Savannakhet to Phitsanulok Road Trip: Is It Worth Driving?

The Friendship Bridge II, which spans the Mekong River between Savannakhet and Mukdahan in Thailand, opened in 2007. This crossing connects Laos to Thailand via a route that follows Highway 13 south through Laos, then continues on Thai Highway 212, and ends on the Asian Highway 12, a major east-west corridor. Your drive covers roughly 550 kilometers, depending on the final route into Phitsanulok.

The trip segues from the flat, dusty plains of central Laos into the green, fertile basin of the Chao Phraya. Expect to cross the Mekong twice, once at the start and again, though the second crossing is via a smaller bridge at Mukdahan, not the Friendship Bridge II itself.

Both highways are well-maintained, but Thai roads are decidedly safer and better marked than their Lao counterparts. In Thailand, expect heavy truck traffic along Highway 12, especially during the sugarcane harvest (December to March). Overtaking requires patience; use designated passing zones only.

For families, the route offers several clean, well-equipped rest stops. Noteworthy is the petrol station complex in Wang Chin, about halfway, which features a children's playground and a food court. The Thung Salaeng Luang National Park headquarters also has picnic areas and restrooms, ideal for lunch.

Pet owners will find Thai drivers generally tolerant of pets in cars, and many fuel stations allow dogs on leashes. However, water and food for your pet should be carried, as pit stops might be brief. Remember to never leave a dog alone in a parked car in the tropical heat.

Fatigue is a real risk on this long drive. Plan to stop every two hours or 160 kilometers. The Thai Motorway Police provide free coffee at some rest areas, such as the one at km 158 from Mukdahan. Alternatively, use the how to find the best stops and hidden gems between cities guide to discover lesser-known rest spots.

The official border crossing at Savannakhet requires a passport and a visa for Laos if you plan to stay beyond a day. Upon exiting Laos, you'll drive over the bridge into Mukdahan, where Thai customs and immigration are straightforward, typically taking 30-60 minutes. Both sides have currency exchange booths, but rates may be better in either country's main town.

Fuel prices in Laos are typically a bit higher than in Thailand, so consider filling your tank in Mukdahan. Thailand's gas stations are abundant along Highway 12, with clean restrooms and small convenience stores. The total fuel cost for this drive is roughly $40-60 depending on your vehicle's efficiency.

• Highway 212 leads from Mukdahan to Khemmarat, then merges into Highway 12 near Mukdahan's southern edge.
• Thai road signs are fully bilingual, so navigation is easy even for non-Thai speakers.
• Tolls are minimal on this route; expect a few baht at some bridges.
• Mobile connectivity is strong throughout Thailand, with 4G coverage continuous.

After crossing into Thailand, you soon enter the Phu Pha Daeng Wildlife Sanctuary, a protected area that blankets the hills with mixed deciduous forests and bamboo. It's a haven for birdwatchers, though you'll likely see more barking deer or civets than tigers. A brief detour to Pha Daeng Waterfall, a 40-meter cascade, offers a refreshing break.

The route passes through several small towns like Khemmarat and Phon Sawan, where local markets burst with fresh produce, grilled meats, and sticky rice. These are perfect for a quick, authentic meal. In Lom Sak, you'll find the first glimpse of the Phetchabun Mountains, the natural barrier before the central plains.

The dramatic landscape change from dry lowlands to lush mountains is a feast for the eyes. The road winds through the Thung Salaeng Luang National Park, which is famous for its pine forests and rolling savannahs. If you're lucky, you might spot wild elephants crossing the road, so stay alert.

For an immersive experience, consider a short detour to the Phu Hin Rong Kla National Park, accessible just south of Lom Sak. It's a remnant of Cold War-era battlegrounds and offers geological oddities like vertical rock formations and a natural stone pillar called Lan Hin Pum.