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Cheap flights from Chicago O'Hare Intl Airport to Brussels from $268

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 O'Hare Intl Airport to Brussels departing on 12/3. 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 O'Hare Intl Airport to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
10:24 am - 9:40 amORD-BRU
16h 16m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$411Scandinavian Airlines
Find Deal
vie., ene. 30 - lun., feb. 9
Scandinavian Airlines Logo
10:24 am - 9:40 amORD-BRU
16h 16m2 stops
Scandinavian Airlines Logo
7:45 pm - 4:45 pmBRU-ORD
28h 00m2 stops
$417Scandinavian Airlines
Find Deal
vie., ene. 30 - dom., feb. 8
Scandinavian Airlines Logo
10:24 am - 9:40 amORD-BRU
16h 16m2 stops
Scandinavian Airlines Logo
10:20 am - 4:55 pmBRU-ORD
13h 35m1 stop
$420Scandinavian Airlines
Find Deal
vie., ene. 30 - dom., feb. 8
Scandinavian Airlines Logo
7:01 am - 9:40 amORD-BRU
19h 39m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$437Scandinavian Airlines
Find Deal
mié., ene. 28 - vie., feb. 6
TAP AIR PORTUGAL Logo
7:10 pm - 5:05 pmORD-BRU
14h 55m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 2:45 pmBRU-ORD
15h 45m1 stop
$445TAP AIR PORTUGAL
Find Deal
mié., dic. 3 - dom., dic. 7
Scandinavian Airlines Logo
7:20 pm - 9:40 amORD-BRU
31h 20m1 stop
Scandinavian Airlines Logo
11:30 am - 4:45 pmBRU-ORD
36h 15m2 stops
$448Scandinavian Airlines
Find Deal
mié., ene. 28 - vie., feb. 6
TAP AIR PORTUGAL Logo
8:15 pm - 11:00 amORD-BRU
31h 45m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 2:45 pmBRU-ORD
15h 45m1 stop
$449TAP AIR PORTUGAL
Find Deal
vie., nov. 28 - dom., dic. 7
Scandinavian Airlines Logo
7:20 pm - 9:40 amORD-BRU
31h 20m1 stop
Scandinavian Airlines Logo
3:10 pm - 4:45 pmBRU-ORD
32h 35m1 stop
$451Scandinavian Airlines
Find Deal
vie., ene. 30 - dom., feb. 8
Scandinavian Airlines Logo
7:20 pm - 9:40 amORD-BRU
31h 20m1 stop
Scandinavian Airlines Logo
7:45 pm - 4:45 pmBRU-ORD
28h 00m2 stops
$452Scandinavian Airlines
Find Deal
vie., ene. 9 - dom., ene. 18
Scandinavian Airlines Logo
7:20 pm - 10:50 amORD-BRU
32h 30m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pmBRU-ORD
36h 15m2 stops
$453Scandinavian Airlines
Find Deal
mié., ene. 28 - vie., feb. 6

Scandinavian Airlines flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport flight tickets
Scandinavian Airlines
Jan 30
ORD10:24 amChicago O'Hare Intl
16h 16m
2 stops
BRU9:40 amBrussels Bruxelles-National
Feb 9
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
$411
Find similar
Scandinavian Airlines
Jan 30
ORD10:24 amChicago O'Hare Intl
16h 16m
2 stops
BRU9:40 amBrussels Bruxelles-National
Feb 8
BRU7:45 pmBrussels Bruxelles-National
28h 00m
2 stops
ORD4:45 pmChicago O'Hare Intl
$417
Find similar
Scandinavian Airlines
Jan 30
ORD10:24 amChicago O'Hare Intl
16h 16m
2 stops
BRU9:40 amBrussels Bruxelles-National
Feb 8
BRU10:20 amBrussels Bruxelles-National
13h 35m
1 stop
ORD4:55 pmChicago O'Hare Intl
$420
Find similar

TAP AIR PORTUGAL flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport

Our best TAP AIR PORTUGAL deals on Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport flight tickets
TAP AIR PORTUGAL
Dec 3
ORD7:10 pmChicago O'Hare Intl
14h 55m
1 stop
BRU5:05 pmBrussels Bruxelles-National
Dec 7
BRU6:00 amBrussels Bruxelles-National
15h 45m
1 stop
ORD2:45 pmChicago O'Hare Intl
$445
Find similar
TAP AIR PORTUGAL
Nov 28
ORD8:15 pmChicago O'Hare Intl
31h 45m
1 stop
BRU11:00 amBrussels Bruxelles-National
Dec 7
BRU6:00 amBrussels Bruxelles-National
15h 45m
1 stop
ORD2:45 pmChicago O'Hare Intl
$449
Find similar
TAP AIR PORTUGAL
Dec 3
ORD7:10 pmChicago O'Hare Intl
14h 55m
1 stop
BRU5:05 pmBrussels Bruxelles-National
Jan 18
BRU6:00 amBrussels Bruxelles-National
15h 45m
1 stop
ORD2:45 pmChicago O'Hare Intl
$456
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 octubre 30, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport 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

vie. 1/30

10:24 am-9:40 am

2 stops16h 16m

Brussels Bruxelles-National

lun. 2/9

10:20 am-4:45 pm

1 stop13h 25m

$411

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

vie. 1/30

10:24 am-9:40 am

2 stops16h 16m

Brussels Bruxelles-National

dom. 2/8

7:45 pm-4:45 pm

2 stops28h 00m

$417

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

vie. 1/30

10:24 am-9:40 am

2 stops16h 16m

Brussels Bruxelles-National

dom. 2/8

10:20 am-4:55 pm

1 stop13h 35m

$420

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mié. 1/28

7:01 am-9:40 am

2 stops19h 39m

Brussels Bruxelles-National

vie. 2/6

10:20 am-4:45 pm

1 stop13h 25m

$437

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mié. 12/3

7:10 pm-5:05 pm

1 stop14h 55m

Brussels Bruxelles-National

dom. 12/7

6:00 am-2:45 pm

1 stop15h 45m

$445

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mié. 1/28

7:20 pm-9:40 am

1 stop31h 20m

Brussels Bruxelles-National

vie. 2/6

11:30 am-4:45 pm

2 stops36h 15m

$448

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

vie. 11/28

8:15 pm-11:00 am

1 stop31h 45m

Brussels Bruxelles-National

dom. 12/7

6:00 am-2:45 pm

1 stop15h 45m

$449

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

vie. 1/30

7:20 pm-9:40 am

1 stop31h 20m

Brussels Bruxelles-National

dom. 2/8

3:10 pm-4:45 pm

1 stop32h 35m

$451

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

vie. 1/9

7:20 pm-9:40 am

1 stop31h 20m

Brussels Bruxelles-National

dom. 1/18

7:45 pm-4:45 pm

2 stops28h 00m

$452

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

mié. 1/28

7:20 pm-10:50 am

2 stops32h 30m

Brussels Bruxelles-National

vie. 2/6

11:30 am-4:45 pm

2 stops36h 15m

$453

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 O'Hare Intl Airport 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 O'Hare Intl Airport is in September. Flight prices, which tend to average around $515, 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 O'Hare Intl Airport during February instead. Flights to Brussels Bruxelles-National Airport in February, while not as cheap as those in September, still average around $634.

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

The cheapest day to depart from Chicago O'Hare Intl Airport 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 $1,098. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport for around $1,411.

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 O'Hare Intl Airport 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 $1,202 on average. Flights to Brussels Bruxelles-National Airport from Chicago O'Hare Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Chicago O'Hare Intl to Brussels Bruxelles-National flight route?

Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago O'Hare Intl - 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 O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around $795 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 O'Hare Intl Airport for as low as $616 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Brussels Bruxelles-National flights?

There are 3 cabin classes available to choose from on Chicago O'Hare Intl 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 O'Hare Intl Airport to Brussels Bruxelles-National Airport flight prices changed over time?

As of October 2025, prices for Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport flights are approximately 38% more expensive when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Brussels Bruxelles-National Airport (ORD to BRU) flight deals and tips

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

Best Price Found

$805

Fastest flight time

8h 00m

Direct flights

Every day
The best one-way flight to Brussels Bruxelles-National Airport from Chicago O'Hare Intl Airport in the past 72 hours is $805. The best round-trip flight deal from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is $981.
The fastest flight from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport takes 8h 00m
Direct flights go from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport every day.
Search flight deals

  • How far is Chicago O'Hare Intl to Brussels Bruxelles-National by plane?

    Chicago O'Hare Intl and Brussels Bruxelles-National are 4144.8 mi apart from one another. Flights usually cover this in 12h 10m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport are updated daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport.

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

    The required travel and health documents for your Brussels Bruxelles-National Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Brussels Bruxelles-National Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Best airlines flying from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $310Free CancellationRating
7.4
1,548 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $428Free CancellationRating
7.1
562 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
4,031 reviews
Search Turkish Airlines flights
Aer LingusPriceFrom $536Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,487 reviews
Search British Airways flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
TAP AIR PORTUGALPriceFrom $744Free CancellationRating
7.1
2,040 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $754Free CancellationRating
6.8
7,541 reviews
Search Lufthansa flights

  • United Airlines Flights From Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport

    United Airlines flight deals from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport start from $590 round-trip. Over the 4 United Airlines flights for this route in a normal week, average airfare is usually $1,035 round-trip - but some users have found much cheaper deals with momondo.

  • Lufthansa Flights From Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport

    Another popular option for Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport flights is Lufthansa (6.8/10, 7,541 ratings). Lufthansa flies from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport around 4 times per week, with deals starting from $754 round-trip and rising to an average price of around $1,641.

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
Zaventem
Namur
Dinant
Mons
Genk
Waterloo
Durbuy
Mechelen
Francorchamps
Knokke-Heist
Aalst
Tournai
Oostkamp
Halle

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Brussels. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Chicago to Brussels flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Brussels from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Brussels, momondo offers a useful price alert feature which will track prices for flights to Brussels from Chicago and alert you when they change.

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