Franco-Dutch airline Air France-KLM said the November 13 attacks in Paris had an impact of around €70m on revenue in December but that booking trends indicated a "progressive recovery". 

The airline had said last month that the shootings by Islamic militants in which 130 people were killed had a €50m hit in November. 

Overall group passenger traffic rose 1.1% last month, driven by long-haul services and its low-cost Transavia unit, Air France-KLM said in a statement. 

Group cargo traffic fell 7.8%, it added.