Complex sentence: The airport has domestic flight routes to Balikpapan, Jakarta, Surabaya, Denpasar and Makassar, as well as an international route to Tawau, Malaysia.
Split into simpler sentences: The airport has a flight route to Balikpapan, Jakarta, Surabaya, Denpasar, and Makassar. And the international route to Tawau, Malaysia.