Tui Travel has taken a swipe at Thomas Cook, accusing its rival of resting on its laurels, after reporting a bumper end to summer season in one of its largest source markets.
The tour operator posted its pre-close trading update last week, revealing a strong performance in both the UK and Germany.
In the UK, Tui Travel said 98% of its programme had been sold for summer 2014. This compared favourably with Germany - where 97% was sold, but its overall mainstream bookings for the latter were up 9%, with higher margins.