$237 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 10/15. 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.
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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

Fri, Jan 22 - Fri, Jan 29
Aer Lingus Logo
1:20 pm - 9:35 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
13h 15m2 stops Toronto Pearson Intl Dublin
Aer Lingus Logo
10:15 am - 8:00 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
16h 45m2 stops Dublin Toronto Pearson Intl
$510Aer Lingus
Wed, Dec 9 - Sun, Dec 20
Icelandair Logo
6:30 pm - 11:55 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
10h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
12:50 pm - 5:20 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
11h 30m1 stop Reykjavik Keflavik Intl
$549Icelandair
Sat, Oct 31 - Sun, Nov 8
Icelandair Logo
7:30 pm - 11:55 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
10h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
12:50 pm - 5:20 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
11h 30m1 stop Reykjavik Keflavik Intl
$552Icelandair
Wed, Sep 16 - Wed, Sep 23
Turkish Airlines Logo
8:10 pm - 9:25 pmORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
18h 15m1 stop Istanbul
Turkish Airlines Logo
2:55 pm - 9:40 amBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
25h 45m1 stop Istanbul
$690Turkish Airlines
Wed, Dec 2 - Wed, Dec 9
TAP AIR PORTUGAL Logo
7:00 pm - 5:05 pmORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
15h 05m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:00 am - 3:30 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
16h 30m1 stop Lisbon Humberto Delgado
$698TAP AIR PORTUGAL
Thu, Oct 15 - Tue, Oct 27
TAP AIR PORTUGAL Logo
6:00 pm - 8:05 pmORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
19h 05m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
5:55 pm - 4:30 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
28h 35m1 stop Lisbon Humberto Delgado
$698TAP AIR PORTUGAL
Sat, Oct 10 - Wed, Oct 21
Multiple Airlines Logo
7:25 pm - 12:55 pmORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
10h 30m1 stop Reykjavik Keflavik Intl
Multiple Airlines Logo
7:35 pm - 6:15 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
29h 40m3 stops Warsaw Frederic Chopin Gdansk Rebiechowo Reykjavik Keflavik Intl
$705Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Turkish Airlines Logo
8:10 pm - 9:25 pmORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
18h 15m1 stop Istanbul
Turkish Airlines Logo
2:55 pm - 9:40 amBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
25h 45m1 stop Istanbul
$707Turkish Airlines
Wed, Dec 2 - Wed, Dec 9
Multiple Airlines Logo
9:39 am - 9:25 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
16h 46m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
8:30 pm - 1:45 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
24h 15m1 stop London Heathrow
$708Multiple Airlines
Fri, Jan 22 - Fri, Jan 29
Aer Lingus Logo
1:20 pm - 9:35 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
13h 15m2 stops Toronto Pearson Intl Dublin
Aer Lingus Logo
10:15 am - 7:15 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
16h 00m1 stop Dublin
$798Aer Lingus
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 $937 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 $937.

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 at night, when round-trip flights cost $1,233 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 $1,277.

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 April, when tickets cost $647 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,630 and $1,135 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 Wednesday 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 3 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low season

February

Cheapest flight

$237
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly and prices are also 22% 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 4 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 1925 reviews
7.7Boarding
7.3Comfort
6.8Food
6.8Entertainment
8.0Crew
Airline reviews

Everything was perfect. I would’ve liked better selections for entertainment, but I slept most of the time, so it wasn’t really an issue.

10.0 ExcellentAnonymous, Aug 2026
Read more Scandinavian Airlines reviews

Everything was perfect. I would’ve liked better selections for entertainment, but I slept most of the time, so it wasn’t really an issue.

No crying babies the whole flight would be nice. Impossible to sleep. No free snacks , only the main meal

The crew was amazing. Our seats was not very clean and even that was not a full flight but our seats was right beside the WC which did not let us to have a moment of rest.

Excellent service, and came on time! Thank you for your dinner that was chicken with salat/, and 🍰 it was good quality food , the breakfast was very good with good cheese , butter,etc and the tea was very good quality. The space where I was seat was nice so I could stretch my legs. I dit not have the bread as I am in a keto died. Have great time everyone in Scandinavia airline.

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.

It was a good experience, unfortunately my checked baggages were come late and not arrived on time.

Very stressful to locate United Airline boarding area, delayed flight, changing boarding area again to another location with all tiredness 😩. But flying was fine.

It was hot and not as comfortable as the flight to Chicago. Must have been a different plane that needs to be worked on or replaced.

The SFO lounge closes at 12 midnight. My flight took off at 2AM

It was extremely hot in the cabin the entire flight, vent air was worn

Have not had a flight out or returning to Norfolk that has not required maintenance, and a gate delay. Properly staff the crew so maintenance can be performed without last minute emergencies on each flight and there is enough staff to have gates prepared for inbound flights. Staff to ensure the safety and on time service vs. profit.

We were forced to eat vegetarian food because non veg food ran out. The breakfast was mediocre.

My original flight was cancelled and that affected my trip and my plans and I got no compensation and customer service was hard to reach as well

The kid in the middle seat kicked me almost the whole flight, almost kicked my hot tea off my tray. The flight was delayed due to the first plane not being able to be de-iced in July! We had to get a new plane. Now I drive 3 hours back to Edmonton because direct flights from PVR were way to expensive

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.

Awful customer service. What you are told 100% depends on who you talk to.

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

The WiFi wasn’t working, so no one could watch any entertainment for 5 hours. The plane also was delayed and did not leave, nor did the staff prioritize those with connecting flights to de-board first. Everyone with a connecting flight to Munich missed their flight by 5 minutes. Then the next flight to Munich was 14 hours later. The airport could not compensate us because the closest hotel was about 2 hours away. This did not seem like the truth. I was not pleased with this traveling experience.

I DO NOT recommend Iceland air...missed connecting flight.....paid for isle seat upgrade for health reasons...had to do that over....baggage left in the rain so clothes got soaked other items ruined....called customer * dont care* service

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

Damage May baggage and I report the airport agant and they see it

Crew was very friendly. Need lay flat beds! More snacks

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Great crew, bumpy landings, two-hour wait for baggage with no communication or explanation. Will not fly again!

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

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.