By air

Thai International, Bangkor Airways and Air Asia fly to Phnom Penh from Bangkok; Malaysia Airlines and Air Asia from Kuala Lumpur; Vietnam Airlines from Hanoi via stopover in Vientiane/Lao PDR and Ho Chi Minh City. Silkair and Jetstar Asia from Singapore;  Lao Airlines from Vientiane, DRAGONAIR from Hong Kong, Korean Air and Asiana Airlines from Soeul, Shanghai Airlines from Shanghai, and China Southern Airlines from Beijing and Guangzhou.

Eva Air is coming in daily from Taiwan.

There are also flights by Bangkok Air to Siem Reap.