Are there nonstop flights from Nice (NCE) to Buenos Aires (EZE)?

No. The fastest connection is via Barcelona, about 13h 55m of total flying time.

What is the fastest connection from Nice (NCE) to Buenos Aires (EZE)?

via Barcelona ≈ 13h 55m, via Madrid ≈ 14h, via Rome ≈ 14h 39m (estimated flying time, excluding layovers).

from 35,000 ANA miles, from 45,000 JAL miles (economy, one way, based on the published award charts).

Nice-Côte d'Azur Airport (NCE) to Ezeiza International Airport - Ministro Pistarini (EZE)・10,969 km

No nonstop flights. The fastest connection is via Barcelona (BCN), about 13h 55m of flying time (layover not included).

With milesANA 35,000 miles+ (via ZRH)JAL 45,000 miles+ (via MAD)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

12 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.