FITS Aviation (Pvt) Limited, DBA FitsAir (formerly known as ExpoAir), is a Sri Lankan airline. It operates scheduled passenger service within Sri Lanka, as well as international cargo flights to several cities in the Middle East, Asia, and Africa.

ExpoAir was the first airline in Sri Lanka to be certified under the International Civil Aviation Organisation ( ICAO) annex requirements, as well as being the first domestic airline to be certified by the Department of Civil Aviation to commence flights to Jaffna.

Expo Aviation was established in 1997, with operations commencing in 1998 using 2 Antonov An-8 aircraft, which were later replaced by An-12s.

In 2001, Expo Aviation started domestic operations to Jaffna using Ilyushin Il-18 and Antonov An-26 aircraft. Soon after this, the airline was renamed ExpoAir.

The next year, in 2002, the airline leased 3 Fokker F27 aircraft from Oman Air. An additional IL-18 started operating in 2003, and ExpoAir launched cabin crew training in 2004.

In 2005, Expo Air applied to the Civil Aviation Authority of Sri Lanka (CAASL) to operate international air cargo services to Malé, Mumbai, Tiruchirapalli, Thiruvananthapuram, Hyderabad, Vizag, Kochi, Bangalore, Chennai, Islamabad, Lahore, Karachi, Kathmandu, Chittagong, Dhaka, Bangkok, Kuala Lumpur, Singapore, Jakarta, Manila, Dubai, Abu Dhabi, Sharjah, Muscat, Jeddah, Beirut, and Cairo, as well as various cities in Australia, Africa, and Europe, with the short-haul routes utilizing the Airbus A320 and long-haul routes utilizing the Airbus A330 and Airbus A340 models. In 2006, ExpoAir added a Douglas DC-8 to its fleet and sold a Fokker 27.

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