$350 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 9/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago, as well as popular online travel agencies
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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

Sun, Jul 5 - Sat, Jul 18
Multiple Airlines Logo
6:20 am - 11:00 am
BRU
-
ORD
11h 40m
1 stop
Multiple Airlines Logo
6:15 pm - 1:15 pm
ORD
-
BRU
12h 00m
1 stop
$796Multiple Airlines
Mon, Aug 17 - Sun, Sep 6
Lufthansa Logo
10:15 am - 12:00 pm
BRU
-
ORD
8h 45mnonstop
Lufthansa Logo
6:00 pm - 9:00 am
ORD
-
BRU
8h 00mnonstop
$798Lufthansa
Sun, Jul 5 - Sat, Jul 18
Lufthansa Logo
10:15 am - 12:00 pm
BRU
-
ORD
8h 45mnonstop
Lufthansa Logo
6:00 pm - 9:00 am
ORD
-
BRU
8h 00mnonstop
$799Lufthansa
Thu, Aug 6 - Wed, Aug 19
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
$800Lufthansa
Thu, Aug 6 - Wed, Aug 19
Multiple Airlines Logo
6:20 am - 2:55 pm
BRU
-
ORD
15h 35m
1 stop
Multiple Airlines Logo
2:20 pm - 8:50 am
ORD
-
BRU
11h 30m
1 stop
$801Multiple Airlines
Sun, Jul 5 - Sat, Jul 18
Lufthansa Logo
10:15 am - 12:00 pm
BRU
-
ORD
8h 45mnonstop
Lufthansa Logo
6:00 pm - 4:15 pm
ORD
-
BRU
15h 15m
1 stop
$802Lufthansa
Fri, Jul 3 - Fri, Jul 17
Multiple Airlines Logo
6:20 am - 2:55 pm
BRU
-
ORD
15h 35m
1 stop
Multiple Airlines Logo
2:20 pm - 8:50 am
ORD
-
BRU
11h 30m
1 stop
$803Multiple Airlines
Sun, Jul 5 - Sat, Jul 18
Multiple Airlines Logo
6:20 am - 11:00 am
BRU
-
ORD
11h 40m
1 stop
Multiple Airlines Logo
6:15 pm - 1:15 pm
ORD
-
BRU
12h 00m
1 stop
$804Multiple Airlines
Mon, Jul 6 - Mon, Jul 20
Multiple Airlines Logo
10:15 am - 12:00 pm
BRU
-
ORD
8h 45mnonstop
Multiple Airlines Logo
6:15 pm - 1:15 pm
ORD
-
BRU
12h 00m
1 stop
$805Multiple Airlines
Sat, Jul 4 - Fri, Jul 17
Lufthansa Logo
10:15 am - 12:00 pm
BRU
-
ORD
8h 45mnonstop
Lufthansa Logo
6:00 pm - 9:00 am
ORD
-
BRU
8h 00mnonstop
$806Lufthansa
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 $821. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,022 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 $870 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 $870.

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 5% drop in price.
Most popular time to fly with an average 18% 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 $971. The cheapest price found on KAYAK in the last 2 weeks cost $784 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 $1,288
  • 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 9865 reviews
7.7Boarding
7.3Comfort
8.1Crew
6.6Food
7.1Entertainment
Airline reviews

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

10.0 ExcellentJoanne, Jun 2026
DEN - ORD
Read more United Airlines reviews

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.

Boarded early, left early, arrived 40 mins early! A win win for me!

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

This flight is a quick way to get to Chicago, but a bit expensive.

The clerk at check in for my bags was very rude. My credit card was hacked during my vacation and she told me it was not possible to pay in cash for my bag. “You bought the cheapest ticket, you should have bought a ticket that included a bag. If you cannot pay with a credit card, we will not let you on this flight”. She spoke to her supervisor and then told me , I could ask other passengers, if they would use their credit card to check my bag. I had to beg 5 different people, till one agreed to use their credit card. I payed them cash of course. This was a very stressful and humiliating experience for me. I strongly suggest you build in some kind of provision for travelers who got robbed.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Flight crew was super friendly and helpful. Food was frequent and honestly pretty good. Plenty of on-board entertainment. Economy seats are super cramped for such a long flight, but the crew allowed people to get up and stretch, and kids could wander with their parents, so we all made it work. Overall a very good experience.

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
South Haven
Merrillville
Oak Brook
Saint Joseph
Tinley Park
Hammond
Elk Grove Village
Des Plaines
Hoffman Estates
Portage
Willowbrook
South Holland
Delavan
Lansing
Northbrook
Lisle
Elmhurst
Pleasant Prairie
Alsip

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

Information on the airport you'll fly into in Chicago