Depends on the airline as to how the fare classes are coded. The major differences are in price, minimum stay away nights, flexibility of purchase/payment, days in advance you can purchase, etc, etc. Generally the more you pay the less restrictions are attached to the ticket. Email me privately if you require more info. Grant SYD QF At 09:11 PM 26/01/03 +0000, you wrote: >Anyone knows how airlines code their Economy Class seats? What are the >differences between Economy Y, B, Q, M etc etc etc??? > > >Bob