Are there nonstop flights from Las Vegas (LAS) to Buenos Aires (EZE)?

No. The fastest connection is via Mexico City, about 12h 33m of total flying time.

What is the fastest connection from Las Vegas (LAS) to Buenos Aires (EZE)?

via Mexico City ≈ 12h 33m, via Panama City ≈ 12h 49m, via Cancún ≈ 12h 54m (estimated flying time, excluding layovers).

from 30,000 ANA miles, from 45,000 JAL miles (economy, one way, based on the published award charts).

Harry Reid International Airport (LAS) to Ezeiza International Airport - Ministro Pistarini (EZE)・9,824 km

No nonstop flights. The fastest connection is via Mexico City (MEX), about 12h 33m of flying time (layover not included).

With milesANA 30,000 miles+ (via PTY)JAL 45,000 miles+ (via DFW)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.