Multiple major airlines are avoiding flying over Pakistan as relations with neighbor India crater in the wake of a recent tourist massacre, the latest geopolitical flashpoint to disrupt global travel.

Air France and Germany's Lufthansa were among global carriers avoiding Pakistani airspace, airlines said and flight-tracking websites showed on Monday, as tension between nuclear-armed neighbours India and Pakistan remained high after a deadly attack in Kashmir last month.

The April 22 terrorist attack in Kashmir inflamed a long-simmering conflict that could boil over into military confrontation.