Pattaya to Kampong Thom: Ultimate Road Trip Guide

Crossing from Thailand's eastern seaboard into Cambodia's central heartland, the Pattaya to Kampong Thom route follows National Highway 7 (NH7) after the border at Aranyaprathet. This stretch covers roughly 800 kilometers (500 miles) and typically takes 10 to 12 hours of driving time, depending on border procedures and traffic. The route offers a fascinating blend of coastal plains, rubber plantations, and ancient temple ruins.

The most direct path uses Thai Route 359 to Sa Kaeo, then crosses at the Aranyaprathet–Poipet border, rejoining Cambodia's NH5 to Sisophon and NH6 through Siem Reap before turning south on NH6 toward Kampong Thom. Driving time from Pattaya city center to the border is about three hours, followed by the Cambodian leg of seven to eight hours.

The drive from Pattaya quickly transitions from beachfront high-rises to agricultural land. As you leave the city, Route 359 winds through cassava and sugarcane fields, small villages, and toward the forested foothills of the Dongrek Mountains near the border. After crossing into Cambodia, the landscape opens to flat, fertile plains ideal for rice cultivation and rubber plantations. The area around Kampong Thom is especially noted for its scenic views of the Steung Sen River, which flows through the province.

Natural attractions along the way include the Preah Vihear temple complex, but it's located off the main route. More accessible is the Beng Mealea temple, a jungle-wrapped ruin accessible via a short detour on the way to Siem Reap. If you have time, the Phnom Kulen National Park offers waterfalls and ancient carvings, but it requires a time commitment. For a quick stop, the Kbal Spean site has riverbed carvings but is also off the beaten path.

Local commerce thrives at roadside markets, especially near the border town of Poipet and in Siem Reap, where you'll find fresh fruits, snacks, and artisan crafts. In Kampong Thom town itself, the central market offers a glimpse into everyday Cambodian life with fresh produce and traditional Khmer souvenirs. The locals are welcoming to travelers, and a basic phrase book can enhance your experience at these stalls.

The region's culinary infrastructure is developing; along the main highways, you'll find simple Khmer restaurants serving noodle soups, grilled meats, and rice dishes. Hygiene standards vary, so it's wise to choose establishments frequented by many locals. Western-style fast-food outlets are rare outside major cities, but you can stock up on packaged snacks at larger supermarkets in Poipet or Siem Reap.

Planning fuel stops requires understanding the border zones: Thai petrol is typically cheaper than Cambodian fuel, but you cannot cross into Cambodia with a full can of fuel. Plan to fill up in Aranyaprathet before exiting Thailand, then fill again at the first major Cambodian town, Poipet, where fuel stations are plentiful. The Cambodian leg has sparse service stations, so it's wise to carry extra fuel if you have an auxiliary tank.

Cambodian fuel prices currently average around 5,500 riel per liter (about $1.35), while Thai prices are roughly 35 baht per liter ($1.00). Renting a car for a one-way drop-off is possible from agencies in Pattaya, but expect a surcharge for returning in Kampong Thom. Alternatively, many travelers choose to drive a private vehicle and ship it back via a local service.

Essential Costs (Approximate)

• Toll fees on Thai side: 200 THB (~$6) combined
• Border crossing fee (Cambodian side): $30 per vehicle processing
• Cambodian visa on arrival: $30 for most nationalities
• Fuel cost for entire route (one way): $60–80
• Overnight accommodation (if needed): $15–30 per night

Road conditions between the border and Kampong Thom are mostly good. The Cambodian sections of NH5 and NH6 have been recently upgraded, but potholes can still appear, particularly in rural stretches. Drive carefully at night because livestock and unlit vehicles are common. Always carry extra water, a first-aid kit, and a physical map, as mobile signals can be weak in remote areas.

For pet owners, the route is accommodating: most hotels in Pattaya and Kampong Thom are pet-friendly, but border officials may require vaccination papers. Keep your pet's documentation handy, and use rest stops for bathroom breaks.

Fatigue management is crucial on this long drive. Plan to stop every two hours or at major towns like Sa Kaeo, Poipet, and Siem Reap. In Sa Kaeo, Krathong Restaurant offers a peaceful garden setting. In Poipet, the popular Baba House serves both Khmer and Western food. Around halfway, the Mekong Star Hotel in Poi Pet is a common layover point. If you need additional rest, the town of Skuon, known as 'Spider Town' on the final stretch to Kampong Thom, is an interesting place to stretch your legs—but its famous fried spiders are an acquired taste.

For families, the larger cities have parks and restaurants with playgrounds. In Siem Reap, the War Museum Cambodia provides an educational stop for older children. The route itself passes through several provincial towns where you can find clean restrooms at petrol stations or local markets.