Cheapest return flights from Porto to Bangkok in September from $674

Best time to book flights for Porto (OPO) to Bangkok (BKK) flights at AirHint

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

Return flights

04 Sep - 23 Sep SWISS
11 Sep - 23 Sep SWISS
04 Sep - 20 Sep SWISS
09 Sep - 20 Sep SWISS
23 Sep - 04 Oct SWISS
23 Sep - 09 Oct SWISS
09 Sep - 18 Sep SWISS
08 Sep - 30 Sep SWISS
23 Sep - 30 Sep easyJet
28 Sep - 09 Oct SWISS
28 Sep - 10 Oct SWISS
07 Sep - 20 Sep Austrian Airlines
02 Sep - 09 Sep Ryanair
02 Sep - 14 Sep Ryanair

Also check the deals for one-way flights from Porto to Bangkok 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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