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Northwest Airlines wants to postpone the planned March debut of its Seattle-Beijing route by a year, industry publication Aviation Week reports. The Delta helping requested the deferral in a filing with the U.S. Department of Transportation, which approved the passage.

The airline also plans to delay by the agency of three months the launch of its Detroit-Shanghai service, initially scheduled to begin in March, and to discover with four weekly flights rather than seven.

Northwest attributed the delays to a 30 percent year-over-year deterioration in send March bookings for U.S.-China travel, Aviation Week said. Airlines including American, US Airways, Continental and Delta have already received Transportation Department approval because reducing services from U.S. cities to Beijing, Guangzhou and Shanghai.

Last month Northwest said it will drop its daily nonstop flight between Seattle and London on Jan. 8.

Original text: http://seattletimes.nwsource.com/html/businesstechnology/2008570417_webnwa29.html?syndication=rss