Are there nonstop flights from Buenos Aires (EZE) to Stuttgart (STR)?

No. The fastest connection is via Zurich, about 14h 29m of total flying time.

What is the fastest connection from Buenos Aires (EZE) to Stuttgart (STR)?

via Zurich ≈ 14h 29m, via Barcelona ≈ 14h 30m, via Frankfurt am Main ≈ 14h 43m (estimated flying time, excluding layovers).

from 35,000 ANA miles (economy, one way, based on the published award charts).

Ezeiza International Airport - Ministro Pistarini (EZE) to Stuttgart Airport (STR)・11,446 km

No nonstop flights. The fastest connection is via Zurich (ZRH), about 14h 29m of flying time (layover not included).

With milesANA 35,000 miles+ (via ZRH)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

8 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.