Are there nonstop flights from San Salvador (SAL) to Buenos Aires (EZE)?

No. The fastest connection is via Guayaquil, about 8h 22m of total flying time.

What is the fastest connection from San Salvador (SAL) to Buenos Aires (EZE)?

via Guayaquil ≈ 8h 22m, via Lima ≈ 8h 23m, via Quito ≈ 8h 24m (estimated flying time, excluding layovers).

from 17,500 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

El Salvador International Airport Saint Óscar Arnulfo Romero y Galdámez (SAL) to Ezeiza International Airport - Ministro Pistarini (EZE)・6,259 km

No nonstop flights. The fastest connection is via Guayaquil (GYE), about 8h 22m of flying time (layover not included).

With milesANA 17,500 miles+ (via PTY)JAL 37,000 miles+ (via MIA)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

15 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.