$304 Find Cheap Flights from Chicago to Belgium

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 4/20. 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

Tue, Apr 21 - Tue, May 5
Turkish Airlines Logo
8:10 pm - 10:10 am
ORD
-
BRU
31h 00m
1 stop
Turkish Airlines Logo
2:25 pm - 9:40 am
BRU
-
ORD
26h 15m
1 stop
$552Turkish Airlines
Sun, Apr 12 - Fri, Apr 17
Icelandair Logo
7:25 pm - 12:55 pm
ORD
-
BRU
10h 30m
1 stop
Icelandair Logo
1:50 pm - 9:25 pm
BRU
-
ORD
14h 35m
1 stop
$578Icelandair
Tue, Sep 1 - Tue, Sep 15
Turkish Airlines Logo
11:25 am - 9:55 am
ORD
-
BRU
15h 30m
1 stop
Turkish Airlines Logo
6:55 pm - 9:40 am
BRU
-
ORD
21h 45m
1 stop
$579Turkish Airlines
Mon, Apr 27 - Mon, May 4
Turkish Airlines Logo
8:10 pm - 9:25 pm
ORD
-
BRU
18h 15m
1 stop
Turkish Airlines Logo
7:20 am - 9:40 am
BRU
-
ORD
33h 20m
1 stop
$589Turkish Airlines
Sun, Apr 26 - Tue, May 5
TAP AIR PORTUGAL Logo
6:00 pm - 3:05 pm
ORD
-
BRU
14h 05m
1 stop
TAP AIR PORTUGAL Logo
8:55 pm - 4:00 pm
BRU
-
ORD
26h 05m
1 stop
$619TAP AIR PORTUGAL
Sun, Apr 26 - Tue, May 5
Multiple Airlines Logo
11:25 am - 7:00 pm
ORD
-
CRL
24h 35m
2 stops
Multiple Airlines Logo
2:45 pm - 9:40 am
CRL
-
ORD
25h 55m
2 stops
$642Multiple Airlines
Sun, Apr 26 - Tue, May 5
KLM Logo
10:41 am - 7:40 am
MDW
-
BRU
13h 59m
1 stop
KLM Logo
9:45 am - 4:26 pm
BRU
-
MDW
13h 41m
1 stop
$1,224KLM
Sun, Apr 26 - Tue, May 5
KLM Logo
10:41 am - 7:40 am
MDW
-
BRU
13h 59m
1 stop
KLM Logo
9:45 am - 4:26 pm
BRU
-
MDW
13h 41m
1 stop
$1,225KLM
Sun, May 3 - Tue, May 12
Air France Logo
12:52 pm - 7:40 am
MDW
-
BRU
11h 48m
1 stop
Air France Logo
9:45 am - 4:12 pm
BRU
-
MDW
13h 27m
1 stop
$1,226Air France
Sun, May 3 - Tue, May 12
Air France Logo
10:41 am - 7:40 am
MDW
-
BRU
13h 59m
1 stop
Air France Logo
9:45 am - 4:12 pm
BRU
-
MDW
13h 27m
1 stop
$1,228Air France
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 72 hours was to Brussels, at $764 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 72 hours was $764.

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 $1,182 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 $1,182.

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 February, when tickets cost $512 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,469 and $1,223 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 Sunday 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 37% 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$304
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 18% 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 5 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
United AirlinesOverall score based on 9532 reviews
8.1Crew
7.1Entertainment
7.3Comfort
7.7Boarding
6.6Food
Airline reviews

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

8.0 ExcellentAnonymous, Mar 2026
ORD - EWR
Read more United Airlines reviews

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Awful. No counter attendants. No dinner offered due to delays.

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

As a first time flyer with Turkish Airlines. My experience was very good due to the factor that there were to many passengers on the my first flight compared to my connecting flight. However, I know that nothing is perfect and all companies are trying to accommodate their passengers to the best way possible. I will always say, a FEW INCHES will go LONG WAY. That's something all airliners should consider, and not only the money aspect!!! A long time commitment is better than one time service! Thank you

Flight was delayed. While standing at the gate, a note appeared on the sign saying the gate had changed to a gate far away. No member of the Turkish airlines team got on the microphone to instruct passengers to go to the other gate, to ignore the chiron, etc. Finally, the message disappeared. Eventually, the flight began to board. Very slowly. More slowly than I experience with other airlines. Though Istanbul may just be slow . . . In all other ways, great flight, great entertainment (top notch movies), great service, excellent food, comfortable lie-flat seat, dimmed lights, etc.

Staff at the airport wasn't helpful or friendly. Probably the worst airport experience I have ever had, going and coming. The staff on the plane was better. Still not super friendly or personable. However, they were not rude like airport staff. They ran out of certain menu items. Maybe could have been prepared better? Overall just ok.

It was a pleasant experience. In flight entertainment could have been better

The desk crew at the LAX crew could do better. A girl named Mahesi was very abrasive and unfriendly. She needs a better customer service uproar.

It was peaceful excited We enjoyed it always Turkish peaceful excited

Istanbul to Lahore flight was less than standard for international business class cabins. Seat did not were not flat and it did not operate easily. I had to push buttons hard repeatedly to operate the seat. I was in 5A seat

IAH to Istanbul was outstanding across the board. The flight from Istanbul to Male was good, not great.

the cabin was kept too hot. couldn't sleep as a result

It was an amazing experience. Flight crew's service, hospitality, and the food were phenomenal. I don't think I'd want to try any other airline company after this. I would definitely recommend to friends and family. Thank you Turkish Airlines !

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.

5 of my 7 pieces of luggage are missing and they cant call to find out where it is. I have to fill out a form and wait for them to mail it to me in several days (if they find it). That does not work for my travel itinerary. I need my full ticket cost refunded please.

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

The crew was friendly, the flight was pleasant. Thank you for your service!

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

Amazing! Everyone was so nice and the food was so good!!

Terrible customer service. The flight attendants were rude. We experienced significant turbulence for a large portion of the flight and there was very little check in from the flight deck. The space was extremely limited to the point where it felt like torture. Never again

The check in process at the front desk felt slow and it was frustrating that we could not check in online. Everything about the actual flight was great, including very kind flight attendants and a nice larger bathroom. Only thing is that it was very cold in the plane!

I flew economy class. Seats were very good and the crew was excellent

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

Well, I think we left close to on time. Crew was “eh”.

It’s my new favourite airline! Everything was smooth and relaxed!

This is a bit of a rant, but I'll try to keep it civil. The flight was delayed for 2 hours with almost ZERO updates from agents. Just "there's technical issues, we don't know if or when it'll be resolved" once an hour maybe? And the gate signs, and app never updated to show the delay until it was finally resolved. So when I called Aer Lingus to see if I could rebook, I had literally the dumbest conversation with the person on the phone there where he says "It's showing your flight departed at 11:10. So it's already departed!", where I responded, "Well, it's 12:45 and I'm on the phone with you, standing in the airport, staring at the plane. So...I'm not sure what your system is saying, but we aren't in the air right now.". He said "Nothing I can do. Since it doesn't show delayed in my system, you would be charged to reschedule." Once we finally departed 2 hours late, things were going smoothly as I would expect, except in another very strange way. The stewardesses were rolling the cart down the aisle offering drinks and I asked for a water, to which they said "Sure, you can buy a bottle". I'm not sure if this is an Aer Lingus thing. Maybe something I'd expect from Ryan Air, but for a 3 hour international flight, to not have complimentary water available for customers is an absolute first, in 15 years of flying for me. I'm not upset with the plane staff at all. They were very friendly, but Aer Lingus' policies, how they handled the delay, and the unbelievable conversation with the customer service representative, leaves a lot to be desired in those areas. Also, I'm not upset about the delay. Things happen. Technical issues. But this is a place where airlines really need to clearly communicate with their customers. They also changed gates from 12N to 13N and there was no notification on any app, or announcement over the PA. End of rant. I hope they get some feedback on how to improve communication, because otherwise, they were great. And the second leg of my trip was incredibly smooth - no nickle and diming water, no communication issues. Very professional and efficient and even landed early

The most uncomfortable seat i’ve ever had on a flight

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

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.