The Jetstar Group of airlines has confirmed it will switch from Terminal 1 at Singapore's Changi Airport to Terminal 4 on March 22, 2023. The announcement follows months of talks between the airline group and Changi Airport Group (CAG) after the low-cost carriers initially resisted the move.

The decision impacts passengers on Jetstar Asia Airways (3K, Singapore Changi) and Jetstar Airways (JQ, Melbourne Tullamarine) who will soon find themselves an inter-terminal bus ride away from parent airline Qantas (QF, Sydney Kingsford Smith) and its Oneworld partners which primarily use Terminal 1. When CAG flagged the move several months ago, Jetstar was critical of what they called the "unilateral" decision and said it wouldn't happen until an agreement was nutted out. The Jetstar airlines have used the airport for over 15 years.

Terminal 4 reopened in September after a two-year closure. Airlines currently using the five-year old facility include Cathay Pacific, Korean Air Bamboo Airways, Vietnam Airlines, Cebu Pacific Air, HK Express, Juneyao Airlines, Jeju Air, Thai VietJetAir, and VietJetAir.

In a December 1 media statement following the completion of a "comprehensive joint study," Jetstar executives said the move wouldn't impact connectivity with their partner airlines. "Many of our customers take advantage of Jetstar Asia’s extensive Southeast Asian network from this global hub and so it was important for us to also relocate to Terminal 4," said Jetstar Asia CEO Barathan Pasupathi.

Singapore-based Jetstar Asia is the biggest operator of the various Jetstar brands at the airport. According to the ch-aviation capacities module, Jetstar Asia Airways is presently offering 42,840 seats a week in and out of Singapore while Jetstar Airways offers 3,350 seats a week.