Cheapest return flights from Los Angeles to Buenos Aires in April from $737

AirHint found the following cheapest return flights from Los Angeles (LAX) to Buenos Aires (AEP) in April 2026 (see full year).

Return flights

07 Apr - 15 Apr Spirit Airlines
26 Apr - 14 May Frontier Airlines
07 Apr - 23 Apr Spirit Airlines
16 Apr - 27 Apr Frontier Airlines
09 Apr - 22 Apr Spirit Airlines
27 Apr - 26 May Frontier Airlines
17 Apr - 24 Apr Frontier Airlines
01 Apr - 13 Apr Frontier Airlines
02 Apr - 13 Apr Frontier Airlines
28 Apr - 10 May Frontier Airlines
10 Apr - 20 Apr Spirit Airlines
18 Apr - 25 Apr LATAM Airlines Group
06 Apr - 23 Apr Frontier Airlines
23 Apr - 06 May LATAM Airlines Group
24 Apr - 09 May Frontier Airlines

Also check the deals for one-way flights from Los Angeles to Buenos Aires in April.

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