AirHint found the following cheapest return flights from Belfast (BHD) to Keflavik (KEF) in March 2026 (see full year).
Return flights
| 10 Mar - 17 Mar | easyJet | ||
| 09 Mar - 12 Mar | easyJet | ||
| 23 Mar - 28 Mar | easyJet | ||
| 10 Mar - 14 Mar | Aer Lingus | ||
| 03 Mar - 06 Mar | Aer Lingus | ||
| 06 Mar - 09 Mar | easyJet | ||
| 18 Mar - 21 Mar | easyJet | ||
| 28 Mar - 29 Mar | easyJet |
Also check the deals for one-way flights from Belfast to Keflavik in March.
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