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Cheap flights from Chicago to Brussels from $241

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 10/26. 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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Cheap round-trip flights

Scandinavian Airlines Logo
10:30 am - 2:30 pmORD-BRU
21h 00m2 stops
Scandinavian Airlines Logo
8:30 pm - 4:45 pmBRU-ORD
27h 15m1 stop
$412Scandinavian Airlines
Find Deal
Tue, Nov 18 - Sun, Nov 23
Scandinavian Airlines Logo
10:30 am - 2:30 pmORD-BRU
21h 00m2 stops
Scandinavian Airlines Logo
7:45 pm - 4:45 pmBRU-ORD
28h 00m2 stops
$423Scandinavian Airlines
Find Deal
Tue, Nov 18 - Sun, Nov 23
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
Wed, Jan 28 - Fri, Feb 6
Scandinavian Airlines Logo
7:20 pm - 7:50 pmORD-BRU
17h 30m1 stop
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$439Scandinavian Airlines
Find Deal
Sun, Nov 9 - Fri, Nov 21
Scandinavian Airlines Logo
10:35 am - 2:30 pmORD-BRU
20h 55m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$440Scandinavian Airlines
Find Deal
Tue, Nov 18 - Thu, Nov 27
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
Sun, Dec 14 - Tue, Dec 23
Delta Logo
9:32 am - 9:00 amMDW-BRU
16h 28m2 stops
Delta Logo
11:00 am - 11:32 pmBRU-MDW
19h 32m2 stops
$771Delta
Find Deal
Sun, Nov 9 - Tue, Nov 18
Delta Logo
10:47 am - 9:00 amMDW-BRU
15h 13m2 stops
Delta Logo
6:15 am - 4:38 pmBRU-MDW
17h 23m2 stops
$816Delta
Find Deal
Sun, Nov 9 - Fri, Nov 21
Multiple Airlines Logo
9:35 am - 8:05 amMDW-BRU
15h 30m2 stops
Multiple Airlines Logo
10:00 am - 4:24 pmBRU-MDW
13h 24m2 stops
$879Multiple Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
9:35 am - 1:15 pmMDW-BRU
20h 40m3 stops
Multiple Airlines Logo
10:00 am - 4:24 pmBRU-MDW
13h 24m2 stops
$903Multiple Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22

Scandinavian Airlines flights from Chicago to Brussels Bruxelles-National Airport

Our best Scandinavian Airlines deals on Chicago to Brussels Bruxelles-National Airport flight tickets
Scandinavian Airlines
Nov 18
ORD10:30 amChicago O'Hare Intl
21h 00m
2 stops
BRU2:30 pmBrussels Bruxelles-National
Nov 23
BRU8:30 pmBrussels Bruxelles-National
27h 15m
1 stop
ORD4:45 pmChicago O'Hare Intl
$412
Find similar
Scandinavian Airlines
Nov 18
ORD10:30 amChicago O'Hare Intl
21h 00m
2 stops
BRU2:30 pmBrussels Bruxelles-National
Nov 23
BRU7:45 pmBrussels Bruxelles-National
28h 00m
2 stops
ORD4:45 pmChicago O'Hare Intl
$423
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 Bruxelles-National Airport

Our best TAP AIR PORTUGAL deals on Chicago to Brussels Bruxelles-National Airport 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
Sep 24
BRU8:55 pmBrussels Bruxelles-National
22h 40m
1 stop
ORD12:35 pmChicago O'Hare Intl
$881
Find similar
TAP AIR PORTUGAL
Sep 27
ORD6:15 pmChicago O'Hare Intl
33h 45m
1 stop
BRU11:00 amBrussels Bruxelles-National
Oct 3
BRU5:55 amBrussels Bruxelles-National
17h 35m
1 stop
ORD4:30 pmChicago O'Hare Intl
$957
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Brussels Bruxelles-National Airport 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 September 17, 2025.
Use the filters below to find and compare flights from Chicago to Brussels Bruxelles-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 11/18

10:30 am-2:30 pm

2 stops21h 00m

Brussels Bruxelles-National

Sun 11/23

8:30 pm-4:45 pm

1 stop27h 15m

$412

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 11/18

10:30 am-2:30 pm

2 stops21h 00m

Brussels Bruxelles-National

Sun 11/23

7:45 pm-4:45 pm

2 stops28h 00m

$423

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/28

10:40 am-9:40 am

2 stops16h 00m

Brussels Bruxelles-National

Fri 2/6

10:20 am-4:45 pm

1 stop13h 25m

$428

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 11/9

7:20 pm-7:50 pm

1 stop17h 30m

Brussels Bruxelles-National

Fri 11/21

10:20 am-4:45 pm

1 stop13h 25m

$439

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 11/18

10:35 am-2:30 pm

2 stops20h 55m

Brussels Bruxelles-National

Thu 11/27

10:20 am-4:45 pm

1 stop13h 25m

$440

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 12/14

8:25 pm-11:50 pm

1 stop20h 25m

Brussels Bruxelles-National

Tue 12/23

5:55 pm-3:00 pm

1 stop28h 05m

$476

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 11/9

9:32 am-9:00 am

2 stops16h 28m

Brussels Bruxelles-National

Tue 11/18

11:00 am-11:32 pm

2 stops19h 32m

$771

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 11/9

10:47 am-9:00 am

2 stops15h 13m

Brussels Bruxelles-National

Fri 11/21

6:15 am-4:38 pm

2 stops17h 23m

$816

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Wed 10/15

9:35 am-8:05 am

2 stops15h 30m

Brussels Bruxelles-National

Wed 10/22

10:00 am-4:24 pm

2 stops13h 24m

$879

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Wed 10/15

9:35 am-1:15 pm

3 stops20h 40m

Brussels Bruxelles-National

Wed 10/22

10:00 am-4:24 pm

2 stops13h 24m

$903

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 Bruxelles-National Airport

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 Bruxelles-National Airport?

What is the cheapest month to fly to Brussels Bruxelles-National Airport?

The cheapest month to fly to Brussels Bruxelles-National Airport from Chicago is in September. Flight prices, which tend to average around $578, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Brussels Bruxelles-National Airport from Chicago during April instead. Flights to Brussels Bruxelles-National Airport in April, while not as cheap as those in September, still average around $581.

What is the cheapest day to depart on your flight to Brussels Bruxelles-National Airport?

The cheapest day to depart from Chicago to Brussels Bruxelles-National Airport is on a Wednesday. Travelers who choose to depart for Brussels Bruxelles-National Airport on a Wednesday will often find tickets for as low as $1,098. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to Brussels Bruxelles-National Airport for around $1,378.

What is the cheapest time of day to depart on your flight to Brussels Bruxelles-National Airport?

Our most recent data shows that the best time of day to fly to Brussels Bruxelles-National Airport is in the evening. Flights from Chicago to Brussels Bruxelles-National Airport during this time can be as low as $579. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,186 on average. Flights to Brussels Bruxelles-National Airport from Chicago in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Chicago to Brussels Bruxelles-National flight route?

Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago - Brussels Bruxelles-National flight prices

How far in advance should I book a flight to Brussels Bruxelles-National Airport?

You are more likely to see cheaper flights to Brussels Bruxelles-National Airport from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport 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 Bruxelles-National Airport from Chicago for as low as $614 on momondo.

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

There are 3 cabin classes available to choose from on Chicago to Brussels Bruxelles-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Chicago to Brussels Bruxelles-National Airport flight prices changed over time?

As of September 2025, prices for Chicago to Brussels Bruxelles-National Airport flights are approximately 25% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Brussels Bruxelles-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Brussels Bruxelles-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Brussels Bruxelles-National Airport (CHI to BRU) flight deals and tips

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

Best Price Found

$612

Fastest flight time

8h 00m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun
The best one-way flight to Brussels Bruxelles-National Airport from Chicago in the past 72 hours is $612. The best round-trip flight deal from Chicago to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is $863.
The fastest flight from Chicago to Brussels Bruxelles-National Airport takes 8h 00m
Direct flights go from Chicago to Brussels Bruxelles-National Airport on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
Search flight deals

  • How far is Chicago to Brussels Bruxelles-National by plane?

    There are 4139.4 mi between Chicago and Brussels Bruxelles-National. Flights usually cover this in 11h 35m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Chicago to Brussels Bruxelles-National Airport?

    Prices for flights from Chicago to Brussels Bruxelles-National Airport are updated daily.

  • How many operators does momondo search for flights from Chicago to Brussels Bruxelles-National Airport?

  • How old do you have to be to fly from Chicago to Brussels Bruxelles-National Airport?

    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 Bruxelles-National Airport.

  • What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?

    The travel and health documents you'll need for your trip to Brussels Bruxelles-National Airport 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 Bruxelles-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago to Brussels Bruxelles-National Airport?

  • What is the most popular airline from Chicago to Brussels Bruxelles-National Airport?

Best airlines flying from Chicago to Brussels Bruxelles-National Airport

Compare and see reviews for airlines that fly from Chicago to Brussels Bruxelles-National Airport with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $312Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $405Free CancellationRating
7.0
545 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
3,965 reviews
Search Turkish Airlines flights
KLMPriceFrom $506Free CancellationRating
7.8
1,386 reviews
Search KLM flights
Aer LingusPriceFrom $536Free CancellationRating
7.2
1,277 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,367 reviews
Search British Airways flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
LufthansaPriceFrom $728Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $744Free CancellationRating
7.1
1,977 reviews
Search TAP AIR PORTUGAL flights

  • United Airlines Flights From Chicago to Brussels Bruxelles-National Airport

    United Airlines flies from Chicago to Brussels Bruxelles-National Airport around 7 times per week, with 8,926 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Chicago to Brussels Bruxelles-National Airport in the last 72 hours was $590 (round-trip), much lower than the average airfare cost of $1,039 for United Airlines flights on this route.

  • Lufthansa Flights From Chicago to Brussels Bruxelles-National Airport

    Lufthansa is also a popular choice for this route. Lufthansa flight deals for Chicago to Brussels Bruxelles-National Airport start from as low as $728 round-trip, depending on your selected dates, with average Lufthansa deals seen on momondo around $1,110. Lufthansa operates 7 flights to Brussels Bruxelles-National Airport from Chicago in an average week. Users have rated it 6.8/10 across 7,409 reviews.

Traveling to a place near Brussels?

Book flights to Brussels if you plan to visit one of these locations
Bruges
Ghent
Leuven
Charleroi
Hasselt
Spa
Namur
Aalst
Dinant
Mons
Zaventem
Waterloo
Genk
Mechelen
Francorchamps
Knokke-Heist
Tournai
Durbuy
Oostkamp
Halle

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Brussels. momondo saves you time and could save you money on your trip.

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

Flights from Chicago to Brussels with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Chicago to Brussels?

Once all potential Chicago to Brussels flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Chicago to Brussels right now. Can momondo alert me if prices change?

Price alerts on flights to Brussels from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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