$231 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 7/26. 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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Flight Deals

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 - Sun, Oct 11
Scandinavian Airlines Logo
7:15 pm - 2:35 pm
ORD
-
BRU
12h 20m
1 stop
Scandinavian Airlines Logo
3:15 pm - 4:10 pm
BRU
-
ORD
31h 55m
1 stop
$574Scandinavian Airlines
Sun, Dec 6 - Sat, Dec 12
Scandinavian Airlines Logo
7:15 pm - 7:50 pm
ORD
-
BRU
17h 35m
1 stop
Scandinavian Airlines Logo
10:20 am - 4:45 pm
BRU
-
ORD
13h 25m
1 stop
$575Scandinavian Airlines
Thu, Oct 1 - Sat, Oct 10
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
$576Scandinavian Airlines
Wed, Oct 7 - Wed, Oct 21
Scandinavian Airlines Logo
7:15 pm - 7:50 pm
ORD
-
BRU
17h 35m
1 stop
Scandinavian Airlines Logo
10:20 am - 4:10 pm
BRU
-
ORD
12h 50m
1 stop
$587Scandinavian Airlines
Wed, Oct 28 - Mon, Nov 2
Scandinavian Airlines Logo
8:15 pm - 2:30 pm
ORD
-
BRU
12h 15m
1 stop
Scandinavian Airlines Logo
7:15 pm - 4:45 pm
BRU
-
ORD
28h 30m
1 stop
$589Scandinavian Airlines
Sat, Nov 28 - Sun, Dec 13
Scandinavian Airlines Logo
7:15 pm - 9:40 am
ORD
-
BRU
31h 25m
1 stop
Scandinavian Airlines Logo
3:10 pm - 4:45 pm
BRU
-
ORD
32h 35m
1 stop
$590Scandinavian Airlines
Mon, Aug 17 - Sun, Aug 23
Multiple Airlines Logo
7:15 pm - 7:55 pm
ORD
-
CRL
17h 40m
2 stops
Multiple Airlines Logo
8:35 pm - 4:10 pm
CRL
-
ORD
26h 35m
2 stops
$714Multiple Airlines
Sun, Aug 16 - Tue, Aug 25
Delta Logo
12:46 pm - 7:40 am
MDW
-
BRU
11h 54m
1 stop
Delta Logo
9:45 am - 10:36 pm
BRU
-
MDW
19h 51m
1 stop
$746Delta
Sun, Aug 16 - Tue, Aug 25
Delta Logo
12:46 pm - 7:40 am
MDW
-
BRU
11h 54m
1 stop
Delta Logo
9:45 am - 10:36 pm
BRU
-
MDW
19h 51m
1 stop
$749Delta
Sun, Aug 16 - Tue, Aug 25
Delta Logo
12:46 pm - 7:40 am
MDW
-
BRU
11h 54m
1 stop
Delta Logo
9:45 am - 10:36 pm
BRU
-
MDW
19h 51m
1 stop
$750Delta
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 $1,132 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 $1,132.

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 $1,254 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 $1,254.

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 48% 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$231
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Chicago O'Hare Airport to Brussels Airport

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 1854 reviews
7.3Comfort
6.7Entertainment
7.7Boarding
6.7Food
8.0Crew
Airline reviews

Old plane, food not that great - lacked taste. Crew was nice but strict.

4.0 OkayAnonymous, Jun 2026
JFK - CPH
Read more Scandinavian Airlines reviews

Old plane, food not that great - lacked taste. Crew was nice but strict.

Terrible airlines, kept lying to me about the fact that my connection flight was cancelled. Left me hanging until last min. NEVER AGAIN

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?

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

Nothing special or negative. Pretty typical flight…no freebies in the way of food etcetera, but none were expected.

Seat was lumpier than I’ve ever remembered it to be although comfortable when tilted back. I don’t recall being that hungry after being served food from SAS before. Flight attendant on the second flight to Aalborg seemed to be having a bad day.

On this shorter leg and with an older plane, just mediocre. On the connecting long haul (Chicago to Copenhagen) everything was great.

My outbound flight was incredible... Milan to Chicago. The crew worked so well together. Each passenger felt spoiled and incredibly valued. The crew on this flight was fine. Nothing to complain specifically about but could not give top rating only because of the superior crew, hospitality, warmth we felt on the first flight. Unfortunately. You managed to lose my luggage ..my only piece checked in. Lost in Copenhagen so I had the added stress, time wasted to file the report. To make things worse, Italian rail decided to strike that Sunday so I could not take the train as planned back to Switzerland. Horrible waiting time and poor communication for boarding substitution bus. The substition bus to the town of Stabio did not run on time and was late about 40 minutes.

The flight was cancelled early on and messed up the whole vacation and hard to get a refund from Kayak as they owned the ticket and of course they did not believe that SAS cancelled the ticket. Definite bad side to third party. SAS had rescheduled but overlapped the connecting flights. That did not work. Flight was cancelled long ago but Kayak still has it. Like it was taken? Bad IT ? Or all assumptions and no follow up which is the whole IT world. It needs to wake up and be more efficient. Especially as the world is going, there will be no freedom to do anything. And we will be living like the Middle Ages. Yeah, go read up on that while you still can.

Agents at gate were not immediately available to solve problems and once they did they didn’t fix all the fight connections

Great experience. Boarding was fast, staff were very nice and funny, everything at the seat worked well.

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

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.

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

The check in and boarding process was smooth, and the flight was fine.

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.

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

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

I appteciate the very courteous staff. The flight was good. Something that wasn't good was that my bag was only checked as far as Dublin and I had a connecting flight to Vienna. (That was a mistake the ORD desk made.) Fortunately the desk at DUB was able to re-tag without me having to re-check in (which initially it seemed I might have to do.)

It was excellent! The plane left Chicago early. Arrived in Dublin early. The crew was excellent! It was a great experience.

Horrible. Garbage airline. Due to the strike we got a replacement plane/crew. I didn't get my exit row seat I paid for. Food was horrible. Plane was hot and didn't have AC vents.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

Flight was ontime, clean, staff was friendly - there was turbulence but can’t avoid that (it’s a flight 😉)! The staff were attentive but would be nice if Aerlingus didn’t charge for coffee ☺️ but overall I enjoyed my flight experience and will travel with them again (Ireland’s Four star airline

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.