AirHint found the following cheapest one-way flights from Madrid (MAD) to Keflavik (KEF) in September 2026 (see full year).
One-Way flights
| 07 Sep | Wizz Air Malta | ||
| 05 Sep | Norwegian | ||
| 11 Sep | Wizz Air Malta | ||
| 09 Sep | Iberia Express | ||
| 14 Sep | Wizz Air Malta | ||
| 16 Sep | Wizz Air Malta | ||
| 15 Sep | Ryanair | ||
| 12 Sep | Iberia | ||
| 06 Sep | KLM | ||
| 04 Sep | Scandinavian Airlines |
Also check the deals for return flights from Madrid to Keflavik in September.
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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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