Cheapest return flights from Riga to Lisbon in September from $282

AirHint found the following cheapest return flights from Riga (RIX) to Lisbon (LIS) in September 2026 (see full year).

Return flights

29 Sep - 12 Oct Ryanair
08 Sep - 17 Sep Lufthansa
05 Sep - 14 Sep airBaltic
11 Sep - 21 Sep Norwegian Air Sweden AOC
13 Sep - 23 Sep Air France
11 Sep - 21 Sep airBaltic direct
05 Sep - 14 Sep TAP direct

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

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