AirHint found the following cheapest return flights from Miami (MIA) to Buenos Aires (AEP) in March 2026 (see full year).

Return flights

06 Mar - 19 Mar	Sky Airline
06 Mar - 13 Mar	Sky Airline
06 Mar - 15 Mar	Sky Airline
06 Mar - 20 Mar	Sky Airline
06 Mar - 16 Mar	Sky Airline
19 Mar - 29 Mar	Sky Airline
24 Mar - 30 Mar	Sky Airline
15 Mar - 29 Mar	Sky Airline
27 Mar - 03 Apr	Sky Airline
28 Mar - 04 Apr	Sky Airline
23 Mar - 30 Mar	Sky Airline
16 Mar - 26 Mar	Sky Airline
30 Mar - 11 Apr	Sky Airline
25 Mar - 01 Apr	Sky Airline
04 Mar - 02 Apr	Sky Airline
21 Mar - 04 Apr	Sky Airline
17 Mar - 19 Apr	Sky Airline
31 Mar - 01 Apr	LATAM Airlines Group

Also check the deals for one-way flights from Miami to Buenos Aires in March.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Miami to Buenos Aires in March from $451

Return flights