HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bruxelles-National

$237+ Cheap flights from Chicago (CHI) to Bruxelles-National (BRU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BRU
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Bruxelles-National with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Chicago to Brussels Bruxelles-National are usually found in April or February, booked 38 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Find flight deals from Chicago to Bruxelles-National

Cheapest flights from Chicago to Bruxelles-National
Explore the most affordable flight options available from Chicago to Bruxelles-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:00 amORD - BRU
2 stops24h 30mScandinavian Airlines
Sun 12/1410:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 10/16$447
This FlightHub deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:10 amORD - BRU
2 stops24h 20mScandinavian Airlines
Sun 11/2310:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 10/16$450
This FlightHub deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:20 pmORD - BRU
2 stops56h 30mScandinavian Airlines
Tue 12/97:20 pmBRU - ORD
2 stops28h 25mScandinavian Airlines
Deal found 10/14$455
This Cheapflightsfares deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:20 pmORD - BRU
1 stop12h 10mScandinavian Airlines
Sun 12/710:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 10/15$457
This CrystalTravel deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:20 pmORD - BRU
1 stop17h 30mScandinavian Airlines
Sun 11/2310:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 10/15$459
This oojo deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:20 pmORD - BRU
1 stop12h 10mScandinavian Airlines
Tue 12/97:20 pmBRU - ORD
2 stops28h 25mScandinavian Airlines
Deal found 10/14$461
This Scandinavian Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:00 amORD - BRU
2 stops19h 40mScandinavian Airlines
Sun 11/2310:20 amBRU - ORD
1 stop13h 25mScandinavian Airlines
Deal found 10/15$466
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:00 amMDW - BRU
2 stops13h 50mMultiple Airlines
Wed 12/3110:00 amBRU - MDW
2 stops32h 06mMultiple Airlines
Deal found 10/15$1,052
This Delta deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/161:15 pmMDW - BRU
2 stops12h 45mDelta
Sun 11/238:05 amBRU - MDW
2 stops15h 33mDelta
Deal found 10/15$1,080
This Icelandair deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:45 pmMDW - BRU
2 stops13h 10mMultiple Airlines
Fri 12/1212:50 pmBRU - MDW
2 stops18h 15mMultiple Airlines
Deal found 10/15$1,089
This Delta deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/149:34 amMDW - BRU
2 stops16h 26mDelta
Sun 12/286:15 amBRU - MDW
2 stops18h 04mDelta
Deal found 10/15$1,130
This Delta deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/291:15 pmMDW - BRU
2 stops18h 00mDelta
Sat 12/68:05 amBRU - MDW
2 stops17h 01mDelta
Deal found 10/15$1,135

Cheap flight deals from Chicago to Bruxelles-National

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Bruxelles-National (BRU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$438
(CrystalTravel)

One-way from

$237
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$621

Good round-trip deal

$1,002 or less

Good one-way deal

$751 or less
Provider with most accurate pricing for Chicago (CHI)-Brussels Bruxelles-National flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Brussels Bruxelles-National flights.
Search Deals
From Chicago (CHI) to Brussels Bruxelles-National
Search Deals
One-way flight from Chicago (CHI) to Brussels Bruxelles-National
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($275 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Brussels Bruxelles-National.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Brussels Bruxelles-National.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Bruxelles-National 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, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
Use the filters below to find and compare flights from Chicago to Brussels Bruxelles-National Airport that are best for you.

Fly from

Chicago

Fly to

Bruxelles-National

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 11/6

7:20 pm-6:40 pm

2 stops16h 20m

Brussels Bruxelles-National

Mon 11/10

10:20 am-4:45 pm

1 stop13h 25m

$524

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 3/20

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Wed 3/25

10:20 am-5:45 pm

1 stop13h 25m

$529

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 4/13

7:15 pm-2:35 pm

1 stop12h 20m

Brussels Bruxelles-National

Tue 4/28

8:30 pm-4:10 pm

1 stop26h 40m

$529

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 11/13

10:40 am-9:40 am

2 stops16h 00m

Brussels Bruxelles-National

Thu 11/20

10:20 am-4:45 pm

1 stop13h 25m

$536

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 3/19

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Mon 3/30

10:20 am-4:10 pm

1 stop12h 50m

$559

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 3/18

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Thu 3/26

10:20 am-5:45 pm

1 stop13h 25m

$559

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 3/22

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Mon 3/30

10:20 am-4:10 pm

1 stop12h 50m

$569

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 3/21

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Mon 3/30

10:20 am-4:10 pm

1 stop12h 50m

$569

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 3/22

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Thu 3/26

10:20 am-5:45 pm

1 stop13h 25m

$569

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 3/20

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Thu 3/26

10:20 am-5:45 pm

1 stop13h 25m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 33 results
1
2
3
4

Compare providers for flights from Chicago to Bruxelles-National

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Bruxelles-National in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Brussels Bruxelles-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Brussels Bruxelles-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Brussels Bruxelles-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Brussels Bruxelles-National Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Brussels Bruxelles-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Bruxelles-National

Have a flexible travel schedule? Discover the best time to fly to Bruxelles-National from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Brussels Bruxelles-National Airport

How far ahead should I book a flight from Chicago to Brussels Bruxelles-National Airport?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Bruxelles-National. Price data was last updated on October 10, 2025.

To ensure you get the cheapest price possible for a flight from Chicago to Brussels Bruxelles-National Airport, you should look to book at least 38 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Chicago to Brussels Bruxelles-National Airport?

Currently, September is the cheapest month in which you can book a flight from Chicago to Brussels Bruxelles-National Airport (average of $293). Flying from Chicago to Brussels Bruxelles-National Airport in August is currently the most expensive (average of $496). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to BRU?

Find hourly flight availability from Chicago to Bruxelles-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

It’s typically best to fly out from Chicago to Brussels Bruxelles-National Airport in the evening. Doing so could potentially save you 48% on the flight price compared to flying at noon, which is usually more expensive.

Weekly flight availability from Chicago to Brussels Bruxelles-National Airport

Explore weekly flight availability from Chicago to Bruxelles-National. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated October 16, 2025.

The most flights from CHI to BRU are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

How much does it cost to fly round-trip from Chicago to Brussels Bruxelles-National Airport?

What’s the top layover airport for flights from Chicago to Brussels Bruxelles-National Airport?

Share of 1-stop round-trip flights from Chicago to Brussels Bruxelles-National Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Copenhagen (CPH) – chosen by Cheapflights users on 33% of 1-stop itineraries from Chicago to Brussels Bruxelles-National Airport on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to Brussels Bruxelles-National Airport?

Average round-trip fare for 1-stop flights from Chicago to Brussels Bruxelles-National Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Copenhagen (CPH) is the most affordable 1-stop option, with an average round-trip price of $295.

What’s the fastest layover option from Chicago to Brussels Bruxelles-National Airport?

Shortest average travel time for 1-stop one-way flights from Chicago to Brussels Bruxelles-National Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Dublin (DUB) have the shortest average one-way travel time for 1-stop routes: 10h 55m.

Which airport typically offers the quickest layover for flights from Chicago to Brussels Bruxelles-National Airport?

Average layover duration for 1-stop one-way flights from Chicago to Brussels Bruxelles-National Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via New York (JFK) offer the fastest connection on this route, with an average layover time of 2h 03m.

Reviews of airlines servicing Bruxelles-National

Get insights into the airlines that provide service to Bruxelles-National. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bruxelles-National. Reviews last updated October 16, 2025.
See what other customers who have flown with Scandinavian Airlines, United Airlines, and Turkish Airlines from Chicago to Brussels Bruxelles-National Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,533 reviews

Comfort

7.3

Entertainment

6.6

Overall

7.4

Crew

8.0

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,533 reviews
Scandinavian Airlines
7.4
Good
1,533 reviews

Comfort

7.3

Entertainment

6.6

Overall

7.4

Crew

8.0

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
United Airlines
7.4
Good
8,982 reviews
Scandinavian Airlines
7.4
Good
1,533 reviews

Comfort

7.3

Entertainment

6.6

Overall

7.4

Crew

8.0

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Turkish Airlines
7.3
Good
4,010 reviews
Scandinavian Airlines
7.4
Good
1,533 reviews

Comfort

7.3

Entertainment

6.6

Overall

7.4

Crew

8.0

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Aer Lingus
7.2
Good
1,341 reviews
Scandinavian Airlines
7.4
Good
1,533 reviews

Comfort

7.3

Entertainment

6.6

Overall

7.4

Crew

8.0

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Icelandair
7.0
Good
556 reviews
Scandinavian Airlines
7.4
Good
1,533 reviews

Comfort

7.3

Entertainment

6.6

Overall

7.4

Crew

8.0

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Bruxelles-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago to Brussels Bruxelles-National Airport?

    Scandinavian Airlines and Delta can get you from Chicago to Brussels Bruxelles-National Airport in just under 12h 35m. Your travel time can differ by up to 3h 45m. Chicago and Brussels Bruxelles-National Airport are separated by a distance of 4148 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Chicago to Brussels Bruxelles-National Airport round-trip?

    Flying on Scandinavian Airlines is currently your cheapest option to Brussels Bruxelles-National Airport, with prices starting at $310. Additional round-trip tickets that might be worth considering are offered by Icelandair and Turkish Airlines, with the lowest prices starting at $428 and $492, respectively. Users have found that Scandinavian Airlines is 61% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Chicago to Brussels Bruxelles-National Airport?

    No one likes to see their flight delayed. When booking a flight from Chicago to Brussels Bruxelles-National Airport consider choosing Air Canada (65%), Austrian Airlines (65%) or Brussels Airlines (65%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Chicago to Brussels Bruxelles-National Airport?

    Looking for the cheapest flight from Chicago to Brussels Bruxelles-National Airport? While on average our users pay $2,497, our data indicates the cheapest price to be $605. The most popular route (Chicago O'Hare Intl - Brussels Bruxelles-National), is priced around $448.

  • Can I find deals for flights from Chicago to Bruxelles-National that include hotel bookings?

    Yes. In addition to deals on Chicago to Bruxelles-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Bruxelles-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Bruxelles-National.

  • Can I find deals for business class flights from Chicago to Bruxelles-National?

    Yes. Cheapflights offers flight deals from Chicago to Bruxelles-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to Brussels Bruxelles-National Airport?

    Currently, September is the cheapest month in which you can book a flight from Chicago to Brussels Bruxelles-National Airport (average of $293). Flying from Chicago to Brussels Bruxelles-National Airport in August is currently the most expensive (average of $496). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Brussels Bruxelles-National Airport?

Book flights to Brussels Bruxelles-National Airport if you plan to visit one of these locations
Charleroi
Mons
Hasselt
Mechelen
Zaventem

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Bruxelles-National

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Bruxelles-National flights
Midway to Bruxelles-National flights
O'Hare Intl to Charleroi Brussels flights
St. Louis to Bruxelles-National flights
St. Louis to Charleroi Brussels flights

Top 9 airlines flying from Chicago to Bruxelles-National

Discover the top 9 airlines that operate flights from Chicago to Bruxelles-National. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$310Average$490FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$428Average$581FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$492Average$807FlexibilityNo cancel feeOn-time77%
KLMCheapest$506Average$828FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$551Average$692FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$581Average$780FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$590Average$1,041FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$744Average$890FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$754Average$1,306FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.