AirHint found the following cheapest return flights from Sao Paulo (GRU) to Keflavik (KEF) in October 2026 (see full year).

Return flights

05 Oct - 19 Oct	Air Canada
01 Oct - 08 Oct	Air Canada
05 Oct - 12 Oct	Air Canada
04 Oct - 14 Oct	Air Canada
01 Oct - 13 Oct	Air Canada
12 Oct - 22 Oct	Air Canada
02 Oct - 12 Oct	Avianca
19 Oct - 01 Nov	LATAM Airlines Group
09 Oct - 31 Oct	Air Europa

Also check the deals for one-way flights from Sao Paulo to Keflavik 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 Sao Paulo to Keflavik in October from 584€

Return flights