AirHint found the following cheapest return flights from Porto Alegre (POA) to London (LGW) in October 2025 (see full year).

Return flights

02 Oct - 14 Oct	Copa
02 Oct - 11 Oct	Copa
20 Oct - 15 Nov	LATAM Airlines Group
03 Oct - 05 Oct	Copa
02 Oct - 13 Oct	LATAM Airlines Group
23 Oct - 27 Oct	TAP
15 Oct - 22 Oct	TAP
16 Oct - 31 Oct	TAP
03 Oct - 13 Oct	LATAM Airlines Group
22 Oct - 03 Nov	Emirates
07 Oct - 11 Oct	Emirates
05 Oct - 17 Oct	Emirates

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

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 October from $1022

Return flights