for me it’ll be my first, so you’re naturally more comfortable
I was comfortable from my very first trip to Thailand. I hadn’t booked anything at all—not even the first night in Bangkok, even though I arrived in the evening. Right after leaving Don Muang Airport (Suvarnabhumi didn’t exist yet), I didn’t take a taxi* but a regular city bus ("thamada," non-air-conditioned) to the Hualamphong area, where I stayed at the first guesthouse I found. The bus ride was long, so I used the time to learn how to count in Thai. All the travel info I needed was in the LP guidebook (which, back then, made *excellent* guides). These days, sites like Booking, 12Go, and others pressure you to book everything in advance, but the reality on the ground is totally different and easy—there are so many options (accommodations, buses) that traveling in Southeast Asia is super simple, even for beginners.
*Back then, taximeters didn’t exist. There were taxis, but nothing to distinguish them—it was a bit chaotic and risky in terms of scams.
The other advantage of booking is knowing the schedules. Do you know where to find public bus schedules, by the way?
Most of the time, you don’t even need to know the schedules because departures to every destination are so frequent. On top of the blue-and-white state buses, there are also private company buses you can take from the bus terminals. All in all, there’s usually an air-conditioned bus leaving at least every hour between Bangkok and most major cities, or every 3 hours for cross-country routes between the North and Northeast (Isan). So in 90% of cases, booking a bus is completely unnecessary—just show up at the bus terminal an hour* before departure and buy your ticket then. Over the past 15 years or so, minivans have also become popular (if you’re traveling light) for short and medium distances up to about 250 km.
And I’m not even counting the thamada buses here...
Exceptions:
- The direct Chiang Mai-Chiang Rai route, where Greenbus now seems to have a monopoly. Even though departures are fairly frequent, it’s better to book because this route is *very* busy. Luckily, there are some great indirect alternatives between these two cities (Tha Ton, Mae Salong, Phayao...).
- During festival periods (Songkran, Loy Krathong...), book ahead.
- A few days before and after an election day—book, because Thais travel even more than during festivals.
*Much less time if buses leave 3 or 4 times an hour.
State bus from Bangkok to Kanchanaburi, photographed at the bus terminal in the latter. Frequency: every 20 minutes (and that’s not counting the minivans leaving every 20-30 minutes from two different Bangkok bus terminals):
