The North America region is home to the most Boeing 757 aircraft operators. Aviation Week's 2019 Fleet & MRO Forecast data says of the 669 aircraft in-service this year, approximately 443 are operated by North American carriers. The largest is Atlanta-based Delta Air Lines, which has 112 of the aircraft in its fleet.

Inevitably, the high volume of 757s in North America also means the region will generate the most MRO demand. Of the anticipated $12.8 billion demand generated over a 10-year period, $8 billion will emanate from North America.

Engine maintenance will account for the largest MRO demand from 2019 to 2028. 47% of the $12.8 billion spend will center on engines, amounting to just over $6 billion. Following this is line maintenance, which will generate around $3.3 billion in aftermarket spend.

Given the maturity of an aircraft program which saw production end in 2004, 757 volumes are inevitably declining. MRO growth rate is expected to shrink by 13% year-on-year from 2019 to 2028, while the global fleet size will also decline 11.3% over the same period.

By 2028, just 228 757s are expected to be in service. Given the aircraft's versatility, many operators will be hoping a Boeing NMA successor will fill the gap left by the 757 and the 767 aircraft.