Yet one more illustrative example militating for reading the fine print before buying - meaning the detailed fare rules that become available to us before we "pull the trigger". These will detail the change fees, when the fare might actually be refundable (death or illness of passenger or traveling companion, etc.) Change fees will vary on a number of conditions - fare class, itinerary and route, etc. and have varied for my tickets between $0, $150 to $350. (I think the latter may have been on an IRTUSA fare.)