The Pacific Island Flight Alternatives Act of 2025 seeks to alleviate high flight costs and limited air competition in the Pacific region, particularly for travel involving Guam and the Northern Mariana Islands. It proposes to amend federal law to allow specific foreign air carriers to make intermediate stops in these U.S. territories. Specifically, the bill permits "authorized Pacific aircraft" from Japan, the Philippines, or the Republic of Korea to pick up or drop off passengers and cargo in Guam or the Northern Mariana Islands. These stops would not be considered a break in the international journey of flights traveling between a U.S. location and a foreign destination. This measure aims to leverage the established role of these allied nations' carriers in supplementing air services within the Indo-Pacific region.