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

Return flights

01 Sep - 03 Sep	Norwegian Air Sweden AOC
01 Sep - 04 Sep	Norwegian Air Sweden AOC
16 Sep - 19 Sep	Norwegian Air Sweden AOC
22 Sep - 28 Sep	Norwegian Air Sweden AOC
15 Sep - 18 Sep	Norwegian Air Sweden AOC
01 Sep - 04 Sep	airBaltic	direct
22 Sep - 28 Sep	airBaltic	direct
18 Sep - 22 Sep	airBaltic	direct
04 Sep - 08 Sep	airBaltic	direct
04 Sep - 07 Sep	Ryanair

Also check the deals for one-way flights from Riga to Budapest 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 Budapest in September from $137

Return flights