AirHint found the following cheapest return flights from Lisbon (LIS) to Buenos Aires (EZE) in August 2026 (see full year).
Return flights
| 25 Aug - 07 Sep | LATAM Airlines Group | ||
| 12 Aug - 24 Aug | Iberia | ||
| 16 Aug - 25 Aug | Iberia | ||
| 10 Aug - 31 Aug | Iberia | ||
| 07 Aug - 27 Aug | Turkish Airlines | ||
| 10 Aug - 28 Aug | Iberia | ||
| 03 Aug - 27 Aug | Iberia |
Also check the deals for one-way flights from Lisbon to Buenos Aires in August.
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