Are there nonstop flights from Boston (BOS) to Buenos Aires (EZE)?

No. The fastest connection is via Punta Cana, about 11h 13m of total flying time.

What is the fastest connection from Boston (BOS) to Buenos Aires (EZE)?

via Punta Cana ≈ 11h 13m, via Santo Domingo ≈ 11h 14m, via Oranjestad ≈ 11h 15m (estimated flying time, excluding layovers).

from 30,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Boston Logan International Airport (BOS) to Ezeiza International Airport - Ministro Pistarini (EZE)・8,676 km

No nonstop flights. The fastest connection is via Punta Cana (PUJ), about 11h 13m of flying time (layover not included).

With milesANA 30,000 miles+ (via BOG)JAL 37,000 miles+ (via MIA)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

22 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.