$319 Find Cheap Flights from Chicago to Belgium - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Belgium departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Chicago to Belgium Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Belgium that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Belgium

Thu, Oct 1 - Thu, Oct 8
Scandinavian Airlines Logo
7:15 pm - 2:35 pm
ORD
-
BRU
12h 20m
1 stop
Scandinavian Airlines Logo
8:30 pm - 4:10 pm
BRU
-
ORD
26h 40m
1 stop
$608Scandinavian Airlines
Tue, Sep 29 - Tue, Oct 6
Scandinavian Airlines Logo
7:15 pm - 2:35 pm
ORD
-
BRU
12h 20m
1 stop
Scandinavian Airlines Logo
7:10 pm - 4:10 pm
BRU
-
ORD
28h 00m
1 stop
$610Scandinavian Airlines
Tue, Dec 1 - Wed, Dec 9
Scandinavian Airlines Logo
7:15 pm - 6:35 pm
ORD
-
BRU
16h 20m
1 stop
Scandinavian Airlines Logo
10:20 am - 4:55 pm
BRU
-
ORD
13h 35m
1 stop
$611Scandinavian Airlines
Wed, Sep 16 - Tue, Sep 22
TAP AIR PORTUGAL Logo
6:00 pm - 11:55 pm
ORD
-
BRU
22h 55m
1 stop
TAP AIR PORTUGAL Logo
8:55 pm - 4:00 pm
BRU
-
ORD
26h 05m
1 stop
$685TAP AIR PORTUGAL
Wed, Sep 16 - Tue, Sep 22
TAP AIR PORTUGAL Logo
6:00 pm - 11:55 pm
ORD
-
BRU
22h 55m
1 stop
TAP AIR PORTUGAL Logo
8:55 pm - 4:00 pm
BRU
-
ORD
26h 05m
1 stop
$687TAP AIR PORTUGAL
Mon, Sep 21 - Wed, Sep 30
Multiple Airlines Logo
9:00 pm - 8:25 am
ORD
-
CRL
28h 25m
1 stop
Multiple Airlines Logo
9:45 pm - 5:50 pm
CRL
-
ORD
27h 05m
2 stops
$766Multiple Airlines
Mon, Aug 24 - Thu, Sep 3
Multiple Airlines Logo
7:25 pm - 8:35 pm
ORD
-
CRL
18h 10m
2 stops
Multiple Airlines Logo
9:05 pm - 7:15 pm
CRL
-
ORD
29h 10m
2 stops
$788Multiple Airlines
Mon, Aug 24 - Thu, Sep 3
KLM Logo
12:46 pm - 7:40 am
MDW
-
BRU
11h 54m
1 stop
KLM Logo
9:45 am - 4:15 pm
BRU
-
MDW
13h 30m
1 stop
$931KLM
Mon, Aug 24 - Thu, Sep 3
Delta Logo
10:54 am - 7:40 am
MDW
-
BRU
13h 46m
1 stop
Delta Logo
9:45 am - 6:33 pm
BRU
-
MDW
15h 48m
2 stops
$936Delta
Mon, Aug 24 - Sun, Aug 30
Delta Logo
10:54 am - 7:40 am
MDW
-
BRU
13h 46m
1 stop
Delta Logo
9:45 am - 4:15 pm
BRU
-
MDW
13h 30m
1 stop
$991Delta
Booking Insights

KAYAK's insights & trends for Chicago to Belgium flights

Get data-powered insights and trends into flights from Chicago to Belgium to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Chicago to Belgium flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Belgium from Chicago found in the last 5 days was to Brussels, at $1,135 round-trip. The most popular route is from Chicago O'Hare Intl Airport (ORD) to Brussels Bruxelles-National Airport (BRU), and the cheapest round-trip airline ticket found on this route in the last 5 days was $1,135.

What is the cheapest time of day to fly to Belgium?

The average price for all round-trip flights from Chicago to Belgium depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Belgium is generally in the evening, when round-trip flights cost $1,250 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Belgium is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,250.

What is the cheapest month to fly from Chicago to Belgium?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Belgium, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago to Belgium is May, when tickets cost $129 (return) on average. On the other hand, the most expensive months are June and September, when the average cost of round-trip tickets is $748 and $505 respectively.

What’s the cheapest day of the week to fly from Chicago to Belgium?

The average price of all round-trip flights from Chicago to Belgium clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Belgium on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Chicago to Belgium. For your return ticket, we recommend flying on a Monday and avoiding Saturdays for the best deals.

How far in advance should I book a flight from Chicago to Belgium?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago to Belgium, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago to Belgium, you should book around 2 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$319
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Chicago to Charleroi Brussels

FAQs - booking Belgium flights

  • How does KAYAK find such low prices on flights from Chicago to Belgium?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Belgium.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Belgium?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chicago to Belgium is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Belgium?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Chicago to Belgium with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Belgium?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Chicago to Belgium up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Chicago to Belgium

 
Need help choosing which airline to fly with from Chicago to Belgium? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Scandinavian AirlinesOverall score based on 1828 reviews
7.7Boarding
6.7Entertainment
7.3Comfort
6.7Food
8.0Crew
Airline reviews

Mediocre. Maybe due to Economy light. Staff was great. Space shrunk, not for me, and definitely not for Vikings. Food was decent. Assistance lagging. There was a possibility to upgrade to Premium economy, however my bid was immediately classified as low and not even considered (though well over minimum bid). Thus I was no bleeding dry.

6.0 GoodLibor, Jun 2026
EWR - PRG
Read more Scandinavian Airlines reviews

Mediocre. Maybe due to Economy light. Staff was great. Space shrunk, not for me, and definitely not for Vikings. Food was decent. Assistance lagging. There was a possibility to upgrade to Premium economy, however my bid was immediately classified as low and not even considered (though well over minimum bid). Thus I was no bleeding dry.

Upon departing and landing, the man seating in front of me had his seat leaning back. Taking off nobody told him anything. Landing someone from the crew said something but the passenger ignored him and nobody followed up. Felt a bit unsecured. If this that is some of the basics are missed, what else was overlooked?

On time, reasonably comfortable for economy, decent food. All in all a very good experience.

Every flight got canceled or delayed. Customer service was awful.

They lost my luggage and can’t find it. My trip is ruined. Online tracking of lost luggage doesn’t work

No free Wi-Fi. I have SkyMiles but not a high status, having an account has been enough for Wi-Fi on other flights, but this one was going to charge me to use it. Also turbulence was really bad toward the end, but I didn't count this in my ratings since I know Delta cannot control the weather - it's 2026 and lack of WiFi alone is enough for a poor rating.

The stewardess was incredibly rude. The gave you only one drink with dinner.

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

The worst with the trip was the space in economy, my knees are still hurting. There was no way to control personal air by turning a knob above you, it was way to hot on both rides. During the night flight they allowed 2 people from across the aile which was narrow to sit and talk for 7 hours while also using tablets and the flashlight from their phones pointing into the row where I sat at times. They allowed people with way too large baggage to bring onboard. I paid way too much for the ticket ($1,364} for economy. Kayak misinformed me to get cancellation insurance that was only valid for a very short time (less than 12 hours) and was over one hundred dollars. Hotel booking was incorrect, I had the room booked myself at the hotel, only double or larger rooms available which I paid over 400 dollars for. I will never fly with SAS again unless there is no other alternative.

Crew members were excellent. The seat wasn’t the best as well as a food options.

Smooth travel. Immediate update prior flight delay so I can arrange myself properly without too rush.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

We were an hour and a half late, which caused my rental car company to cancel my reservation. We had no car, had to take a taxi to our hotel, and then a taxi back to get a new car the next day. Sometimes lack of on-time performance can end up costing the passenger a lot of money, none of which is covered by the airline that operated the late flight.

Overall good experience. But seats were small and uncomfortable for the price. Good entertainment, staff friendly and attentive.

Smooth quiet flight take off and landing both excellent. Food was mediocre. Boarding at gate was disorganized and unacceptable.

Very good trip. Nice clean aircraft. Helpful and friendly crew.

Crew members Grainne and Karen were extremely rude and unprofessional

I am very disappointed in that KAYAK sold me this flight as a business class it was not a business class. It was a regular economy class ticket. This was not Art Linus mistake. It was kayaks.

Crew was friendly and seats were comfortable. The connection however there were no free snacks or drinks.

Our flight from Dublin to Coruna did not exist any more. Apparently it was cancelled in February and I was not advised, nor was I offered any flights for rebooking. Happily Aer Lingus found another flight to another city in Spain that was 500 miles from Coruna; I had to pay for a hotel overnight and a revise my rental car that incurred additional costs, and I did not get to Coruna for another 24 hours. I was not at all impressed with Kayak or Chatdeal or Hertz.

OK overall. Flight was delayed Crew on flight was good

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

Everything you need to know for your flight from Chicago to Belgium

Cabin class types available on flights to Belgium

Cabin classes available on flights to Belgium. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.