The consolidation of the European airline industry moved closer yesterday when Air France-KLM and Lufthansa Group both submitted binding offers for TAP Portugal. If Air France-KLM is the preferred bidder, it will see TAP leave Star Alliance and move over to the SkyTeam airline alliance. The Star Alliance members which are Marriott Bonvoy transfer partners are: Aegean, Air Canada, Air China, Air New Zealand, ANA, Asiana Airlines, Avianca, Copa Airlines, Singapore Airlines, TAP Air Portugal, Thai Airways, Turkish Airlines and United Airlines. SPECIAL OFFER: Until 15th September, the sign-up bonus on the standard Marriott Bonvoy Debit Card is increased from 5,000 Bonvoy points to 15,000 points. You can get the bonus even if you have the Marriott Bonvoy American Express Card or another Currensea-issued debit card.