New Delhi, April 22 -- Germany's flag carrier Lufthansa Group has announced a calibrated optimisation of its summer flight schedule across its six major hubs, citing a volatile operating environment marked by surging fuel costs and geopolitical uncertainty, according to an official press release.

The airline said capacity will be marginally reduced, by less than one percent in available seat kilometres, through the cancellation of unprofitable routes, particularly at its Frankfurt and Munich hubs, while selectively expanding services in Zurich, Vienna and Brussels as part of a network rebalancing strategy.

The move comes against the backdrop of a sharp escalation in crude oil prices triggered by the ongoing West Asia crisis, which has s...