# Southeast Asian airport infrastructure expansion > Developing situation record from CLSTR: https://clstr.news/situations/southeast-asian-airport-infrastructure-expansion > Updated: 2026-11-10T03:58:11.000Z. Sources: 14. Developments: 2. Aviation authorities in Thailand and Vietnam have unveiled long term development plans for major airports to increase passenger and cargo capacities. In Thailand, Airports of Thailand (AOT) announced a fifth development plan for Suvarnabhumi Airport. The strategy aims to double annual passenger capacity from 60 million to 120 million within seven years through the construction of a new South Terminal, a fourth runway, and an East Expansion project. Upgrades will also include redesigned duty free areas and improved arrival services. In Vietnam, the Civil Aviation Authority of Vietnam (CAAV) submitted a master plan for Phu Bai International Airport in Hue. The phased expansion targets a capacity of 4 million passengers and 5,000 tons of cargo annually by 2030. By 2050, the plan envisions increasing capacity to 12 million passengers and 24,000 tons of cargo, supported by expanded aircraft parking and infrastructure meeting international standards. ## Timeline ### 2026-11-10: Phu Bai International Airport targets 12 million passengers by 2050 Phu Bai International Airport in Hue, Vietnam, aims to expand its capacity to 4 million passengers by 2030 and 12 million by 2050, according to a new master plan submitted to the Ministry of Construction. 2 sources. https://clstr.news/cluster/phu-bai-international-airport-targets-12-million-passengers-by-2050 ### 2026-11-03: Suvarnabhumi Airport to double capacity to 120 million passengers Suvarnabhumi Airport plans to double its annual capacity to 120 million passengers within seven years through a new terminal and a fourth runway, according to Airports of Thailand. 12 sources. https://clstr.news/cluster/suvarnabhumi-airport-to-double-capacity-to-120-million-passengers --- Cite as: Southeast Asian airport infrastructure expansion. CLSTR, https://clstr.news/situations/southeast-asian-airport-infrastructure-expansion