Yen Bai to Thai Binh: A Road Trip Guide

Most drivers leave Yen Bai via National Route 37, crossing the Red River just south of town. The road aims for Ngoi Bo, then funnels into the Te Tieu plain, one of the few stretches in the north where the horizon flattens entirely. From there, Highway 10 cuts across the Thai Binh delta, a landscape of rice paddies and dyke roads that seems to stretch endlessly toward the coast.

There is a reason this drive is less famous than the mountain passes to the west: it is long, straight, and nearly devoid of hairpins. For some, that is exactly the appeal. The exact distance from Yen Bai city center to Thai Binh city center is 201 kilometers, and the typical drive takes 4 hours and 30 minutes in normal traffic. You can shave off 20 minutes if you use the newly opened Cau Gie–Ninh Binh expressway, but that adds a toll of about 80,000 VND for a standard car.

Before setting out, note that the Red River Delta is prone to morning fog from November to February. The fog rarely lasts beyond 9 a.m., but it can cut visibility to under 100 meters near the river crossings. Plan your departure after that window to keep the first hour stress-free.

The route runs mostly on National Route 37 (QL37) from Yen Bai to Tuyen Quang, then onto Highway 10 (QL10) all the way to Thai Binh. These are two-lane roads in decent condition, with some newly paved sections around Ngoi Bo and the Thai Binh city ring. Expect occasional potholes near construction zones, especially between Tuyen Quang and Phu Ly.

Fuel stations appear every 20-30 kilometers, so you will never be far from a fill-up. As of 2025, the average price for gasoline in Vietnam is around 24,000 VND per liter, so the 201 km trip will consume roughly 12-15 liters for a typical sedan, costing between 288,000 and 360,000 VND. There are no rare or hidden stations, but the bigger-brand stations (Petrolimex, PV Oil) are clustered on the outskirts of Tuyen Quang and Phu Ly.

For tolls, you will only pay if you take the expressway. The Cau Gie–Ninh Binh toll gate charges 80,000 VND for a standard car, and the road cuts 20 minutes off the total time. Alternatively, the free QL10 is slower but passes through more towns, which is useful if you want a meal or a break.

• Road condition: QL37 is winding but paved; QL10 is straight and flat.
• Fuel cost estimate: 288,000–360,000 VND for a sedan.
• Alternative expressway: Cau Gie–Ninh Binh, toll 80,000 VND, saves 20 minutes.
• Traffic: Truck-heavy on QL10, especially in the early morning and late afternoon.
• Weather: Fog in winter, but otherwise mild; summer brings heavy but short afternoon showers.

If you want to plan more stops and detours, this guide on how to find the best stops and hidden gems between cities offers practical techniques for mapping your own adventure.

The scenery transforms from the terraced hills of Yen Bai province to the flat rice fields of the delta. The first 80 kilometers along QL37 often hide in the shadow of limestone karsts, a preview of the famous karst landscape of Ninh Binh, which is a UNESCO World Heritage Site under the Trang An Complex. If you have time, a 30-minute detour into Ninh Binh's Tam Coc area is worth it, but it is not on the direct route.

Further south, the road literally lines with sugarcane fields and duck farms. The local commerce is strongly agricultural, and every few kilometers you will see stalls selling pomelo, bamboo shoots, and and fresh rice paper. In the town of Phu Ly, a local specialty is 'banh cuon' (steamed rice rolls), which you can find at dawn at the central market.

The Red River Delta is also the heart of Vietnam's wet rice economy, and during the harvest season (May-June and November-December), the road becomes a golden corridor. The aesthetics are minimalist: a thin asphalt line, blue sky, and endless green. This is a trip for those who find beauty in repetitive geometry, not in drama.

Villages like Vu Thu, halfway through the route, are quiet and rarely visited. They offer a glimpse of traditional rural life, with houses clustered on dykes and boats on narrow canals. However, there are no major relics or museums on the route, so the culture is in daily life, not in monuments.

The route is generally safe for experienced drivers, but the flat roads can induce drowsiness. There are plenty of rest stops, but they are not up to Western standards. However, you will find 'nha nghi' (guesthouses) that rent rooms by the hour, and there are several official rest areas on QL10, the largest one being in the district of Duy Tien, about 120 km from Yen Bai. Also keep an eye out for motorbikes and livestock crossing the road, especially near villages.

For families, the route is suitable, but there are no enclosed playgrounds along the way. The main attractions are the rice fields themselves—kids can run along the dykes and see water buffalo, but do not plan for structured activities. On weekends, the Thanh Thuy hot springs, about 15 km south of Phu Ly, are a popular stop and have a swimming pool, though the facilities are basic. For pet owners, the route is pet-friendly in the sense that the roads are open and there is no paperwork needed, but you must keep your pet on a leash at rest areas, and not all restaurants allow pets inside.

To manage fatigue, stop at least every two hours. The best rest zones are: the Tuyen Quang city park (hour 1), the Phu Ly roadside cafe (hour 2.5), and the Vu Thu market (hour 3.5). These places offer shade, clean restrooms, and often a snack. The ideal schedule is to leave Yen Bai at 8 a.m., stop for a coffee at 9:30, have lunch in Phu Ly at noon, and reach Thai Binh by 2 p.m.