Join Date: May 2006
Location: New York, London, Sydney
Programs: United GS/2MM, DL*P, VS*G, AA*EXP, Avis CHM, Hertz Platinum, Sixt*D, HH*D, HGP*P, Starwood*P
Posts: 9,877
Best way to check is to go to the page where it lists flight details. Click on the button that says rules/detailed rules/detailed penalties, something like that. At the top it will list the fare basis code. As a *general* statement, the first letter of the fare basis code reflects the class that it books into.