AirHint found the following cheapest return flights from Porto (OPO) to Buenos Aires (EZE) in November 2025 (see full year).

Return flights

24 Nov - 07 Dec	Ethiopian Airlines
20 Nov - 04 Dec	Ethiopian Airlines
20 Nov - 02 Dec	Ethiopian Airlines
27 Nov - 11 Dec	Ethiopian Airlines
20 Nov - 27 Nov	Ethiopian Airlines
25 Nov - 29 Nov	Ethiopian Airlines
27 Nov - 18 Dec	Ethiopian Airlines
27 Nov - 10 Dec	Lufthansa
29 Nov - 20 Dec	Ethiopian Airlines
20 Nov - 03 Dec	Ryanair
29 Nov - 13 Dec	Lufthansa
17 Nov - 30 Nov	Ethiopian Airlines
24 Nov - 01 Dec	Ryanair
11 Nov - 18 Nov	TAP
10 Nov - 18 Nov	TAP
10 Nov - 19 Nov	TAP
16 Nov - 23 Nov	TAP
14 Nov - 21 Nov	TAP
15 Nov - 18 Nov	Air Europa
11 Nov - 22 Nov	TAP

Also check the deals for one-way flights from Porto to Buenos Aires in November.

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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Cheapest return flights from Porto to Buenos Aires in November from $915

Return flights