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Cheap flights from Chicago to Brussels from $262

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 10/20. 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
7:05 am - 9:40 amORD-BRU
19h 35m2 stops
Scandinavian Airlines Logo
8:30 pm - 9:05 pmBRU-ORD
30h 35m1 stop
$405Scandinavian Airlines
Find Deal
mar., oct. 21 - mar., oct. 28
Scandinavian Airlines Logo
7:05 am - 9:40 amORD-BRU
19h 35m2 stops
Scandinavian Airlines Logo
8:30 pm - 9:05 pmBRU-ORD
30h 35m1 stop
$406Scandinavian Airlines
Find Deal
mar., oct. 21 - mar., oct. 28
Icelandair Logo
6:30 pm - 11:55 amORD-BRU
10h 25m1 stop
Icelandair Logo
12:50 pm - 5:20 pmBRU-ORD
11h 30m1 stop
$423Icelandair
Find Deal
mié., ene. 28 - vie., feb. 6
Icelandair Logo
6:30 pm - 11:55 amORD-BRU
10h 25m1 stop
Icelandair Logo
12:50 pm - 5:20 pmBRU-ORD
11h 30m1 stop
$448Icelandair
Find Deal
jue., ene. 29 - vie., feb. 6
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
$475TAP AIR PORTUGAL
Find Deal
dom., dic. 14 - mar., dic. 23
TAP AIR PORTUGAL Logo
9:25 pm - 11:00 amORD-BRU
31h 35m1 stop
TAP AIR PORTUGAL Logo
5:55 pm - 3:00 pmBRU-ORD
28h 05m1 stop
$506TAP AIR PORTUGAL
Find Deal
dom., oct. 26 - mar., nov. 4
Delta Logo
9:35 am - 8:00 amMDW-BRU
16h 25m2 stops
Delta Logo
11:00 am - 10:14 pmBRU-MDW
18h 14m2 stops
$771Delta
Find Deal
dom., oct. 26 - mar., nov. 4
Delta Logo
1:08 pm - 7:35 amMDW-BRU
12h 27m2 stops
Delta Logo
11:00 am - 10:14 pmBRU-MDW
18h 14m2 stops
$815Delta
Find Deal
mar., oct. 28 - mar., nov. 4
KLM Logo
6:23 pm - 2:15 pmMDW-BRU
13h 52m2 stops
KLM Logo
8:05 am - 4:14 pmBRU-MDW
15h 09m2 stops
$892KLM
Find Deal
lun., oct. 27 - mar., nov. 4
KLM Logo
6:00 am - 8:40 amMDW-BRU
19h 40m1 stop
KLM Logo
10:45 am - 9:36 pmBRU-MDW
17h 51m2 stops
$2,021KLM
Find Deal
sáb., sep. 20 - mar., sep. 23

Delta flights from Chicago to Brussels Bruxelles-National Airport

Our best Delta deals on Chicago to Brussels Bruxelles-National Airport flight tickets
Delta
Oct 26
MDW9:35 amChicago Midway
16h 25m
2 stops
BRU8:00 amBrussels Bruxelles-National
Nov 4
BRU11:00 amBrussels Bruxelles-National
18h 14m
2 stops
MDW10:14 pmChicago Midway
$771
Find similar
Delta
Oct 28
MDW1:08 pmChicago Midway
12h 27m
2 stops
BRU7:35 amBrussels Bruxelles-National
Nov 4
BRU11:00 amBrussels Bruxelles-National
18h 14m
2 stops
MDW10:14 pmChicago Midway
$815
Find similar
Delta
Jan 1
MDW9:29 amChicago Midway
17h 41m
2 stops
BRU10:10 amBrussels Bruxelles-National
Jan 16
BRU8:05 amBrussels Bruxelles-National
15h 20m
2 stops
MDW4:25 pmChicago Midway
$905
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
Oct 21
ORD7:05 amChicago O'Hare Intl
19h 35m
2 stops
BRU9:40 amBrussels Bruxelles-National
Oct 28
BRU8:30 pmBrussels Bruxelles-National
30h 35m
1 stop
ORD9:05 pmChicago O'Hare Intl
$405
Find similar
Scandinavian Airlines
Oct 21
ORD7:05 amChicago O'Hare Intl
19h 35m
2 stops
BRU9:40 amBrussels Bruxelles-National
Oct 28
BRU8:30 pmBrussels Bruxelles-National
30h 35m
1 stop
ORD9:05 pmChicago O'Hare Intl
$406
Find similar
Scandinavian Airlines
Nov 18
ORD7:10 amChicago O'Hare Intl
24h 20m
2 stops
BRU2:30 pmBrussels Bruxelles-National
Nov 27
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
$411
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 septiembre 8, 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

mar. 10/21

7:05 am-9:40 am

2 stops19h 35m

Brussels Bruxelles-National

mar. 10/28

8:30 pm-9:05 pm

1 stop30h 35m

$405

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mar. 10/21

7:05 am-9:40 am

2 stops19h 35m

Brussels Bruxelles-National

mar. 10/28

8:30 pm-9:05 pm

1 stop30h 35m

$406

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mié. 1/28

6:30 pm-11:55 am

1 stop10h 25m

Brussels Bruxelles-National

vie. 2/6

12:50 pm-5:20 pm

1 stop11h 30m

$423

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

jue. 1/29

6:30 pm-11:55 am

1 stop10h 25m

Brussels Bruxelles-National

vie. 2/6

12:50 pm-5:20 pm

1 stop11h 30m

$448

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

$475

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

dom. 10/26

9:25 pm-11:00 am

1 stop31h 35m

Brussels Bruxelles-National

mar. 11/4

5:55 pm-3:00 pm

1 stop28h 05m

$506

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

dom. 10/26

9:35 am-8:00 am

2 stops16h 25m

Brussels Bruxelles-National

mar. 11/4

11:00 am-10:14 pm

2 stops18h 14m

$771

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

mar. 10/28

1:08 pm-7:35 am

2 stops12h 27m

Brussels Bruxelles-National

mar. 11/4

11:00 am-10:14 pm

2 stops18h 14m

$815

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

lun. 10/27

6:23 pm-2:15 pm

2 stops13h 52m

Brussels Bruxelles-National

mar. 11/4

8:05 am-4:14 pm

2 stops15h 09m

$892

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

sáb. 9/20

6:00 am-8:40 am

1 stop19h 40m

Brussels Bruxelles-National

mar. 9/23

10:45 am-9:36 pm

2 stops17h 51m

$2,021

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 October. Flight prices, which tend to average around $573, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, 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 October, 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 $1,095. 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 $1,346.

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 $1,182 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 $782 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 $597 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 13% 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

$599

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 $599. The best round-trip flight deal from Chicago to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is $838.
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 10h 25m, 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
1,483 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $405Free CancellationRating
7.0
546 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
3,963 reviews
Search Turkish Airlines flights
KLMPriceFrom $506Free CancellationRating
7.8
1,386 reviews
Search KLM flights
Aer LingusPriceFrom $536Free CancellationRating
7.2
1,262 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
8,944 reviews
Search United Airlines flights
LufthansaPriceFrom $728Free CancellationRating
6.8
7,409 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 8,944 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 $1,035 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
Ghent
Bruges
Leuven
Charleroi
Hasselt
Spa
Aalst
Namur
Mons
Zaventem
Dinant
Waterloo
Genk
Mechelen
Francorchamps
Knokke-Heist
Tournai
Durbuy
Oostkamp

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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