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

Return flights

04 Sep - 11 Sep	Lufthansa
04 Sep - 01 Oct	Lufthansa
01 Sep - 19 Oct	Ryanair
05 Sep - 12 Sep	Lufthansa
04 Sep - 08 Sep	Lufthansa
10 Sep - 13 Sep	Ryanair
08 Sep - 14 Sep	Ryanair
05 Sep - 14 Sep	Ryanair
04 Sep - 14 Sep	Lufthansa

Also check the deals for one-way flights from Luxemburg 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.

Book a cheap hotel in Riga

Cheap car rent in Riga

Cheapest return flights from Luxemburg to Riga in September from 159€

Return flights