have question about putting avion pts over to avios ,long story short , have 15000 avion , got from credit card , not going to keep card , so if i transfer pts over avios that would keep the pts alive for longer if i did not use them , its only getting me a short haul flight for the 15000 , would i be better off to switch , use them at a later time , say with aa , prob wouldnt us british airways.