Cheapest return flights from Santarem to Buenos Aires in April from $499

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

Return flights

09 Apr - 18 Apr Azul Airlines
16 Apr - 23 Apr Azul Airlines

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

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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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