The union has written to chancellor Rishi Sunak demanding a moratorium on tens of thousands of proposed job losses in aviation.
It has also urged the government to redouble its efforts to map out an exit from the coronavirus crisis "that meets the needs of the UK economy".
Prime minister Boris Johnson last week said the government would this week reveal the next steps in its coronavirus "roadmap" and how it would jump start various parts of the economy, including the travel and tourism sector.