AirHint found the following cheapest one-way flights from Madrid (MAD) to Keflavik (KEF) in August 2026 (see full year).
One-Way flights
| 29 Aug | Iberia Express | direct | |
| 24 Aug | Ryanair | ||
| 12 Aug | Ryanair | ||
| 25 Aug | Ryanair | ||
| 28 Aug | Iberia Express | ||
| 26 Aug | easyJet | ||
| 26 Aug | Iberia Express | direct | |
| 20 Aug | Ryanair | ||
| 21 Aug | Ryanair | ||
| 19 Aug | Transavia France |
Also check the deals for return flights from Madrid to Keflavik in August.
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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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