Cheapest return flights from Porto to Singapore in September from 600€

AirHint found the following cheapest return flights from Porto (OPO) to Singapore (SIN) in September 2025 (see full year).

Return flights

25 Sep - 07 Oct SWISS
11 Sep - 24 Sep SWISS
18 Sep - 01 Oct SWISS
16 Sep - 01 Oct Lufthansa
20 Sep - 08 Oct Air France
11 Sep - 20 Sep SWISS
30 Sep - 09 Oct Ryanair
30 Sep - 03 Oct Ryanair
28 Sep - 03 Oct Ryanair
28 Sep - 07 Oct Ryanair
29 Sep - 09 Oct SWISS
29 Sep - 03 Oct Wizz Air Malta
07 Sep - 15 Sep Ryanair
09 Sep - 25 Sep Lufthansa
05 Sep - 10 Sep KLM

Also check the deals for one-way flights from Porto to Singapore in September.

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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