AirHint found the following cheapest return flights from Porto Alegre (POA) to London (STN) in April 2026 (see full year).

Return flights

26 Apr - 12 May	GOL Linhas Aéreas
12 Apr - 24 Apr	GOL Linhas Aéreas
09 Apr - 18 Apr	Azul Airlines
13 Apr - 24 Apr	LATAM Airlines Group
13 Apr - 21 Apr	GOL Linhas Aéreas
08 Apr - 17 Apr	GOL Linhas Aéreas
17 Apr - 02 May	GOL Linhas Aéreas
09 Apr - 30 Apr	Azul Airlines
18 Apr - 25 Apr	GOL Linhas Aéreas

Also check the deals for one-way flights from Porto Alegre to London in April.

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 Porto Alegre to London in April from 765€

Return flights