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

Return flights

02 Jul - 23 Jul	Ryanair	direct
04 Jul - 23 Jul	Ryanair	direct
05 Jul - 23 Jul	Ryanair	direct
04 Jul - 16 Jul	Ryanair
04 Jul - 07 Jul	Ryanair
02 Jul - 08 Jul	Ryanair	direct
02 Jul - 07 Jul	Ryanair
04 Jul - 08 Jul	Ryanair
23 Jul - 29 Jul	Ryanair
02 Jul - 10 Jul	Ryanair	direct
23 Jul - 12 Aug	Ryanair
29 Jul - 03 Aug	Ryanair
31 Jul - 11 Aug	Ryanair
22 Jul - 07 Aug	Ryanair	direct
18 Jul - 05 Aug	Ryanair
23 Jul - 07 Aug	Vueling Airlines
23 Jul - 07 Aug	Ryanair	direct
18 Jul - 07 Aug	Ryanair	direct
23 Jul - 13 Aug	Vueling Airlines
30 Jul - 05 Aug	Ryanair

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

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 July from $146

Return flights