AirHint found the following cheapest return flights from Nashville (BNA) to Keflavik (KEF) in April 2026 (see full year).
Return flights
| 12 Apr - 20 Apr | Icelandair | direct | |
| 19 Apr - 23 Apr | Delta | ||
| 02 Apr - 06 Apr | Allegiant Air | ||
| 15 Apr - 23 Apr | Air France | ||
| 01 Apr - 05 Apr | Icelandair | direct |
Also check the deals for one-way flights from Nashville to Keflavik in April.
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