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

Return flights

06 Mar - 16 Mar	easyJet
06 Mar - 18 Mar	easyJet
09 Mar - 23 Mar	Ryanair
14 Mar - 23 Mar	Ryanair
06 Mar - 17 Mar	easyJet
05 Mar - 16 Mar	Ryanair
05 Mar - 18 Mar	Ryanair
06 Mar - 21 Mar	easyJet
07 Mar - 21 Mar	Ryanair
06 Mar - 19 Mar	easyJet
22 Mar - 02 Apr	KLM
20 Mar - 01 Apr	easyJet
20 Mar - 03 Apr	easyJet
21 Mar - 01 Apr	easyJet
19 Mar - 03 Apr	Ryanair
19 Mar - 04 Apr	Ryanair
22 Mar - 01 Apr	KLM
28 Mar - 13 Apr	Ryanair
22 Mar - 03 Apr	KLM
27 Mar - 14 Apr	Ryanair

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

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 Bangkok in March from 538€

Return flights