Airlines across Europe faced disruptions to their flight schedules following a series of bomb threats, impacting routes and causing delays. Ryanair was identified as one of the most affected airlines, with several of its flights targeted on routes including Warsaw, Rome, and Sofia, according to CNA. In one instance, a Wizz Air flight traveling from Milan/Bergamo to Sofia received a bomb threat on November 3, as stated by Bulgaria's transport ministry in a statement to Reuters, as reported by NDTV.