Direct Numbers and Contacts for Major Bus Companies in Thailand: Expert Guide
Article written and verified by a Thailand travel expert, with practical experience in local transportation logistics and a good knowledge of local operators · Updated in 2026
Traveling in Thailand and need to quickly contact a bus company for a booking modification, urgent baggage information, or to handle an unforeseen event? Third-party booking platforms are often insufficient. Here is a reliable and up-to-date list of direct numbers and contacts for major bus companies in Thailand for 2026.
- The most reliable bus companies in Thailand are: Sombat Tour, Nakhonchai Air, Greenbus, and Transport Co., Ltd. (BKS).
- To contact them, prioritize calling by phone with the international dial code +66 for a quick response, even if English communication is not always guaranteed.
- Official websites are the most accurate source for detailed information and contact forms for non-urgent inquiries.
This expert guide provides you with direct contact details (phone, email, official website) to effectively resolve your transportation issues.
1. Which are the main reliable bus companies in Thailand?
Choosing a reliable bus company is essential for a smooth journey. Here are the most recognized operators for their service quality, punctuality, and vehicle comfort, offering more accessible contact information:
- Sombat Tour: Highly regarded for its VIP services and long-distance routes, especially to the North (Chiang Mai) and Northeast.
- Nakhonchai Air: Often considered premium, with excellent customer service and modern buses on key routes (e.g., Bangkok - Chiang Mai).
- Greenbus: The dominant operator in Northern Thailand, connecting cities like Chiang Mai, Chiang Rai, and Lampang.
- Transport Co., Ltd. (BKS): The national company, offering vast geographical coverage with various service classes.
- Cherdchai Tour (Lion Travel): Specializing in routes to the South (Phuket, Krabi) and East.
2. Phone Numbers for Bus Companies in Thailand (+66) and Service Hours
For direct and quick contact, phone numbers are the most effective option. Don't forget the international dial code +66 when calling from abroad or a mobile. Be prepared for communication mostly in Thai, although English may sometimes be possible.
| Company | Phone Number (+66) | Indicative Hours | Notes |
|---|---|---|---|
| Sombat Tour | +66 2 792 1444 | Approx. 06:00 AM - 10:00 PM (daily) | General customer service. Expect communication mostly in Thai. |
| Nakhonchai Air | +66 2 939 4999 | Approx. 06:00 AM - 11:00 PM (daily) | Good reputation for their support, sometimes available in English. |
| Greenbus | +66 53 266 480 | Approx. 07:00 AM - 08:00 PM (daily) | Northern operator. English-speaking agents are less common. |
| Transport Co., Ltd. (BKS) | +66 2 872 1777 or 1490 (local short number) | 24/7 for short line 1490 | The national company. 1490 is a faster information number. |
| Cherdchai Tour (Lion Travel) | +66 2 936 0009 | Approx. 06:00 AM - 08:00 PM (daily) | For routes to the East and South. |
3. Email Addresses and Direct Contact Forms for Companies
Direct email addresses for Thai bus companies are less common than phone numbers. Forms on official websites are often preferred for non-urgent inquiries (lost items, feedback, general information). For emergencies, the phone remains the best option.
| Company | Email / Form | Notes |
|---|---|---|
| Sombat Tour | Use the contact form on their official website. | No direct public email. The form is generally responsive for non-urgent inquiries. |
| Nakhonchai Air | info@nakhonchaiair.com | One of the few companies with a direct and often responsive email address. |
| Greenbus | Use the contact form on their official website. | Form should be prioritized for all written requests. |
| Transport Co., Ltd. (BKS) | Use the contact form on their official website. | The form is the most reliable option after phone for non-urgent inquiries. |
4. English or French-speaking Customer Service: What to Expect?
The language barrier is a legitimate concern. In Thailand, bus company customer service is predominantly in Thai. Here's what you can anticipate:
- Major companies (Sombat Tour, Nakhonchai Air): They are more likely to employ English-speaking staff, especially at main bus station counters like Mo Chit in Bangkok. On the phone, it will depend on the available agent, but you can politely ask “Do you speak English?” (พูดยาอังกฤษได้ไหม - pûut paa-sǎa ang-grìt dâi mái?).
- Local/regional operators (Greenbus, Cherdchai Tour): The chances of finding an English-speaking contact are lower. Prepare your questions in simple English or use a translation app.
- French-speaking service: French-speaking customer service is extremely rare, if not non-existent for local bus companies. It is strongly advised to communicate in English.
5. Official Bus Company Websites for Up-to-Date Information
Official websites are the most reliable source of information for schedules, fares, precise departure points, baggage policies, and the latest announcements. Always prioritize the root domain to avoid outdated or fraudulent third-party sites.
| Company | Official Website | Notes |
|---|---|---|
| Sombat Tour | sombattour.com | Primarily in Thai. Use your browser's translation function. |
| Nakhonchai Air | nakhonchaiair.com | Well-structured site, with a partial English version available. |
| Greenbus | greenbusthailand.com | Information is mainly in Thai for Northern routes. |
| Transport Co., Ltd. (BKS) | transport.co.th | The most comprehensive national site, offering an English version. |
| Cherdchai Tour (Lion Travel) | cherdchaiair.com | Information on routes to the South and East. |
For an overview of booking options and to cross-check information, aggregators like 12Go.asia or Baolau.com can be useful. They sometimes redirect to official websites.
6. Emergency Numbers and Specific Contacts for On-Site Problems
When faced with a major problem (accident, unexplained delay, lost item) in Thailand, it's crucial to know who to contact. Beyond bus companies, here are additional resources to be aware of:
Contact the company directly
Use the direct numbers provided above. For a lost item, be specific: describe the item (color, brand, contents), and provide your travel details (date, time, bus number, seat number).
Thai Emergency Numbers
In case of a serious accident or immediate danger: 191 for the police, 1669 for medical emergencies. For specifically tourist assistance (English-speaking staff), dial 1155 (Tourist Police).
Embassy or Consulate
For serious situations requiring consular assistance, contact the French Embassy in Thailand. Their contact details are available on the Ministry of Europe and Foreign Affairs website.
For information on booking and where and how to buy your bus tickets in Thailand with peace of mind, consult our detailed guide.
🏆 Specialist Verdict: Our Recommendations for Successful Contact
Questions fréquentes
Can I contact a Thai bus company in English?
Yes, some major companies like Nakhonchai Air or Sombat Tour may have English-speaking staff, especially at counters in large bus terminals or during phone calls at peak hours. However, there is no guarantee. It is recommended to prepare your questions in simple English or use a translation app.
What if I cannot find my booking number on the company's website?
If you booked through a third-party platform (like 12Go.asia or Baolau), first check their confirmation emails for a company-specific reference or ticket number. If that doesn't work, contact the booking platform's support. As a last resort, contact the bus company directly by phone, providing all your purchase information (full name, travel date, destination, time) so they can locate your record.
Is there a single number for all bus companies in Thailand?
No, there is no single, centralized contact number for all bus companies in Thailand. Each private operator has its own contact details. The national company, Transport Co., Ltd. (BKS), has a short number (1490) for general information, but it is essential to contact the company you booked with directly for any specific questions about your ticket or journey.
How do I change my bus booking in Thailand?
The modification procedure depends on the company and the booking channel. If you booked through a third-party site, you will need to go through their customer service. If you booked directly with the company, contact them by phone with your booking number and the desired changes. Modification fees may apply, and last-minute changes may be limited.
What should I do if there is a problem with my bus (delay, lost item)?
In case of a significant delay without information, first contact the bus company by phone. For a lost item, call the company as soon as possible, detailing the item and your journey. If you are at the station, go directly to the company's counter. In case of a serious emergency, contact Thai emergency services (Tourist Police at 1155) or your embassy/consulate.