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

Return flights

29 Jul - 02 Aug	Transavia France
16 Jul - 23 Jul	easyJet
29 Jul - 05 Aug	Transavia France
17 Jul - 21 Jul	Turkish Airlines
28 Jul - 01 Aug	Transavia France
25 Jul - 03 Aug	Ryanair
28 Jul - 05 Aug	easyJet
25 Jul - 02 Aug	easyJet
15 Jul - 20 Jul	Wizz Air
28 Jul - 09 Aug	Transavia France
15 Jul - 22 Jul	Wizz Air
08 Jul - 15 Jul	Wizz Air
11 Jul - 18 Jul	Ryanair
11 Jul - 12 Jul	TAP
11 Jul - 14 Jul	Ryanair
07 Jul - 12 Jul	Transavia France
07 Jul - 11 Jul	Transavia France

Also check the deals for one-way flights from Lisbon to Riga 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 Lisbon to Riga in July from $388

Return flights