Cheapest return flights from Riga to Porto in May from $200

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

Return flights

30 May - 17 Jun Norwegian Air Sweden AOC
29 May - 13 Jun Norwegian Air Sweden AOC
06 May - 20 May Norwegian Air Sweden AOC
20 May - 26 May Ryanair
01 May - 06 May airBaltic
02 May - 06 May Norwegian Air Sweden AOC
30 May - 13 Jun Norwegian Air Sweden AOC
02 May - 13 May Norwegian Air Sweden AOC
20 May - 10 Jun Ryanair
01 May - 05 May Norwegian Air Sweden AOC
01 May - 02 May Norwegian Air Sweden AOC
30 May - 05 Jun LOT
20 May - 10 Jun airBaltic direct
01 May - 03 May Norwegian Air Sweden AOC
01 May - 04 May Norwegian Air Sweden AOC
07 May - 10 May Ryanair
23 May - 13 Jun Norwegian Air Sweden AOC
30 May - 13 Jun airBaltic direct
23 May - 13 Jun airBaltic direct
30 May - 17 Jun airBaltic direct

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

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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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