Delta has updated their summer timetable with a substantial amount of changes. Primarily seasonal adjustments to the Caribbean and Europe.

Atlanta-Moscow – Service canceled from summer timetable.
Atlanta-Athens – Service canceled from summer timetable.
Atlanta-Copenhagen – Service canceled from summer timetable.
Atlanta-Prague – Service canceled from summer timetable.
Atlanta-Tel Aviv – Service canceled from summer timetable.
Atlanta-Cozumel effective May 5-Aug 8 increases from 7x/week to 8x/week.
Atlanta-Los Cabos effective June-August 2012 reduces service to 5x/week from 7x/week.
Atlanta-Nassau effective June 7 to August 13 increases from 3x/day to 4x/day.
Atlanta-Puerto Vallarta effective June 7 to October 27 increases from 1x/week to 3x/week.
Atlanta-Punta Cana effective June 7-August 13 will increase from 8x/week to 2x/DAILY.
Atlanta-London(LHR) effective immediately and lasting until March 23 has been reduced to daily from 11x/week.
Detroit-London(LHR) effective immediately and lasting until March 23 has been reduced to daily from 10x/week.
Honolulu-Osaka effective July 31 to September 4 increases from 1x/day to 2x/day.
New York(JFK)-Berlin – Service canceled from summer timetable.
New York(JFK)-Budapest – Service canceled from summer timetable.
New York(JFK)-Manchester – Service canceled from summer timetable.
New York(JFK)-Mexico City effective June 7 increases from 1x/day to 2x/day.
New York(JFK)-Rome effective June 18 to July 29 increase from 12x/week to 14x/week.
New York(JFK)-Rome effective July 30 to September 3 is reduced from 12x/week to 10x/week.
Salt Lake City-Tokyo(NRT) – Service is canceled from summer timetable.