Are there nonstop flights from Arusha (JRO) to Buenos Aires (EZE)?

No. The fastest connection is via Addis Ababa, about 15h 52m of total flying time.

What is the fastest connection from Arusha (JRO) to Buenos Aires (EZE)?

via Addis Ababa ≈ 15h 52m, via Istanbul ≈ 21h 22m, via Dubai ≈ 21h 30m (estimated flying time, excluding layovers).

from 34,000 ANA miles, from 50,000 JAL miles (economy, one way, based on the published award charts).

Kilimanjaro International Airport (JRO) to Ezeiza International Airport - Ministro Pistarini (EZE)・10,300 km

No nonstop flights. The fastest connection is via Addis Ababa (ADD), about 15h 52m of flying time (layover not included).

With milesANA 34,000 miles+ (via ADD)JAL 50,000 miles+ (via CDG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

6 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.