The airline operated with a total of 105 aircraft based in the United Kingdom, Denmark and Germany.

[4][5] The United Kingdom's Civil Aviation Authority announced on 23 September 2019 that the group had gone into liquidation.

Thomas Cook Airlines Scandinavia was bought by separate investors and rebranded on 1 November 2019 as Sunclass Airlines,[6] Thomas Cook Airlines Balearics ceased all operations on 26 December 2019,[7] and also Thomas Cook Aviation on 2 April 2020.

The airlines that remained active past the demise continued operations separately from the division.

As of May 2024, the collective fleet of Thomas Cook Group Airlines Limited and its members included the following aircraft:[5]