Cheapest return flights from Porto Alegre to London in September from $1040

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

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

Return flights

11 Sep - 25 Sep TAP
16 Sep - 26 Sep TAP
09 Sep - 23 Sep TAP
10 Sep - 24 Sep GOL Linhas Aéreas
16 Sep - 30 Sep TAP
07 Sep - 14 Sep British Airways
17 Sep - 26 Sep British Airways
05 Sep - 13 Sep GOL Linhas Aéreas

Also check the deals for one-way 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.

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