FITS Aviation (Pvt) Limited, DBA FitsAir (formerly known as ExpoAir), is a Sri Lankan airline.

FitsAir is a subsidiary of Aberdeen Holdings (Pvt) Ltd, a diversified conglomerate headquartered in Sri Lanka.

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 November 2020, the airline leased a former Thomas Cook Airbus A321 modified to carry cargo to operate nonstop flights to Dubai.

On 5 October 2022, Fitsair ceremonially started its very-first scheduled, commercial passenger flights, launching Colombo (CMB) to Dubai (DXB).

In 2008, it wet-leased a Beech Super King Air 200 from South Africa and sub-leased the aircraft to the UN arm of WFP for operations in Sri Lanka.