Cheap flights from Chicago O'Hare Intl Airport to Brussels from $215
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 7/29. 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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Air Canada flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport
Our best Air Canada deals on Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport flight tickets
United Airlines flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport
Our best United Airlines deals on Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport flight tickets
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How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport 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 O'Hare Intl Airport is in September. Flight prices, which tend to average around $562, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Brussels Bruxelles-National Airport from Chicago O'Hare Intl Airport during October instead. Flights to Brussels Bruxelles-National Airport in October, while not as cheap as those in September, still average around $581.
What is the cheapest day to depart on your flight to Brussels Bruxelles-National Airport?
The cheapest day to depart from Chicago O'Hare Intl Airport 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 $1,124. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport for around $1,289.
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 O'Hare Intl Airport 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 $1,176 on average. Flights to Brussels Bruxelles-National Airport from Chicago O'Hare Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Chicago O'Hare Intl to Brussels Bruxelles-National flight route?
Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago O'Hare Intl - 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 O'Hare Intl Airport when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around $804 when searching 24 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 O'Hare Intl Airport for as low as $610 on momondo.
What cabin class options are available on Chicago O'Hare Intl to Brussels Bruxelles-National flights?
There are 3 cabin classes available to choose from on Chicago O'Hare Intl 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.
What is the cheapest airline that flies from Chicago O'Hare Intl to Brussels Bruxelles-National?
Icelandair, Scandinavian Airlines, and Air Canada are the most popular carriers operating from Chicago O'Hare Intl to Brussels Bruxelles-National
What airlines fly to Brussels Bruxelles-National Airport?
Scandinavian Airlines, United Airlines and Aer Lingus are the top three most popular airlines that fly to Brussels Bruxelles-National Airport from Chicago O'Hare Intl Airport according to our data. Scandinavian Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Brussels Bruxelles-National Airport. Keep in mind that there are 9 different airlines that fly to Brussels Bruxelles-National Airport 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 Bruxelles-National Airport on average per day?
5 flights are operational daily from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport as of June 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 Bruxelles-National Airport on average per week?
As of June 2025, there are 35 flights per week flying from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.
When to book flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport
Cheap Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport (ORD to BRU) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport
How far is Chicago O'Hare Intl to Brussels Bruxelles-National by plane?
Chicago O'Hare Intl and Brussels Bruxelles-National are 4144.8 mi apart from one another. Flights usually cover this in 8h 00m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport?
Prices for flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport are updated daily.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport?
As of June 2025, there are 9 operators available to choose from for flights from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport?
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 Bruxelles-National Airport.
What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?
The required travel and health documents for your Brussels Bruxelles-National Airport 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 Bruxelles-National Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport?
Based on momondo bookings for flights between Chicago O'Hare Intl Airport and Brussels Bruxelles-National Airport, the leading plane model is Boeing 787 Dreamliner, making up 40.35% of the total bookings. Other popular models include Boeing 787-10 Dreamliner with 32.92%, Boeing 787-8 Dreamliner with 10.64%, and Boeing 787-9 Dreamliner with 3.47%.
What is the most popular airline from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport?
Based on momondo bookings for flights between Chicago O'Hare Intl Airport and Brussels Bruxelles-National Airport, the leading airline is Scandinavian Airlines, making up 31% of the total bookings. Other popular airlines include United Airlines with 26%, Aer Lingus with 14%, and Icelandair with 10%.
Best airlines flying from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport
Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $313 | Free Cancellation | Rating 7.3 1,387 reviews | |||
| PriceFrom $428 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom $492 | Free Cancellation | Rating 7.3 3,848 reviews | |||
| PriceFrom $513 | Free Cancellation | Rating 7.1 1,885 reviews | |||
| PriceFrom $551 | Free Cancellation | Rating 6.6 7,008 reviews | |||
| PriceFrom $552 | Free Cancellation | Rating 7.1 1,117 reviews | |||
| PriceFrom $639 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $728 | Free Cancellation | Rating 6.7 7,136 reviews | |||
| PriceFrom $813 | Free Cancellation | Rating 7.4 355 reviews |
United Airlines Flights From Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport
United Airlines flight deals from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport start from $639 round-trip. Over the 7 United Airlines flights for this route in a normal week, average airfare is usually $1,033 round-trip - but some users have found much cheaper deals with momondo.
Brussels Airlines Flights From Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport
Another popular option for Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport flights is Brussels Airlines (7.4/10, 355 ratings). Brussels Airlines flies from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport around 7 times per week, with deals starting from $813 round-trip and rising to an average price of around $1,318.
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Why should I use momondo to find a flight deal from Chicago to Brussels?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Brussels. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Chicago to Brussels with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Chicago to Brussels flights to just show those with flexible booking policies.
How can momondo help me find flights from Chicago to Brussels?
momondo provides multiple filters to help you find the best flight to Brussels 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 Brussels right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Brussels, momondo offers a useful price alert feature which will track prices for flights to Brussels from Chicago and alert you when they change.