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

Return flights

23 Sep - 30 Sep	Ryanair
30 Sep - 04 Oct	Ryanair
28 Sep - 30 Sep	Ryanair
23 Sep - 25 Sep	Ryanair
28 Sep - 04 Oct	Ryanair
28 Sep - 03 Oct	Ryanair
28 Sep - 07 Oct	Ryanair
29 Sep - 06 Oct	Ryanair
28 Sep - 01 Oct	Ryanair
24 Sep - 01 Oct	Ryanair
27 Sep - 30 Sep	Ryanair
29 Sep - 04 Oct	Ryanair
16 Sep - 01 Oct	Ryanair
30 Sep - 06 Oct	Ryanair
22 Sep - 25 Sep	Ryanair
22 Sep - 30 Sep	Ryanair
23 Sep - 27 Sep	Ryanair
15 Sep - 17 Sep	Ryanair
09 Sep - 14 Sep	Ryanair
23 Sep - 26 Sep	Ryanair

Also check the deals for one-way flights from Riga to Barcelona 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 Riga to Barcelona in September from $146

Return flights