Overall passenger demand slumped 65.9% compared to 2019, which Iata characterised as "by far the sharpest traffic decline in aviation history".
International passenger demand fell more than three-quarters (75.6%), while domestic demand was nearly halved, down 48.8% on 2019.
Iata has 2021 may yet prove even tougher, at least at first, with much of the world under strict Covid lockdown – in many cases stricter than at any point last year.
This has impacted forward air travel bookings significantly, with bookings for future travel made in January down 70% on levels from a year ago.