AirHint found the following cheapest return flights from Paris (CDG) to Riga (RIX) in September 2025 (see full year).

Return flights

24 Sep - 29 Sep	LOT
23 Sep - 30 Sep	LOT
28 Sep - 14 Oct	LOT
25 Sep - 29 Sep	easyJet
30 Sep - 11 Oct	LOT
24 Sep - 01 Oct	LOT
26 Sep - 29 Sep	LOT
26 Sep - 08 Oct	LOT
26 Sep - 30 Sep	LOT
25 Sep - 28 Sep	easyJet
29 Sep - 05 Oct	easyJet
20 Sep - 22 Sep	LOT
24 Sep - 28 Sep	Norwegian
25 Sep - 27 Sep	LOT
23 Sep - 27 Sep	LOT
24 Sep - 01 Oct	airBaltic	direct
30 Sep - 11 Oct	airBaltic	direct
28 Sep - 14 Oct	airBaltic	direct

Also check the deals for one-way flights from Paris 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 return flights from Paris to Riga in September from $251

Return flights