Cheapest return flights from Nashville to Keflavik in September from $535

Best time to book flights for Nashville (BNA) to Keflavik (KEF) flights at AirHint

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

Return flights

10 Sep - 15 Sep Spirit Airlines
16 Sep - 23 Sep jetBlue
07 Sep - 15 Sep Spirit Airlines
17 Sep - 24 Sep Spirit Airlines
01 Sep - 08 Sep Icelandair direct
10 Sep - 15 Sep Icelandair direct
03 Sep - 17 Sep Icelandair direct
19 Sep - 26 Sep Icelandair direct
17 Sep - 24 Sep Icelandair direct
07 Sep - 15 Sep Icelandair direct

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

Skyscanner

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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