Nakhonchai Air (VIP 24-seat)
VIP sleeper 24-seat, fully reclining
3-5x daily overnight
Bangkok to Chiang Mai is Thailand's most-travelled long-distance route. Buses depart from Mo Chit (Northern Bus Terminal, BKS 2) 06:00-22:00 daily, taking 9-11 hours via Highway 32/1. VIP sleeper coaches (24 seats, fully reclining) run overnight; standard AC buses run day. Sleeper train (from Hua Lamphong) takes 11-14h but is 2x the price. Nakhonchai Air, Green Bus + Sombat Tour are the reliable operators — avoid unbranded overnight buses which have a well-documented history of accidents + luggage theft.
AVOID buying tickets from Khao San Road agents — they resell tickets on unbranded overnight coaches at 3-4x markup. Book direct on 12go, Nakhonchai Air website, or at the Mo Chit terminal counter. Never leave valuables in the overhead compartment on overnight buses.
VIP sleeper 24-seat, fully reclining
3-5x daily overnight
VIP 24-seat + Gold Class 32-seat
Every 1-2h · 06:00-22:00
Gold VIP 32-seat
5-8x daily
Standard 40-seat AC
Live schedules + prices. Cancel free 24h before departure.
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Nakhonchai Air, Green Bus, and Sombat Tour are safe reliable operators used by hundreds of thousands annually. Avoid unbranded operators sold via Khao San Road agents — those have documented accident + theft histories. Book direct on 12go or at Mo Chit terminal.
VIP sleeper (Nakhonchai Air 24-seat): ฿1000-1400 ($28-40). Standard VIP (Green Bus, Sombat): ฿700-1100 ($20-32). Sleeper train: ฿700-1500 depending on class. Domestic flight (AirAsia, Nok Air): ฿1000-2500 booked in advance.
Bus wins on price + speed (9-11h vs 11-14h train). Train wins on romance + views (Northern Line follows the river through Lampang mountains) + safety (fewer overnight accidents). Sleeper Train 2nd-class AC is the tourist favourite at ฿881.
Chiang Mai Arcade Bus Terminal (Terminal 3) — 4 km east of Old City. Take a red songthaew (฿30) or Grab (฿80-120) to your hotel. Nakhonchai Air also drops at Terminal 2 near Warorot Market.