AirHint found the following cheapest return flights from Dallas (DAL) to Keflavik (KEF) in May 2026 (see full year).
Return flights
| 06 May - 13 May | Air France | ||
| 07 May - 14 May | Air France | ||
| 21 May - 28 May | Delta |
Also check the deals for one-way flights from Dallas to Keflavik in May.
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