Air Asia will add a fourth daily service from Perth to Bali on July 1 with fares on the route from $159 one-way until April 28.
The fare is for travel from July 1 - April 30.
The additional service will be operated by a new Airbus A320 and will leave Perth at 10.35am before arriving in Bali at 2.20pm.
The return flight will leave Bali at 6.20am and arrive in Perth at 10am.
The airline will add thrice-weekly flights from Bali to Kota Kinabalu in Sabah from July 27 with $42 one-way fares on sale until April 28, 2013 for travel until April 30, 2014.
From July 1, Air Asia will fly from Darwin to Bali four times a week. airasia.com.