Cheap flights from Belgium to Illinois from $252
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belgium to Illinois departing on 9/18. 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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TAP AIR PORTUGAL flights from Belgium to Illinois
Our best TAP AIR PORTUGAL deals on Belgium to Illinois flight tickets
Aer Lingus flights from Belgium to Illinois
Our best Aer Lingus deals on Belgium to Illinois flight tickets
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How to get the cheapest flight ticket from Belgium to Illinois
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 Illinois?
The cheapest month to fly to Illinois from Belgium is in February. Flight prices, which tend to average around $527, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $589.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from Belgium to Illinois is on a Friday when prices can be found for as low as $751. Flights from Belgium to Illinois on a Monday will generally be more expensive and average around $847. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Illinois?
Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Belgium to Illinois during this time can be as low as $583. Flights at noon are often more expensive with an average ticket price of $800.
What is the cheapest Belgium to Illinois flight route?
Fly from Brussels Bruxelles-National to Chicago O'Hare Intl for the best Belgium - Illinois flight prices
How far in advance should I book a flight to Illinois?
You are more likely to see cheaper flights to Illinois from Belgium when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $687 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Belgium for as low as $577 on momondo.
What cabin class options are available on Belgium to Illinois flights?
There are 3 cabin classes available to choose from on Belgium to Illinois 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 Belgium to Illinois?
TAP AIR PORTUGAL, Aer Lingus, and LOT are the most popular carriers operating from Belgium to Illinois
What airlines fly to Illinois?
United Airlines, Lufthansa and Brussels Airlines are the top three most popular airlines that fly to Illinois from Belgium according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from Belgium to Illinois on average per day?
6 flights are operational daily from Belgium to Illinois as of June 2025. The most popular departure time for this route is 10:00AM, with 100% of flights per day taking off at noon.
How many flights depart from Belgium to Illinois on average per week?
As of June 2025, there are 42 flights per week flying from Belgium to Illinois. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.
Cheap Belgium to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Belgium to Illinois
When did momondo last update prices for flights from Belgium to Illinois?
Prices for flights from Belgium to Illinois refresh daily.
How many operators does momondo search for flights from Belgium to Illinois?
There are 4 operators available for flights from Belgium to Illinois as of June 2025.
How old do you have to be to fly from Belgium to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belgium to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Belgium to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Belgium to Illinois is Boeing 787-10 Dreamliner, representing 39.30% of all bookings. The subsequent popular models are Boeing 787 Dreamliner at 39.04%, Airbus A330-300 at 2.35%, and Boeing 787-9 Dreamliner at 2.26%.
Best airlines flying from Belgium to Illinois
Compare and see reviews for airlines that fly from Belgium to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $576 | Free Cancellation | Rating 7.4 8,810 reviews | |||
| PriceFrom $579 | Free Cancellation | Rating 6.7 7,156 reviews | |||
| PriceFrom $592 | Free Cancellation | Rating 7.4 355 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Belgium to Illinois?
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 Illinois from Belgium.
Can I find flights from Belgium to Illinois with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Belgium to Illinois flights to just show those with flexible booking policies.
How can momondo help me find flights from Belgium to Illinois?
Once all potential Belgium to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Belgium to Illinois right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Illinois from Belgium. 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.