Austin airport to close South Terminal March 31; Allegiant and Frontier to relocate

It comes as the city prepares to demolish the South Terminal and build a second concourse as part of a long-term expansion project.

AUSTIN, Texas — The final day of operations at the South Terminal at Austin-Bergstrom International Airport (AUS) will be March 31, the city announced on Tuesday.

Starting April 1, Allegiant and Frontier airlines will operate from the Barbara Jordan Terminal, putting all airlines under one roof.

It comes as the city prepares to demolish the South Terminal in order to build a second concourse as part of a long-term expansion project.

In November 2023, Austin paid a total of $88 million to overtake the South Terminal, allowing AUS to continue its expansion on the new 26-gate Concourse B and connector tunnel. The expansion program was announced in 2021 as a way to address airline and passenger activity growth.

AUS expects the new concourse to be complete by the early 2030s. Six temporary gates will be added to a separate Concourse M, expected to be completed next year, to allow for expansion construction.

There are already improvements being made at the airport, including a 30,000-square-foot concourse expansion, construction on a new Yellow Garage north of the Blue Garage and new midfield taxiways. Last month, the airport celebrated the opening of Checkpoint 4 with up to eight new TSA lanes.