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Cheap flights from Chicago O'Hare Intl Airport to Belgium from $223

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 Belgium departing on 11/18. 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 Belgium

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
10:40 am - 9:40 amORD-BRU
16h 00m2 stops
Scandinavian Airlines Logo
7:45 pm - 4:45 pmBRU-ORD
28h 00m2 stops
$420Scandinavian Airlines
Find Deal
Tue, Feb 24 - Sun, Mar 1
Scandinavian Airlines Logo
7:20 pm - 2:30 pmORD-BRU
12h 10m1 stop
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$438Scandinavian Airlines
Find Deal
Wed, Jan 14 - Mon, Jan 19
Scandinavian Airlines Logo
7:20 pm - 10:50 amORD-BRU
32h 30m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$442Scandinavian Airlines
Find Deal
Wed, Jan 14 - Mon, Jan 19
Scandinavian Airlines Logo
10:40 am - 2:30 pmORD-BRU
20h 50m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$443Scandinavian Airlines
Find Deal
Tue, Feb 24 - Sun, Mar 1
Scandinavian Airlines Logo
7:00 am - 2:30 pmORD-BRU
24h 30m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$447Scandinavian Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14
Scandinavian Airlines Logo
10:10 am - 11:00 pmORD-BRU
29h 50m2 stops
Scandinavian Airlines Logo
8:30 pm - 4:10 pmBRU-ORD
26h 40m1 stop
$448Scandinavian Airlines
Find Deal
Tue, Apr 14 - Tue, Apr 28
Aer Lingus Logo
7:40 pm - 6:15 pmORD-BRU
15h 35m1 stop
Aer Lingus Logo
10:15 am - 5:55 pmBRU-ORD
14h 40m1 stop
$463Aer Lingus
Find Deal
Mon, Dec 8 - Tue, Dec 16
Aer Lingus Logo
7:40 pm - 6:15 pmORD-BRU
15h 35m1 stop
Aer Lingus Logo
10:15 am - 5:55 pmBRU-ORD
14h 40m1 stop
$470Aer Lingus
Find Deal
Wed, Nov 19 - Wed, Nov 26
Multiple Airlines Logo
7:10 pm - 10:50 pmORD-CRL
20h 40m2 stops
Multiple Airlines Logo
10:35 am - 3:00 pmCRL-ORD
35h 25m2 stops
$504Multiple Airlines
Find Deal
Wed, Feb 11 - Tue, Feb 17
Aer Lingus Logo
3:50 pm - 9:35 amORD-BRU
10h 45m1 stop
Aer Lingus Logo
10:15 am - 5:55 pmBRU-ORD
14h 40m1 stop
$515Aer Lingus
Find Deal
Sun, Nov 9 - Tue, Nov 11

Aer Lingus flights from Chicago O'Hare Intl Airport to Belgium

Our best Aer Lingus deals on Chicago O'Hare Intl Airport to Belgium flight tickets
Aer Lingus
Dec 8
ORD7:40 pmChicago O'Hare Intl
15h 35m
1 stop
BRU6:15 pmBrussels Bruxelles-National
Dec 16
BRU10:15 amBrussels Bruxelles-National
14h 40m
1 stop
ORD5:55 pmChicago O'Hare Intl
$463
Find similar
Aer Lingus
Nov 19
ORD7:40 pmChicago O'Hare Intl
15h 35m
1 stop
BRU6:15 pmBrussels Bruxelles-National
Nov 26
BRU10:15 amBrussels Bruxelles-National
14h 40m
1 stop
ORD5:55 pmChicago O'Hare Intl
$470
Find similar
Aer Lingus
Nov 9
ORD3:50 pmChicago O'Hare Intl
10h 45m
1 stop
BRU9:35 amBrussels Bruxelles-National
Nov 11
BRU10:15 amBrussels Bruxelles-National
14h 40m
1 stop
ORD5:55 pmChicago O'Hare Intl
$515
Find similar

Scandinavian Airlines flights from Chicago O'Hare Intl Airport to Belgium

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Belgium flight tickets
Scandinavian Airlines
Feb 24
ORD10:40 amChicago O'Hare Intl
16h 00m
2 stops
BRU9:40 amBrussels Bruxelles-National
Mar 1
BRU7:45 pmBrussels Bruxelles-National
28h 00m
2 stops
ORD4:45 pmChicago O'Hare Intl
$420
Find similar
Scandinavian Airlines
Jan 14
ORD7:20 pmChicago O'Hare Intl
12h 10m
1 stop
BRU2:30 pmBrussels Bruxelles-National
Jan 19
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
$438
Find similar
Scandinavian Airlines
Jan 14
ORD7:20 pmChicago O'Hare Intl
32h 30m
2 stops
BRU10:50 amBrussels Bruxelles-National
Jan 19
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
$442
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Belgium 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 October 16, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Belgium that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 2/24

10:40 am-9:40 am

2 stops16h 00m

Brussels Bruxelles-National

Sun 3/1

7:45 pm-4:45 pm

2 stops28h 00m

$420

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/14

7:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

Mon 1/19

10:20 am-4:45 pm

1 stop13h 25m

$438

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/14

7:20 pm-10:50 am

2 stops32h 30m

Brussels Bruxelles-National

Mon 1/19

10:20 am-4:45 pm

1 stop13h 25m

$442

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 2/24

10:40 am-2:30 pm

2 stops20h 50m

Brussels Bruxelles-National

Sun 3/1

10:20 am-4:45 pm

1 stop13h 25m

$443

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 12/10

7:00 am-2:30 pm

2 stops24h 30m

Brussels Bruxelles-National

Sun 12/14

10:20 am-4:45 pm

1 stop13h 25m

$447

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 4/14

10:10 am-11:00 pm

2 stops29h 50m

Brussels Bruxelles-National

Tue 4/28

8:30 pm-4:10 pm

1 stop26h 40m

$448

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 12/8

7:40 pm-6:15 pm

1 stop15h 35m

Brussels Bruxelles-National

Tue 12/16

10:15 am-5:55 pm

1 stop14h 40m

$463

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 11/19

7:40 pm-6:15 pm

1 stop15h 35m

Brussels Bruxelles-National

Wed 11/26

10:15 am-5:55 pm

1 stop14h 40m

$470

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Wed 2/11

7:10 pm-10:50 pm

2 stops20h 40m

Charleroi Brussels

Tue 2/17

10:35 am-3:00 pm

2 stops35h 25m

$504

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 11/9

3:50 pm-9:35 am

1 stop10h 45m

Brussels Bruxelles-National

Tue 11/11

10:15 am-5:55 pm

1 stop14h 40m

$515

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 Belgium from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Belgium

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 Belgium?

In general, September is the cheapest month to fly from Chicago O'Hare Intl Airport to Belgium. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $515. If you are unable to visit Belgium during the month of September, then departing from Chicago O'Hare Intl Airport during the month February is also very affordable. Most momondo users find prices during this month for around $634.

What is the cheapest day to depart on your flight to Belgium?

Our data shows that Wednesday is the least expensive day to fly to Belgium. Tickets to fly out on this day can be as low as $1,101. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,411. These prices are subject to change though, so be sure to set up a Price Alert for flights to Belgium.

What is the cheapest time of day to depart on your flight to Belgium?

Our most recent data shows that the best time of day to fly to Belgium is in the evening. Flights from Chicago O'Hare Intl Airport to Belgium during this time can be as low as $622. Flights to Belgium are more costly in the afternoon, with an average ticket price of $1,198. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Chicago O'Hare Intl to Belgium flight route?

Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago O'Hare Intl - Belgium flight prices

How far in advance should I book a flight to Belgium?

You are more likely to see cheaper flights to Belgium from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around $794 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from Chicago O'Hare Intl Airport for as low as $614 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Belgium flights?

There are 3 cabin classes available to choose from on Chicago O'Hare Intl to Belgium flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Chicago O'Hare Intl Airport to Belgium flight deals and tips

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

Best Price Found

$751

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Belgium

1 airport
The best one-way flight to Belgium from Chicago O'Hare Intl Airport in the past 72 hours is $751. The best round-trip flight deal from Chicago O'Hare Intl Airport to Belgium found on momondo in the last 72 hours is $1,002.
The fastest flight from Chicago O'Hare Intl Airport to Belgium takes 8h 00m
Direct flights go from Chicago O'Hare Intl Airport to Belgium every day.
There is 1 airport near Belgium: Brussels Bruxelles-National (BRU)
Search flight deals

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Belgium?

    Prices for flights from Chicago O'Hare Intl Airport to Belgium were last updated today.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Belgium?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Belgium?

    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 Belgium.

  • What documentation or ID do you need to fly to Belgium?

    The necessary travel and health documents for your Belgium trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Belgium?

Best airlines flying from Chicago O'Hare Intl Airport to Belgium

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Belgium with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $310Free CancellationRating
7.4
1,533 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $428Free CancellationRating
7.0
556 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
4,010 reviews
Search Turkish Airlines flights
KLMPriceFrom $506Free CancellationRating
7.7
1,404 reviews
Search KLM flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,457 reviews
Search British Airways flights
Aer LingusPriceFrom $581Free CancellationRating
7.2
1,341 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
TAP AIR PORTUGALPriceFrom $744Free CancellationRating
7.1
2,016 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $754Free CancellationRating
6.8
7,497 reviews
Search Lufthansa flights

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Belgium from Chicago which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Belgium 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 Belgium right now. Can momondo alert me if prices change?

Price alerts on flights to Belgium 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.

An easier way to manage your Belgium trip

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