Before temporary rules were introduced in November and December, the group – which owns Manchester, Stansted and East Midlands airports – reportedly saw a strong recovery.
According to data from November, MAG recorded around 60% of pre-pandemic traffic, with Stansted recovering at the fastest rate overall.
However, figures for December released on Tuesday (18 January) showed overall traffic was down by 54.8% compared to the same month in 2019, as a result of testing requirements put in place in response to the Omicron variant.