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

Return flights

06 Mar - 16 Mar	Arajet
24 Mar - 31 Mar	Air Europa
18 Mar - 31 Mar	Avianca
05 Mar - 16 Mar	GOL Linhas Aéreas
14 Mar - 21 Mar	Air Europa
24 Mar - 04 Apr	Air Europa
04 Mar - 16 Mar	Avianca
16 Mar - 30 Mar	Avianca
18 Mar - 02 Apr	Avianca
18 Mar - 01 Apr	Avianca
17 Mar - 01 Apr	Air Europa
02 Mar - 11 Mar	LATAM Airlines Group
03 Mar - 13 Mar	Avianca
18 Mar - 24 Mar	Air Europa
16 Mar - 01 Apr	TAP

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

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 March from 851€

Return flights