Tiger Airways Singapore Pte Ltd, operating as Tigerair, is a budget airline headquartered in Singapore. It operates services to regional destinations in Southeast Asia, China and India from its main base at Singapore Changi Airport. It was founded as an independent airline in 2003, and was listed on the Singapore Stock Exchange under the Tiger Airways Holdings name in 2010. In October 2014, parent company Tiger Airways Holdings became a subsidiary of the SIA Group, who took a 56% ownership stake.

Tigerair won the CAPA Low Cost Airline of the Year Award for 2006 and 2010.

On 16 May 2016, Tigerair joined the world’s largest low cost carrier alliance, Value Alliance.

On 18 May 2016, Singapore Airlines established Budget Aviation Holdings, a holding company to own and manage its budget airlines Scoot and Tiger Airways following the delisting of Tiger Airways from the Singapore Stock Exchange.

Tiger Airways Singapore was incorporated on 12 December 2003 and began ticket sales on 31 August 2004. It has its head office in the Honeywell Building in Changi, Singapore.

Services commenced on 15 September 2004 to Bangkok. Scheduled international services are operated from Singapore Changi Airport. The airline is a subsidiary of Tiger Airways Holdings, a Singapore-based company.

In 2006, the airline flew 1.2 million passengers, a growth of 75% from the previous year.

The airline was the first to operate from the Budget Terminal at Changi Airport as part of its cost-saving operations structure, similar to Ryanair's. Despite regional competition, the airline has reiterated its current intention to remain focused on flying within a five-hour radius from its Singaporean base.

As of 25 September 2012, Tigerair Singapore operates from Singapore Changi Airport Terminal 2 due to the demolition of the Budget Terminal to make way for Terminal 4, due to be completed in 2017.

The airline flew into a period of relative difficulty for the aviation industry with rising oil prices and intense competition from other airlines. The airline held off imposing fuel surcharges as its competitors had done.

With Singapore Airlines (SIA) having a stake in the airline, the airline occasionally fills in the gap when SIA drops its services from certain destinations. Macau, once served by SIA before being taken up by its subsidiary, SilkAir, in 2002, terminated all flights completely by the end of 2004. Three months later, the route was taken over by Tigerair with flights commencing 25 March 2005. A similar pattern can be observed in Krabi, where SilkAir suspended services in February 2005 in the wake of the effects of the 2004 Indian Ocean earthquake. Tigerair resumed direct services to the location from 7 October 2005.

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