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

Return flights

03 Mar - 21 Mar	Ryanair
02 Mar - 07 Mar	Ryanair
19 Mar - 24 Mar	Ryanair
03 Mar - 12 Mar	Ryanair
17 Mar - 24 Mar	Ryanair
11 Mar - 14 Mar	Ryanair
21 Mar - 24 Mar	Ryanair
05 Mar - 12 Mar	Ryanair
14 Mar - 17 Mar	Ryanair
11 Mar - 15 Mar	Ryanair
30 Mar - 04 Apr	Scandinavian Airlines
26 Mar - 04 Apr	Ryanair
30 Mar - 09 Apr	Ryanair
30 Mar - 03 Apr	Scandinavian Airlines
29 Mar - 03 Apr	Scandinavian Airlines
30 Mar - 03 Apr	airBaltic	direct
30 Mar - 04 Apr	TAP	direct

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

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 March from 104€

Return flights