No, you cannot buy beer by the case. And I've never seen anyone trying to bring on anything other than wine or champagne. You could have your stewardess stock your frig with the beer you like, but that tiny thing will only hold a few bottles. You could request that the beer be replinished daily so you won't have to worry about trying to buy an entire case. Your stewardess will do anything you ask as far as beverages are concerned.