AirHint found the following cheapest one-way flights from Madrid (MAD) to Keflavik (KEF) in May 2026 (see full year).
One-Way flights
| 06 May | Wizz Air Malta | ||
| 20 May | Wizz Air | ||
| 09 May | Ryanair | ||
| 10 May | Wizz Air Malta | ||
| 16 May | Iberia Express | ||
| 27 May | easyJet | ||
| 21 May | Ryanair | ||
| 11 May | Ryanair | ||
| 31 May | Ryanair | ||
| 08 May | Wizz Air Malta |
Also check the deals for return flights from Madrid to Keflavik in May.
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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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