Good news for travellers! Budget airlines are announcing plans to expand to longer-haul flights in the region, among them: Cebu Air Inc. of the Philippines; two from Singapore – Singapore Airlines with its budget unit, Scoot and Tiger Airways; and the JetStar unit of Australia’s Qantas Airways. They’ve proven the budget business model works with flights up to 3 hours. Now they plan to test that model by adding longer hauls. The question is: can they make enough money to keep the business profitable?