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

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

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

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

Ezeiza International Airport - Ministro Pistarini (EZE) to Alejandro Velasco Astete International Airport (CUZ)・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.