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

Return flights

10 Apr - 18 Apr	Ryanair
01 Apr - 13 Apr	Ryanair
01 Apr - 12 Apr	Ryanair
02 Apr - 14 Apr	Air Serbia
02 Apr - 13 Apr	Air Serbia
02 Apr - 12 Apr	Air Serbia
03 Apr - 10 Apr	Norwegian
02 Apr - 15 Apr	Air Europa

Also check the deals for one-way flights from Porto to Sydney 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 Sydney in April from 966€

Return flights