$307 Find Cheap Flights from Chicago to Belgium - Compare and Save

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Cheap Flights from Chicago to Belgium

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Brussels
7h 55mNonstop
from $591per person
Booking Insights

Price, demand and travel trends for Chicago to Belgium flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Chicago to Belgium cheaper or more expensive than last year?

Fares from Chicago to Belgium are running about 6% higher than they were around this time last year, averaging $836 round-trip.

What are the cheapest fares from Chicago to Belgium right now?

The cheapest fare from Chicago to Belgium in the last week was $591 round-trip, to Brussels Bruxelles-National (BRU).

What’s the cheapest month to fly from Chicago to Belgium?

April is the cheapest time of year to fly, with average fares of $610. Prices are highest in June, when average flight costs increase to around $1,858.

When is the best time to book flights from Chicago to Belgium?

Book your flights 6 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 37% compared to booking last-minute (within 2 weeks of departure).

Which airport in Belgium is the cheapest to fly to from Chicago?

All flights from Chicago to Belgium arrive at Brussels Bruxelles-National (BRU). On average, round-trip fares are around $816.

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

Monday tends to be the cheapest day to fly from Chicago to Belgium, while Tuesday is the most expensive. Fares run about 35% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Chicago to Belgium?

Data from the past 12 months shows it's cheapest to fly to Belgium during the morning with average prices of $709. The night is the most expensive time to fly, with average prices of $1,091.

Key details for Chicago to Belgium flights

Low season

May

Cheapest flight

$307
One-way flight from Chicago O'Hare Intl Airport to Brussels Bruxelles-National Airport

Your Chicago to Belgium flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Chicago to Belgium?

    Yes. Fares from Chicago to Belgium are low right now. As a rule of thumb, a round-trip under $623 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Chicago to Belgium?

    Over the past 12 months, round-trip fares from Chicago to Belgium have ranged from $623 to $1,158.

  • What are the main airports serving Belgium?

    Flights to Belgium all arrive at Brussels Bruxelles-National (BRU).

  • What airlines fly nonstop from Chicago to Belgium?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from Chicago to Belgium: United Airlines.

  • Where in Belgium can I fly nonstop from Chicago?

    Based on the flight schedule for the next 3 months, you can only fly nonstop from Chicago to Brussels.

  • Is it cheaper to fly with a layover from Chicago to Belgium?

    Yes. Nonstop flights from Chicago to Belgium average $1,294 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Lisbon Humberto Delgado (LIS) from $511
    • Kastrup Copenhagen (CPH) from $712
    • Amsterdam Schiphol (AMS) from $739

  • How long is a flight from Chicago to Belgium?

    Flights from Chicago to Belgium take 8h 04m on average.

  • Which cabin classes are available on flights from Chicago to Belgium?

    On flights from Chicago to Belgium you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in Belgium?

    KAYAK travelers' favorite landmarks in Belgium include:

    • Grand Place
    • King Baudouin Stadium
    • Place Sainte-Catherine

  • What are the earliest and latest flights from Chicago to Belgium?

    The earliest nonstop flight from Chicago to Belgium departs at 5:50 pm and the latest departs at 7:00 pm. Nonstop flights take about 8h 04m.

Your guide to booking Chicago to Belgium flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 6 weeks before your trip. KAYAK data shows fares in this window are around 37% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for April when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Monday is usually the cheapest. Flights on Tuesday cost about 35% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in Brussels, which is the most popular destination in Belgium. From there, it's easy to continue on to other popular destinations such as Bruges, Antwerp and Ghent.
  • If you want the shortest trip, choose the Chicago to Belgium nonstop route. If you'd rather save money, the route via Lisbon Humberto Delgado (LIS) is usually the cheapest.

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 2009 reviews
6.8Entertainment
7.7Boarding
7.4Comfort
8.1Crew
6.8Food
Airline reviews

I WAS CANCELLED ! I thought entire flight was canceled but it was still ongoing and I was only canceled as a passenger and one day before my flight with really poor "choice" of next flights that completely ruined my family event. Absolutely disappointed by SAS. Will be avoiding this airline now

2.0 MediocreKamila, Oct 2026
Read more Scandinavian Airlines reviews

I WAS CANCELLED ! I thought entire flight was canceled but it was still ongoing and I was only canceled as a passenger and one day before my flight with really poor "choice" of next flights that completely ruined my family event. Absolutely disappointed by SAS. Will be avoiding this airline now

The flight was fully booked very hot and there was no room for hand luggage. I was surprised that there was not much leg room for such tall people. My seat mate barely had room for his hand luggage and had to put his feet and knees in front of my seat. Crew was a bit brash considering a full flight and late departure because of it.

The flight was pleasant with landing and take off being very smooth. Toilets were a bit busy at times but crew was very accommodating. Food service was quick and hot. The connecting short flight was full and there was not room for hand luggage.

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

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.

On time. Carry on and personal bag was accommodated on the plane. Entertainment was accessible without bringing own device. Whole can of juice was provided rather than a pour.

Price was crazy watch it if you Chan he your flight

On time, easy boarding. Anytime you sit in an economy seat, it’s uncomfortable. New plane and the bathrooms were in the galley at the back of the plane which seemed odd.

Terrible service - they don’t want to be there and bad food. Entertainment system in economy from the 2000s

No drink service but there was no N/A as an option to choose. Seats were extremely tight. I am under 5.5 and I bumped my knees have no idea how taller people could manage.

Flight delayed, last seat on the plane, no arrival Gate available due to the plane departing late

Kayak booked this flight with only 1h 20min layover in Chicago. This made it impossible for me and several other passengers to reach this flight. Moreover, the gate closed boarding in spite of several passengers still on their way without waiting even one more minute. However, the plane departed with 20min (!) delay, i.e., there would have been at least 15 min time to let the delayed passengers board without causing any delays. I complained and as a "thank you" the attendent booked us on the last (!) flight to Indianapolis ~7h later! Thankfully, I caught the spitefulness and the United customer line rebooked the flight to an earlier flight. Although I can't grade this particular flight since I never had a chance to take it, Kayak made the mistake of a too short layover and the crew at the gate was awful.

Flight did not have wifi service. It was experiencing technical difficulties. Definitely and old plane that needs updating.

This flight has a history of leaving late, however, I was pleasantly surprised that it was not delayed this day. The flight went smooth, except I was in a window seat and the wall and my feet were freezing. I found it difficult to sleep due to being so cold, I also was using 2 provided UAL blankets and could not get my feet warm. This was annoying, but I still made it there on time and safe.

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 crew were so friendly and attentive. Probably the best in my experience and I’ve been flying at least four times a year most of my adult life. Very considerate and I appreciate it.

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

Movies were old and third rate. Very poor on a seven hour flight. Food was OK but not business class caliber

Although the flight from JFK to Keflavik is not inexpensive, Iceland Air offers nothing but water, no soft drinks, to passengers without a charge. The seats are uncomfortable, there is no leg room, and there was no available internet to purchase.

Was hard to sleep, but other then that everything was good.

We got to the runway and had to go back to terminal to have plane worked on, which is fine, but the 40 minute connecting flight was already gone because of this delay and had to wait 5 hours to get on a different flight and only got a meal voucher which I didn’t see the email until after I had already ordered and paid for food. I feel I should be compensated.

Horrible. My dad was recently hospitalized and diagnosed with lymphoma and Icelandair refused to refund flight even though I had a letter from his physician.

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

More options for your flight from Chicago to Belgium

Complete your trip to Belgium with a hotel stay or car rental