AirAsia has just launched a 20% off sale with some great direct return fares to Bali before they pull the pin on this route in September. You can even get 10% pricebeat with Jetstar. 20% off is valid for all routes for travel 18th July to 24th Nov 2016. Discount not available during peak period 9th Sept to 19th Sept, and 24th Sept to 11th Oct.
Here's a couple of screenshots. Enjoy :)