Cheapest return flights from Porto to Bangkok in May from $686

AirHint found the following cheapest return flights from Porto (OPO) to Bangkok (BKK) in May 2026 (see full year).

Return flights

16 May - 01 Jun SWISS
07 May - 19 May SWISS
16 May - 30 May SWISS
18 May - 29 May SWISS
16 May - 31 May SWISS
13 May - 23 May SWISS
23 May - 10 Jun SWISS
13 May - 22 May Air Europa
07 May - 21 May SWISS
24 May - 08 Jun easyJet
24 May - 07 Jun SWISS
29 May - 08 Jun SWISS
11 May - 17 May Ryanair
24 May - 31 May Ryanair
12 May - 19 May Ryanair
29 May - 14 Jun Aegean Airlines

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

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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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