British Airways Chicago Office Headquarters Among the many essential services that British Airways Chicago Office provides to its clients are booking, reservations, and customer support. Situated in the heart of Chicago, this office is dedicated to assisting passengers with booking flights, planning itineraries, and addressing any queries or issues that may arise. In order to ensure that every passenger has a seamless travel experience, the British Airways Chicago Office is committed to providing assistance with luggage services and last-minute flight modifications.