Update 7/25/20: Earning rate reduced from 3 Avios per $1 spent to 2 Avios per $1 spent. Hat tip to FM
AirBnB has partnered with British Airways Avios and you can now earn 3 Avios per $1 spent on AirBnB bookings. AirBnB also has partnerships with Delta & Qantas but the earning rate is one mile per $1 spent (although in the case of Qantas it’s per $1 AUD spent). It’ll be interesting to see if the Avios earn rate of 3 per $1 spent is permanent or an introductory offer.
Hat tip to OMaaT