* Nine new orders in last week; 17 cancellations

* Q2 commercial deliveries 125 vs 126 year-ago

* Boeing shares off 3 pct

(Adds order update)

ATLANTA, July 2 (Reuters) - Boeing Co (BA.N: Quote, Profile, Research) said on Thursday 17 orders for its commercial aircraft were canceled in the last week, including a previously reported cancellation of 15 of its delayed Dreamliner 787.

The company's latest weekly update of orders on its website also showed nine new orders for its commercial aircraft. For the year to date at June 30, Boeing had 85 gross orders and 84 cancellations, for a net total of one plane for 2009.

Boeing also said in a statement on Thursday that it delivered 125 commercial aircraft during the second quarter, bringing total deliveries to 246 for the year to date.

The 2009 second-quarter delivery tally compares with 126 commercial aircraft delivered in the year-earlier second quarter.

Deliveries for commercial airplanes do not "seem to be anything unusual," said Alex Hamilton, an analyst with Jesup & Lamont Securities.