Alicante Airport Bus Links
Helpful member
Rome2Rio.com :for worldwide transport suggestions (great base to start from)
All the below operate both ways,
Costazul.net :Bus links between Alicante and Cartagena (Costa Blanca and Costa Calida )
Beniconnect.com :Alicante airport to Benidorm
Busbam.net : Murcia city to Alicante airport
Movidad.vectalia.com : Alicante/Santa Pola/Elche to airport
Alsa.com : Murcia/Benidorm/Calpe/Benitachell/Benissa/Valencia via Alicante airport