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Cheap flights from Chicago to Brussels from $296

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 2/27. 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

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:10 pm - 10:50 am
ORD
-
BRU
32h 40m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pm
BRU
-
ORD
36h 15m2 stops
$459Scandinavian Airlines
Sun, Feb 15 - Tue, Feb 24
Scandinavian Airlines Logo
7:10 pm - 10:50 am
ORD
-
BRU
32h 40m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pm
BRU
-
ORD
36h 15m2 stops
$460Scandinavian Airlines
Sun, Feb 15 - Tue, Feb 24
Scandinavian Airlines Logo
7:10 pm - 10:50 am
ORD
-
BRU
32h 40m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pm
BRU
-
ORD
36h 15m2 stops
$461Scandinavian Airlines
Sun, Feb 15 - Tue, Feb 24
Scandinavian Airlines Logo
7:20 pm - 10:50 am
ORD
-
BRU
32h 30m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pm
BRU
-
ORD
36h 15m2 stops
$464Scandinavian Airlines
Mon, Jan 19 - Wed, Feb 25
Scandinavian Airlines Logo
7:20 pm - 10:50 am
ORD
-
BRU
32h 30m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pm
BRU
-
ORD
13h 25m1 stop
$466Scandinavian Airlines
Mon, Jan 19 - Wed, Feb 25
Scandinavian Airlines Logo
7:20 pm - 2:30 pm
ORD
-
BRU
12h 10m1 stop
Scandinavian Airlines Logo
10:20 am - 4:55 pm
BRU
-
ORD
13h 35m1 stop
$468Scandinavian Airlines
Mon, Jan 12 - Sun, Jan 25
KLM Logo
1:28 pm - 7:35 am
MDW
-
BRU
11h 07m2 stops
KLM Logo
10:45 am - 5:37 pm
BRU
-
MDW
13h 52m2 stops
$778KLM
Sun, Feb 15 - Tue, Feb 24
Delta Logo
1:29 pm - 7:35 am
MDW
-
BRU
11h 06m2 stops
Delta Logo
10:45 am - 5:37 pm
BRU
-
MDW
13h 52m2 stops
$779Delta
Sun, Feb 15 - Tue, Feb 24
Delta Logo
4:13 pm - 2:15 pm
MDW
-
BRU
15h 02m2 stops
Delta Logo
8:05 am - 5:37 pm
BRU
-
MDW
16h 32m2 stops
$787Delta
Sun, Feb 15 - Tue, Feb 24
Delta Logo
6:30 am - 7:35 am
MDW
-
BRU
18h 05m2 stops
Delta Logo
9:45 am - 4:36 pm
BRU
-
MDW
13h 51m1 stop
$826Delta
Tue, Apr 14 - Mon, May 4

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
May 2
ORD6:15 pmChicago O'Hare Intl
13h 50m
1 stop
BRU3:05 pmBrussels Bruxelles-National
May 13
BRU5:55 amBrussels Bruxelles-National
17h 05m
1 stop
ORD4:00 pmChicago O'Hare Intl
$515
Find similar
TAP AIR PORTUGAL
May 2
ORD6:15 pmChicago O'Hare Intl
13h 50m
1 stop
BRU3:05 pmBrussels Bruxelles-National
May 10
BRU5:55 amBrussels Bruxelles-National
17h 05m
1 stop
ORD4:00 pmChicago O'Hare Intl
$532
Find similar
TAP AIR PORTUGAL
May 13
ORD6:00 pmChicago O'Hare Intl
19h 05m
1 stop
BRU8:05 pmBrussels Bruxelles-National
May 19
BRU8:55 pmBrussels Bruxelles-National
26h 05m
1 stop
ORD4:00 pmChicago O'Hare Intl
$543
Find similar

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
Feb 15
ORD7:10 pmChicago O'Hare Intl
32h 40m
2 stops
BRU10:50 amBrussels Bruxelles-National
Feb 24
BRU11:30 amBrussels Bruxelles-National
36h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
$459
Find similar
Scandinavian Airlines
Feb 15
ORD7:10 pmChicago O'Hare Intl
32h 40m
2 stops
BRU10:50 amBrussels Bruxelles-National
Feb 24
BRU11:30 amBrussels Bruxelles-National
36h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
$460
Find similar
Scandinavian Airlines
Feb 15
ORD7:10 pmChicago O'Hare Intl
32h 40m
2 stops
BRU10:50 amBrussels Bruxelles-National
Feb 24
BRU11:30 amBrussels Bruxelles-National
36h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
$461
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 December 28, 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

Sun 2/15

7:10 pm-10:50 am

2 stops32h 40m

Brussels Bruxelles-National

Tue 2/24

11:30 am-4:45 pm

2 stops36h 15m

$459

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 2/15

7:10 pm-10:50 am

2 stops32h 40m

Brussels Bruxelles-National

Tue 2/24

11:30 am-4:45 pm

2 stops36h 15m

$460

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 2/15

7:10 pm-10:50 am

2 stops32h 40m

Brussels Bruxelles-National

Tue 2/24

11:30 am-4:45 pm

2 stops36h 15m

$461

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 1/19

7:20 pm-10:50 am

2 stops32h 30m

Brussels Bruxelles-National

Wed 2/25

11:30 am-4:45 pm

2 stops36h 15m

$464

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 1/19

7:20 pm-10:50 am

2 stops32h 30m

Brussels Bruxelles-National

Wed 2/25

10:20 am-4:45 pm

1 stop13h 25m

$466

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 1/12

7:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Sun 1/25

10:20 am-4:55 pm

1 stop13h 35m

$468

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 2/15

1:28 pm-7:35 am

2 stops11h 07m

Brussels Bruxelles-National

Tue 2/24

10:45 am-5:37 pm

2 stops13h 52m

$778

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 2/15

1:29 pm-7:35 am

2 stops11h 06m

Brussels Bruxelles-National

Tue 2/24

10:45 am-5:37 pm

2 stops13h 52m

$779

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 2/15

4:13 pm-2:15 pm

2 stops15h 02m

Brussels Bruxelles-National

Tue 2/24

8:05 am-5:37 pm

2 stops16h 32m

$787

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Tue 4/14

6:30 am-7:35 am

2 stops18h 05m

Brussels Bruxelles-National

Mon 5/4

9:45 am-4:36 pm

1 stop13h 51m

$826

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 cheapest month to fly to Brussels Bruxelles-National Airport?

The cheapest month to fly to Brussels Bruxelles-National Airport from Chicago is in April. Flight prices, which tend to average around $579, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Brussels Bruxelles-National Airport from Chicago during October instead. Flights to Brussels Bruxelles-National Airport in October, while not as cheap as those in April, still average around $600.

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 Tuesday. Travelers who choose to depart for Brussels Bruxelles-National Airport on a Tuesday will often find tickets for as low as $1,082. 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 $1,361.

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 $1,190 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 $770 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 $486 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 December 2025, prices for Chicago to Brussels Bruxelles-National Airport flights are approximately 90% more expensive 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

$723

Fastest flight time

8h 00m

Direct flights

Every day
The best one-way flight to Brussels Bruxelles-National Airport from Chicago in the past 72 hours is $723. The best round-trip flight deal from Chicago to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is $1,029.
The fastest flight from Chicago to Brussels Bruxelles-National Airport takes 8h 00m
Direct flights go from Chicago to Brussels Bruxelles-National Airport every day.
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 8h 00m, 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 $298Free CancellationRating
7.4
1,629 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $428Free CancellationRating
7.0
592 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $445Free CancellationRating
7.2
2,100 reviews
Search TAP AIR PORTUGAL flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
4,123 reviews
Search Turkish Airlines flights
Aer LingusPriceFrom $531Free CancellationRating
7.2
1,412 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,617 reviews
Search British Airways flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
9,117 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $986Free CancellationRating
7.2
377 reviews
Search Brussels Airlines 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 9,114 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 $1,034 for United Airlines flights on this route.

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

    Brussels Airlines is also a popular choice for this route. Brussels Airlines flight deals for Chicago to Brussels Bruxelles-National Airport start from as low as $986 round-trip, depending on your selected dates, with average Brussels Airlines deals seen on momondo around $1,763. Brussels Airlines operates 7 flights to Brussels Bruxelles-National Airport from Chicago in an average week. Users have rated it 7.2/10 across 377 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
Zaventem
Namur
Dinant
Genk
Mons
Durbuy
Waterloo
Aalst
Mechelen
Francorchamps
Knokke-Heist
Tournai
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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