Find the cheapest KLM flights on Expedia from Madrid (MAD) to Reykjavik (REK). Flight ticket prices change frequently based on availability and demand. We send price-drop alerts to make air travel simple and flexible. The lowest one-way fare found on Expedia with KLM for this route in the past 7 days starts at S$246 for travel on 10 December 2026.
S$246 Cheap KLM flights Madrid (MAD) to Reykjavik (REK)
Prices were available within the past 7 days and start at S$246 for one-way flights and S$524 for return, for the period specified. Prices and availability are subject to change.