AirHint found the following cheapest return flights from Porto (OPO) to Athens (ATH) in March 2026 (see full year).

Return flights

13 Mar - 16 Mar	Vueling Airlines
05 Mar - 23 Mar	Vueling Airlines
05 Mar - 16 Mar	Vueling Airlines
13 Mar - 23 Mar	Vueling Airlines
21 Mar - 23 Mar	Vueling Airlines
05 Mar - 18 Mar	Vueling Airlines
13 Mar - 18 Mar	Vueling Airlines
05 Mar - 20 Mar	Vueling Airlines
13 Mar - 20 Mar	Vueling Airlines
22 Mar - 23 Mar	Vueling Airlines
28 Mar - 04 Apr	SWISS

Also check the deals for one-way flights from Porto to Athens in March.

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 Athens in March from 174€

Return flights