AirHint found the following cheapest one-way flights from Keflavik (KEF) to Madrid (MAD) in March 2026 (see full year).
One-Way flights
| 17 Mar | easyJet | ||
| 03 Mar | easyJet | ||
| 25 Mar | easyJet | ||
| 26 Mar | easyJet | ||
| 06 Mar | easyJet | ||
| 09 Mar | KLM | ||
| 30 Mar | Wizz Air |
Also check the deals for return flights from Keflavik to Madrid in March.
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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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