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

Return flights

18 Sep - 23 Sep	airBaltic	direct
25 Sep - 29 Sep	airBaltic	direct
14 Sep - 18 Sep	airBaltic	direct
19 Sep - 23 Sep	airBaltic	direct
22 Sep - 28 Sep	airBaltic
26 Sep - 30 Sep	airBaltic	direct
18 Sep - 22 Sep	airBaltic	direct
01 Sep - 30 Sep	Ryanair
01 Sep - 10 Sep	Ryanair
01 Sep - 30 Sep	airBaltic	direct
28 Sep - 05 Oct	airBaltic
24 Sep - 03 Oct	airBaltic	direct

Also check the deals for one-way flights from Duesseldorf 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 Duesseldorf to Riga in September from $159

Return flights