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Cheap flights from Chicago to Brussels from $274

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 Brussels departing on 7/19. 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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0 bags

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Find the cheapest flights from Chicago to Brussels

Cheap round-trip flights

Scandinavian Airlines Logo
7:20 pm - 8:55 pmORD-BRU
18h 35m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pmBRU-ORD
36h 15m2 stops
$437Scandinavian Airlines
Find Deal
Thu, Nov 13 - Wed, Nov 19
Scandinavian Airlines Logo
7:15 pm - 10:15 amORD-BRU
32h 00m2 stops
Scandinavian Airlines Logo
9:15 pm - 4:10 pmBRU-ORD
25h 55m2 stops
$438Scandinavian Airlines
Find Deal
Mon, Sep 8 - Mon, Sep 15
Virgin Atlantic Logo
10:31 am - 8:40 amMDW-BRU
15h 09m2 stops
Virgin Atlantic Logo
10:45 am - 9:44 pmBRU-MDW
17h 59m2 stops
$661Virgin Atlantic
Find Deal
Wed, Aug 13 - Thu, Aug 21
KLM Logo
10:31 am - 8:40 amMDW-BRU
15h 09m1 stop
KLM Logo
10:45 am - 9:26 pmBRU-MDW
17h 41m1 stop
$686KLM
Find Deal
Tue, Sep 2 - Wed, Sep 10
Virgin Atlantic Logo
10:31 am - 8:40 amMDW-BRU
15h 09m1 stop
Virgin Atlantic Logo
10:45 am - 9:26 pmBRU-MDW
17h 41m2 stops
$691Virgin Atlantic
Find Deal
Tue, Aug 26 - Tue, Sep 2
Delta Logo
4:25 pm - 8:40 amMDW-BRU
33h 15m1 stop
Delta Logo
10:45 am - 9:26 pmBRU-MDW
17h 41m1 stop
$692Delta
Find Deal
Mon, Aug 25 - Wed, Sep 10
Delta Logo
9:25 am - 7:30 amMDW-BRU
15h 05m2 stops
Delta Logo
10:45 am - 9:44 pmBRU-MDW
17h 59m2 stops
$706Delta
Find Deal
Sun, Aug 10 - Tue, Aug 19
KLM Logo
10:31 am - 8:40 amMDW-BRU
15h 09m1 stop
KLM Logo
10:45 am - 9:26 pmBRU-MDW
17h 41m1 stop
$776KLM
Find Deal
Thu, Aug 28 - Wed, Sep 10
Logo
2:55 pm - 12:50 pmMDW-BRU
14h 55m2 stops
Logo
1:50 pm - 10:55 pmBRU-MDW
16h 05m2 stops
$1,156
Find Deal
Wed, Aug 13 - Sun, Aug 24
Logo
3:25 pm - 12:50 pmMDW-BRU
14h 25m2 stops
Logo
1:50 pm - 10:00 pmBRU-MDW
15h 10m2 stops
$1,359
Find Deal
Tue, Sep 23 - Sun, Oct 5

LOT flights from Chicago to Brussels Bruxelles-National Airport

Our best LOT deals on Chicago to Brussels Bruxelles-National Airport flight tickets
LOT
Jul 24
ORD2:20 pmChicago O'Hare Intl
21h 20m
1 stop
BRU6:40 pmBrussels Bruxelles-National
Jul 29
BRU7:50 amBrussels Bruxelles-National
14h 20m
1 stop
ORD3:10 pmChicago O'Hare Intl
$1,128
Find similar
LOT
Jul 26
ORD9:40 pmChicago O'Hare Intl
28h 45m
1 stop
BRU9:25 amBrussels Bruxelles-National
Jul 29
BRU7:50 amBrussels Bruxelles-National
18h 50m
1 stop
ORD7:40 pmChicago O'Hare Intl
$1,139
Find similar
LOT
Jul 15
ORD9:40 pmChicago O'Hare Intl
35h 20m
1 stop
BRU4:00 pmBrussels Bruxelles-National
Jul 22
BRU7:35 pmBrussels Bruxelles-National
31h 05m
1 stop
ORD7:40 pmChicago O'Hare Intl
$1,150
Find similar

Scandinavian Airlines flights from Chicago to Brussels Bruxelles-National Airport

Our best Scandinavian Airlines deals on Chicago to Brussels Bruxelles-National Airport flight tickets
Scandinavian Airlines
Nov 13
ORD7:20 pmChicago O'Hare Intl
18h 35m
2 stops
BRU8:55 pmBrussels Bruxelles-National
Nov 19
BRU11:30 amBrussels Bruxelles-National
36h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
$437
Find similar
Scandinavian Airlines
Sep 8
ORD7:15 pmChicago O'Hare Intl
32h 00m
2 stops
BRU10:15 amBrussels Bruxelles-National
Sep 15
BRU9:15 pmBrussels Bruxelles-National
25h 55m
2 stops
ORD4:10 pmChicago O'Hare Intl
$438
Find similar
Scandinavian Airlines
Nov 13
ORD7:20 pmChicago O'Hare Intl
18h 35m
2 stops
BRU8:55 pmBrussels Bruxelles-National
Nov 19
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
$440
Find similar

See travel insights to Brussels from

How to get the cheapest flight ticket from Chicago 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 typical price of a round-trip flight between Chicago and Brussels Bruxelles-National Airport?

What is the cheapest month to fly to Brussels Bruxelles-National Airport?

The cheapest month to fly to Brussels Bruxelles-National Airport from Chicago is in October. Flight prices, which tend to average around $565, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Brussels Bruxelles-National Airport from Chicago during April instead. Flights to Brussels Bruxelles-National Airport in April, while not as cheap as those in October, still average around $576.

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

The cheapest day to depart from Chicago to Brussels Bruxelles-National Airport is on a Monday. Travelers who choose to depart for Brussels Bruxelles-National Airport on a Monday will often find tickets for as low as $1,090. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to Brussels Bruxelles-National Airport for around $1,272.

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 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 $1,177 on average. Flights to Brussels Bruxelles-National Airport from Chicago in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Chicago to Brussels Bruxelles-National flight route?

Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around $793 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 for as low as $597 on momondo.

What cabin class options are available on Chicago to Brussels Bruxelles-National flights?

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

As of July 2025, prices for Chicago to Brussels Bruxelles-National Airport flights are approximately 46% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Brussels Bruxelles-National Airport

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

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

Best Price Found

$274

Fastest flight time

8h 00m

Direct flights

Every day
The best one-way flight to Brussels Bruxelles-National Airport from Chicago in the past 72 hours is $274. The best round-trip flight deal from Chicago to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is $437.
The fastest flight from Chicago to Brussels Bruxelles-National Airport takes 8h 00m
Direct flights go from Chicago to Brussels Bruxelles-National Airport every day.
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  • How far is Chicago to Brussels Bruxelles-National by plane?

    There are 4139.4 mi between Chicago and Brussels Bruxelles-National. Flights usually cover this in 12h 00m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Chicago to Brussels Bruxelles-National Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Brussels Bruxelles-National Airport.

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

    The travel and health documents you'll need for your trip to Brussels Bruxelles-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Brussels Bruxelles-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from Chicago to Brussels Bruxelles-National Airport

Compare and see reviews for airlines that fly from Chicago to Brussels Bruxelles-National Airport with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $312Free CancellationRating
7.3
1,423 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $405Free CancellationRating
7.0
515 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
3,901 reviews
Search Turkish Airlines flights
KLMPriceFrom $506Free CancellationRating
7.8
1,372 reviews
Search KLM flights
TAP AIR PORTUGALPriceFrom $513Free CancellationRating
7.1
1,917 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom $551Free CancellationRating
6.6
7,134 reviews
Search British Airways flights
Aer LingusPriceFrom $552Free CancellationRating
7.1
1,160 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
8,858 reviews
Search United Airlines flights
LufthansaPriceFrom $725Free CancellationRating
6.8
7,208 reviews
Search Lufthansa flights
Brussels AirlinesPriceFrom $813Free CancellationRating
7.3
350 reviews
Search Brussels Airlines flights

  • United Airlines Flights From Chicago to Brussels Bruxelles-National Airport

    United Airlines flies from Chicago to Brussels Bruxelles-National Airport around 7 times per week, with 8,858 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Chicago to Brussels Bruxelles-National Airport in the last 72 hours was $590 (round-trip), much lower than the average airfare cost of $1,027 for United Airlines flights on this route.

  • Brussels Airlines Flights From Chicago to Brussels Bruxelles-National Airport

    Brussels Airlines is also a popular choice for this route. Brussels Airlines flight deals for Chicago to Brussels Bruxelles-National Airport start from as low as $813 round-trip, depending on your selected dates, with average Brussels Airlines deals seen on momondo around $1,325. Brussels Airlines operates 7 flights to Brussels Bruxelles-National Airport from Chicago in an average week. Users have rated it 7.3/10 across 350 reviews.

Traveling to a place near Brussels?

Book flights to Brussels if you plan to visit one of these locations
Bruges
Ghent
Leuven
Charleroi
Namur
Spa
Genk
Aalst
Hasselt
Zaventem
Waterloo
Dinant
Mons
Mechelen
Knokke-Heist
Tournai
Durbuy
Oostkamp

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Brussels. momondo saves you time and could save you money on your trip.

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

Flights from Chicago to Brussels with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Chicago to Brussels flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Brussels 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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