Cheapest return flights from Madrid to Asuncion in September from $1052

AirHint found the following cheapest return flights from Madrid (MAD) to Asuncion (ASU) in September 2025 (see full year).

Return flights

19 Sep - 19 Oct LATAM Airlines Group
25 Sep - 24 Oct Plus Ultra Lineas Aereas
22 Sep - 22 Oct Air Europa direct
19 Sep - 19 Oct Air Europa direct
20 Sep - 05 Oct LATAM Airlines Group
20 Sep - 11 Oct LATAM Airlines Group
24 Sep - 16 Oct Plus Ultra Lineas Aereas
25 Sep - 02 Oct LATAM Airlines Group
24 Sep - 01 Oct Plus Ultra Lineas Aereas
20 Sep - 04 Oct LATAM Airlines Group
19 Sep - 28 Sep LATAM Airlines Group
22 Sep - 28 Sep Azul Airlines
23 Sep - 30 Sep TAP
26 Sep - 28 Sep Azul Airlines
19 Sep - 26 Sep LATAM Airlines Group
25 Sep - 29 Sep Plus Ultra Lineas Aereas
20 Sep - 27 Sep LATAM Airlines Group
22 Sep - 29 Sep Azul Airlines
21 Sep - 28 Sep Air Europa
25 Sep - 30 Sep Plus Ultra Lineas Aereas

Also check the deals for one-way flights from Madrid to Asuncion in September.

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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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