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

Return flights

02 Mar - 15 Mar	LATAM Airlines Group
03 Mar - 17 Mar	LATAM Airlines Group
10 Mar - 18 Mar	LATAM Airlines Group
03 Mar - 12 Mar	LATAM Airlines Group
03 Mar - 17 Mar	TAP	direct
03 Mar - 12 Mar	TAP	direct
10 Mar - 21 Mar	TAP	direct
14 Mar - 21 Mar	TAP	direct
03 Mar - 24 Mar	TAP	direct
12 Mar - 24 Mar	Azul Airlines

Also check the deals for one-way flights from Porto Alegre to Lisbon 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 Lisbon

Cheap car rent in Lisbon

Cheapest return flights from Porto Alegre to Lisbon in March from $760

Return flights