Cheapest return flights from Sao Paulo to Keflavik in September from $1101

Best time to book flights for Sao Paulo (GRU) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Sao Paulo (GRU) to Keflavik (KEF) in September 2025 (see full year).

Return flights

20 Sep - 02 Oct Air Canada
05 Sep - 19 Sep United
15 Sep - 27 Sep Air Canada
07 Sep - 21 Sep Air Canada
22 Sep - 27 Sep SWISS
10 Sep - 20 Sep United
28 Sep - 08 Oct KLM
16 Sep - 26 Sep KLM
20 Sep - 03 Oct KLM

Also check the deals for one-way flights from Sao Paulo to Keflavik 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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