United Airlines says it will take delivery of six Boeing 787-8s in the last four months of the year, reverting back to a total that recently had slipped to five deliveries.

The first 787-8 is scheduled for delivery in September, with another following in October and three more in November, says United in a regulatory filing detailing financing plans for 14 Boeing 737-900ERs and four of the six 787s.

A sixth 787 is also scheduled for delivery in December, although United will not place this aircraft into service in 2012.

This latest delivery schedule brings 2012 787 deliveries back to a level expected by United early last year until a delay with aircraft completion forced the airline in October to revise its schedule to five widebodies, with all deliveries made in the second half of this year.

Now, for the first time, United is detailing a monthly schedule for its 2012 fleet deliveries, as well as serial numbers and aircraft valuations. According to United, the base value for the first two 787 deliveries (aircraft N20904 and N26906) are $120.8 million each, while the remaining 787s (N27901, N27903, N45905 and December’s delivery N26902) are valued at $121.2 million each.

United 737-900ERs scheduled for delivery this year are also included in United latest filings, with slots indicated from February to June and another phase starting in September and ending in December.