NEW DELHI, Nov. 3 -- Air India is considering shifting more of its European and North American operations to Mumbai as Pakistan's continued closure of its airspace raises the cost of westbound flights, forcing the airline to rethink its international network.

The Tata Group-owned airline plans to expand services to Southeast and East Asia, including Japan, China and Hong Kong, through Delhi, while retaining some European and North American flights from the capital. It is also exploring Bengaluru as a third hub alongside Delhi and Mumbai.

The restructuring is aimed at improving connectivity, containing costs and regaining international market share. The airline is also considering adding to its existing wide-body aircraft orders to suppo...