In a recent turn of events, Pakistan has refused to grant request for PM's flight to enter its airspace. This request is according to the protocol as this is not a commercial jet. Due to this the longer route that PM Modi's journey to the US will increase the travel time by 40-50 mins. PM's visit to Frankfurt is because of the event 'Howdy Modi' where the US President Donald Trump will also join him.
Pakistan has earlier refused the airspace permission for President Ram Nath Kovind's visit to Europe.