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

Return flights

03 Aug - 10 Aug	Spirit Airlines
31 Aug - 29 Sep	Icelandair	direct
21 Aug - 28 Aug	Air Canada
23 Aug - 30 Aug	Air Canada
21 Aug - 28 Aug	Icelandair	direct
23 Aug - 30 Aug	Icelandair	direct
10 Aug - 16 Aug	Frontier Airlines
01 Aug - 31 Aug	Spirit Airlines
10 Aug - 16 Aug	Icelandair	direct
03 Aug - 10 Aug	Icelandair	direct

Also check the deals for one-way flights from Orlando to Keflavik in August.

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 August from $497

Return flights