AirHint found the following cheapest one-way flights from Madrid (MAD) to Keflavik (KEF) in May 2026 (see full year).
One-Way flights
| 02 May | Wizz Air UK | ||
| 09 May | Wizz Air UK | ||
| 18 May | Ryanair | ||
| 11 May | Iberia | ||
| 04 May | Iberia | ||
| 10 May | Iberia | ||
| 08 May | Ryanair | ||
| 04 May | Fly Play | direct | |
| 19 May | easyJet | ||
| 11 May | Fly Play | direct |
Also check the deals for return flights from Madrid to Keflavik in May.
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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