Runway The airport has a single long runway 09/27 (Northeast–Southwest orientation) equipped with CAT-I
Instrument Landing System for
IFR. The old runway 15/33 was closed as part of early development, and is used as an alternate taxiway to the main apron. The re-carpeting work on the active runway 09/27 was completed during February 2020 to July 2021 at a cost of . In 2025, the
Airports Authority of India (AAI) proposed to extend the primary runway to at a cost of .
Apron and taxiways There were four taxiways designated from A to D, which connected to the main apron with seven parking stands. The ministry of civil aviation initiated the plan to expand the apron to provide two more aircraft bays, increasing the bay count to nine. The AAI has expanded the existing apron with the construction of a third
aerobridge and ramp equipment area, measuring at an estimated cost of , which became active in January 2019. In December 2023, a new apron of area was added with ten additional parking stands (10 to 20), three parallel taxiways (E1 to E3) and four new taxiways (F to J).
Passenger terminal The airport has three adjacent terminals. The original passenger terminal was replaced by a new terminal in 2009, which was later replaced by a new integrated passenger terminal in 2024. The two-story terminal has a floor area of with a handling capacity of 490,000 passengers per annum, and peak hour capacity of 470 passengers. It was equipped with 12 check-in counters, four customs counters, 16 immigration counters, three conveyor belts, five scanners, and four security check units. Due to the increase in air traffic, it was planned to expand the existing terminal by on both sides, by constructing an additional area, which would increase the passenger handling capacity to 1,075 peak-hour passengers. The construction started after the foundation stone was laid on 10 February 2019, with the project expected to completed on October 2021. The terminal is situated on the southern side, and a four-lane elevated access road was built from the
NH-336 passing besides the original terminal. The terminal was designed by a French company,
Egis Group, in partnership with the British architectural firm,
Pascall+Watson. The construction contract was awarded to ITD Cementation in August 2018. It was completed at a cost of and was inaugurated on 2 January 2024. The building has an area of , with capacity to handle 4.5 million passengers annually and 3,480 passengers during peak hour. It began operations from 11 June 2024. The terminal's design is inspired by the monuments of Tiruchirapalli, Tamil festivals and art forms. A replica of the south
gopuram (ornate tower at the entrance of
Hindu temples) of the
Ranganathaswamy temple, is placed along the main entrance. The roof of the terminal has been designed with elements from
Dravidian architecture. The terminal consists of 11 boarding gates with five aerobridges, 26 domestic and 34 international check-in counters, 60 immigration counters, 44 emigration counters, five baggage carousels, three lounges, 19 baggage scanning systems, and an associated parking splace for 1250 cars and 10 buses with electric charging bays.
Cargo terminal After the construction of a new passenger terminal in 2009, the old terminal was converted into a cargo complex at a cost of . The cargo complex is spread over an area of with the export wing occupying and demarcated for imports. It started operations on 21 November 2011 after the
Central Board of Excise and Customs approved and notified the airport as an air cargo complex. The cargo terminal has a holding capacity of 250 metric tonnes, and serves as an export hub for the central region of Tamil Nadu. On 11 October 2013, a cold storage facility, with a capacity of five-metric tons, was inaugurated at the airport. On 21 April 2017, an additional dedicated import cargo facility was established on a area at a cost of .
Air traffic control The Air Traffic Control (ATC) is located alongside the old terminal building. The tall ATC tower was planned to be constructed at a cost of , with work beginning in July 2023.
Other facilities Air Works operates a line maintenance facility to conduct transit checks on
Airbus A320 aircraft operated by
Scoot.
Air India Express maintains an engineering stores and maintenance facility for service and repairs of its aircraft. The
Madras Flying Club was established in 1929, and operated from the Chennai airport. In 2018, it announced plans to shift operations to Tiruchirapalli due to congestion and operational difficulties at Chennai. It began operations at the airport on 10 January 2020, with six training aircraft. The
Government of Tamil Nadu allocated of its land adjacent to the airport for the club to set up its operational infrastructure. == Airlines and destinations ==