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

Return flights

03 Mar - 10 Mar	Ryanair
03 Mar - 07 Mar	Ryanair
02 Mar - 06 Mar	Ryanair
14 Mar - 17 Mar	Ryanair
03 Mar - 09 Mar	Ryanair
07 Mar - 12 Mar	Ryanair
02 Mar - 05 Mar	Ryanair
05 Mar - 09 Mar	Ryanair
07 Mar - 10 Mar	Ryanair
07 Mar - 11 Mar	Ryanair
26 Mar - 04 Apr	Ryanair
25 Mar - 05 Apr	Ryanair
29 Mar - 04 Apr	airBaltic
28 Mar - 04 Apr	Ryanair
26 Mar - 05 Apr	Ryanair
28 Mar - 03 Apr	Ryanair
27 Mar - 05 Apr	Ryanair
28 Mar - 05 Apr	Ryanair
29 Mar - 05 Apr	Austrian Airlines
27 Mar - 06 Apr	Ryanair

Also check the deals for one-way flights from Riga to Porto 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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest return flights from Riga to Porto in March from 103€

Return flights