Cheapest one-way flights from Porto to Singapore in May from 366€

Best time to book flights for Porto (OPO) to Singapore (SIN) flights at AirHint

AirHint found the following cheapest one-way flights from Porto (OPO) to Singapore (SIN) in May 2025 (see full year).

One-Way flights

03 May Ryanair
02 May British Airways

Also check the deals for return flights from Porto to Singapore in May.

Skyscanner

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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