Belgium

$353+ Cheap flights from Chicago (CHI) to Belgium

CHI — BRU
Dec 5 — Dec 121
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Cheap flight deals from Chicago to Belgium

Cheapest flights from Chicago to Belgium

Mon 11/96:30 pm -
1 stop10h 25m
Tue 11/1712:50 pm -
1 stop11h 30m
Deal found 11/2$588
Mon 11/306:30 pm -
1 stop10h 25m
Tue 12/812:50 pm -
1 stop11h 30m
Deal found 11/2$602
Wed 12/96:30 pm -
1 stop10h 25m
Tue 12/1512:50 pm -
1 stop11h 30m
Deal found 10/31$603
Mon 11/306:30 pm -
1 stop10h 25m
Tue 12/1512:50 pm -
1 stop11h 30m
Deal found 11/1$605
Mon 11/96:30 pm -
1 stop10h 25m
Thu 11/1912:50 pm -
1 stop11h 30m
Deal found 11/2$629
Sun 11/296:30 pm -
3 stops33h 20m
Tue 12/86:15 am -
3 stops18h 05m
Deal found 10/31$636
Wed 12/26:30 pm -
1 stop10h 25m
Tue 2/2312:50 pm -
1 stop11h 30m
Deal found 11/4$645
Tue 12/16:30 pm -
3 stops18h 20m
Tue 12/88:30 pm -
3 stops27h 50m
Deal found 11/1$647
Wed 12/26:30 pm -
1 stop10h 25m
Sun 12/612:50 pm -
1 stop11h 30m
Deal found 11/1$654

Find flight deals from Chicago to Belgium

Round-trip from

$602
(Gotogate)

One-way from

$353
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$670

Good round-trip deal

$1,288 or less

Good one-way deal

$795 or less
From Chicago (CHI) to Belgium
One-way flight from Chicago (CHI) to Belgium
Highest demand for flights based on searches. 31% potential increase in price ($409 potential increase over avg. RT price).
Cheapest flight prices on average. 8% potential price decrease ($70 potential savings vs. average RT price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from Chicago (CHI) to Belgium.
Price to beat on a one-way flight from Chicago (CHI) to Belgium.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Chicago to Belgium that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBrussels

ORD Chicago O'Hare Intl - BRU Brussels Bruxelles-National

ORDBRU

Chicago O'Hare Intl

Wed 12/2

7:00 pm-6:40 pm

3 stops40h 40m

Brussels Bruxelles-National

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$407

ChicagoBrussels

ORD Chicago O'Hare Intl - BRU Brussels Bruxelles-National

ORDBRU

Chicago O'Hare Intl

Tue 12/1

6:30 pm-8:35 am

3 stops31h 05m

Brussels Bruxelles-National

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$416

ChicagoBrussels

ORD Chicago O'Hare Intl - BRU Brussels Bruxelles-National

ORDBRU

Chicago O'Hare Intl

Sat 12/5

6:30 pm-2:55 pm

2 stops37h 25m

Brussels Bruxelles-National

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$463

ChicagoBrussels

ORD Chicago O'Hare Intl - BRU Brussels Bruxelles-National

ORDBRU

Chicago O'Hare Intl

Fri 4/30

6:10 pm-6:20 pm

2 stops41h 10m

Brussels Bruxelles-National

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$524

ChicagoBrussels

ORD Chicago O'Hare Intl - BRU Brussels Bruxelles-National

ORDBRU

Chicago O'Hare Intl

Tue 1/26

8:15 pm-10:25 pm

2 stops43h 10m

Brussels Bruxelles-National

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$557

ChicagoBrussels

ORD Chicago O'Hare Intl - BRU Brussels Bruxelles-National

ORDBRU

Chicago O'Hare Intl

Sun 12/20

3:55 pm-9:40 am

1 stop10h 45m

Brussels Bruxelles-National

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$666
Quickest round-trip

ChicagoBrussels

ORD Chicago O'Hare Intl - BRU Brussels Bruxelles-National

ORDBRU

Chicago O'Hare Intl

Tue 1/26

5:50 pm-8:55 am

Nonstop8h 05m

Brussels Bruxelles-National

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$729

ChicagoBrussels

ORD Chicago O'Hare Intl - BRU Brussels Bruxelles-National

ORDBRU

Chicago O'Hare Intl

Sun 12/6

7:10 pm-2:30 pm

1 stop12h 20m

Brussels Bruxelles-National

Sat 12/12

11:35 am-4:45 pm

2 stops36h 10m

$734

ChicagoBrussels

ORD Chicago O'Hare Intl - BRU Brussels Bruxelles-National

ORDBRU

Chicago O'Hare Intl

Thu 12/17

5:01 am-4:45 pm

3 stops28h 44m

Brussels Bruxelles-National

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$744

ChicagoBrussels

ORD Chicago O'Hare Intl - BRU Brussels Bruxelles-National

ORDBRU

Chicago O'Hare Intl

Thu 12/17

3:55 pm-9:40 am

1 stop10h 45m

Brussels Bruxelles-National

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$761

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Chicago to Belgium

Have a flexible travel schedule? Discover the best time to fly to Belgium from Chicago with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Chicago to Belgium

What is the cheapest month to book a flight from Chicago to Belgium?

Currently, February is the cheapest month in which you can book a flight from Chicago to Belgium (average of $654). Flying from Chicago to Belgium in June is currently the most expensive (average of $1,516). 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 BE?

When flying from Chicago to Belgium, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Chicago to Belgium

The most flights from CHI to BE0 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 far ahead should I book a flight from Chicago to Belgium?

Booking 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Belgium. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Belgium

See what other customers who have flown with Scandinavian Airlines,Aer Lingus, andUnited Airlines from Chicago to Belgium have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.7

Comfort

7.4

Crew

8.1

Entertainment

6.8

Overall

7.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Boarding

7.7

Comfort

7.4

Crew

8.1

Entertainment

6.8

Overall

7.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Boarding

7.7

Comfort

7.4

Crew

8.1

Entertainment

6.8

Overall

7.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Boarding

7.7

Comfort

7.4

Crew

8.1

Entertainment

6.8

Overall

7.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Boarding

7.7

Comfort

7.4

Crew

8.1

Entertainment

6.8

Overall

7.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Related info for your journey

  • How long is the flight from Chicago to Belgium?

    There are many flights that can get you from Chicago to Belgium in 12h 20m. Fly via Scandinavian Airlines, Turkish Airlines, or United Airlines to get the fastest option. There are 4145 mi between Chicago and Belgium. This flight may include one or multiple stops.

  • What are the most popular routes from Chicago to Belgium?

  • What are the most reliable airlines from Chicago to Belgium?

    Consider Air Canada (77%), Austrian Airlines (77%) or Brussels Airlines (77%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Belgium.

  • What are the cheapest flights from Chicago to Belgium?

    Looking at all options, your cheapest flight can be booked for $332. While the most popular route (Chicago O'Hare Intl - Brussels Bruxelles-National) can be booked for $690 on average, our data indicates $1,274 when flying from Chicago to Belgium.

  • Can I find deals for flights from Chicago to Belgium that include hotel bookings?

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

  • How can I find direct flights from Chicago to Belgium?

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

  • Can I find deals for business class flights from Chicago to Belgium?

    Yes. Cheapflights offers flight deals from Chicago to Belgium 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 Belgium?

    Currently, February is the cheapest month in which you can book a flight from Chicago to Belgium (average of $654). Flying from Chicago to Belgium in June is currently the most expensive (average of $1,516). 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

Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from Chicago to Belgium

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$433Average$665FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$444Average$463FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$477Average$716FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$534Average$751FlexibilityNo cancel feeOn-timeN/A
Brussels AirlinesCheapest$752Average$1,656FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$810Average$1,362FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$969Average$1,369FlexibilityNo cancel feeOn-time76%

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