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

Return flights

23 Apr - 30 Apr	Azul Airlines
08 Apr - 17 Apr	Azul Airlines
23 Apr - 29 Apr	Azul Airlines
27 Apr - 04 May	Azul Airlines
22 Apr - 29 Apr	LATAM Airlines Group
28 Apr - 05 May	Azul Airlines
26 Apr - 12 May	Azul Airlines
26 Apr - 05 May	GOL Linhas Aéreas
07 Apr - 12 Apr	Azul Airlines
07 Apr - 16 Apr	Azul Airlines
04 Apr - 15 Apr	Azul Airlines
30 Apr - 09 May	GOL Linhas Aéreas
13 Apr - 21 Apr	Azul Airlines
13 Apr - 24 Apr	LATAM Airlines Group
01 Apr - 11 Apr	Azul Airlines

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 $941

Return flights