Both Murcia & Almeria are very small airports & as far as I am aware there are no "airport" hotels.
If you check out www.Booking.com you can put, Almeria Airport & then the hotels that are close by are listed & the distance from the airport is indicated.
You can do the same for Murcia but use "San Javier" as that is where the airport actually is.
In my opinion, particularly from Almeria, I wouldn't bother with a hotel even if it is a late flight as the journey to Vera only takes 45 minutes.