Find the cheapest Cathay Pacific flights on Expedia from Hong Kong (HKG) to Samui Intl. Airport (USM). 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 Cathay Pacific for this route in the past 7 days starts at €543 for travel on 13 November 2026.
€543 Cheap Cathay Pacific flights Hong Kong SAR (HKG) to Koh Samui (USM)
Prices were available within the past 7 days and start at €543 for one-way flights and €761 for return, for the period specified. Prices and availability are subject to change.