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Cheap flights from Chicago to Brussels from $245

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 11/14. 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 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
$427Scandinavian Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 3
Scandinavian Airlines Logo
7:20 pm - 10:50 amORD-BRU
32h 30m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pmBRU-ORD
36h 15m2 stops
$429Scandinavian Airlines
Find Deal
Wed, Nov 5 - Tue, Dec 9
Logo
6:00 pm - 5:45 pmORD-CRL
16h 45m2 stops
Logo
6:50 pm - 4:10 pmCRL-ORD
28h 20m2 stops
$606
Find Deal
Sun, Oct 12 - Tue, Oct 21
Logo
6:00 pm - 5:45 pmORD-CRL
16h 45m2 stops
Logo
6:50 pm - 4:10 pmCRL-ORD
28h 20m2 stops
$607
Find Deal
Sun, Oct 12 - Tue, Oct 21
Virgin Atlantic Logo
6:00 am - 8:40 amMDW-BRU
19h 40m2 stops
Virgin Atlantic Logo
10:45 am - 9:36 pmBRU-MDW
17h 51m2 stops
$767Virgin Atlantic
Find Deal
Mon, Sep 8 - Tue, Sep 16
Delta Logo
1:08 pm - 9:00 amMDW-BRU
12h 52m2 stops
Delta Logo
11:00 am - 9:44 pmBRU-MDW
17h 44m2 stops
$771Delta
Find Deal
Mon, Nov 3 - Tue, Nov 11
Virgin Atlantic Logo
10:35 am - 8:40 amMDW-BRU
15h 05m2 stops
Virgin Atlantic Logo
10:45 am - 10:14 pmBRU-MDW
18h 29m2 stops
$772Virgin Atlantic
Find Deal
Sun, Oct 12 - Tue, Oct 21
Delta Logo
3:30 pm - 2:15 pmMDW-BRU
15h 45m2 stops
Delta Logo
6:15 am - 4:25 pmBRU-MDW
17h 10m2 stops
$797Delta
Find Deal
Wed, Dec 24 - Tue, Jan 13
KLM Logo
4:25 pm - 8:40 amMDW-BRU
33h 15m1 stop
KLM Logo
10:45 am - 9:36 pmBRU-MDW
17h 51m2 stops
$830KLM
Find Deal
Mon, Sep 8 - Tue, Sep 16
KLM Logo
7:15 pm - 2:35 pmMDW-BRU
12h 20m2 stops
KLM Logo
10:45 am - 10:14 pmBRU-MDW
18h 29m1 stop
$940KLM
Find Deal
Fri, Oct 3 - Fri, Oct 10

Delta flights from Chicago to Brussels

Our best Delta deals on Chicago to Brussels flight tickets
Delta
Nov 3
MDW1:08 pmChicago Midway
12h 52m
2 stops
BRU9:00 amBrussels Bruxelles-National
Nov 11
BRU11:00 amBrussels Bruxelles-National
17h 44m
2 stops
MDW9:44 pmChicago Midway
$771
Find similar
Delta
Dec 24
MDW3:30 pmChicago Midway
15h 45m
2 stops
BRU2:15 pmBrussels Bruxelles-National
Jan 13
BRU6:15 amBrussels Bruxelles-National
17h 10m
2 stops
MDW4:25 pmChicago Midway
$797
Find similar
Delta
Nov 26
MDW10:35 amChicago Midway
15h 25m
2 stops
BRU9:00 amBrussels Bruxelles-National
Dec 3
BRU10:45 amBrussels Bruxelles-National
17h 59m
2 stops
MDW9:44 pmChicago Midway
$816
Find similar

Scandinavian Airlines flights from Chicago to Brussels

Our best Scandinavian Airlines deals on Chicago to Brussels flight tickets
Scandinavian Airlines
Nov 27
ORD7:20 pmChicago O'Hare Intl
18h 35m
2 stops
BRU8:55 pmBrussels Bruxelles-National
Dec 3
BRU11:30 amBrussels Bruxelles-National
36h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
$427
Find similar
Scandinavian Airlines
Nov 5
ORD7:20 pmChicago O'Hare Intl
32h 30m
2 stops
BRU10:50 amBrussels Bruxelles-National
Dec 9
BRU11:30 amBrussels Bruxelles-National
36h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
$429
Find similar
Scandinavian Airlines
Nov 26
ORD7:20 pmChicago O'Hare Intl
12h 10m
1 stop
BRU2:30 pmBrussels Bruxelles-National
Dec 2
BRU11:30 amBrussels Bruxelles-National
36h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
$430
Find similar

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 August 21, 2025.
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

Thu 11/27

7:20 pm-8:55 pm

2 stops18h 35m

Brussels Bruxelles-National

Wed 12/3

11:30 am-4:45 pm

2 stops36h 15m

$427

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 11/5

7:20 pm-10:50 am

2 stops32h 30m

Brussels Bruxelles-National

Tue 12/9

11:30 am-4:45 pm

2 stops36h 15m

$429

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 10/12

6:00 pm-5:45 pm

2 stops16h 45m

Charleroi Brussels

Tue 10/21

6:50 pm-4:10 pm

2 stops28h 20m

$606

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 10/12

6:00 pm-5:45 pm

2 stops16h 45m

Charleroi Brussels

Tue 10/21

6:50 pm-4:10 pm

2 stops28h 20m

$607

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Mon 9/8

6:00 am-8:40 am

2 stops19h 40m

Brussels Bruxelles-National

Tue 9/16

10:45 am-9:36 pm

2 stops17h 51m

$767

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Mon 11/3

1:08 pm-9:00 am

2 stops12h 52m

Brussels Bruxelles-National

Tue 11/11

11:00 am-9:44 pm

2 stops17h 44m

$771

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 10/12

10:35 am-8:40 am

2 stops15h 05m

Brussels Bruxelles-National

Tue 10/21

10:45 am-10:14 pm

2 stops18h 29m

$772

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Wed 12/24

3:30 pm-2:15 pm

2 stops15h 45m

Brussels Bruxelles-National

Tue 1/13

6:15 am-4:25 pm

2 stops17h 10m

$797

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Mon 9/8

4:25 pm-8:40 am

1 stop33h 15m

Brussels Bruxelles-National

Tue 9/16

10:45 am-9:36 pm

2 stops17h 51m

$830

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Fri 10/3

7:15 pm-2:35 pm

2 stops12h 20m

Brussels Bruxelles-National

Fri 10/10

10:45 am-10:14 pm

1 stop18h 29m

$940

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, October 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 $567. If you are unable to visit Brussels during the month of October, then departing from Chicago during the month April is also very affordable. Most momondo users find prices during this month for around $579.

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 Wednesday. momondo users have found tickets for Wednesday 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 because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,287.

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 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 $1,179.

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 $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 for as low as $597 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

1 airport
The fastest flight from Chicago to Brussels takes 8h 00m
Direct flights go from Chicago to Brussels every day.
There is 1 airport near Brussels: Brussels Bruxelles-National (BRU)
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  • 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 11h 22m.

  • 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 $312Free CancellationRating
7.4
1,471 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $405Free CancellationRating
7.0
529 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
3,950 reviews
Search Turkish Airlines flights
KLMPriceFrom $506Free CancellationRating
7.8
1,388 reviews
Search KLM flights
Aer LingusPriceFrom $536Free CancellationRating
7.1
1,228 reviews
Search Aer Lingus flights
TAP AIR PORTUGALPriceFrom $542Free CancellationRating
7.1
1,959 reviews
Search TAP AIR PORTUGAL flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights
LufthansaPriceFrom $728Free CancellationRating
6.8
7,344 reviews
Search Lufthansa 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