Phnom Penh to Phan Rang–Thap Cham: Essential Road Trip Guide

The route from Phnom Penh to Phan Rang–Thap Cham traces the historic path of the ancient Champa kingdom, whose ruins still dot the landscape. As you cross the border, you'll leave the Mekong's flatlands and ascend to the western edge of the Central Highlands, then drop to Vietnam's sun-drenched south-central coast.

This guide covers the essentials: driving time, fuel costs, border procedures, best stops, and practical tips for families and pets. Use the linked guide on how to find the best stops and hidden gems between cities to enrich your journey.

Drive defensively, especially at dusk when livestock and motorbikes are common. Wear seatbelts, and keep an emergency kit. Road signage is adequate, but watch for sudden lane changes.

Fatigue is a risk on this 7–8 hour drive. Plan stops every 2–3 hours. Some recommended rest areas: Svay Rieng (Cambodia), Moc Bai, and the highway rest stops near Bao Loc.

For families, safe stop options include children-friendly cafes in Ho Chi Minh City and easy-access waterfalls like Dambri. For pets, many service areas allow dogs on leashes, but it's wise to contact in advance.

Start on National Road 1 (NR1) from Phnom Penh to Bavet, then continue on Vietnam's QL22 to Ho Chi Minh City, then QL1A north to Phan Rang–Thap Cham. The entire route is paved, but expect slower traffic near urban areas.

The border at Moc Bai (Vietnam) / Bavet (Cambodia) is the most direct. Cross with proper vehicle documents: a carnet or temporary import permit for foreign vehicles. Expect 1–2 hours at the border.

• Fuel: Cambodia ~4,000 riel/liter (~$1); Vietnam ~24,000 VND/liter (~$1). Total fuel cost for the trip: ~$25–30.
• Tolls on Vietnamese expressways: ~300,000 VND total. Use cash or ETC card.
• Road quality: Good on QL1A, but watch for motorcycles and unexpected potholes.

After crossing into Vietnam, the flat Mekong Delta gives way to rubber plantations. Near Bao Loc, the terrain rises to 1,200 meters, with waterfalls like Dambri.

Further north, the landscape transitions to arid, sun-drenched plains dotted with dragon fruit farms – a signature of Ninh Thuan province. The climate shifts from tropical monsoon to a drier, windier zone, making the area ideal for salt fields and vineyards.

Local commerce thrives on roadside stalls selling cashews and dragon fruit. In Phan Rang, visit the Po Klong Garai Cham Towers, a well-preserved 13th-century Cham temple complex.