Find the cheapest Icelandair flights on Expedia from Seattle (SEA) 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 Icelandair for this route in the past 7 days starts at S$670 for travel on 4 December 2026.
S$670 Cheap Icelandair flights Seattle (SEA) to Reykjavik (REK)
Prices were available within the past 7 days and start at S$670 for one-way flights and S$759 for return, for the period specified. Prices and availability are subject to change.