Cheap flights from Illinois to Belgium from $245
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Belgium departing on 7/20. 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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Aer Lingus flights from Illinois to Belgium
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How to get the cheapest flight ticket from Illinois 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, October is the cheapest month to fly from Illinois to Belgium. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $561. If you are unable to visit Belgium during the month of October, then departing from Illinois 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 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 Illinois 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 Illinois to Belgium flight route?
Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Illinois - 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 Illinois when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around $808 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from Illinois for as low as $610 on momondo.
What cabin class options are available on Illinois to Belgium flights?
There are 3 cabin classes available to choose from on Illinois 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 Illinois to Belgium?
Icelandair, TAP AIR PORTUGAL, and Scandinavian Airlines are the most popular carriers operating from Illinois 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 Illinois 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 Illinois to Belgium on average per day?
The number of flights available between Illinois and Belgium is 5 per day as of June 2025. The most frequent departure time is 5:00PM, with 100% of daily flights leaving in the afternoon.
How many flights depart from Illinois to Belgium on average per week?
As of June 2025, 35 flights take off from Illinois and land in Belgium each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
Cheap Illinois to Belgium flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Belgium
When did momondo last update prices for flights from Illinois to Belgium?
Prices for flights from Illinois to Belgium are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Belgium?
As of June 2025, there are 9 operators available to choose from for flights from Illinois to Belgium.
How old do you have to be to fly from Illinois 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 Illinois to Belgium.
What documentation or ID do you need to fly to Belgium?
The travel and health documents you'll need for your trip to Belgium 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 Belgium. 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 Illinois to Belgium?
momondo data reveals that the most frequently booked plane model on the route from Illinois 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 Illinois to Belgium
Compare and see reviews for airlines that fly from Illinois to Belgium with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $313 | Free Cancellation | Rating 7.3 1,393 reviews | |||
| PriceFrom $428 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom $492 | Free Cancellation | Rating 7.3 3,852 reviews | |||
| PriceFrom $513 | Free Cancellation | Rating 7.1 1,892 reviews | |||
| PriceFrom $551 | Free Cancellation | Rating 6.6 7,019 reviews | |||
| PriceFrom $552 | Free Cancellation | Rating 7.1 1,118 reviews | |||
| PriceFrom $594 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $728 | Free Cancellation | Rating 6.8 7,149 reviews | |||
| PriceFrom $813 | Free Cancellation | Rating 7.4 355 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Illinois to Belgium?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belgium from Illinois.
Can I find flights from Illinois to Belgium with flexible booking policies on momondo?
momondo does allow users to show only those flights to Belgium from Illinois which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Illinois to Belgium?
Once you have performed a search for Illinois to Belgium flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Illinois to Belgium right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Belgium from Illinois. 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.