AOT Plans THB80bn Airports Expansion in Thailand

Airports of Thailand (AOT) has unveiled a five-year investment plan worth approximately THB80 billion to expand airport capacity across the country, aiming to boost passenger handling and strengthen Thailand’s international competitiveness. Key projects include the East Expansion at Suvarnabhumi Airport (THB12 billion), Phase 3 development of Don Mueang Airport, and Phase 2 of Phuket Airport. The company confirmed it will fund the programme using its own cash reserves, with no borrowing required during the first five years.

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The announcement follows a policy briefing by Transport Minister Phiphat Ratchakitprakarn, who emphasised the government’s focus on tackling urgent infrastructure needs while building long-term economic strength. The plan prioritises accelerating ongoing construction, speeding up tender processes for approved projects, and fast-tracking Cabinet approvals for major developments. These include the Suvarnabhumi Airport Development Master Plan (2025 edition) and feasibility studies for new Andaman and Lanna airports.

AOT President Paweena Jariyathitipong said most projects have completed feasibility studies and are under review by the Office of the National Economic and Social Development Council. The East Expansion project, already submitted to the Secretariat of the Cabinet, is expected to go to tender within four months of approval, with construction potentially starting late this year and completion targeted for 2030.

The Don Mueang Airport Phase 3 project carries a total budget of THB69 billion, with THB30 billion allocated for the first five years to develop infrastructure and Passenger Terminal 3. It is currently awaiting consideration by relevant planning agencies and is expected to be submitted to the Cabinet within the year, with construction slated to begin early next year. Meanwhile, Phuket Airport Phase 2, costing around THB10 billion, aims to increase annual passenger capacity from 12.5 million to 18 million.

The investment programme is expected to improve operational efficiency, accommodate rising passenger demand, and enhance Thailand’s position as a regional aviation centre. It also includes procurement of technology to detect and counter unmanned aircraft, as well as plans to introduce additional service operators at Suvarnabhumi Airport to improve ground handling and cargo services.

The Nation reported that AOT said it is financially prepared to proceed, with funds already allocated from accumulated cash reserves averaging about THB10 billion. The next steps depend on Cabinet approvals and tender processes, with several projects expected to move into construction phases within the next year.

Picture courtesy of The Nation

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Adapted by ASEAN Now Nation 7 May 2026

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