Iberia Plus members can book reward flights on American and Finnair on-line: Members of the Iberia Plus frequent flyer programme can now book reward flights on American Airlines and Finnair on-line. They could already use their points to book travel on British Airways, LAN and Qantas on-line. oneworld is working towards having all member airlines offer this capability, enabling their frequent flyers to book on-line flights on any oneworld carrier.