Cheapest one-way flights from Porto Alegre to London in September from $496

Best time to book flights for Porto Alegre (POA) to London (LHR) flights at AirHint

AirHint found the following cheapest one-way flights from Porto Alegre (POA) to London (LHR) in September 2025 (see full year).

One-Way flights

30 Sep LATAM Airlines Group
19 Sep LATAM Airlines Group
09 Sep Azul Airlines
08 Sep Azul Airlines
11 Sep Azul Airlines
10 Sep Azul Airlines
03 Sep Azul Airlines
20 Sep Azul Airlines
13 Sep LATAM Airlines Group

Also check the deals for return flights from Porto Alegre to London in September.

Skyscanner

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 London

Cheap car rent in London