Phitsanulok to Loei: Scenic Drive Guide

The route from Phitsanulok to Loei covers approximately 280 kilometers via Highway 12 (Asia Highway 12), winding through the Phetchabun Mountains. This drive typically takes 4–5 hours, depending on stops and traffic.

This corridor is more than a transit path; it's a transition from the flat Chao Phraya basin to the cool hills of Isan, offering a dramatic shift in climate and scenery.

Highway 12 is a well-maintained two-lane road with occasional passing lanes. The surface is smooth asphalt, but steep gradients and tight curves are common in the mountain sections.

• Fuel stations are plentiful in Phitsanulok and Loei, but scarce in the middle stretch. Fill up in Lom Sak (100 km in) or at Khao Kho (130 km).
• Diesel prices around THB 30 per liter (as of 2025). Expect to use about 10 liters for the journey.

For real-time traffic and road conditions, check the how to find the best stops and hidden gems between cities guide.

The road climbs through the Phetchabun Range, with viewpoints like Khao Kho offering panoramic views of misty valleys. The cooler climate here supports pine forests, contrasting with the rice paddies near Phitsanulok.

Local markets en route sell fresh produce and regional snacks. In Khao Kho, try 'khao lam' (sticky rice in bamboo) and locally grown coffee. The area is also known for its flower fields, especially in winter.

Near Lom Sak, don't miss the Phu Hin Rong Kla National Park, a former communist stronghold with rock formations and a museum.

The mountain roads require careful driving, especially during rain (May–October). Low gear for descents and constant headlights are advised. There are guardrails on most dangerous curves.

For families, the Khao Kho area offers several parks and a butterfly farm. Pet-friendly accommodations are common in Loei, but check with individual resorts regarding size restrictions.

Plan rest stops at designated viewpoints or rest areas. The town of Lom Sak (about 2 hours in) has ample restaurants and toilets. Consider a mid-journey break at Khao Kho, where the cool air and scenery are beneficial for driver alertness.