Cheapest return flights from Lisbon to Riga in September from $201

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

Return flights

04 Sep - 09 Sep Norwegian Air Sweden AOC
18 Sep - 22 Sep Ryanair
20 Sep - 27 Sep Ryanair
13 Sep - 23 Sep Ryanair
11 Sep - 17 Sep Vueling Airlines
13 Sep - 19 Sep Vueling Airlines
07 Sep - 17 Sep TAP
08 Sep - 15 Sep TAP
01 Sep - 06 Sep Vueling Airlines
05 Sep - 15 Sep Ryanair

Also check the deals for one-way flights from Lisbon to Riga in September.

Skyscanner

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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