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Cheap flights from Chicago to Brussels from $231

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 1/31. 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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Cheap round-trip flights

Scandinavian Airlines Logo
10:30 am - 2:30 pmORD-BRU
21h 00m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$412Scandinavian Airlines
Find Deal
mar., nov. 18 - dom., nov. 23
Scandinavian Airlines Logo
7:30 am - 9:40 amORD-BRU
19h 10m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$425Scandinavian Airlines
Find Deal
mié., ene. 28 - vie., feb. 6
Scandinavian Airlines Logo
10:40 am - 9:40 amORD-BRU
16h 00m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$428Scandinavian Airlines
Find Deal
mié., ene. 28 - vie., feb. 6
Scandinavian Airlines Logo
7:05 am - 7:50 pmORD-BRU
30h 45m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pmBRU-ORD
36h 15m2 stops
$433Scandinavian Airlines
Find Deal
mar., oct. 28 - mar., nov. 4
Scandinavian Airlines Logo
7:05 am - 9:40 amORD-BRU
20h 35m2 stops
Scandinavian Airlines Logo
8:30 pm - 4:45 pmBRU-ORD
27h 15m1 stop
$434Scandinavian Airlines
Find Deal
mar., oct. 28 - mar., nov. 4
TAP AIR PORTUGAL Logo
8:25 pm - 11:50 pmORD-BRU
20h 25m1 stop
TAP AIR PORTUGAL Logo
5:55 pm - 3:00 pmBRU-ORD
28h 05m1 stop
$476TAP AIR PORTUGAL
Find Deal
dom., dic. 14 - mar., dic. 23
Logo
3:35 pm - 9:00 pmORD-CRL
22h 25m2 stops
Logo
6:20 am - 8:00 pmCRL-ORD
20h 40m2 stops
$536
Find Deal
lun., nov. 3 - mar., nov. 11
Logo
3:35 pm - 9:00 pmORD-CRL
22h 25m2 stops
Logo
6:20 am - 8:00 pmCRL-ORD
20h 40m2 stops
$537
Find Deal
lun., nov. 3 - mar., nov. 11
Delta Logo
9:35 am - 9:00 amMDW-BRU
16h 25m2 stops
Delta Logo
11:00 am - 11:32 pmBRU-MDW
19h 32m2 stops
$771Delta
Find Deal
lun., nov. 3 - mar., nov. 11
Delta Logo
10:08 am - 9:00 amMDW-BRU
15h 52m2 stops
Delta Logo
8:05 am - 6:08 pmBRU-MDW
17h 03m2 stops
$816Delta
Find Deal
mié., dic. 31 - vie., ene. 16

Scandinavian Airlines flights from Chicago to Brussels

Our best Scandinavian Airlines deals on Chicago to Brussels flight tickets
Scandinavian Airlines
Nov 18
ORD10:30 amChicago O'Hare Intl
21h 00m
2 stops
BRU2:30 pmBrussels Bruxelles-National
Nov 23
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
$412
Find similar
Scandinavian Airlines
Jan 28
ORD7:30 amChicago O'Hare Intl
19h 10m
2 stops
BRU9:40 amBrussels Bruxelles-National
Feb 6
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
$425
Find similar
Scandinavian Airlines
Jan 28
ORD10:40 amChicago O'Hare Intl
16h 00m
2 stops
BRU9:40 amBrussels Bruxelles-National
Feb 6
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
$428
Find similar

TAP AIR PORTUGAL flights from Chicago to Brussels

Our best TAP AIR PORTUGAL deals on Chicago to Brussels flight tickets
TAP AIR PORTUGAL
Dec 14
ORD8:25 pmChicago O'Hare Intl
20h 25m
1 stop
BRU11:50 pmBrussels Bruxelles-National
Dec 23
BRU5:55 pmBrussels Bruxelles-National
28h 05m
1 stop
ORD3:00 pmChicago O'Hare Intl
$476
Find similar
TAP AIR PORTUGAL
Sep 22
ORD6:10 pmChicago O'Hare Intl
13h 55m
1 stop
BRU3:05 pmBrussels Bruxelles-National
Oct 6
BRU11:50 amBrussels Bruxelles-National
28h 32m
2 stops
ORD9:22 amChicago O'Hare Intl
$1,130
Find similar
TAP AIR PORTUGAL
Sep 22
ORD6:10 pmChicago O'Hare Intl
22h 45m
1 stop
BRU11:55 pmBrussels Bruxelles-National
Oct 6
BRU8:55 pmBrussels Bruxelles-National
31h 31m
2 stops
ORD9:26 pmChicago O'Hare Intl
$1,156
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 septiembre 15, 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

mar. 11/18

10:30 am-2:30 pm

2 stops21h 00m

Brussels Bruxelles-National

dom. 11/23

10:20 am-4:45 pm

1 stop13h 25m

$412

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mié. 1/28

7:30 am-9:40 am

2 stops19h 10m

Brussels Bruxelles-National

vie. 2/6

10:20 am-4:45 pm

1 stop13h 25m

$425

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mié. 1/28

10:40 am-9:40 am

2 stops16h 00m

Brussels Bruxelles-National

vie. 2/6

10:20 am-4:45 pm

1 stop13h 25m

$428

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mar. 10/28

7:05 am-7:50 pm

2 stops30h 45m

Brussels Bruxelles-National

mar. 11/4

11:30 am-4:45 pm

2 stops36h 15m

$433

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mar. 10/28

7:05 am-9:40 am

2 stops20h 35m

Brussels Bruxelles-National

mar. 11/4

8:30 pm-4:45 pm

1 stop27h 15m

$434

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

dom. 12/14

8:25 pm-11:50 pm

1 stop20h 25m

Brussels Bruxelles-National

mar. 12/23

5:55 pm-3:00 pm

1 stop28h 05m

$476

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

lun. 11/3

3:35 pm-9:00 pm

2 stops22h 25m

Charleroi Brussels

mar. 11/11

6:20 am-8:00 pm

2 stops20h 40m

$536

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

lun. 11/3

3:35 pm-9:00 pm

2 stops22h 25m

Charleroi Brussels

mar. 11/11

6:20 am-8:00 pm

2 stops20h 40m

$537

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

lun. 11/3

9:35 am-9:00 am

2 stops16h 25m

Brussels Bruxelles-National

mar. 11/11

11:00 am-11:32 pm

2 stops19h 32m

$771

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

mié. 12/31

10:08 am-9:00 am

2 stops15h 52m

Brussels Bruxelles-National

vie. 1/16

8:05 am-6:08 pm

2 stops17h 03m

$816

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 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 April is also very affordable. Most momondo users find prices during this month for around $581.

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 $1,378.

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 $1,185.

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 $780 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 $614 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)
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 11h 35m.

  • 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
1,484 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $405Free CancellationRating
7.0
544 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
3,968 reviews
Search Turkish Airlines flights
KLMPriceFrom $506Free CancellationRating
7.8
1,385 reviews
Search KLM flights
Aer LingusPriceFrom $536Free CancellationRating
7.2
1,270 reviews
Search Aer Lingus flights
TAP AIR PORTUGALPriceFrom $542Free CancellationRating
7.1
1,975 reviews
Search TAP AIR PORTUGAL flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
LufthansaPriceFrom $728Free CancellationRating
6.8
7,407 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