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

Return flights

09 Jul - 16 Jul	Ryanair
18 Jul - 04 Aug	Norwegian Air Sweden AOC
16 Jul - 24 Jul	Ryanair
01 Jul - 05 Jul	Ryanair
06 Jul - 13 Jul	Ryanair
01 Jul - 22 Jul	Ryanair
18 Jul - 23 Jul	Turkish Airlines
17 Jul - 24 Jul	Turkish Airlines
06 Jul - 11 Jul	Ryanair
08 Jul - 15 Jul	Turkish Airlines
01 Jul - 08 Jul	Ryanair
31 Jul - 04 Aug	Ryanair
04 Jul - 02 Aug	Turkish Airlines
12 Jul - 30 Aug	Ryanair
07 Jul - 05 Aug	Ryanair
25 Jul - 01 Aug	Finnair
31 Jul - 03 Aug	airBaltic
18 Jul - 02 Aug	Finnair
26 Jul - 01 Aug	Finnair
28 Jul - 02 Aug	Ryanair

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

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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Cheapest return flights from Riga to Lisbon in July from $291

Return flights