Cheap flights from Chicago O'Hare Intl Airport to Brussels from $316
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 Brussels departing on 7/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
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Cheap round-trip flights
These are some of the best round-trip flight deals from Chicago O'Hare Intl Airport to Brussels that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Chicago O'Hare Intl Airport to Brussels.
Cheap last minute flights
Planning a quick getaway from Chicago O'Hare Intl Airport to Brussels? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to Brussels, so you can enjoy a seamless trip without layovers.
Turkish Airlines flights from Chicago O'Hare Intl Airport to Brussels
Our best Turkish Airlines deals on Chicago O'Hare Intl Airport to Brussels flight tickets
Turkish Airlines![Turkish Airlines]()
Sep 17![Turkish Airlines]()
Sep 23
ORD11:45 pmChicago O'Hare Intl
27h 25m
1 stop
BRU10:10 amBrussels Bruxelles-National
BRU6:50 pmBrussels Bruxelles-National
21h 50m
1 stop
ORD9:40 amChicago O'Hare Intl
Turkish Airlines![Turkish Airlines]()
Oct 1![Turkish Airlines]()
Oct 12
ORD7:50 pmChicago O'Hare Intl
18h 30m
1 stop
BRU9:20 pmBrussels Bruxelles-National
BRU6:50 pmBrussels Bruxelles-National
34h 10m
1 stop
ORD10:00 pmChicago O'Hare Intl
TAP AIR PORTUGAL flights from Chicago O'Hare Intl Airport to Brussels
Our best TAP AIR PORTUGAL deals on Chicago O'Hare Intl Airport to Brussels flight tickets
TAP AIR PORTUGAL![TAP AIR PORTUGAL]()
Oct 19![TAP AIR PORTUGAL]()
Oct 23
ORD6:00 pmChicago O'Hare Intl
14h 05m
1 stop
BRU3:05 pmBrussels Bruxelles-National
BRU8:55 pmBrussels Bruxelles-National
26h 15m
1 stop
ORD4:10 pmChicago O'Hare Intl
TAP AIR PORTUGAL![TAP AIR PORTUGAL]()
Sep 15![TAP AIR PORTUGAL]()
Sep 26
ORD6:10 pmChicago O'Hare Intl
13h 55m
1 stop
BRU3:05 pmBrussels Bruxelles-National
BRU5:55 amBrussels Bruxelles-National
17h 35m
1 stop
ORD4:30 pmChicago O'Hare Intl
See travel insights to Brussels from
How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Brussels
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
Prices
Airlines
Other information
What is the cheapest month to fly to Brussels?
In general, September is the cheapest month to fly from Chicago O'Hare Intl Airport to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $628. If you are unable to visit Brussels during the month of September, then departing from Chicago O'Hare Intl Airport during the month October is also very affordable. Most momondo users find prices during this month for around $659.
What is the cheapest day to depart on your flight to Brussels?
On average, the least expensive day to fly to Brussels from Chicago O'Hare Intl Airport is on a Monday. momondo users have found tickets for Monday departures for as low as $1,065. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Chicago O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,369.
What is the cheapest time of day to depart on your flight to Brussels?
According to our data, the cheapest time of day to fly to Brussels is in the evening. momondo users have found flights departing from Chicago O'Hare Intl Airport to Brussels in the evening for as low as $579. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,197.
What is the cheapest Chicago O'Hare Intl to Brussels flight route?
Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago O'Hare Intl - Brussels flight prices
How far in advance should I book a flight to Brussels?
You are more likely to see cheaper flights to Brussels from Chicago O'Hare Intl Airport when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around $841 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from Chicago O'Hare Intl Airport for as low as $716 on momondo.
What cabin class options are available on Chicago O'Hare Intl to Brussels flights?
There are 3 cabin classes available to choose from on Chicago O'Hare Intl to Brussels flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Chicago O'Hare Intl to Brussels?
Scandinavian Airlines, Icelandair, and TAP AIR PORTUGAL are the most popular carriers operating from Chicago O'Hare Intl to Brussels
What airlines fly to Brussels?
United Airlines, Scandinavian Airlines and Aer Lingus are the top three most popular airlines that fly to Brussels from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Brussels. Keep in mind that there are 8 different airlines that fly to Brussels on a routine basis, so you have a few additional options to choose from.
How many flights depart from Chicago O'Hare Intl Airport to Brussels on average per day?
5 flights are operational daily from Chicago O'Hare Intl Airport to Brussels as of April 2025. The most popular departure time for this route is 5:00PM, with 100% of flights per day taking off in the afternoon.
How many flights depart from Chicago O'Hare Intl Airport to Brussels on average per week?
As of April 2025, there are 35 flights per week flying from Chicago O'Hare Intl Airport to Brussels. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.
Cheap Chicago O'Hare Intl Airport to Brussels flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Brussels
How far is Chicago O'Hare Intl to Brussels by plane?
The straight-line distance from Chicago O'Hare Intl to Brussels is 4141.6 mi. By plane, this route typically takes 8h 05m.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Brussels?
Prices for flights from Chicago O'Hare Intl Airport to Brussels are updated daily.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Brussels?
As of April 2025, there are 8 operators available to choose from for flights from Chicago O'Hare Intl Airport to Brussels.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Brussels?
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 Brussels.
What documentation or ID do you need to fly to Brussels?
The required travel and health documents for your Brussels trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Brussels. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Chicago O'Hare Intl Airport to Brussels
Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Brussels with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $397 | Free Cancellation | Rating 7.3 1,349 reviews | |||
| PriceFrom $405 | Free Cancellation | Rating 7.0 487 reviews | |||
| PriceFrom $492 | Free Cancellation | Rating 7.3 3,788 reviews | |||
| PriceFrom $512 | Free Cancellation | Rating 7.0 1,076 reviews | |||
| PriceFrom $518 | Free Cancellation | Rating 7.1 1,850 reviews | |||
| PriceFrom $724 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $754 | Free Cancellation | Rating 6.7 7,044 reviews | |||
| PriceFrom $813 | Free Cancellation | Rating 7.3 346 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Brussels?
It is quick and easy to find Chicago to Brussels flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Brussels that suits you.
Can I find flights from Chicago to Brussels with flexible booking policies on momondo?
Yes. All flights to Brussels from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Chicago to Brussels?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Brussels from Chicago.
I’m not ready to book a flight from Chicago to Brussels right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Chicago to Brussels flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.