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

Return flights

06 Sep - 16 Sep	Ryanair
19 Sep - 22 Sep	Ryanair
26 Sep - 30 Sep	Norwegian Air Sweden AOC
06 Sep - 08 Sep	Ryanair
06 Sep - 13 Sep	Ryanair
06 Sep - 15 Sep	Ryanair
20 Sep - 30 Sep	Ryanair
03 Sep - 13 Sep	Ryanair
15 Sep - 28 Sep	Ryanair
13 Sep - 28 Sep	Ryanair
21 Sep - 01 Oct	airBaltic	direct
22 Sep - 02 Oct	airBaltic	direct
23 Sep - 03 Oct	airBaltic	direct
24 Sep - 04 Oct	airBaltic	direct
25 Sep - 05 Oct	airBaltic	direct
26 Sep - 06 Oct	airBaltic	direct
27 Sep - 07 Oct	airBaltic	direct
28 Sep - 08 Oct	airBaltic	direct
29 Sep - 09 Oct	airBaltic	direct
30 Sep - 10 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 145€

Return flights