
Apr 21
BRU11:20 amBrussels Bruxelles-National
35h 50m
2 stops
ORD4:10 pmChicago O'Hare Intl
$464

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 January 28, 2026.
Use the filters below to find and compare flights from Chicago to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 4/24

6:00 pm-8:05 pm

1 stop19h 05m

Brussels Bruxelles-National

Wed 5/6

5:55 am-4:00 pm

1 stop17h 05m

$440

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 3/4

7:10 pm-5:05 pm

1 stop14h 55m

Brussels Bruxelles-National

Tue 3/10

5:55 pm-4:00 pm

1 stop28h 05m

$441

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 4/15

7:15 pm-9:40 am

1 stop31h 25m

Brussels Bruxelles-National

Tue 4/21

11:20 am-4:10 pm

2 stops35h 50m

$455

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 4/13

7:15 pm-6:30 pm

1 stop16h 15m

Brussels Bruxelles-National

Wed 4/22

5:45 am-4:10 pm

1 stop17h 25m

$459

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 4/5

9:00 pm-9:25 pm

1 stop17h 25m

Charleroi Brussels

Fri 4/10

9:50 am-7:15 pm

1 stop16h 25m

$538

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Mon 3/16

12:50 pm-9:00 pm

3 stops26h 10m

Charleroi Brussels

Tue 3/24

9:25 pm-9:05 pm

2 stops29h 40m

$624

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 4/12

10:45 am-7:40 am

1 stop13h 55m

Brussels Bruxelles-National

Tue 4/21

9:45 am-4:25 pm

1 stop13h 40m

$767

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Mon 3/23

10:45 am-8:00 am

1 stop15h 15m

Brussels Bruxelles-National

Wed 4/1

8:05 am-5:54 pm

2 stops16h 49m

$776

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Mon 3/23

10:45 am-8:00 am

1 stop15h 15m

Brussels Bruxelles-National

Wed 4/1

8:05 am-6:40 pm

2 stops17h 35m

$797

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Mon 3/23

1:10 pm-7:35 am

2 stops12h 25m

Brussels Bruxelles-National

Wed 4/1

8:05 am-6:40 pm

2 stops17h 35m

$807

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 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 and Brussels?

What is the cheapest month to fly to Brussels?

In general, September is the cheapest month to fly from Chicago to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $578. If you are unable to visit Brussels during the month of September, then departing from Chicago during the month October is also very affordable. Most momondo users find prices during this month for around $600.

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

On average, the least expensive day to fly to Brussels from Chicago is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,067. 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 because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,347.

What is the cheapest Chicago to Brussels flight route?

Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around $764 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from Chicago for as low as $500 on momondo.

What cabin class options are available on Chicago to Brussels flights?

There are 3 cabin classes available to choose from on Chicago 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 to Brussels flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Brussels

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Brussels

2 airports
The fastest flight from Chicago to Brussels takes 8h 00m
Direct flights go from Chicago to Brussels every day.
There are 2 airports in Brussels. From Chicago there are direct flights to Brussels Bruxelles-National (BRU).
Search flight deals

  • How far is Chicago to Brussels by plane?

    The distance between Chicago and Brussels is about 4136.1 mi. By plane, this route typically takes 8h 00m.

  • When did momondo last update prices for flights from Chicago to Brussels?

    Prices for flights from Chicago to Brussels refresh daily.

  • How many operators does momondo search for flights from Chicago to Brussels?

  • How old do you have to be to fly from Chicago to Brussels?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Brussels.

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

    The travel and health documents you'll need for your trip to Brussels may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Brussels. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Chicago to Brussels

Compare and see reviews for airlines that fly from Chicago to Brussels with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $293Free CancellationRating
7.3
1,672 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $428Free CancellationRating
7.1
603 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $445Free CancellationRating
7.1
2,130 reviews
Search TAP AIR PORTUGAL flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
4,209 reviews
Search Turkish Airlines flights
Aer LingusPriceFrom $531Free CancellationRating
7.2
1,442 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,704 reviews
Search British Airways flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
9,208 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $752Free CancellationRating
7.2
381 reviews
Search Brussels Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Brussels. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Chicago to Brussels flights to just show those with flexible booking policies.

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 offers price alerts on flights to Brussels from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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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