Book Transfer provides private, door-to-door transport services for travelers seeking a convenient way to reach airports, cities, and holiday destinations. Based in Sofia, Bulgaria, the service offers airport transfers and taxi transfers with a local driver, alongside car rental with a driver. Customers can book online and choose from a wide range of routes across Bulgaria and neighboring countries.

Destinations include major airports in Bulgaria, Turkey, Romania, Greece, Serbia, Croatia, Montenegro, Slovenia, North Macedonia, Albania, and Bosnia and Herzegovina. Within Bulgaria, routes also serve ski resorts such as Bansko, Borovets, and Pamporovo, as well as towns including Ruse, Velingrad, Stara Zagora, and Veliko Tarnovo. The company presents its transfers as comfortable, reliable, and stress-free, and highlights flexible sightseeing options for passengers who want to explore more during their journey. Booking is available online, and the service advertises 24/7 availability. Book Transfer aims to make regional travel straightforward, whether customers need an airport pickup, an intercity ride, or a driver for a broader trip.