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

Return flights

18 Jan - 23 Jan	Ryanair
25 Jan - 31 Jan	Ryanair
23 Jan - 30 Jan	Ryanair
18 Jan - 22 Jan	Ryanair
11 Jan - 14 Jan	Ryanair
17 Jan - 24 Jan	Ryanair
17 Jan - 23 Jan	Ryanair
23 Jan - 26 Jan	Ryanair
29 Jan - 03 Feb	Ryanair
30 Jan - 05 Feb	Ryanair
23 Jan - 29 Jan	Ryanair
15 Jan - 19 Jan	Ryanair
27 Jan - 02 Feb	Ryanair
28 Jan - 11 Feb	Vueling Airlines
29 Jan - 20 Feb	Ryanair
16 Jan - 05 Feb	Vueling Airlines
28 Jan - 05 Feb	Vueling Airlines
30 Jan - 11 Feb	Vueling Airlines
20 Jan - 05 Feb	Vueling Airlines
16 Jan - 02 Feb	Vueling Airlines

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

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.

Book a cheap hotel in Athens

Cheap car rent in Athens

Cheapest return flights from Porto to Athens in January from $117

Return flights