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Cheap flights from Chicago to Brussels from $338

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 6/3. 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

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:15 pm - 7:50 pm
ORD
-
BRU
17h 35m
1 stop
Scandinavian Airlines Logo
10:20 am - 4:10 pm
BRU
-
ORD
12h 50m
1 stop
$649Scandinavian Airlines
Thu, Sep 24 - Fri, Oct 2
Scandinavian Airlines Logo
8:15 pm - 7:50 pm
ORD
-
BRU
17h 35m
1 stop
Scandinavian Airlines Logo
10:20 am - 4:45 pm
BRU
-
ORD
13h 25m
1 stop
$653Scandinavian Airlines
Thu, Oct 29 - Wed, Nov 4
Scandinavian Airlines Logo
8:15 pm - 2:30 pm
ORD
-
BRU
12h 15m
1 stop
Scandinavian Airlines Logo
8:30 pm - 5:45 pm
BRU
-
ORD
27h 15m
1 stop
$659Scandinavian Airlines
Sun, Oct 25 - Sat, Oct 31
Scandinavian Airlines Logo
8:15 pm - 11:30 am
ORD
-
BRU
33h 15m
2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pm
BRU
-
ORD
13h 25m
1 stop
$666Scandinavian Airlines
Thu, Oct 29 - Wed, Nov 4
Turkish Airlines Logo
11:25 am - 10:10 am
ORD
-
BRU
15h 45m
1 stop
Turkish Airlines Logo
7:20 am - 9:40 am
BRU
-
ORD
33h 20m
1 stop
$684Turkish Airlines
Wed, Sep 16 - Tue, Sep 22
Turkish Airlines Logo
8:10 pm - 9:25 pm
ORD
-
BRU
18h 15m
1 stop
Turkish Airlines Logo
6:55 pm - 9:40 am
BRU
-
ORD
21h 45m
1 stop
$687Turkish Airlines
Wed, Sep 16 - Tue, Sep 22
Multiple Airlines Logo
8:15 am - 11:50 am
MDW
-
BRU
20h 35m
2 stops
Multiple Airlines Logo
6:20 am - 8:50 pm
BRU
-
MDW
21h 30m
2 stops
$979Multiple Airlines
Mon, Aug 31 - Wed, Sep 9
Delta Logo
12:46 pm - 7:40 am
MDW
-
BRU
11h 54m
1 stop
Delta Logo
12:55 pm - 9:45 pm
BRU
-
MDW
15h 50m
1 stop
$1,058Delta
Sun, Aug 30 - Wed, Nov 4
Delta Logo
4:39 pm - 7:40 am
MDW
-
BRU
32h 01m
1 stop
Delta Logo
12:55 pm - 9:45 pm
BRU
-
MDW
15h 50m
1 stop
$1,073Delta
Sat, Aug 29 - Wed, Nov 4
Multiple Airlines Logo
2:20 pm - 12:55 pm
MDW
-
BRU
15h 35m
2 stops
Multiple Airlines Logo
12:50 pm - 10:40 pm
BRU
-
MDW
16h 50m
2 stops
$1,089Multiple Airlines
Tue, Sep 1 - Tue, Nov 3

Turkish Airlines flights from Chicago to Brussels Bruxelles-National Airport

Our best Turkish Airlines deals on Chicago to Brussels Bruxelles-National Airport flight tickets
Turkish Airlines
Sep 16
ORD11:25 amChicago O'Hare Intl
15h 45m
1 stop
BRU10:10 amBrussels Bruxelles-National
Sep 22
BRU7:20 amBrussels Bruxelles-National
33h 20m
1 stop
ORD9:40 amChicago O'Hare Intl
$684
Turkish Airlines
Sep 16
ORD8:10 pmChicago O'Hare Intl
18h 15m
1 stop
BRU9:25 pmBrussels Bruxelles-National
Sep 22
BRU6:55 pmBrussels Bruxelles-National
21h 45m
1 stop
ORD9:40 amChicago O'Hare Intl
$687
Turkish Airlines
Sep 16
ORD11:25 amChicago O'Hare Intl
15h 45m
1 stop
BRU10:10 amBrussels Bruxelles-National
Sep 22
BRU6:55 pmBrussels Bruxelles-National
21h 45m
1 stop
ORD9:40 amChicago O'Hare Intl
$688

KLM flights from Chicago to Brussels Bruxelles-National Airport

Our best KLM deals on Chicago to Brussels Bruxelles-National Airport flight tickets
KLM
Jul 19
MDW12:41 pmChicago Midway
11h 59m
1 stop
BRU7:40 amBrussels Bruxelles-National
Oct 1
BRU9:45 amBrussels Bruxelles-National
13h 42m
1 stop
MDW4:27 pmChicago Midway
$1,203
KLM
Jul 2
MDW11:05 amChicago Midway
13h 35m
1 stop
BRU7:40 amBrussels Bruxelles-National
Jul 7
BRU9:45 amBrussels Bruxelles-National
13h 30m
1 stop
MDW4:15 pmChicago Midway
$1,217
KLM
Jul 5
MDW6:00 amChicago Midway
18h 40m
1 stop
BRU7:40 amBrussels Bruxelles-National
Jul 14
BRU9:45 amBrussels Bruxelles-National
13h 30m
1 stop
MDW4:15 pmChicago Midway
$1,233

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 May 15, 2026.
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

Cheapest round-trip

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 9/24

7:15 pm-7:50 pm

1 stop17h 35m

Brussels Bruxelles-National

Fri 10/2

10:20 am-4:10 pm

1 stop12h 50m

$649

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 10/29

8:15 pm-7:50 pm

1 stop17h 35m

Brussels Bruxelles-National

Wed 11/4

10:20 am-4:45 pm

1 stop13h 25m

$653

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 10/25

8:15 pm-2:30 pm

1 stop12h 15m

Brussels Bruxelles-National

Sat 10/31

8:30 pm-5:45 pm

1 stop27h 15m

$659

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 10/29

8:15 pm-11:30 am

2 stops33h 15m

Brussels Bruxelles-National

Wed 11/4

10:20 am-4:45 pm

1 stop13h 25m

$666

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 9/16

11:25 am-10:10 am

1 stop15h 45m

Brussels Bruxelles-National

Tue 9/22

7:20 am-9:40 am

1 stop33h 20m

$684

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 9/16

8:10 pm-9:25 pm

1 stop18h 15m

Brussels Bruxelles-National

Tue 9/22

6:55 pm-9:40 am

1 stop21h 45m

$687

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Mon 8/31

8:15 am-11:50 am

2 stops20h 35m

Brussels Bruxelles-National

Wed 9/9

6:20 am-8:50 pm

2 stops21h 30m

$979
Quickest round-trip

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 8/30

12:46 pm-7:40 am

1 stop11h 54m

Brussels Bruxelles-National

Wed 11/4

12:55 pm-9:45 pm

1 stop15h 50m

$1,058

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sat 8/29

4:39 pm-7:40 am

1 stop32h 01m

Brussels Bruxelles-National

Wed 11/4

12:55 pm-9:45 pm

1 stop15h 50m

$1,073

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Tue 9/1

2:20 pm-12:55 pm

2 stops15h 35m

Brussels Bruxelles-National

Tue 11/3

12:50 pm-10:40 pm

2 stops16h 50m

$1,089

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 May. Flight prices, which tend to average around $129, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Brussels Bruxelles-National Airport from Chicago during November instead. Flights to Brussels Bruxelles-National Airport in November, while not as cheap as those in May, still average around $328.

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 $1,042. 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 $1,363.

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 from Chicago 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 $477 on momondo.

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

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

$638

Fastest flight time

7h 55m

Direct flights

Every day
The best one-way flight to Brussels Bruxelles-National Airport from Chicago in the past 72 hours is $638. The best round-trip flight deal from Chicago to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is $1,435.
The fastest flight from Chicago to Brussels Bruxelles-National Airport takes 7h 55m
Direct flights go from Chicago to Brussels Bruxelles-National Airport every day.
Search flight deals

Frequently asked questions about flying from Chicago to Brussels Bruxelles-National Airport

  • 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 7h 55m, 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
IcelandairPriceFrom $418Free CancellationRating
7.0
654 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $433Free CancellationRating
7.4
1,777 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom $444Free CancellationRating
7.2
2,253 reviews
Search TAP AIR PORTUGAL flights
Aer LingusPriceFrom $481Free CancellationRating
7.3
1,562 reviews
Search Aer Lingus flights
Turkish AirlinesPriceFrom $582Free CancellationRating
7.4
4,368 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,723 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $752Free CancellationRating
7.3
408 reviews
Search Brussels Airlines flights
LufthansaPriceFrom $969Free CancellationRating
6.8
8,003 reviews
Search Lufthansa 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 9,723 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 $586 (round-trip), much lower than the average airfare cost of $1,096 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 $752 round-trip, depending on your selected dates, with average Brussels Airlines deals seen on momondo around $1,765. Brussels Airlines operates 7 flights to Brussels Bruxelles-National Airport from Chicago in an average week. Users have rated it 7.3/10 across 408 reviews.

Traveling to a place near Brussels?

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