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

Return flights

09 Mar - 21 Mar	Vueling Airlines
20 Mar - 21 Mar	Vueling Airlines
20 Mar - 23 Mar	Vueling Airlines
09 Mar - 23 Mar	Vueling Airlines
15 Mar - 21 Mar	Vueling Airlines
09 Mar - 12 Mar	Vueling Airlines
04 Mar - 25 Apr	SWISS
26 Mar - 04 Apr	Austrian Airlines
25 Mar - 27 Mar	Vueling Airlines
09 Mar - 20 Mar	Vueling Airlines
09 Mar - 27 Mar	Vueling Airlines
15 Mar - 23 Mar	Vueling Airlines

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 $194

Return flights