Cheapest one-way flights from Riga to Lisbon in September from $101

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

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

One-Way flights

17 Sep Ryanair
15 Sep Norwegian Air Sweden AOC
22 Sep Norwegian Air Sweden AOC
21 Sep Norwegian Air Sweden AOC
19 Sep Norwegian Air Sweden AOC
20 Sep Ryanair
14 Sep Norwegian Air Sweden AOC
09 Sep Ryanair
06 Sep Ryanair
08 Sep Ryanair

Also check the deals for return 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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