AirHint found the following cheapest return flights from Santander (SDR) to Keflavik (KEF) in August 2026 (see full year).
Return flights
| 21 Aug - 30 Aug | Iberia | ||
| 23 Aug - 31 Aug | Ryanair | ||
| 21 Aug - 28 Aug | Iberia | ||
| 11 Aug - 13 Aug | Vueling Airlines |
Also check the deals for one-way flights from Santander to Keflavik in August.
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