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

Return flights

14 Mar - 24 Mar	Ryanair
14 Mar - 21 Mar	Ryanair
13 Mar - 21 Mar	easyJet
13 Mar - 28 Mar	easyJet
14 Mar - 29 Mar	Ryanair
10 Mar - 17 Mar	Vueling Airlines
03 Mar - 24 Mar	Ryanair
04 Mar - 17 Mar	Ryanair
12 Mar - 24 Mar	Ryanair
10 Mar - 21 Mar	Vueling Airlines
14 Mar - 03 Apr	Ryanair
28 Mar - 11 Apr	Ryanair
29 Mar - 11 Apr	Ryanair
29 Mar - 12 Apr	Ryanair
31 Mar - 13 Apr	Ryanair
17 Mar - 01 Apr	Ryanair
28 Mar - 08 Apr	Ryanair
20 Mar - 02 Apr	easyJet
21 Mar - 04 Apr	easyJet
18 Mar - 08 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 550€

Return flights