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

Return flights

17 Sep - 26 Sep	airBaltic	direct
03 Sep - 04 Sep	airBaltic	direct
12 Sep - 15 Sep	airBaltic	direct
03 Sep - 03 Sep	airBaltic
07 Sep - 08 Sep	airBaltic
08 Sep - 15 Sep	airBaltic	direct
07 Sep - 14 Sep	airBaltic
07 Sep - 07 Sep	airBaltic
06 Sep - 06 Sep	airBaltic
07 Sep - 14 Sep	airBaltic	direct

Also check the deals for one-way flights from Billund 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 Billund to Riga in September from 89€

Return flights