Cebu Air, Inc., operating as Cebu Pacific, is a Philippine low-cost airline based in Pasay, Metro Manila. Founded in 1988, the airline was the first low-cost carrier in Asia and is also the largest airline in the Philippines by fleet size. It offers scheduled flights to both domestic and international destinations. The airline operates flights from five bases in Cebu, Clark, Davao, Iloilo, and its largest base in Manila. With its low-cost business model and extensive destination network, Cebu Pacific became the Philippines' largest airline based on number of passengers flown on domestic and international routes in 2010, overtaking rival Philippine Airlines. According to Civil Aeronautics Board data, Cebu Pacific flew a total of 2.45 million passengers in the first quarter of 2010, nearly 110,000 more than PAL, which carried 2.34 million systemwide during the same period. The airline has often been criticized for its frequent flight delays and cancellations, some without explanation, as well as alleged poor customer service, prompting investigations by the Philippine government. Wikipedia