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

Return flights

16 Mar - 31 Mar	Lufthansa
16 Mar - 28 Mar	SWISS
16 Mar - 29 Mar	Lufthansa
16 Mar - 30 Mar	Lufthansa
15 Mar - 28 Mar	KLM
15 Mar - 29 Mar	KLM
15 Mar - 30 Mar	KLM
15 Mar - 31 Mar	KLM
17 Mar - 28 Mar	KLM
17 Mar - 29 Mar	KLM
21 Mar - 10 Apr	Emirates

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Sao Paulo to Keflavik in March from 925€

Return flights