Cheapest one-way flights from Riga to Porto in September from 73€

AirHint found the following cheapest one-way flights from Riga (RIX) to Porto (OPO) in September 2025 (see full year).

One-Way flights

26 Sep Norwegian Air Sweden AOC
09 Sep Norwegian Air Sweden AOC
29 Sep Ryanair
20 Sep Ryanair
22 Sep Ryanair
28 Sep Norwegian Air Sweden AOC
21 Sep Norwegian Air Sweden AOC
05 Sep Norwegian Air Sweden AOC
18 Sep Ryanair
06 Sep Ryanair

Also check the deals for return flights from Riga to Porto in September.

Skyscanner

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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