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

Return flights

13 Sep - 17 Sep	Ryanair
26 Sep - 30 Sep	Ryanair
10 Sep - 18 Sep	Ryanair
06 Sep - 10 Sep	Ryanair
15 Sep - 22 Sep	Ryanair
27 Sep - 04 Oct	Ryanair
27 Sep - 03 Oct	Ryanair
13 Sep - 18 Sep	Ryanair
26 Sep - 01 Oct	Ryanair
19 Sep - 21 Sep	Ryanair
20 Sep - 22 Sep	Ryanair
20 Sep - 04 Oct	Ryanair
27 Sep - 28 Sep	Ryanair
27 Sep - 29 Sep	airBaltic	direct
27 Sep - 04 Oct	airBaltic	direct
28 Sep - 05 Oct	airBaltic	direct
27 Sep - 03 Oct	airBaltic	direct
30 Sep - 03 Oct	airBaltic	direct
30 Sep - 07 Oct	airBaltic	direct
24 Sep - 01 Oct	airBaltic	direct

Also check the deals for one-way flights from Amsterdam 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 Amsterdam to Riga in September from $170

Return flights