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
05 Mar - 17 Mar	Ryanair
05 Mar - 12 Mar	Ryanair
02 Mar - 15 Mar	Ryanair
12 Mar - 22 Mar	Ryanair
03 Mar - 22 Mar	easyJet
04 Mar - 17 Mar	easyJet
10 Mar - 17 Mar	Ryanair
06 Mar - 17 Mar	easyJet
03 Mar - 18 Mar	easyJet
31 Mar - 28 Apr	Ryanair
29 Mar - 28 Apr	Ryanair
24 Mar - 03 Apr	Ryanair
25 Mar - 15 Apr	easyJet
26 Mar - 06 Apr	easyJet
28 Mar - 13 Apr	Ryanair
26 Mar - 12 Apr	easyJet
31 Mar - 08 Apr	Ryanair
30 Mar - 09 Apr	easyJet
20 Mar - 09 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 521€

Return flights