AirHint found the following cheapest one-way flights from Madrid (MAD) to Keflavik (KEF) in August 2025 (see full year).
One-Way flights
| 26 Aug | Wizz Air Malta | ||
| 14 Aug | Wizz Air Malta | ||
| 27 Aug | Iberia Express | ||
| 29 Aug | Norwegian | ||
| 25 Aug | Wizz Air | ||
| 26 Aug | Iberia Express | direct | |
| 30 Aug | Ryanair | ||
| 21 Aug | Ryanair | ||
| 15 Aug | Ryanair | ||
| 11 Aug | Ryanair |
Also check the deals for return flights from Madrid to Keflavik in August.
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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