Cheapest one-way flights from San Sebastian to Keflavik in August from $295

AirHint found the following cheapest one-way flights from San Sebastian (EAS) to Keflavik (KEF) in August 2025 (see full year).

One-Way flights

20 Aug Vueling Airlines

Also check the deals for return flights from San Sebastian to Keflavik in August.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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