$354 Find Cheap Flights from Belgium to Chicago - 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 10/4. 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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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

Mon, Sep 14 - Sun, Oct 4
Multiple Airlines Logo
9:30 am - 8:41 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
18h 11m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Island
Multiple Airlines Logo
7:25 pm - 12:55 pmORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
10h 30m1 stop Reykjavik Keflavik Intl
$779Multiple Airlines
Thu, Aug 27 - Wed, Sep 9
Multiple Airlines Logo
8:15 am - 3:05 pmCRL  Charleroi Brussels-ORD Chicago O'Hare Intl
13h 50m1 stop Krakow J. Paul II Balice
Multiple Airlines Logo
5:10 pm - 5:45 pmORD  Chicago O'Hare Intl-CRL Charleroi Brussels
17h 35m1 stop Krakow J. Paul II Balice
$780Multiple Airlines
Thu, Jan 28 - Mon, Feb 1
Icelandair Logo
12:50 pm - 5:20 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
11h 30m1 stop Reykjavik Keflavik Intl
Icelandair Logo
6:30 pm - 11:55 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
10h 25m1 stop Reykjavik Keflavik Intl
$782Icelandair
Sun, Jan 31 - Sat, Feb 6
Icelandair Logo
12:50 pm - 5:20 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
11h 30m1 stop Reykjavik Keflavik Intl
Icelandair Logo
6:30 pm - 11:55 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
10h 25m1 stop Reykjavik Keflavik Intl
$782Icelandair
Fri, Sep 11 - Fri, Sep 18
Lufthansa Logo
10:30 am - 7:55 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
16h 25m1 stop Frankfurt am Main
Lufthansa Logo
6:00 pm - 9:00 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
8h 00mnonstop
$801Lufthansa
Thu, Oct 29 - Thu, Nov 19
Lufthansa Logo
7:00 am - 2:10 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
13h 10m1 stop Frankfurt am Main
Lufthansa Logo
5:50 pm - 8:55 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
8h 05mnonstop
$803Lufthansa
Tue, Sep 15 - Thu, Sep 24
Lufthansa Logo
6:20 am - 2:55 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
15h 35m1 stop Frankfurt am Main
Lufthansa Logo
6:00 pm - 9:00 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
8h 00mnonstop
$803Lufthansa
Wed, Dec 16 - Sun, Jan 3
United Airlines Logo
10:30 am - 8:05 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
16h 35m1 stop Frankfurt am Main
United Airlines Logo
5:50 pm - 8:55 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
8h 05mnonstop
$828United Airlines
Wed, Dec 16 - Tue, Jan 5
United Airlines Logo
8:25 am - 1:10 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
11h 45m1 stop Frankfurt am Main
United Airlines Logo
3:45 pm - 1:15 pmORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
14h 30m1 stop London Heathrow
$828United Airlines
Fri, Dec 18 - Fri, Jan 1
United Airlines Logo
7:00 am - 3:20 pmBRU  Brussels Bruxelles-National-ORD Chicago O'Hare Intl
15h 20m1 stop Frankfurt am Main
United Airlines Logo
5:50 pm - 8:55 amORD  Chicago O'Hare Intl-BRU Brussels Bruxelles-National
8h 05mnonstop
$828United Airlines
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 Wednesday 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 $1,027 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 October, where tickets cost $680 on average for return flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Belgium is $962 and $907 respectively. For one-way flights, the best month to travel is May with an average price of $655.

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 $888 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 $888.

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 $863 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 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low season

February
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 18% increase in price.

FAQs - booking Chicago 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 $985. The cheapest price found on KAYAK in the last 2 weeks cost $772 and departed from Brussels Bruxelles-National Airport.

  • How does KAYAK find such low prices on flights to Chicago?

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago 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?

    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 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?

    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 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

  • Looking for cheap airfare to Chicago? 25% of our users found round-trip tickets to Chicago for the following prices or less: From Brussels Bruxelles-National $1,696
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago 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 10105 reviews
6.7Food
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
Airline reviews

Flight was great. Almost miss my connecting flight due to late departure from Haneda. Had to run all through airport in Chicago to make the flight. Experience was great for 1st time flyers using ANA Airlines.

10.0 Excellentjose, Aug 2026
Read more United Airlines reviews

Flight was great. Almost miss my connecting flight due to late departure from Haneda. Had to run all through airport in Chicago to make the flight. Experience was great for 1st time flyers using ANA Airlines.

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

Seats are complete BS for 10 hrs. The guy at counter canceled our return flight from europe. Lufthansa on the way back made United look like a trailer park gathering. If given the opportunity, I will never fly united again. Lufthansa seats werent much better to be fair but the service was a 10 out of 10. Incant express how difficult umited made my trip.

It was a great experience to fly with ANA, the sit is very comfortable.

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

I’m an EP on AA every year for more than a decade but this was a very pleasant and surprising experience. Clean and sizable plane for HOU to CHI. 5 row first class. And excellent food in first class the steak option was really good. Your flight attendants even better. Seat 5A

Gluten free snack options and meals that offer both gluten free and dairy free.

Not a bad flight but a long delay boarding and taking off due to the pilot not arriving on time.

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 blanket was great and pillow helped. really need a toothpick packed with meals

Very comfortable plane. The food was very good (for airplane food). The crew was great

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.

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
South Holland
Portage
Oakbrook Terrace
Willowbrook
Lansing
Delavan
Alsip
Northbrook
Lisle
Valparaiso

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

Information on the airport you'll fly into in Chicago