Beijing (China)- Moscow (Russia) Trains: K3/ K4

The K3/K4 International Train is widely known as one of the most legendary trans-Eurasia rail journeys. Operating since 1959, it connects China, Mongolia, and Russia through a continuous railway route along the eastern section of the Trans-Siberian Railway.

Unlike the K19/K20 route that travels only between China and Russia, the K3/K4 line crosses three countries in a single journey: Beijing (北京) → Mongolia → Russia → Moscow (莫斯科). Covering approximately 7,826 km, the journey takes around 5–6 days, passing through diverse landscapes including the North China Plain, the vast Mongolian steppe, the remote Siberian forests, and the iconic Lake Baikal (贝加尔湖) region.

This is not just transportation—it is a slow-travel experience designed for travelers seeking culture, landscapes, and immersive cross-border adventure.

Train Overview: Key Information at a Glance

K3 (Beijing → Moscow) / K4 (Moscow → Beijing)

The train is operated under Chinese railway management, with Chinese-speaking staff on board, making communication relatively easy for travelers.

Train Cabins, Facilities & Travel Experience

Cabin Types and Travel Comfort

The K3/K4 train offers three main accommodation classes:

Luxury Soft Sleeper (High-Class Soft Sleeper)

This is the most comfortable option, featuring a private 2-person cabin with a lockable door. Inside, passengers enjoy air-conditioning, private bathroom facilities, charging ports compatible with both Chinese and Russian standards, wardrobes, and large panoramic windows.

It is ideal for families, business travelers, or anyone prioritizing privacy and comfort on long-distance rail travel.

Soft Sleeper 

A 4-person enclosed cabin with upper and lower berths. Facilities include air-conditioning, shared washrooms at both ends of the carriage, charging ports, and luggage storage. This option is popular among small groups and budget-conscious travelers seeking comfort.

Hard Sleeper 

An open 4-berth layout (2 upper + 2 lower beds). This is the most budget-friendly option and is popular with backpackers and social travelers. Facilities are basic but sufficient for long-distance travel.

Onboard Facilities

The train includes a Chinese-style dining car during the China and Mongolia sections and a Russian-style dining car in Russia.

Passengers can enjoy Chinese meals such as rice dishes, noodles, and stir-fried food, while the Russian dining car serves dishes like borscht (红菜汤), steak, bread, and kvass (格瓦斯).

Hot water is available 24 hours in all carriages, and passengers are encouraged to bring their own water bottles. Charging availability varies by cabin type, and mobile connectivity is limited outside China.

Wi-Fi is not available on board, and travelers should prepare offline maps and entertainment in advance.

Ticket Booking Guide (Offline Purchase Only)

Tickets for K3/K4 are not available on online platforms like 12306. Travelers must book through official offline channels.

Official Booking Locations

Tickets can be purchased at:

• China International Travel Service (CITS / 中国国际旅行社总社), Beijing (北京)
• International railway ticket counters in Tianjin (天津), Shenyang (沈阳), Harbin (哈尔滨), and Manzhouli (满洲里)
• Yaroslavsky Station international ticket office in Moscow (莫斯科雅罗斯拉夫斯基火车站)

Required Documents

Travelers must prepare:

• Valid passport (with at least 6 months validity)
• Russian visa (tourist or business)
• Mongolia transit visa (mandatory for K3/K4 route)
• National ID for domestic boarding verification in China

Booking Rules

Tickets are released in advance, with group bookings requiring earlier reservation. Once issued, tickets are generally non-refundable and non-changeable except under exceptional circumstances.

Border Crossing Process (China–Mongolia–Russia)

The K3/K4 route includes two international border crossings, both managed onboard and at stations with clear procedures.

China → Mongolia (Erenhot → Zamyn-Uud)

On the second day of travel, the train arrives at Erenhot (二连浩特). Chinese border officers board the train to inspect passports and visas, followed by customs checks.

After a short journey, passengers disembark at Zamyn-Uud (扎门乌德) in Mongolia for immigration clearance. Officers verify passports and Mongolia transit visas before allowing reboarding.

Mongolia → Russia (Sukhbaatar → Naushki)

Later the same day, the train stops at Sukhbaatar (苏赫巴托). Mongolian officials conduct exit checks onboard before the train continues to Naushki (纳乌什基) in Russia.

At the Russian border, passengers complete immigration forms and present passports and visas. After customs inspection, travelers return to the train.

Travel Highlights Along the Route

The K3/K4 journey is designed for flexible travel, allowing passengers to stop at key destinations along the way.

Ulaanbaatar, Mongolia (乌兰巴托)

Ulaanbaatar is the capital of Mongolia and a cultural hub blending modern life with nomadic traditions.

Key attractions include Sukhbaatar Square (成吉思汗广场), Gandan Monastery (甘丹寺), the National Museum of Mongolia (蒙古国家博物馆), and local markets such as Black Gobi Market (黑戈壁市场).

Local cuisine features Mongolian milk tea, lamb dishes, and traditional dumplings.

Irkutsk, Russia (伊尔库茨克)

Known as the gateway to Lake Baikal (贝加尔湖), Irkutsk is one of Siberia’s most charming cities.

Visitors often explore the lake region, wooden architecture museums, and the scenic Angara River (安加拉河).

A popular dining stop is a traditional Russian restaurant serving borscht (红菜汤), grilled meats, and black bread.

Other Key Stops in Russia

• Novosibirsk (新西伯利亚) – Siberia’s largest city and cultural center
• Krasnoyarsk (克拉斯诺亚尔斯克) – Famous for the Yenisei River (叶尼塞河)
• Yekaterinburg (叶卡捷琳堡) – Known for the Europe–Asia boundary monument

Each city offers a unique perspective on Russian history, nature, and urban life.

Suggested 7-Day Train Journey Itinerary

The full route from Beijing to Moscow follows a structured multi-day journey:

• Day 1: Departure from Beijing (北京)
• Day 2: China → Mongolia border crossing
• Day 3: Mongolia → Russia entry
• Day 4: Arrival in Irkutsk (伊尔库茨克)
• Day 5: Travel across Siberia
• Day 6: Western Siberia cities
• Day 7: Arrival in Moscow (莫斯科)

This timeline allows travelers to experience landscapes from East Asia to Europe in one continuous journey.

Practical Travel Tips

Travelers must prepare visas for both Russia and Mongolia. Currency exchange is recommended in advance, as cash is required in many onboard and rural locations.

Pack essentials such as power banks, snacks, warm clothing, and offline navigation tools. Mobile signals are only stable within China.

Certain items such as fresh food, large amounts of cash, drones, and restricted goods are prohibited during border crossings.

Frequently Asked Questions

Which is better: K3/K4 or K19/K20?
K3/K4 offers a richer route through Mongolia, while K19/K20 is faster and only travels between China and Russia.

Can passengers get off during the journey?
Yes. Travelers may stop at designated cities and continue later with the same ticket after verification.

Is there Chinese-speaking staff onboard?
Yes. The train is operated by Chinese railway services, and staff primarily speak Chinese.

Does the passport get stamped?
Yes. Both Mongolia and Russia entry/exit stamps are issued, which can be useful for future travel records.