Cheap flights from Chicago to Brussels from $261
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 10/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Chicago to Brussels
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Delta flights from Chicago to Brussels
Our best Delta deals on Chicago to Brussels flight tickets
Scandinavian Airlines flights from Chicago to Brussels
Our best Scandinavian Airlines deals on Chicago to Brussels flight tickets
See travel insights to Brussels from
How to get the cheapest flight ticket from Chicago 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
What is the typical price of a round-trip flight between Chicago and Brussels?
What is the cheapest month to fly to Brussels?
In general, October is the cheapest month to fly from Chicago to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $570. If you are unable to visit Brussels during the month of October, then departing from Chicago during the month April is also very affordable. Most momondo users find prices during this month for around $573.
What is the cheapest day to depart on your flight to Brussels?
On average, the least expensive day to fly to Brussels from Chicago is on a Monday. momondo users have found tickets for Monday departures for as low as $1,090. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,272.
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 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 $1,177.
What is the cheapest Chicago to Brussels flight route?
Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around $808 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from Chicago for as low as $610 on momondo.
What cabin class options are available on Chicago to Brussels flights?
There are 3 cabin classes available to choose from on Chicago 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 to Brussels?
Icelandair and Scandinavian Airlines are the most popular carriers operating from Chicago to Brussels
What airlines fly to Brussels?
Scandinavian Airlines, United Airlines and Aer Lingus are the top three most popular airlines that fly to Brussels from Chicago according to our data. Scandinavian Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Brussels. Keep in mind that there are 10 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 to Brussels on average per day?
As of July 2025, there are 5 flights per day flying from Chicago to Brussels. The most common time of day flights depart is 5:00PM, with 100% of flights taking off in the afternoon.
How many flights depart from Chicago to Brussels on average per week?
As of July 2025, 35 flights take off from Chicago and land in Brussels each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
Cheap Chicago to Brussels flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Brussels
How far is Chicago to Brussels by plane?
The distance between Chicago and Brussels is about 4136.1 mi. By plane, this route typically takes 10h 25m.
When did momondo last update prices for flights from Chicago to Brussels?
Prices for flights from Chicago to Brussels refresh daily.
How many operators does momondo search for flights from Chicago to Brussels?
The number of operators available for flights from Chicago to Brussels is 10 as of July 2025.
How old do you have to be to fly from Chicago to Brussels?
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.
What documentation or ID do you need to fly to Brussels?
The travel and health documents you'll need for your trip to Brussels 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Chicago to Brussels
Compare and see reviews for airlines that fly from Chicago to Brussels with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $312 | Free Cancellation | Rating 7.3 1,415 reviews | |||
| PriceFrom $405 | Free Cancellation | Rating 7.0 514 reviews | |||
| PriceFrom $492 | Free Cancellation | Rating 7.3 3,896 reviews | |||
| PriceFrom $506 | Free Cancellation | Rating 7.8 1,370 reviews | |||
| PriceFrom $513 | Free Cancellation | Rating 7.1 1,914 reviews | |||
| PriceFrom $551 | Free Cancellation | Rating 6.6 7,103 reviews | |||
| PriceFrom $552 | Free Cancellation | Rating 7.1 1,151 reviews | |||
| PriceFrom $590 | Free Cancellation | Rating 7.4 8,843 reviews | |||
| PriceFrom $725 | Free Cancellation | Rating 6.8 7,193 reviews | |||
| PriceFrom $813 | Free Cancellation | Rating 7.3 351 reviews |
Why use momondo?
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?
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 offers price alerts on flights to Brussels from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.