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

Return flights

08 Mar - 21 Mar	Ryanair
11 Mar - 22 Mar	easyJet
04 Mar - 17 Mar	easyJet
03 Mar - 15 Mar	Ryanair
04 Mar - 19 Mar	easyJet
11 Mar - 29 Mar	easyJet
11 Mar - 24 Mar	easyJet
18 Mar - 29 Mar	easyJet
16 Mar - 24 Mar	Ryanair
18 Mar - 28 Mar	easyJet
16 Mar - 01 Apr	Ryanair
13 Mar - 03 Apr	easyJet
28 Mar - 03 Apr	Ryanair
27 Mar - 16 Apr	Ryanair
03 Mar - 02 Apr	Ryanair
28 Mar - 18 Apr	Ryanair
28 Mar - 12 Apr	Ryanair
21 Mar - 12 Apr	Ryanair
24 Mar - 12 Apr	easyJet
24 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 $606

Return flights