Airbnb iCal-All Listing in One Places
If you list your space on other websites, you can prevent multiple guests from booking the same dates by syncing your Airbnb calendar with your other calendars. You can only sync your calendars up to one year in the future.
Airbnb real time calendar sync
The iCal calendar tool updates only twice daily. The delay in sync, means double bookings may occur if two guests book the same property at the same time. To complety eliminate the risk of double bookings, try a channel manager tool / vacation rental software to update and sync calendars accroos multiple platforms in real time. See more info on recommoneded vacation rental softwares.