ɪn nˈaɪntiːnhˈʌndɹɪd nˈaɪnti sˈɛvən, ðə dʒəpˈæn ˌɪntɚnˈæʃənəl koʊˈɑːpɚɹˈeɪʃən ˈeɪdʒənsi dʒˈiːkə kəndˈʌktᵻd ɐ stˈʌdi wˌɪtʃ ˈɪndᵻkˌeɪɾᵻd ðə nˈiːd fɔːɹ ɛkspˈænʃən ʌv dˈænjəl zˈiː. ɹˌɑːmjuːˈældɛz ˈɛɹpoːɹt, ɐlˈɔŋ wɪð lˈɛɡæzpi ˈɛɹpoːɹt, bˈeɪkəlˌɑːd sˈɪɾi dəmˈɛstɪk ˈɛɹpoːɹt, ænd mˌændɚɹˈɪaʊ ˈɛɹpoːɹt ɪn aɪlˈɔɪloʊ sˈɪɾi.
In 1997, the Japan International Cooperation Agency (JICA) conducted a study which indicated the need for expansion of Daniel Z. Romualdez Airport, along with Legazpi Airport, Bacolod City Domestic Airport, and Mandurriao Airport in Iloilo City.