Boeing delivered 118 commercial aircraft in the second quarter of the year, up slightly from the same period in 2010.
But year-to-date deliveries of 222 aircraft remain flat compared to the year prior, which included 114 aircraft delivered during the second quarter.
Reflecting the increase in 777 output from five to seven per month, the company delivered 19 of the long-range twin-engine aircraft in the second quarter, compared to 16 during the same period in 2010.
Narrowbody 737 output remained steady year-over-year with 181 deliveries in the first half of 2011, including 94 narrowbody deliveries in the second quarter, compared with 95 the year prior.
Boeing is currently moving monthly 737 production from 31.5 to 35 in early 2012 followed 38 in second quarter 2013, with another advance to 42 in early 2014.
Boeing delivered six 767 aircraft during the quarter, which is up significantly from just three in the second quarter of 2010. At mid-year 2011, Boeing delivered a total of nine 767s. The airframer recently opted to shift 767 production from 1.5 to two aircraft per month.
Boeing's 787 line is moving from two to 10 aircraft per month by the end of 2013, while the 777 build rate is increasing from seven to 8.3 per month by first quarter 2013.