It looks like the the reduction in DAL flying is actually 10-12%. From Bloomberg today.


Bigger Cut


Delta CEO Richard Anderson acknowledged on April 26 that there was “significant industry overcapacity” on trans-Atlantic routes, and the Atlanta-based carrier said May 6 it would pare seating in the market by 8 to 10 percent following the Labor Day holiday in September. Delta President Ed Bastia said today at a transportation conference that the figure is now 10-12 percent.






Source:



http://www.businessweek.com/news/2011-05-19/air-france-clashes-with-u-s-ally-delta-over-capacity-cuts.html