Cheap flights from Chicago O'Hare Intl Airport to Belgium 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 Belgium 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.
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 O'Hare Intl Airport to Belgium
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Air Canada flights from Chicago O'Hare Intl Airport to Belgium
Our best Air Canada deals on Chicago O'Hare Intl Airport to Belgium flight tickets
United Airlines flights from Chicago O'Hare Intl Airport to Belgium
Our best United Airlines deals on Chicago O'Hare Intl Airport to Belgium flight tickets
See travel insights to Belgium from
How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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, September is the cheapest month to fly from Chicago O'Hare Intl Airport to Belgium. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $562. If you are unable to visit Belgium 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 $581.
What is the cheapest day to depart on your flight to Belgium?
Our data shows that Monday is the least expensive day to fly to Belgium. Tickets to fly out on this day can be as low as $1,124. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,289. 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 O'Hare Intl Airport 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 $1,176. 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 O'Hare Intl to Belgium flight route?
Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago O'Hare Intl - 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 O'Hare Intl Airport when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Belgium 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 Belgium 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 Belgium flights?
There are 3 cabin classes available to choose from on Chicago O'Hare Intl to Belgium 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 Belgium?
Icelandair, Scandinavian Airlines, and Air Canada are the most popular carriers operating from Chicago O'Hare Intl to Belgium
What airlines fly to Belgium?
Scandinavian Airlines, United Airlines and Aer Lingus are the top three most popular airlines that fly to Belgium 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 Belgium. Keep in mind that there are 9 different airlines that fly to Belgium 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 Belgium on average per day?
5 flights are operational daily from Chicago O'Hare Intl Airport to Belgium 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 Belgium on average per week?
As of June 2025, there are 35 flights per week flying from Chicago O'Hare Intl Airport to Belgium. 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 Belgium flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Belgium
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Belgium?
Prices for flights from Chicago O'Hare Intl Airport to Belgium were last updated today.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Belgium?
As of June 2025, there are 9 operators available to choose from for flights from Chicago O'Hare Intl Airport to Belgium.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Belgium?
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 Belgium.
What documentation or ID do you need to fly to Belgium?
The necessary travel and health documents for your Belgium trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Chicago O'Hare Intl Airport to Belgium?
momondo data reveals that the most frequently booked plane model on the route from Chicago O'Hare Intl Airport to Belgium is Boeing 787 Dreamliner, representing 40.35% of all bookings. The subsequent popular models are Boeing 787-10 Dreamliner at 32.92%, Boeing 787-8 Dreamliner at 10.64%, and Boeing 787-9 Dreamliner at 3.47%.
Best airlines flying from Chicago O'Hare Intl Airport to Belgium
Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Belgium 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 |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Belgium?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Belgium. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Chicago to Belgium with flexible booking policies on momondo?
momondo does allow users to show only those flights to Belgium from Chicago which offer a flexible booking policy as well as other useful filters and features.
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.