Air Asia Head Office Contact Details. Air Asia Head Office Address: Row No:13, Departure Level 2, Singapore Changi Airport Terminal 1, Singapore. Air Asia Head Office Contact Number: +65-6307-7688. Air Asia Go Official Email ID: N/A. Here we have provided you official contact details of Singapore head office of Air Asia. If you have any query or question you can also contact on these details. Supporting Time. Air Asia Official staff is there 24/7 hours for their customers. Air Asia Go Official Website: www.airasia.com/sg/en/home.page