Are there nonstop flights from Buenos Aires (AEP) to La Paz / El Alto (LPB)?

No. The fastest connection is via Santa Cruz, about 3h 56m of total flying time.

What is the fastest connection from Buenos Aires (AEP) to La Paz / El Alto (LPB)?

via Santa Cruz ≈ 3h 56m, via Santiago ≈ 4h 35m, via Lima ≈ 5h 58m (estimated flying time, excluding layovers).

Aeroparque Jorge Newbery (AEP) to El Alto International Airport (LPB)・2,231 km

No nonstop flights. The fastest connection is via Santa Cruz (VVI), about 3h 56m of flying time (layover not included).

None.

3 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.