Cheapest return flights from Riga to Lisbon in September from $197

Best time to book flights for Riga (RIX) to Lisbon (LIS) flights at AirHint

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

Return flights

17 Sep - 22 Sep Ryanair
29 Sep - 03 Oct Ryanair
19 Sep - 22 Sep Norwegian Air Sweden AOC
15 Sep - 20 Sep Norwegian Air Sweden AOC
17 Sep - 21 Sep Ryanair
15 Sep - 19 Sep Norwegian Air Sweden AOC
23 Sep - 30 Sep Ryanair
08 Sep - 13 Sep Ryanair
04 Sep - 08 Oct Ryanair
14 Sep - 18 Sep Norwegian Air Sweden AOC
14 Sep - 21 Sep Norwegian Air Sweden AOC
13 Sep - 22 Sep Ryanair
06 Sep - 10 Oct Ryanair
29 Sep - 13 Oct Norwegian Air Sweden AOC
29 Sep - 03 Oct TAP direct
29 Sep - 13 Oct TAP direct

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