AirHint found the following cheapest return flights from Porto (OPO) to Vienna (VIE) in December 2025 (see full year).

Return flights

17 Dec - 07 Jan	Ryanair	direct
17 Dec - 06 Jan	Ryanair	direct
23 Dec - 07 Jan	Ryanair	direct
23 Dec - 06 Jan	Ryanair	direct
31 Dec - 06 Jan	Ryanair	direct
31 Dec - 07 Jan	Ryanair	direct
18 Dec - 07 Jan	Ryanair	direct
18 Dec - 06 Jan	Ryanair	direct
21 Dec - 07 Jan	Ryanair	direct
21 Dec - 06 Jan	Ryanair	direct
13 Dec - 17 Dec	Ryanair
13 Dec - 16 Dec	Ryanair
13 Dec - 15 Dec	Ryanair
01 Dec - 04 Dec	Vueling Airlines
03 Dec - 06 Dec	Vueling Airlines
07 Dec - 09 Dec	Vueling Airlines
11 Dec - 13 Dec	Ryanair
09 Dec - 13 Dec	Ryanair
05 Dec - 08 Dec	SWISS
14 Dec - 18 Dec	Ryanair

Also check the deals for one-way flights from Porto to Vienna in December.

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 Vienna in December from $122

Return flights