How much you pay for your ticket is generally the only difference. Y is usually full economy with no restrictions, when you get to Q, V, M, etc they tend to have an advance purchase requirement, have a minimum stay and are non-refundable Mark -----Original Message----- From: The Airline List [mailto:AIRLINE@LISTSERV.CUNY.EDU] On Behalf Of Lee Tze Yen, Bob Sent: Sunday, January 26, 2003 1:12 PM To: AIRLINE@LISTSERV.CUNY.EDU Subject: REQ: Ticketing codes Anyone knows how airlines code their Economy Class seats? What are the differences between Economy Y, B, Q, M etc etc etc??? Bob