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Cheap flights from Chicago to Brussels from $365

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 11/17. 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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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 - 9:40 am
ORD
-
BRU
31h 25m
1 stop
Scandinavian Airlines Logo
10:20 am - 4:45 pm
BRU
-
ORD
13h 25m
1 stop
$580Scandinavian Airlines
Sun, Nov 1 - Sun, Nov 15
Scandinavian Airlines Logo
7:15 pm - 10:50 am
ORD
-
BRU
32h 35m
2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pm
BRU
-
ORD
13h 25m
1 stop
$581Scandinavian Airlines
Sun, Nov 1 - Sun, Nov 15
Scandinavian Airlines Logo
7:15 pm - 11:00 pm
ORD
-
BRU
20h 45m
1 stop
Scandinavian Airlines Logo
10:20 am - 4:45 pm
BRU
-
ORD
13h 25m
1 stop
$595Scandinavian Airlines
Sun, Oct 11 - Tue, Nov 10
Scandinavian Airlines Logo
7:15 pm - 2:35 pm
ORD
-
BRU
12h 20m
1 stop
Scandinavian Airlines Logo
8:30 pm - 5:45 pm
BRU
-
ORD
27h 15m
1 stop
$596Scandinavian Airlines
Sun, Oct 18 - Sun, Oct 25
Scandinavian Airlines Logo
7:15 pm - 11:00 pm
ORD
-
BRU
20h 45m
1 stop
Scandinavian Airlines Logo
7:00 pm - 4:45 pm
BRU
-
ORD
28h 45m
2 stops
$598Scandinavian Airlines
Sun, Oct 11 - Tue, Nov 10
Air France Logo
1:05 pm - 10:55 am
MDW
-
BRU
14h 50m
1 stop
Air France Logo
12:55 pm - 9:45 pm
BRU
-
MDW
15h 50m
1 stop
$1,037Air France
Sun, Nov 1 - Sun, Nov 15
Delta Logo
9:30 am - 10:55 am
MDW
-
BRU
18h 25m
2 stops
Delta Logo
12:55 pm - 9:45 pm
BRU
-
MDW
15h 50m
1 stop
$1,041Delta
Sun, Nov 1 - Sun, Nov 15
Delta Logo
12:30 pm - 10:10 am
MDW
-
BRU
14h 40m
2 stops
Delta Logo
8:05 am - 6:37 pm
BRU
-
MDW
17h 32m
2 stops
$1,104Delta
Fri, Nov 6 - Sat, Nov 14
Multiple Airlines Logo
4:50 pm - 12:55 pm
MDW
-
BRU
13h 05m
2 stops
Multiple Airlines Logo
12:50 pm - 10:40 pm
BRU
-
MDW
16h 50m
2 stops
$1,111Multiple Airlines
Sun, Oct 11 - Tue, Nov 10
Multiple Airlines Logo
10:15 am - 7:50 am
MDW
-
BRU
14h 35m
2 stops
Multiple Airlines Logo
9:30 am - 6:31 pm
BRU
-
MDW
16h 01m
2 stops
$1,142Multiple Airlines
Sun, Jun 7 - Fri, Jun 12

KLM flights from Chicago to Brussels Bruxelles-National Airport

Our best KLM deals on Chicago to Brussels Bruxelles-National Airport flight tickets
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
$1,197
KLM
Jul 9
MDW11:05 amChicago Midway
13h 35m
1 stop
BRU7:40 amBrussels Bruxelles-National
Jul 16
BRU9:45 amBrussels Bruxelles-National
13h 30m
1 stop
MDW4:15 pmChicago Midway
$1,208
KLM
Sep 20
MDW1:00 pmChicago Midway
11h 40m
1 stop
BRU7:40 amBrussels Bruxelles-National
Sep 29
BRU9:45 amBrussels Bruxelles-National
13h 26m
1 stop
MDW4:11 pmChicago Midway
$1,267

Delta flights from Chicago to Brussels Bruxelles-National Airport

Our best Delta deals on Chicago to Brussels Bruxelles-National Airport flight tickets
Delta
Nov 1
MDW9:30 amChicago Midway
18h 25m
2 stops
BRU10:55 amBrussels Bruxelles-National
Nov 15
BRU12:55 pmBrussels Bruxelles-National
15h 50m
1 stop
MDW9:45 pmChicago Midway
$1,041
Delta
Nov 6
MDW12:30 pmChicago Midway
14h 40m
2 stops
BRU10:10 amBrussels Bruxelles-National
Nov 14
BRU8:05 amBrussels Bruxelles-National
17h 32m
2 stops
MDW6:37 pmChicago Midway
$1,104
Delta
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
$1,137

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 28, 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

Sun 11/1

7:15 pm-9:40 am

1 stop31h 25m

Brussels Bruxelles-National

Sun 11/15

10:20 am-4:45 pm

1 stop13h 25m

$580

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 11/1

7:15 pm-10:50 am

2 stops32h 35m

Brussels Bruxelles-National

Sun 11/15

10:20 am-4:45 pm

1 stop13h 25m

$581

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 10/11

7:15 pm-11:00 pm

1 stop20h 45m

Brussels Bruxelles-National

Tue 11/10

10:20 am-4:45 pm

1 stop13h 25m

$595

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 10/18

7:15 pm-2:35 pm

1 stop12h 20m

Brussels Bruxelles-National

Sun 10/25

8:30 pm-5:45 pm

1 stop27h 15m

$596

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 10/11

7:15 pm-11:00 pm

1 stop20h 45m

Brussels Bruxelles-National

Tue 11/10

7:00 pm-4:45 pm

2 stops28h 45m

$598

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 11/1

1:05 pm-10:55 am

1 stop14h 50m

Brussels Bruxelles-National

Sun 11/15

12:55 pm-9:45 pm

1 stop15h 50m

$1,037

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 11/1

9:30 am-10:55 am

2 stops18h 25m

Brussels Bruxelles-National

Sun 11/15

12:55 pm-9:45 pm

1 stop15h 50m

$1,041

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Fri 11/6

12:30 pm-10:10 am

2 stops14h 40m

Brussels Bruxelles-National

Sat 11/14

8:05 am-6:37 pm

2 stops17h 32m

$1,104
Quickest round-trip

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 10/11

4:50 pm-12:55 pm

2 stops13h 05m

Brussels Bruxelles-National

Tue 11/10

12:50 pm-10:40 pm

2 stops16h 50m

$1,111

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 6/7

10:15 am-7:50 am

2 stops14h 35m

Brussels Bruxelles-National

Fri 6/12

9:30 am-6:31 pm

2 stops16h 01m

$1,142

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 $1,051. 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 $784 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.

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

There are 3 cabin classes available to choose from on Chicago to Brussels Bruxelles-National Airport 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?

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

8h 00m

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 $1,398.
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

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 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
IcelandairPriceFrom $418Free CancellationRating
7.0
662 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $433Free CancellationRating
7.4
1,796 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom $444Free CancellationRating
7.2
2,262 reviews
Search TAP AIR PORTUGAL flights
Aer LingusPriceFrom $481Free CancellationRating
7.3
1,587 reviews
Search Aer Lingus flights
Turkish AirlinesPriceFrom $582Free CancellationRating
7.4
4,395 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $589Free CancellationRating
7.4
9,751 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $752Free CancellationRating
7.2
408 reviews
Search Brussels Airlines flights
LufthansaPriceFrom $969Free CancellationRating
6.8
8,032 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 9,760 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 $589 (round-trip), much lower than the average airfare cost of $1,133 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 7.2/10 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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