![A Lufthansa jet takes off from Frankfurt. Many flights were empty and undertaken only to maintain airport access. Reuters](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/7NLNYI2SL3EN7NXUYVR64VJIIA.jpg?smart=true&auth=c2acc1b109f3016d319e44caea78dad606f66e1932aa69c582605d096a74ba9d&width=400&height=225)
A Lufthansa jet takes off from Frankfurt. Many flights were empty and undertaken only to maintain airport access. Reuters
A Lufthansa jet takes off from Frankfurt. Many flights were empty and undertaken only to maintain airport access. Reuters
Ghost flights: empty planes cross Europe to keep airport slots
EU urged to change rules that led to Lufthansa and Brussels Airlines running ghost flights