AirHint found the following cheapest one-way flights from Madrid (MAD) to Keflavik (KEF) in September 2026 (see full year).
One-Way flights
| 08 Sep | Wizz Air UK | ||
| 28 Sep | Wizz Air UK | ||
| 09 Sep | Iberia Express | ||
| 02 Sep | Transavia France | ||
| 26 Sep | Wizz Air UK | ||
| 23 Sep | Wizz Air | ||
| 24 Sep | Transavia France | ||
| 03 Sep | Wizz Air | ||
| 01 Sep | Iberia | ||
| 13 Sep | Ryanair |
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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