American Airlines Group announced on Wednesday that it has agreed to buy an additional 23 737 MAX 8 planes from Boeing by exercising existing purchase options and postponing the delivery of some 787-9 Dreamliner planes.

Despite the interruption created by the Omicron version of the coronavirus, the airline's decision to expand its 737 MAX fleet comes at a time when domestic travel in the United States is on the mend.American Airlines Agrees 737 MAX And 787 Delivery Delays With Boeing -  Simple Flying

In a filing, American Airlines stated that it plans to convert seven more of its MAX purchase options this year, increasing the total number of 737 MAX 8 planes ordered to 30.

Boeing's long-haul 787-9 Dreamliner aircraft, which was supposed to be delivered in January of next year, has been postponed.

Deliveries will now begin in the fourth quarter of 2023 and continue through 2027, with four 787-9 aircraft scheduled for delivery in 2023, according to American Airlines.

Boeing said it has incurred $4.5 billion in charges in the fourth quarter on its 787 program, which is plagued by production issues and has previously paid penalties to American Airlines for delaying deliveries.

A request for comment from a major Newswire was not immediately returned.