The present invention relates to macrocyclic pyridotriazine derivatives of formula (I) and the pharmaceutically acceptable salts, solvates or polymorph thereof, and the use of such compounds as a medicament, in particular in the prevention and/or treatment of viral infections caused by viruses belonging to the Orthomyxoviridae family. The present invention furthermore relates to pharmaceutical compositions or combination preparations of the compounds, and to the compositions or preparations for use as a medicament, more preferably for the prevention or treatment of viral infections caused by viruses belonging to the Orthomyxoviridae family.