Cheapest return flights from Nashville to Keflavik in September from $367

AirHint found the following cheapest return flights from Nashville (BNA) to Keflavik (KEF) in September 2025 (see full year).

Return flights

28 Sep - 05 Oct Icelandair direct
01 Sep - 08 Sep Icelandair direct
05 Sep - 13 Sep Spirit Airlines
08 Sep - 16 Sep Spirit Airlines
06 Sep - 13 Sep Spirit Airlines
05 Sep - 12 Sep Spirit Airlines
10 Sep - 04 Oct Spirit Airlines
02 Sep - 10 Sep Air Canada
05 Sep - 19 Sep Air Canada
06 Sep - 14 Sep Spirit Airlines
04 Sep - 11 Sep Air Canada
02 Sep - 09 Sep Air Canada

Also check the deals for one-way flights from Nashville to Keflavik in September.

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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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