$361 Find Cheap Flights from Belgium to Chicago O'Hare Airport - 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 to O'Hare Intl departing on 9/24. 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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1 adult, Economy, 0 bags

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Cheap Flights from Belgium to O'Hare Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Belgium to O'Hare Intl 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 Belgium to O'Hare Intl

Thu, Jul 16 - Wed, Jul 29
Lufthansa Logo
8:35 am - 2:55 pm
BRU
-
ORD
13h 20m
1 stop
Lufthansa Logo
10:30 pm - 5:30 pm
ORD
-
BRU
12h 00m
1 stop
$782Lufthansa
Fri, Aug 21 - Thu, Sep 3
Multiple Airlines Logo
9:10 pm - 1:10 pm
BRU
-
ORD
23h 00m
2 stops
Multiple Airlines Logo
3:00 pm - 8:35 pm
ORD
-
BRU
22h 35m
2 stops
$784Multiple Airlines
Sat, Sep 12 - Sat, Sep 26
Delta Logo
6:20 am - 4:59 pm
BRU
-
ORD
17h 39m
2 stops
Delta Logo
10:25 am - 7:35 am
ORD
-
BRU
14h 10m
2 stops
$785Delta
Thu, Jul 16 - Wed, Jul 29
Multiple Airlines Logo
8:35 am - 2:55 pm
BRU
-
ORD
13h 20m
1 stop
Multiple Airlines Logo
6:15 pm - 1:15 pm
ORD
-
BRU
12h 00m
1 stop
$786Multiple Airlines
Thu, Jul 16 - Wed, Jul 29
Lufthansa Logo
8:35 am - 2:55 pm
BRU
-
ORD
13h 20m
1 stop
Lufthansa Logo
6:00 pm - 9:00 am
ORD
-
BRU
8h 00mnonstop
$788Lufthansa
Sat, Sep 12 - Sat, Sep 26
Lufthansa Logo
6:20 am - 2:55 pm
BRU
-
ORD
15h 35m
1 stop
Lufthansa Logo
6:00 pm - 9:00 am
ORD
-
BRU
8h 00mnonstop
$789Lufthansa
Tue, Sep 1 - Sun, Sep 13
Delta Logo
8:05 am - 2:15 pm
BRU
-
ORD
13h 10m
1 stop
Delta Logo
1:55 pm - 2:40 pm
ORD
-
BRU
17h 45m
2 stops
$791Delta
Thu, Jul 16 - Wed, Jul 29
Lufthansa Logo
10:15 am - 12:00 pm
BRU
-
ORD
8h 45mnonstop
Lufthansa Logo
6:00 pm - 9:00 am
ORD
-
BRU
8h 00mnonstop
$792Lufthansa
Thu, Jul 16 - Wed, Jul 29
Lufthansa Logo
10:15 am - 12:00 pm
BRU
-
ORD
8h 45mnonstop
Lufthansa Logo
6:00 pm - 9:00 am
ORD
-
BRU
8h 00mnonstop
$793Lufthansa
Sat, Oct 3 - Sat, Oct 10
Lufthansa Logo
2:25 pm - 7:55 pm
BRU
-
ORD
12h 30m
1 stop
Lufthansa Logo
6:00 pm - 9:00 am
ORD
-
BRU
8h 00mnonstop
$794Lufthansa
Booking Insights

KAYAK's insights & trends for flights to O'Hare Intl

Get data-powered insights and trends for flights to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Chicago?

The average price of all round-trip flights to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Chicago is Monday where round-trip tickets can be as cheap as $830. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,021 on average.

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Chicago O'Hare Intl Airport, 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 to Chicago O'Hare Intl Airport is August, where tickets cost $374 on average for return flights. On the other hand, the most expensive months are May and April, where the average cost of tickets from Belgium is $728 and $637 respectively. For one-way flights, the best month to travel is November with an average price of $313.

What is the cheapest time of day to fly to Chicago O'Hare Intl Airport?

The average price for all round-trip flights to Chicago O'Hare Intl Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Chicago O'Hare Intl Airport is generally in the morning, when round-trip flights cost $874 on average. The most expensive time of day to fly to Chicago O'Hare Intl Airport is generally in the morning, which is peak travel time and where the average cost of a ticket is $874.

What is a good deal for flights to Chicago O'Hare Intl Airport?

If you’re looking for cheap airfare to Chicago O'Hare Intl Airport, 25% of our users found tickets to Chicago O'Hare Intl Airport for the following prices or less: From Brussels Bruxelles-National Airport $833 round-trip.

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Chicago O'Hare Intl Airport, 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, you should book around 2 weeks before departure, which saves you about 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonMarch
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 20% increase in price.

FAQs - booking Chicago O'Hare Airport flights

  • How far is Chicago O'Hare Intl Airport from central Chicago?

    The city center of Chicago is 16 miles from Chicago O'Hare Intl Airport.

  • How much is a flight to Chicago?

    On average, a flight to Chicago costs $921. The cheapest price found on KAYAK in the last 2 weeks cost $780 and departed from Brussels Bruxelles-National Airport.

  • How does KAYAK find such low prices on flights to Chicago O'Hare Airport?

    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 to Chicago O'Hare Airport.

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

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

  • What is the Hacker Fare option on flights to Chicago O'Hare Airport?

    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 to Chicago O'Hare Airport 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 to Chicago O'Hare Airport?

    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 to Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Chicago O'Hare Airport

  • Looking for cheap airfare to Chicago O'Hare Airport? 25% of our users found round-trip tickets to Chicago O'Hare Airport for the following prices or less: From Brussels Bruxelles-National $1,269
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago O'Hare Airport flight deals.

Reviews of the top airlines flying from Belgium to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Belgium to Chicago. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to O'Hare Intl? 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 9929 reviews
6.7Food
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

The flight was delayed an hour and a half while you tried to fix the plane so I missed my connecting flight in Chicago. In Chicago, it took an hour to get the luggage. Then the conveyor belt was broken where I have to transfer my flight from an international flight to the continuing flight so I had to carry a large suitcase through the airport. The elevators were broken in the airport. I paid people to carry the luggage for me up the escalators in two different areas. The person who helped me get the new flight was outstanding. The temperature in the airport in Chicago was horrible. We were all sweating. It was the day from hell. That was after two hours in a security line in Athens. I have TSA pre-checked and global entry and I still waited. Two hours in a security line. Something has got to be done to stream line this service. After I’ve been through all of that in Athens, why do I have to go through it again in Chicago. It was the worst travel experience I have had in a long time. Your bathrooms have gotten so small that you can hardly get your butt on the toilet. You’ve taken the airspace out of the inside of the top of the toilet. It really makes for a miserable experience. Also on a 4 1/2 hour flight from Chicago to Los Angeles. The only thing we’re given is a bag of pretzels. REALLY!!

2.0 Mediocremary kay, Jul 2026
ATH - ORD
Read more United Airlines reviews

The flight was delayed an hour and a half while you tried to fix the plane so I missed my connecting flight in Chicago. In Chicago, it took an hour to get the luggage. Then the conveyor belt was broken where I have to transfer my flight from an international flight to the continuing flight so I had to carry a large suitcase through the airport. The elevators were broken in the airport. I paid people to carry the luggage for me up the escalators in two different areas. The person who helped me get the new flight was outstanding. The temperature in the airport in Chicago was horrible. We were all sweating. It was the day from hell. That was after two hours in a security line in Athens. I have TSA pre-checked and global entry and I still waited. Two hours in a security line. Something has got to be done to stream line this service. After I’ve been through all of that in Athens, why do I have to go through it again in Chicago. It was the worst travel experience I have had in a long time. Your bathrooms have gotten so small that you can hardly get your butt on the toilet. You’ve taken the airspace out of the inside of the top of the toilet. It really makes for a miserable experience. Also on a 4 1/2 hour flight from Chicago to Los Angeles. The only thing we’re given is a bag of pretzels. REALLY!!

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Prefer not to have an almost 3 hour delay with useless communication that wasn't accurate.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

I flew from Barcelona to Chicago on UA yesterday. The flight was on time, the pilots did a great job and the flight attendants were super nice. All of them. Also food was good, and the drinks, including wine were served a few times during our flight. I highly recommend this airline.

Liked the excellent United crew, the food selection, the comfortable cabin and the excellent movie and tv shows selection. The interface on the screen is also excellent and gives the option to let the crew know to wake you up for meals, or not. I disliked the onboarding experience at the Brussels airport. The process is convoluted and was not explained to any passengers. I also don't understand why thee is an additional security screening when getting off the plane from Africa, when there was none when getting off the plane from the US.

It was a good flight. The entertainment could be better.

The legroom was lacking and the entertainment system lacked adequate selection of older films. Modern films are generally not very good.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Everything could have been better. What needed to be wrong with United went wrong

It was good. The seats in economy weren’t bad

Very good. Comfortable and I felt well taken care of from start to finish

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

I don’t understand how they charge as much as they do for such a poor experience

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Traveling to a place near O'Hare Intl?

Book flights to O'Hare Intl if you plan to visit one of these locations
Gurnee
Merrillville
South Haven
Oak Brook
Saint Joseph
Tinley Park
Hammond
Elk Grove Village
Des Plaines
Hoffman Estates
Portage
Willowbrook
South Holland
Delavan
Lansing
Northbrook
Lisle
Elmhurst
Alsip
Pleasant Prairie

Everything you need to know for your flight to O'Hare Intl

Information on the airport you'll fly into in Chicago