Despite the summer heatwave and World Cup stymying demand earlier this year, the operator is understood to have benefited from strong late bookings.
Analysts cited by The Times expect Tui revenue to reach €19.3 billion, up from €18.5 billion last year (December-December).
Pre-tax profits, meanwhile, are expected to come in at €1.04 billion. Tui posted underlying Ebita at constant currency of €1.121 last year (up from €1.001 billion in 2016), falling to €1.102 billion including foreign exchange effects.
In September, Tui said despite the hot summer, it was still projecting profit growth of 10%.
