Shedding daytime flying capacity in response to the lost postal business is part of a broader FedEx (NYSE: FDX) initiative to boost corporate profits that includes restructuring airline operations to align with lower parcel demand and improve efficiency.

The parcel logistics giant will reduce daytime domestic flying time by 60% and the number of city destinations by 55%, which will add about 500 pilots to the existing surplus, said Justin Brownlee, senior vice president for flight operations and network planning, in a letter to airline workers obtained by FreightWaves. No pilots will be hired for the foreseeable future, he added.

The company now has 5,500 pilots, down from 5,800 at the start of the year. With the workforce redundancy, remaining flight hours will be divided up among the entire cohort, resulting in a "significant" reduction in the minimum number of flight hours guaranteed to pilots starting in October, Brownlee told the flight team.

The Postal Service in early April selected UPS (NYSE: UPS), instead of incumbent FedEx, as its air cargo carrier for the next 5 1/2 years. The last day FedEx will provide service to the Postal Service is Sept. 29, but the company has already been scaling back flights as the agency transitions volumes to UPS. FedEx recently said losing the Postal Service business will drag down operating income by $500 million in the current fiscal year.

Lower postal volumes left FedEx with surplus equipment for its daytime air network and higher operating costs per unit. Management previously said the Postal Service contract wasn't making money. Postal revenue in the fiscal year ending Sept. 30, 2022, fell $236 million to $1.9 billion and was expected to continue decreasing. The contract previously generated annual revenue of at least $2 billion.

Equity research analysts argued that FedEx's airline was much bigger than necessary, partly because of commitments to fly postal shipments during the daytime in addition to its overnight express operation.

FedEx officers earlier this year said expiration of the Postal Service contract gives them more flexibility to reorganize the daytime air network because aircraft won't be dedicated to a single customer.