September 19, 2019
Harvard defines lowest economy class airfare (sometimes called coach, standard economy fare class or base airfare) to include a reserved seat, one personal item, one carry-on bag, and one checked bag.
Where there is a high likelihood that the itinerary may change; it is appropriate to purchase a refundable (unrestricted) ticket. Include in the business purpose section of the reimbursement request the reason for purchasing a refundable ticket.
Additional travel information and policies can be found at Travel and Reimbursement Services or Financial Policy Office.