Delta Air Lines has ordered 10 more Airbus A321s, continuing its long-term shift to larger-gauge narrowbodies.

The order brings the US carrier's total commitments for the A321 to 122, including the 91 it already had on order and 21 in service, Flight Fleets Analyzer shows.

Greg May, Delta's senior vice-president of supply chain management and fleet, credits the A321 with "excellent operating economics and customer capacity", adding that these "make it a great fit for our US domestic network".

Today's order is worth roughly $1.16 billion at list prices, based on Airbus' 2017 price list.

The A321 is a key part of Delta's shift to larger-gauge domestic aircraft. The Atlanta-based airline's chief executive Ed Bastian outlined these plans in May, noting how the Airbus narrowbody was replacing Boeing MD-88s in its fleet.

Delta plans to retire its 116 MD-88s with 149 seats by 2020, replacing them with the 192-seat A321 and 180-seat Boeing 737-900ERs.

The fleet-upgauging plans also include replacing 50-seat regional jets with larger models, and large regional jets with 110-seat Bombardier CS100s.

Source: Cirium Dashboard