Cheapest one-way OPO–AEP flights, September

AirHint found the following cheapest one-way flights from Porto (OPO) to Buenos Aires (AEP) in September 2026 (see full year).

One-Way flights

09 Sep easyJet
16 Sep Iberia
13 Sep Ryanair
15 Sep Ryanair
01 Sep Air Transat
11 Sep LATAM Airlines Group
04 Sep Air Europa
23 Sep LATAM Airlines Group
28 Sep LATAM Airlines Group
17 Sep LATAM Airlines Group

Also check the deals for return flights from Porto to Buenos Aires 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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