Trains & rail travel in Thailand: routes, sleepers & booking.

Why take the train in Thailand

Thailand has a country-spanning rail network run by the State Railway of Thailand (SRT), reaching from the northern hills near Chiang Mai down the long peninsula to the Malaysian border. For travellers it offers something flights cannot: a relaxed, ground-level way to watch the country roll past, city centre to city centre, at fares that are a fraction of anywhere in the West. The signature draw is the overnight sleeper — you board in the evening, settle into a berth and wake up hundreds of kilometres away, having saved a night’s hotel. Trains are slower than driving or flying, so they suit travellers who value the journey, the comfort and the experience over raw speed.

The lines: which routes go where

SRT’s long-distance network fans out from Bangkok along four main lines:

• Northern Line — Bangkok up through Ayutthaya, Phitsanulok and Lampang to Chiang Mai; the classic scenic sleeper route into the north.
• Northeastern (Isaan) Line — toward Nong Khai (the Laos border near Vientiane) and Ubon Ratchathani, serving Khorat, Khon Kaen and Udon Thani.
• Southern Line — the long run down the peninsula to Surat Thani (the gateway for Koh Samui & Koh Phangan), Hat Yai and on to the Malaysian border.
• Eastern Line — toward Chachoengsao and the eastern seaboard, including connections used for Pattaya and the Cambodia border at Aranyaprathet.

Ayutthaya is an easy, popular day trip by train, and the southern line is how many travellers reach the island ferries without flying. For getting to the station and around the capital, see our getting around Bangkok guide.

Train types & classes (how to read a timetable)

Two separate things decide your experience: the type of train (its speed and how often it stops) and the class of seat or berth you book.

Train types, fastest to slowest:

• Special Express & Express — the fastest, fewest stops, best carriages and the sleeper services; what you want for long distances.
• Rapid — more stops, slower, cheaper.
• Ordinary / Commuter — stops everywhere, cheapest, usually third-class only; for short local hops, not cross-country.

Classes:

• First class — private air-conditioned cabins, on premier overnight services only; the most comfortable and the priciest.
• Second class — the sweet spot: reclining seats by day, curtained upper/lower sleeper berths by night, in air-conditioned or fan carriages.
• Third class — basic bench seating, very cheap, fine for short daytime trips.

Sleeper trains: the overnight experience

The overnight sleeper is the heart of Thai rail travel. On a second-class air-conditioned sleeper the seats are made up into curtained berths in the evening, with a lower berth (slightly pricier, a window and a bit more room) and an upper berth (cheaper, cosier). You get bedding, there’s a dining or snack service, and you arrive rested the next morning. The premier Bangkok–Chiang Mai service and the long southern runs toward Surat Thani and Hat Yai use modern Chinese-built sleeper carriages that are a clear step up from the older rolling stock. For comfort and security most travellers pick a second-class air-conditioned lower berth; first-class private cabins are worth it if you want a door that locks and more space.

Bangkok’s stations: Krung Thep Aphiwat vs Hua Lamphong

The biggest newcomer trap isn’t the trains — it’s the station. Since 2023 most long-distance services moved out of the historic Hua Lamphong terminus:

• Krung Thep Aphiwat Central Terminal (a.k.a. Bang Sue Grand Station) — the huge new northern terminal that now handles most long-distance and sleeper departures; connects directly to the MRT Blue Line at Bang Sue.
• Hua Lamphong — the century-old central terminus near Chinatown; still used for some commuter and shorter services, and worth seeing, but no longer the main long-distance hub.

Always check the station name on your ticket and leave time to reach Krung Thep Aphiwat, which is well north of the old centre. The MRT makes it easy — see getting around Bangkok and Grab & ride-hailing.

Booking, fares & what to expect

Train vs plane vs bus: when rail wins

For crossing the whole country quickly, a budget flight is usually faster and can be similarly priced once you book ahead — Bangkok to Chiang Mai is 1h15 in the air versus 11–13 hours by rail. The train wins when the journey is the point: the comfort of a flat sleeper bed, the scenery, arriving in the city centre rather than an out-of-town airport, and saving a night’s accommodation on an overnight run. Buses are cheaper still and reach places the rails don’t, but they’re less comfortable for long hauls. In short — fly to arrive, take the train to travel, and use the bus where neither reaches.

Newcomer mistakes to avoid

Frequently asked