The world's largest aircraft leasing firms, like Air Lease , Avolon and AerCap , which acquired GE 's airplane leasing business last year, are reaping the benefits.
A tight supply of aircraft is driving up the price airlines pay to rent planes, just as travel demand returns.
This year's surge in oil prices make newer, fuel-efficient planes more attractive than older ones, and higher interest rates could also drive up lease rates.
"That will push lease rates higher through the rest of the year."
Cronin said lease rates for Boeing Maxes and Airbus A320neos have risen by 10%-15% so far this year.