AirHint found the following cheapest return flights from Billund (BLL) to Keflavik (KEF) in March 2026 (see full year).
Return flights
| 05 Mar - 12 Mar | Wizz Air | ||
| 06 Mar - 10 Mar | Scandinavian Airlines | ||
| 17 Mar - 21 Mar | KLM |
Also check the deals for one-way flights from Billund to Keflavik in March.
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