Tango · Steaks · Long haul. Compare cheap flights to Buenos Aires from US airports — flight time 9h 30m from Miami International.
Compare flights to Buenos Aires →Buenos Aires is a long-haul destination from the US, suited to a tango and steaks trip. The 9h 30m flight from Miami International (MIA) makes it a realistic one- or two-week trip, with onward connections from major hubs (JFK, MIA, LAX, ORD, ATL) opening up additional departure options. Round-trip fares sit in the long-haul-priced bracket on this corridor, with prices from $449 when timing and routing align.
January typically delivers the cheapest fares (around $763 round-trip on average), with prices climbing through August when seasonal demand peaks ($1436+). On the ground, Argentine peso (ARS) is the local currency and Spanish the dominant language — English coverage is solid in tourist quarters and at the airport. Visa: Visa-free for US passport holders up to 90 days. 8-14 weeks ahead is the long-haul sweet spot — earlier doesn't reliably help, later starts to hurt; last-minute bookings on this route can run two to three times the cheapest fare we see.
By Louisa Lowe, Lead Writer · Updated for 2026.
Always confirm visa and entry requirements at travel.state.gov before booking.
From Miami International (MIA), nonstop flights to Buenos Aires take approximately 9h 30m. Total journey time depends on your departure airport, any connections, and seasonal headwinds.
Visa-free for US passport holders up to 90 days. Always check travel.state.gov for the latest entry requirements before booking.
The best months to visit Buenos Aires are Oct–Apr, when conditions are most comfortable for sightseeing and weather is settled.
Argentine peso (ARS) — most major hotels and restaurants in Buenos Aires accept card payments, but cash is useful for smaller establishments and tipping.
Spanish. English is widely understood in tourist areas, hotels, and major restaurants.
