Best time to go: what is the RIGHT price for a round-trip flight to Brussels (from: Chicago)

The average price to go to Brussels from Chicago airport is $ 1008 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 766 (in february) and $ 1448 (in june), which is a saving of $ 242 or a surplus of $ 441 (compared to the average price) depending on the period you leave.

The analysis of all prices reveals that the most frequent price is between $685 to $738 and it is generally more economical to leave on a wednesday and return on a tuesday on a flight with 1 or more layovers.

Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to Brussels before booking your flight.

If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your Chicago-Brussels plane ticket.

How are these data calculated?

We have studied a sample of 42319 airfare prices from previous years for flights to Brussels from Chicago and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.

Average price depending on the departure month

Data analysis:

By leaving in february, the price of the plane ticket will statistically be the cheapest ($ 766, saving $ 242 compared to the average price over the year which is $ 1008). Conversely, june will be the most expensive ($ 1448).

Flight Chicago-Brussels: when is the best time to go for the best price?

Month Good price* Average price Our opinion
January$ 605 $ 770 good price
February$ 581 $ 766 very good price
March$ 682 $ 947 good price
April$ 673 $ 871 good price
May$ 804 $ 1145 fair price
June$ 1131 $ 1448 very high price
July$ 1098 $ 1388 high price
August$ 835 $ 1093 fair price
September$ 717 $ 976 good price
October$ 695 $ 895 good price
November$ 605 $ 787 good price
December$ 730 $ 997 fair price

*great price to buy your plane ticket: if you see this price or cheaper during your flight search, go for it and buy it!

Price breakdown to travel from Chicago to Brussels

Data analysis:

The prices for flights from Chicago to Brussels range from $369 to $1792. 1% of tickets were purchased at the minimum price (from $369 to $422), 1% at the maximum price (from $1739 to $1792). The majority of plane tickets were purchased in the range of $685 to $738 (7% of tickets).

Cheapest airlines for the Chicago->Brussels flight

There are 9 companies that serve Chicago from Brussels airport: Lufthansa, United, SAS, Brussels Airlines, Aer Lingus, Turkish Airlines, TAP, Spirit Airlines and Icelandair.

Data analysis:

Of the 42319 flights analyzed in previous years, Lufthansa was the airline that offered the best fare most often in the flight ticket search results (39% of the time) on the Chicago->Brussels route.

Direct flight or flight with layover?

Data analysis:

To get the best price for the Chicago-Brussels flight, you should take a flight with one or more layovers (you will save an average of $ 534 compared to a direct flight).

Which day of the week to leave?

Data analysis:

Statistically, Chicago-Brussels flights departing on a wednesday are cheaper than on other days of the week. By choosing a wednesday as your departure date, you can save an average of $87. On the other hand, departing on a saturday may cost you an additional $114.

Which day of the week to come back?

Data analysis:

Statistically, return flights from Brussels to Chicago departing on a tuesday are cheaper than on other days of the week. By choosing a tuesday for your return date, you will save an average of $76. Conversely, departing from Brussels on a friday may cost you an additional $113.


Top prices Chicago-Brussels

Round tripDatesPrice
Chicago → Brussels05-12 to 12-12-2024$ 630 
Chicago → Brussels09-12 to 16-12-2024$ 613 
Chicago → Brussels06-01 to 13-01-2025$ 458 
Chicago → Brussels13-01 to 21-01-2025$ 583 
Chicago → Brussels03-02 to 20-02-2025$ 439 
Chicago → Brussels09-02 to 20-02-2025$ 439 
Chicago → Brussels14-02 to 21-02-2025$ 539 
Chicago → Brussels14-05 to 19-05-2025$ 613 
Chicago → Brussels09-10 to 23-10-2025$ 571 
Chicago → Brussels12-10 to 26-10-2025$ 564 


When to book your flight Chicago - Brussels to get the cheapest price?

Statistically, you will make the biggest savings by buying your plane ticket between 11 to 12 months in advance. However, you may end up paying a high price if you book between 0 to 1 month in advance.

Did you know: the price of plane tickets not only varies depending on how far in advance you book, but also on the day of the week you book! So, to maximize your chances of getting the best price for a Chicago-Brussels flight, it is recommended to book your ticket on a sunday.

How far in advance should I buy my flight?

Data analysis:

To get the cheapest flight ticket from Chicago to Brussels, it is recommended to buy it 11 to 12 months before departure (it is then on average 890 $, which is a saving of 118 $ compared to the overall average price). On the other hand, if you buy your ticket 0 to 1 month in advance, you will pay the full price (210 $ more than the average price).

Depending on the departure month

The best time to buy your Chicago to Brussels flight ticket may vary depending on your departure month. Therefore, we offer you statistics on when to book your flight month by month.

Departure on... How far in advance should I book?
January

Best time: 5 to 6 months before departure (average price: 657 $)

Other interesting period(s): 1 to 2 months ($ 748), 2 to 3 months ($ 701), 3 to 4 months ($ 766), 4 to 5 months ($ 692), 6 to 7 months ($ 700)

February

Best time: 3 to 4 months before departure (average price: 640 $)

Other interesting period(s): 2 to 3 months ($ 647), 4 to 5 months ($ 702), 5 to 6 months ($ 651), 6 to 7 months ($ 656)

March

Best time: 9 to 10 months before departure (average price: 757 $)

Other interesting period(s): 3 to 4 months ($ 830), 4 to 5 months ($ 814), 5 to 6 months ($ 824), 6 to 7 months ($ 774), 7 to 8 months ($ 809)

April

Best time: 1 to 2 months before departure (average price: 848 $)

Other interesting period(s): 0 to 1 month ($ 852), 4 to 5 months ($ 856), 5 to 6 months ($ 858), 9 to 10 months ($ 870)

May

Best time: 1 to 2 months before departure (average price: 919 $)

Other interesting period(s): 2 to 3 months ($ 1106), 9 to 10 months ($ 1041)

June

Best time: 7 to 8 months before departure (average price: 1267 $)

Other interesting period(s): 1 to 2 months ($ 1368), 2 to 3 months ($ 1276), 3 to 4 months ($ 1419), 6 to 7 months ($ 1410), 8 to 9 months ($ 1406), 9 to 10 months ($ 1343), 10 to 11 months ($ 1388)

July

Best time: 3 to 4 months before departure (average price: 1217 $)

Other interesting period(s): 1 to 2 months ($ 1365), 2 to 3 months ($ 1269), 4 to 5 months ($ 1237), 7 to 8 months ($ 1333), 8 to 9 months ($ 1314), 9 to 10 months ($ 1353), 10 to 11 months ($ 1338)

August

Best time: 3 to 4 months before departure (average price: 981 $)

Other interesting period(s): 1 to 2 months ($ 1025), 2 to 3 months ($ 986), 4 to 5 months ($ 1037), 5 to 6 months ($ 999)

September

Best time: 5 to 6 months before departure (average price: 776 $)

Other interesting period(s): 1 to 2 months ($ 900), 2 to 3 months ($ 938), 3 to 4 months ($ 969), 4 to 5 months ($ 920), 6 to 7 months ($ 876), 9 to 10 months ($ 860)

October

Best time: 7 to 8 months before departure (average price: 693 $)

Other interesting period(s): 1 to 2 months ($ 880), 2 to 3 months ($ 810), 3 to 4 months ($ 831), 4 to 5 months ($ 809), 5 to 6 months ($ 799), 6 to 7 months ($ 820), 10 to 11 months ($ 822)

November

Best time: 2 to 3 months before departure (average price: 696 $)

Other interesting period(s): 3 to 4 months ($ 714), 4 to 5 months ($ 701), 5 to 6 months ($ 720), 6 to 7 months ($ 720), 7 to 8 months ($ 753), 8 to 9 months ($ 722)

December

Best time: 8 to 9 months before departure (average price: 794 $)

Other interesting period(s): 2 to 3 months ($ 995), 3 to 4 months ($ 888), 4 to 5 months ($ 864), 5 to 6 months ($ 887), 6 to 7 months ($ 950)

What day of the week should I book my flight ticket?

Data analysis:

Statistically, sunday is the day when plane tickets for Chicago->Brussels are the cheapest. So, by buying your plane ticket on a sunday, you will save $59. Conversely, by buying it on a thursday, you may end up paying $31 more.



Chicago to Brussels: flight price when booking today

Information: this data is not statistics but comes from real prices collected less than 7 days ago. Some months may not be available as we do not have enough data for them.

Month Current price
November 2024$ 2156
$1172 to $2905
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December 2024$ 1402
$402 to $2716
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January 2025$ 964
$402 to $1733
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February 2025$ 738
$436 to $1664
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March 2025$ 978
$506 to $1714
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April 2025$ 1014
$539 to $1274
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May 2025$ 1127
$613 to $1412
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June 2025$ 1687
$1684 to $1688
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July 2025$ 1351
$981 to $1619
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August 2025$ 1027
$892 to $1124
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September 2025$ 1094
$1065 to $1124
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October 2025$ 567
$564 to $571
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Data analysis:

Compared to the average price, february, may, july, august and october are cheaper to travel to Brussels. So it may be interesting to book now to leave during these months!



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