Cheapest return MAD–ASU flights, September

AirHint found the following cheapest return flights from Madrid (MAD) to Asuncion (ASU) in September 2026 (see full year).

Return flights

08 Sep - 15 Oct Lufthansa
05 Sep - 31 Oct LATAM Airlines Group
12 Sep - 24 Oct Avianca
01 Sep - 30 Sep Plus Ultra Lineas Aereas
11 Sep - 25 Sep LATAM Airlines Group
18 Sep - 19 Oct LATAM Airlines Group
15 Sep - 19 Oct LATAM Airlines Group
07 Sep - 30 Sep LATAM Airlines Group
22 Sep - 18 Oct Avianca
17 Sep - 18 Oct Avianca
17 Sep - 16 Oct Avianca
22 Sep - 31 Oct Avianca
15 Sep - 15 Oct Avianca
14 Sep - 23 Sep LATAM Airlines Group
14 Sep - 24 Sep LATAM Airlines Group
01 Sep - 22 Sep LATAM Airlines Group
07 Sep - 30 Sep Air Europa direct
12 Sep - 26 Sep Avianca
10 Sep - 25 Sep Air Europa direct
13 Sep - 21 Sep Air Europa direct

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

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