My Tho to Kampong Thom: A Detailed Road Trip Guide

Stretching roughly 400 kilometers, the overland journey from My Tho, a Mekong Delta hub in Vietnam, to Kampong Thom, a Cambodian province known for its ancient temples, crosses two countries and a dramatic shift in landscape. My Tho sits on the northern bank of the Mighty Mekong, where the river splits into multiple distributaries, creating a maze of canals and floating markets. Heading west, the terrain flattens into the vast, agricultural expanse of the Mekong Delta before entering Cambodia at the Moc Bai border crossing.

This specific route gains historical significance because it shadows part of the historic route used by French colonial officials and later Vietnamese and Khmer traders. Today, the journey is a practical yet varied drive, offering a mixture of well-maintained national highways and more rustic provincial roads. Before you set out, understand the essential question: how to find the best stops and hidden gems between cities will enhance your experience beyond a simple point-to-point transit.

As you leave My Tho, the landscape is a mosaic of emerald rice paddies, fruit orchards, and fish farms, crisscrossed by small canals. The skyline is flat, punctuated only by the occasional palm tree or bridge. This agricultural region is the breadbasket of Vietnam, and you'll see a constant flow of produce on barges and trucks. Just over the border, the character shifts: the Delta's lushness gradually gives way to a drier, more open terrain with scattered sugar palm trees – a iconic image of Cambodia.

Natural attractions are subtle but present. Near the border, the Vam Co Dong River offers a glimpse of local river life alongside the highway. As you approach Phnom Penh, the Mekong and Tonle Sap rivers converge, and you'll cross the impressive Chroy Changvar Bridge. North of the city, NH6 parallels the Tonle Sap lake's eastern edge – but the lake is usually hidden from view until you pass Kampong Thom, where the Stung Sen river flows. The area around Kampong Thom has a unique geology, with low, weathered mountains known as Phnom Santuk, standing in contrast to the floodplain.

Driving from My Tho to Kampong Thom typically takes about 8–10 hours, depending on border delays, road conditions, and how often you stop. The most direct path uses Vietnamese National Highway QL1A from My Tho to the Moc Bai border. After clearing immigration, you continue on Cambodia's National Route 1 to Phnom Penh, then switch to National Route 6 to head northwest to Kampong Thom.

This route is well-signposted and heavily used, meaning fuel stations and basic services are frequent. However, inside Cambodia, road quality varies. The stretch between the border and Phnom Penh is generally good, but NH6 is narrower and less maintained. Your vehicle must be legally allowed for cross-border travel, requiring proper registration and insurance. The border crossing itself can be congested on weekends and holidays.

• Gasoline prices are higher in Vietnam than in Cambodia, but stations are sparse in rural Cambodia, so plan to refuel at major towns.
• As of 2025, Vietnam's fuel price is around 24,000 VND per liter, while Cambodia's hovers around 4,200 KHR (about $1 USD) per liter, a slight savings.
• Tolls on QL1A total about 100,000 VND for passenger cars; Cambodia has no tolls on NH1 or NH6, but road conditions may cause wear and tear.

• QL1A is multi-lane with barriers, but heavy truck traffic demands caution.
• Cambodia's NH1 is a two-lane road with potholes in sections, especially between Bavet and Kompong Cham.
• NH6 from Phnom Penh to Kampong Thom is better, but watch for agricultural vehicles and livestock crossings.

Safety is a primary concern on any long drive. Both countries use right-hand traffic, but driving styles differ: Vietnamese drivers are often more aggressive, while Cambodians tend to be more relaxed but unpredictable. Always use your seat belt and consider an international driver's permit. The route has many intersections and roundabouts, especially in Phnom Penh, where traffic can be chaotic.

For families, the journey is feasible if you plan regular breaks. The drive is not particularly child-friendly with long stretches of nothing to do, but you can break it up with visits to a kid-friendly attraction like the Phnom Penh Zoo or the silk farm in Takéo. Many hotels offer swimming pools, which are a great way for children to burn off energy.

Pet-friendly framework: Crossing borders with a pet is possible but requires a health certificate and rabies vaccination, and it must be up-to-date with all vaccinations. In Vietnam, you'll need a pet export permit; Cambodia requires an import permit. Be prepared for official checks, but generally, it's a hassle but doable.

Fatigue management is critical on a 9-hour drive. Plan to stop at least every 2–3 hours. Rest zones are limited to roadside eateries and gas stations; some have open-air seating and clean restrooms. Consider an overnight stop in Phnom Penh or Kompong Cham to break the trip. A nap in a hammock at a local cafe is a common practice in Cambodia.