Nattakan Transportation (Siem Reap Branch) is the only direct bus from Siem Reap to Bangkok and vice versa. Nattakan operates 2 departures daily which are 0800 and 0900 from Siem Reap to Bangkok. And 2 more departures from Bangkok to Siem Reap with the same times. It costs USD 28.00 a ticket including a free pickup service from your hotel to the station (only 1 kilometer around the station is allowed).
Nattakan Transportation (Phnom Penh Branch) is also a direct bus departure from Phnom Penh to Bangkok. Yet, on the even day only which means 2nd, 4th, 6th, etc. This means the Thai bus will arrive in Cambodia from Bangkok on the odd day. Leaving from Phnom Penh to Bangkok on the odd day is strongly not recommended.
Address: Angkor Pet Road, Near Hang Tep Hotel, Siem Reap City, Kingdom of Cambodia.
Tel: 078 795 333/011 87 77 27
Address: Mo Chit 2 Bus Terminal (หมอชิต 2 (อาคารผู้โดยสาร), Bangkok
Tel: +66 2 936 0657; +66 89 281 1396
Address: No. 24E0, St. 102, S/K Wat Phnom, Khan Daun Penh, Phnom Penh City, Kingdom of Cambodia.
Address: No. 24E0, Street 102, Sangkat Wat Phnom, Khan Daun Penh, Phnom Penh City, Kingdom of Cambodia