AirHint found the following cheapest return flights from Riga (RIX) to Porto (OPO) in June 2026 (see full year).

Return flights

01 Jun - 11 Jun	Scandinavian Airlines
24 Jun - 01 Jul	Ryanair
03 Jun - 13 Jun	Norwegian Air Sweden AOC
02 Jun - 10 Jun	airBaltic
03 Jun - 06 Jun	Ryanair
17 Jun - 27 Jun	Ryanair
25 Jun - 02 Jul	LOT
13 Jun - 20 Jun	airBaltic	direct
12 Jun - 19 Jun	Scandinavian Airlines
08 Jun - 14 Jun	LOT
20 Jun - 27 Jun	LOT
03 Jun - 06 Jun	airBaltic	direct

Also check the deals for one-way flights from Riga to Porto in June.

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 Riga to Porto in June from $228

Return flights