The efficacy of different stable fly attractants was evaluated at four dairy cattle farms in Muak Lek district, Saraburi province, Thailand. Dry ice, octenol, a mixture of cow dung and urine, a combination of dry ice plus octenol, and no attractants (control) were tested with Vavoua traps. In total, 7,000 individuals of Stomoxys species were collected between July 2013 to September 2014, of which 1,058, 867, 1,274, and 3,801 were trapped on farms 1–4, respectively. Four species of Stomoxys were identified: Stomoxys bengalensis Picard, 1908, Stomoxys calcitrans (L., 1758), Stomoxys indicus Picard, 1908, and Stomoxys sitiens Rondani, 1873. S. calcitrans was the predominant species, comprising 99% of all the samples collected. The number of male and female S. calcitrans collected differed significantly by attractant type. Significantly more S. calcitrans were attracted to dry ice or a combination of dry ice plus octenol-baited traps than to unbaited or octenol-baited traps. The Vavoua traps baited with dry ice alone or a combination of dry ice plus octenol were effective attractants for S. calcitrans.