AirHint found the following cheapest return flights from Orlando (ORL) to Keflavik (KEF) in October 2025 (see full year).

Return flights

03 Oct - 07 Oct	Norse Atlantic Airways (UK)
16 Oct - 23 Oct	Spirit Airlines
11 Oct - 18 Oct	Frontier Airlines
08 Oct - 22 Oct	Icelandair	direct
16 Oct - 23 Oct	Icelandair	direct
03 Oct - 07 Oct	Icelandair	direct
08 Oct - 26 Oct	Icelandair	direct
11 Oct - 18 Oct	Icelandair	direct

Also check the deals for one-way flights from Orlando 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 Orlando to Keflavik in October from $531

Return flights