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Cheap flights from Chicago to Belgium from $284

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 Belgium departing on 3/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:10 am - 2:30 pmORD-BRU
24h 20m2 stops
Scandinavian Airlines Logo
3:10 pm - 4:45 pmBRU-ORD
32h 35m1 stop
$423Scandinavian Airlines
Find Deal
Sun, Dec 7 - Tue, Dec 23
Scandinavian Airlines Logo
7:10 am - 9:40 amORD-BRU
19h 30m2 stops
Scandinavian Airlines Logo
5:10 pm - 4:45 pmBRU-ORD
30h 35m2 stops
$440Scandinavian Airlines
Find Deal
Sun, Dec 7 - Tue, Dec 23
Scandinavian Airlines Logo
7:10 am - 9:40 amORD-BRU
19h 30m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$447Scandinavian Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
TAP AIR PORTUGAL Logo
7:10 pm - 11:50 pmORD-BRU
21h 40m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 3:25 pmBRU-ORD
16h 25m1 stop
$456TAP AIR PORTUGAL
Find Deal
Wed, Jan 28 - Fri, Feb 6
TAP AIR PORTUGAL Logo
8:15 pm - 11:50 pmORD-BRU
20h 35m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 2:45 pmBRU-ORD
15h 45m1 stop
$457TAP AIR PORTUGAL
Find Deal
Fri, Nov 28 - Sun, Dec 7
Scandinavian Airlines Logo
7:20 pm - 10:50 amORD-BRU
32h 30m2 stops
Scandinavian Airlines Logo
3:10 pm - 4:45 pmBRU-ORD
32h 35m1 stop
$459Scandinavian Airlines
Find Deal
Wed, Jan 28 - Fri, Feb 6
Multiple Airlines Logo
8:00 am - 8:55 pmORD-CRL
29h 55m2 stops
Multiple Airlines Logo
3:30 pm - 1:10 pmCRL-ORD
28h 40m2 stops
$578Multiple Airlines
Find Deal
Wed, Jan 14 - Tue, Jan 20
Multiple Airlines Logo
7:15 am - 8:55 pmORD-CRL
30h 40m3 stops
Multiple Airlines Logo
3:30 pm - 1:10 pmCRL-ORD
28h 40m2 stops
$579Multiple Airlines
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Wed, Jan 14 - Tue, Jan 20
Delta Logo
1:28 pm - 7:35 amMDW-BRU
11h 07m2 stops
Delta Logo
8:05 am - 5:32 pmBRU-MDW
16h 27m2 stops
$785Delta
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Wed, Jan 28 - Fri, Feb 6
Delta Logo
1:28 pm - 7:35 amMDW-BRU
11h 07m2 stops
Delta Logo
10:45 am - 10:26 pmBRU-MDW
18h 41m2 stops
$935Delta
Find Deal
Wed, Jan 14 - Tue, Jan 20

TAP AIR PORTUGAL flights from Chicago to Belgium

Our best TAP AIR PORTUGAL deals on Chicago to Belgium flight tickets
TAP AIR PORTUGAL
Apr 26
ORD6:00 pmChicago O'Hare Intl
19h 05m
1 stop
BRU8:05 pmBrussels Bruxelles-National
May 9
BRU5:55 amBrussels Bruxelles-National
17h 20m
1 stop
ORD4:15 pmChicago O'Hare Intl
$455
Find similar
TAP AIR PORTUGAL
Jan 28
ORD7:10 pmChicago O'Hare Intl
21h 40m
1 stop
BRU11:50 pmBrussels Bruxelles-National
Feb 6
BRU6:00 amBrussels Bruxelles-National
16h 25m
1 stop
ORD3:25 pmChicago O'Hare Intl
$456
Find similar
TAP AIR PORTUGAL
Jan 14
ORD7:10 pmChicago O'Hare Intl
21h 40m
1 stop
BRU11:50 pmBrussels Bruxelles-National
Jan 20
BRU5:55 pmBrussels Bruxelles-National
28h 05m
1 stop
ORD3:00 pmChicago O'Hare Intl
$457
Find similar

Delta flights from Chicago to Belgium

Our best Delta deals on Chicago to Belgium flight tickets
Delta
Jan 28
MDW1:28 pmChicago Midway
11h 07m
2 stops
BRU7:35 amBrussels Bruxelles-National
Feb 6
BRU8:05 amBrussels Bruxelles-National
16h 27m
2 stops
MDW5:32 pmChicago Midway
$785
Find similar
Delta
Jan 14
MDW1:28 pmChicago Midway
11h 07m
2 stops
BRU7:35 amBrussels Bruxelles-National
Jan 20
BRU10:45 amBrussels Bruxelles-National
18h 41m
2 stops
MDW10:26 pmChicago Midway
$935
Find similar
Delta
Mar 4
MDW1:28 pmChicago Midway
17h 47m
2 stops
BRU2:15 pmBrussels Bruxelles-National
Mar 8
BRU2:45 pmBrussels Bruxelles-National
33h 23m
2 stops
MDW6:08 pmChicago Midway
$985
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 November 12, 2025.
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

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 12/7

7:10 am-2:30 pm

2 stops24h 20m

Brussels Bruxelles-National

Tue 12/23

3:10 pm-4:45 pm

1 stop32h 35m

$423

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 12/7

7:10 am-9:40 am

2 stops19h 30m

Brussels Bruxelles-National

Tue 12/23

5:10 pm-4:45 pm

2 stops30h 35m

$440

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 12/8

7:10 am-9:40 am

2 stops19h 30m

Brussels Bruxelles-National

Mon 12/15

10:20 am-4:45 pm

1 stop13h 25m

$447

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/28

7:10 pm-11:50 pm

1 stop21h 40m

Brussels Bruxelles-National

Fri 2/6

6:00 am-3:25 pm

1 stop16h 25m

$456

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 11/28

8:15 pm-11:50 pm

1 stop20h 35m

Brussels Bruxelles-National

Sun 12/7

6:00 am-2:45 pm

1 stop15h 45m

$457

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/28

7:20 pm-10:50 am

2 stops32h 30m

Brussels Bruxelles-National

Fri 2/6

3:10 pm-4:45 pm

1 stop32h 35m

$459

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Wed 1/14

8:00 am-8:55 pm

2 stops29h 55m

Charleroi Brussels

Tue 1/20

3:30 pm-1:10 pm

2 stops28h 40m

$578

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Wed 1/14

7:15 am-8:55 pm

3 stops30h 40m

Charleroi Brussels

Tue 1/20

3:30 pm-1:10 pm

2 stops28h 40m

$579

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Wed 1/28

1:28 pm-7:35 am

2 stops11h 07m

Brussels Bruxelles-National

Fri 2/6

8:05 am-5:32 pm

2 stops16h 27m

$785

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Wed 1/14

1:28 pm-7:35 am

2 stops11h 07m

Brussels Bruxelles-National

Tue 1/20

10:45 am-10:26 pm

2 stops18h 41m

$935

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 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, April is the cheapest month to fly from Chicago to Belgium. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $573. If you are unable to visit Belgium during the month of April, then departing from Chicago during the month October is also very affordable. Most momondo users find prices during this month for around $600.

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

Our data shows that Tuesday is the least expensive day to fly to Belgium. Tickets to fly out on this day can be as low as $1,106. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,400. 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 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 $1,207. 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 to Belgium flight route?

Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around $760 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from Chicago for as low as $486 on momondo.

What cabin class options are available on Chicago to Belgium flights?

There are 3 cabin classes available to choose from on Chicago 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 to Belgium flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Belgium

Best Price Found

$805

Fastest flight time

8h 00m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Belgium

1 airport
The best one-way flight to Belgium from Chicago in the past 72 hours is $805. The best round-trip flight deal from Chicago to Belgium found on momondo in the last 72 hours is $991.
The fastest flight from Chicago to Belgium takes 8h 00m
Direct flights go from Chicago to Belgium on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Austrian Airlines.
There is 1 airport near Belgium: Brussels Bruxelles-National (BRU)
Search flight deals

  • When did momondo last update prices for flights from Chicago to Belgium?

    Prices for flights from Chicago to Belgium were last updated today.

  • How many operators does momondo search for flights from Chicago to Belgium?

  • How old do you have to be to fly from Chicago to Belgium?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Belgium.

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

    The travel and health documents required for your trip to Belgium can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Belgium. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Chicago to Belgium?

Best airlines flying from Chicago to Belgium

Compare and see reviews for airlines that fly from Chicago to Belgium with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $310Free CancellationRating
7.4
1,575 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $428Free CancellationRating
7.1
578 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
4,044 reviews
Search Turkish Airlines flights
Aer LingusPriceFrom $536Free CancellationRating
7.2
1,370 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,516 reviews
Search British Airways flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
LufthansaPriceFrom $725Free CancellationRating
6.8
7,570 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $744Free CancellationRating
7.1
2,059 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belgium from Chicago.

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

All flight searches from Chicago to Belgium on momondo can be filtered to show those which offer flexible booking policies.

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.

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