Cheapest one-way flights from Riga to Porto in September from 82€

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

One-Way flights

28 Sep Ryanair
22 Sep Norwegian Air Sweden AOC
27 Sep Norwegian Air Sweden AOC
30 Sep Ryanair
17 Sep Ryanair
19 Sep Ryanair
21 Sep Ryanair
16 Sep Norwegian Air Sweden AOC
25 Sep Ryanair
24 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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