Delta Air Lines has cancelled 126 existing options for Boeing 737-800 aircraft in return for options on 30 737-900ERs, as part of the narrowbody order it announced earlier this month.
The SkyTeam carrier unveiled a firm order for 100 737-900ERs on 25 August, with deliveries starting in 2013 and continuing through 2018.
"In exchange for the cancellation of existing 737-800 options and rolling options, the agreement includes new options to purchase an additional 30 737-900ER aircraft," said Delta in a regulatory filing.
The airline had 60 options and 66 rolling options for the -800 as of 30 June. All of them were cancelled in exchange for the new options, Delta has confirmed.
Rolling options, unlike options, are assigned delivery slots only when options expire or are exercised.
Taking into account the order and changes in options, Delta now has total aircraft purchase commitments of $6.8 billion, it said.