Are there nonstop flights from Madrid (MAD) to Buenos Aires (AEP)?

No. The fastest connection is via Fortaleza, about 12h 51m of total flying time.

What is the fastest connection from Madrid (MAD) to Buenos Aires (AEP)?

via Fortaleza ≈ 12h 51m, via São Paulo ≈ 12h 51m, via Salvador ≈ 12h 51m (estimated flying time, excluding layovers).

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

Adolfo Suárez Madrid–Barajas Airport (MAD) to Aeroparque Jorge Newbery (AEP)・10,057 km

No nonstop flights. The fastest connection is via Fortaleza (FOR), about 12h 51m of flying time (layover not included).

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

None.

13 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.