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Chicago (ORD) to Brussels (BRU) business class award flights

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Adults12 and over
1
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Cheapest right now700,000 milesPlus fees$366.80ProgramAir France-KLM Flying BlueAir France-KLM Flying BlueStandard fareAirlineKLMKLMDepartingThu, Nov 19
Last checked 3h agoChecked

Which program and airline costs you least

Chicago to Brussels in business class starts at 700K miles plus $366.80 — KLM through Air France-KLM Flying Blue. British Airways Club asks fewer points, 54K Avios, but we do not read its cash, so it is not ranked first. British Airways adds taxes and carrier charges at booking: £499 on an off-peak London to New York Club World return since 27 May 2026. AwardWallet, May 2026.

Every way to book ORD to BRU with miles or points
Airline
Aer LingusAer Lingusvia DUBBritish Airways Club54K AviosFees not quoted
IberiaIberiavia MADBritish Airways Club57K AviosFees not quoted
British AirwaysBritish Airwaysvia LHRBritish Airways Club104.5K AviosFees not quoted
United AirlinesUnited Airlinesvia IADlast seen 16 Oct, not re-checked sinceUnited MileagePlus200Kplus $5.90
KLMKLMvia AMSAir France-KLM Flying Blue700Kplus $366.80

ORD to BRU in business class: the facts

Over the next 60 days we hold business class seats from Chicago to Brussels on 27 of the 27 departure days we have checked so far (33 days are not checked yet), through 3 programs. These figures are counted from the seats stored for those dates, not from a price history; the typical day is the median of each day's cheapest seat. Data updated .

  • British Airways Club
    Days with space
    26 of 27 checked
    Lowest
    54,000 Avios
    Typical day
    54,000 Avios
    Cash on top
    Not quoted
  • United MileagePlus
    Days with space
    1 of 27 checked
    Lowest
    200,000 miles
    Typical day
    200,000 miles
    Cash on top
    $6
  • Air France-KLM Flying Blue
    Days with space
    1 of 27 checked
    Lowest
    700,000 miles
    Typical day
    700,000 miles
    Cash on top
    $367

Nonstop or with a connection

Nonstop seats on United Airlines. With a connection on Aer Lingus, British Airways, Iberia and KLM.

How to book it

  1. British Airways Club books on avios.com: sign in there, search ORD to BRU in business class on a date with space, and pay in Avios with the cash on top.
  2. United MileagePlus books on united.com: sign in there, search ORD to BRU in business class on a date with space, and pay in miles with the cash on top (from $6).
  3. Air France-KLM Flying Blue books on airfrance.fr: sign in there, search ORD to BRU in business class on a date with space, and pay in miles with the cash on top (from $367).

MilesZone finds the seat; it does not book it or take payment.

Get told the moment a ORD → BRU seat opens.

We re-check that exact seat seconds before the email leaves, so what you open is still there.

Email only. Searching this route stays free for departures in the next 60 days.