Kuala Lampur, May 1 -- DHAKA, May 1 - Bangladesh yesterday signed a deal with US aircraft manufacturer Boeing to buy 14 planes for its national carrier Biman Bangladesh Airlines, the two sides announced-the airline's biggest-ever order, in a deal valued at $3.7 billion.

Dhaka's state-run BSS news agency called it the "biggest modern fleet expansion" for the national airline, under an agreement hammered out last year as part of a tariff deal with the United States.

The deal calls for the delivery over the next decade of eight 787-10 Dreamliners, two 787-9 Dreamliners and four single-aisle 737-8 MAX jets, the company's "largest-ever order", the two sides said in a joint statement.

The 787-10s will be used to serve destinations in the Mid...