Austin Airport Permanently Shuts Down Busy Budget Terminal

Allegiant and Frontier flights will move to the main Barbara Jordan Terminal starting April 1.

Published on Mar. 4, 2026

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Austin-Bergstrom International Airport in Texas is permanently closing its South Terminal on March 31, forcing budget airlines Allegiant and Frontier to move their operations to the main Barbara Jordan Terminal starting April 1. The closure is part of the airport's broader expansion plans, including the New Midfield Taxiways Project and a future Concourse B with at least 26 gates.

Why it matters

The closure of the South Terminal will disrupt travel plans for passengers flying with Allegiant and Frontier, as they will need to adjust their check-in and security procedures. The move is part of the airport's broader efforts to improve aircraft movement and prepare for future growth, but it could lead to temporary travel headaches for budget-conscious flyers.

The details

The South Terminal at Austin-Bergstrom International Airport will permanently close on March 31, 2026. Allegiant and Frontier airlines, which currently operate out of the South Terminal, will move their flights to the main Barbara Jordan Terminal starting April 1. The closure is part of the airport's New Midfield Taxiways Project, which is intended to improve aircraft movement and connectivity as the airport expands. The airport's broader "Journey With AUS" expansion plan also includes a future Concourse B, expected in the early 2030s, which will have at least 26 gates.

  • The South Terminal will permanently close on March 31, 2026.
  • Allegiant and Frontier flights will move to the main Barbara Jordan Terminal on April 1, 2026.

The players

Austin-Bergstrom International Airport

The international airport serving Austin, Texas, which is undergoing a major expansion and renovation project.

Allegiant

A low-cost American airline that currently operates out of the South Terminal at Austin-Bergstrom International Airport.

Frontier

A low-cost American airline that currently operates out of the South Terminal at Austin-Bergstrom International Airport.

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What’s next

The airport's $1.031 billion "Journey With AUS" expansion plan, including the construction of Concourse B with at least 26 gates, is expected to continue in the coming years.

The takeaway

The closure of Austin-Bergstrom's South Terminal is a significant disruption for budget-conscious travelers, but it is a necessary step in the airport's broader efforts to improve infrastructure and prepare for future growth. Passengers flying with Allegiant and Frontier will need to adjust their travel plans accordingly.