Air Class Líneas Aéreas, Lanmei Airlines and 2 other airlines fly from Angkor Wat to Sihanoukville 5 times a day. Alternatively, Virak Buntham operates a bus from Angkor Wat to Sihanoukville every 4 hours. Tickets cost $20 and the journey takes 10 h. Olongpich Transport Co.,Ltd also services this route 4 times a day.
From Angkor Wat taxi to Siem Reap airport, fly to Sihanoukville airport, then taxi to Sihanoukville. 1 h 16 min $140. From Angkor Wat taxi to Siem Reap Virak Buntham Express then bus to Sihanoukville Virak Buntham Express. 10 h 6 min $22. From Angkor Wat taxi to Siem Reap Virak Buntham Express, Van to Phnom Penh Virak Buntham Express, walk to Phnom Penh Station, then train to Sihanoukville station. 13 h 51 min $23. From Angkor Wat drive to Sihanoukville. 7 h 48 min $53.