AirHint found the following cheapest return flights from Porto (OPO) to Vienna (VIE) in April 2026 (see full year).

Return flights

24 Apr - 28 Apr	Iberia
07 Apr - 14 Apr	Iberia
08 Apr - 12 Apr	Iberia
09 Apr - 13 Apr	Iberia
23 Apr - 27 Apr	Iberia
30 Apr - 04 May	easyJet
30 Apr - 03 May	SWISS
02 Apr - 05 Apr	SWISS
03 Apr - 05 Apr	SWISS
06 Apr - 09 Apr	Iberia
09 Apr - 12 Apr	Vueling Airlines
06 Apr - 10 Apr	Iberia

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

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 April from $209

Return flights