Ia rhymes with:
alethea, alislamiyya, aliyah, althea, alyea, amalea, anamaria, asea, badeah, belyea, bengoechea, berea, bramalea, bria, caesarea, cananea, chia, ciaccia, cleah, corea, crimea, cytherea, dhia, dia, diarrhea, diarrhoea, diego-garcia, dorothea, dulcinea, duryea, eritrea, freia, gaea, galatea, galeria, galleria, garcia, geagea, gensia, gonorrhea, hialeah, hosea, hydea, idea, ikea, jia, judea, kania, keziah, killilea, korea, leah, lia, machinea, maria, medea, mia, minea, minebea, moriya, nekia, nicosia, onomatopeia, orea, panacea, papaleo, perea, pia, pizzeria, rakiya, rhea, ria, rosalia, rotea, samaria, santa-maria, shia, shiah, snia, sofia, sophia, subia, thea, tia, timothea, tortilla, urea, urrea, valea, yehiya, zia
Ia sounds like:
i, i., iie, io, iou, iowa, iwai, iwo