Cheapest one-way flights from Porto to Riga in September from 76€

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

One-Way flights

10 Sep Norwegian Air Sweden AOC
19 Sep Ryanair
06 Sep Norwegian Air Sweden AOC
04 Sep Ryanair
03 Sep Ryanair
11 Sep Ryanair
16 Sep Ryanair
13 Sep Norwegian Air Sweden AOC
24 Sep Ryanair
26 Sep Ryanair

Also check the deals for return flights from Porto to Riga 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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