If you are on a tight budget, it's possible to take a bus directly from Bangkok, Thailand to Siem Reap, Cambodia.
Cambodia is Thailand's neighbor to the east. Home to the fantastic and mythical Angkor Wat, Siem Reap is the perfect place to visit for a visa-run weekend - or longer - away from Bangkok.
A ticket from Bangkok (Mo Chit) Bus Terminal to Siem Reap costs 750 baht and departs at 9:00am, arriving in the late afternoon in Siem Reap (time dependent upon how long it takes at the border). Tickets can be purchased at the bus station or online from Thai Ticket Major.
The bus will drive to the Aranyaprathet/Poi Pet crossing, where you will have to get out and walk across the border on foot, before continuing by bus on the other side. If you do not already have a visa, you might be forced to pay for an overpriced visa at the Aranyaprathet consulate before crossing. You can avoid this hassle by securing a Cambodian e-visa in advance at the Cambodian government website: