Members of 17 airline frequent flyer programmes can earn double miles when staying at a Preferred Hotel Group property before the end of the year.
The worldwide promotion is available for new bookings at participating properties made before, and for stays until, December 31.
It is valid for minimum two-night stays booked on rate code "MKTDBL".
The offer is open to members of the following airlines' loyalty programmes — British Airways, Virgin Atlantic, Malaysia Airlines, ANA, Jet Airways, Singapore Airlines, United Airlines, American Airlines, Qantas, Alaska Airlines, Etihad Airways, Air France/KLM, Asia Miles, Japan Airlines, Korean Air, GOL Brazil and Air China.
Guests must provide their airline loyalty membership card at check-in. Blackout dates may apply and the offer is subject to availability.
It is also possible to retroactively claim miles for qualifying stays up to six months after the departure date from a participating hotel.
For a list of Preferred hotels that are not participating in the promotion, click here.