You can adopt a Boykin Spaniel at a much lower cost than buying one from a breeder. Adopting a Boykin Spaniel from a shelter or rescue typically costs $50 to $300. This adoption fee often includes a basic exam, preventatives, vaccines, spay/neuter, and microchipping. In contrast, buying Boykin Spaniels from breeders can be prohibitively expensive. Depending on their breeding, they can cost $800 to $1,800.