Chennai Airport's New International Terminal, T3, Is Now Delayed to December 2026

Chennai International Airport's long-awaited new terminal, T3, has slipped again. The building, part of a roughly Rs 2,467 crore Phase II modernisation project by the Airports Authority of India (AAI), was originally targeted for July 2025 but is now expected to open in December 2026, according to recent reporting on the project's construction status.

What T3 is meant to change

T3 is designed to combine domestic and international operations into a single integrated terminal, lifting the airport's overall passenger capacity to around 35 million a year, well above current levels. AAI officials have indicated the terminal structure itself may be substantially complete by around November 2026, with a further month or so needed to fit it out for passenger operations, which is where the December 2026 target comes from.

A project that has slipped more than once

The terminal's timeline has moved several times already, from an original July 2025 target through a subsequently announced mid-2026 date, and reporting on the project has attributed the latest delay to material transportation challenges and structural safety audits. As of the most recent public updates, overall construction progress on the terminal was reported at under a third complete, worth bearing in mind given how often the date has already shifted.

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What it means for travellers now

Until T3 opens, Chennai continues to operate out of its existing terminal infrastructure, which has been running close to capacity for some time. Travellers connecting through Chennai on international itineraries shouldn't expect any near-term change to processing times or gate infrastructure.

Given how many times this timeline has already moved, readers connecting through Chennai should confirm the terminal's status and any operational changes with official Airports Authority of India or Chennai International Airport sources closer to their travel date, rather than relying on any single reported date.

Traveller tips

• T3's opening has slipped from an original July 2025 target to a currently reported December 2026 date; treat this as provisional.
• No changes to current terminal operations are expected before T3 opens.
• Check the Airports Authority of India's official channels or Chennai International Airport's own site for the latest construction updates before planning around this date.
• Passengers on international connections through Chennai should continue to follow existing check-in and transfer guidance until an official terminal changeover is announced.