Cheapest return flights from Lisbon to Riga in August from $297

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

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

Return flights

31 Aug - 03 Sep Ryanair
02 Aug - 08 Aug Finnair
16 Aug - 25 Aug Finnair
20 Aug - 25 Aug Ryanair
09 Aug - 14 Aug Finnair
23 Aug - 30 Aug Ryanair
20 Aug - 29 Aug Ryanair
11 Aug - 16 Aug Finnair
01 Aug - 12 Aug Air France
22 Aug - 01 Sep Ryanair
01 Aug - 15 Aug TAP direct
02 Aug - 08 Aug airBaltic direct

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

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.

Book a cheap hotel in Riga

Cheap car rent in Riga