flights from detroit to germany on delta airlines

many friends ask me does delta airlines have direct flight from detroit to germany,i did some research,and find there are no non stop flight from DTW to germany on delta airlines, instead,you can fly from DTW to new york or ATL,then from NYC to germany.

here are some cheap tickets i find.
new york JFK to Frankfurt, Germany Each-way economy class Fare $519 based on round-trip purchase
One-way Sale coach class Fare
From Atlanta, GA (ATL) to Dusseldorf, Germany, DE (DUS) $359
Frankfurt, Germany, DE (FRA) $359

Take advantage of business class flight deals and the pleasures of BusinessElite® by planning and booking your international business flight to germany.

Atlanta, GA (ATL)to Frankfurt, Germany, DE (FRA)
50-day
Advance
Each-way
business class air fare $1,779
30-day
Advance
Each-way
$2,709