Are there nonstop flights from Cusco (CUZ) to Buenos Aires (EZE)?

No. The fastest connection is via Santiago, about 4h 56m of total flying time.

What is the fastest connection from Cusco (CUZ) to Buenos Aires (EZE)?

via Santiago ≈ 4h 56m, via Lima ≈ 5h 24m (estimated flying time, excluding layovers).

Alejandro Velasco Astete International Airport (CUZ) to Ezeiza International Airport - Ministro Pistarini (EZE)・2,723 km

No nonstop flights. The fastest connection is via Santiago (SCL), about 4h 56m of flying time (layover not included).

None.

2 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.