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

One-Way flights

01 Sep	Aegean Airlines	direct
09 Sep	Ryanair
08 Sep	Ryanair
08 Sep	Aegean Airlines	direct
15 Sep	Aegean Airlines	direct
23 Sep	SKY express
10 Sep	Volotea
22 Sep	Pegasus Airlines
22 Sep	Aegean Airlines	direct
16 Sep	SKY express

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

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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Cheapest one-way flights from Athens to Riga in September from $90

One-Way flights