Cheapest return flights from Riga to Porto in September from 237€

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

Return flights

10 Sep - 15 Sep Ryanair
09 Sep - 16 Sep airBaltic
16 Sep - 26 Sep airBaltic
12 Sep - 16 Sep Norwegian Air Sweden AOC
11 Sep - 15 Sep Norwegian Air Sweden AOC
05 Sep - 19 Sep Norwegian Air Sweden AOC
29 Sep - 04 Oct Ryanair
05 Sep - 12 Sep Norwegian Air Sweden AOC
17 Sep - 27 Sep Ryanair
16 Sep - 26 Sep airBaltic direct
09 Sep - 16 Sep airBaltic direct

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

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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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