UK budget carrier EasyJet's order for 135 Airbus A320s contributed to 174 additional aircraft logged on the airframer's books in July.
Airbus delivered 347 aircraft over the first seven months of 2013, compared with 326 in the same period last year.
EasyJet's firm deal, which includes 100 A320neo twinjets, increased Airbus's gross order total to 932, with a net figure of 892 after cancellations and changes.
Lessors CIT and ILFC added 20 A321s and three A319s between them during July, while smaller single-aisle orders were taken from Nepal Airlines, Syphax Airlines and a private customer.
In the long-haul sector Airbus secured an A330 option conversion from Turkish Airlines and formally booked SriLankan Airlines' order for four A350-900s.
Airbus recorded cancellation of two A320s as part of the CIT order and removed an A320 and an A321, originally for GB Airways, from its books.
Other changes included conversion of four Aviation Capital Group A320s into three A319s and an A321, while GECAS converted four A320s to A321s. US Airways also converted five A320s and an A319 into six A321s.
Airbus's deliveries have included nine A380s and 63 A330s - including six freighters - plus 275 single-aisle jets.