Air Transat was founded in 1986 by Transat A.T. in Canada. Air Transat’s headquarters are currently located in Montreal and the main base in Montreal-Pierre Elliott Trudeau International Airport. Air Transat is not a star alliance member. The company has won the Skytrax awards World's Best Leisure Airline. Jean-Marc Eustache leads the company as the CEO.

It has declared $ 3,005,345,000 in revenue. Air Transat offers service to 63 destinations in 26 countries and they have carried more than 4.5 million passengers in 2017.

Air Transat’s fleet consists of Airbus A330 model aircrafts. The average age of the fleet is 18.1 years. The youngest aircrafts are the Airbus A321 at 8.8 years old. They rank 62 among 116 airlines operating this type of aircraft. The most common aircraft in the fleet is the Airbus A330 with 20 of them at hand. They rank 113 among 129 airlines operating this type of aircraft.

Air Transat have 1 accident reports to date. The most recent one is in 2001 at Lyon, France with Lockheed L-1011 TriStar aircraft.