# Bangkok to Chanthaburi: Go at the Weekend for the Gems, in Summer for the Durian

> **250–270 km and 3.5 to 4 hours** from Bangkok via Route 3. Two things should set your date rather than your departure time: the **gem market trades at weekends**, with Friday and Saturday mornings the busiest hours, and **durian season runs roughly April or May to July or August**, which is both the reason to come and the reason the roads are full of fruit trucks.

*Routes — 2026-11-12. Canonical page: https://www.pimstarter.com/journal/bangkok-to-chanthaburi-private-van.html*

## Key facts

- **Distance:** About 250 km (one guide); 270 km total (another), both via Route 3
- **Drive time:** 3–4 hours; one guide gives 3.5–4 hours
- **Real-world report:** A traveller described more than 4 hours of slow driving
- **By bus:** The Ekamai service can take about 5.5 hours
- **Gem market:** Weekends, "rain or shine"; busiest on Friday and Saturday mornings
- **Durian season:** Sources differ: April–June, May–August, and a Durian Festival typically May–July. Expect roughly April/May to July/August


## Pick the date before the time

Chanthaburi is a four-hour drive, so most people come for one specific reason — the gem trade, the fruit, the Catholic cathedral, or as a stop on the way to Trat and Koh Chang. Each of those has a calendar.

**What is open when**

| If you are coming for | Go | Note |
|---|---|---|
| The gem market | A weekend; Friday or Saturday morning is busiest | It runs rain or shine, but not midweek |
| Durian and tropical fruit | Roughly April/May to July/August | Sources differ on the exact window; the Durian Festival is typically May–July |
| A quiet town and the cathedral | Any weekday | The gem quarter is subdued midweek, which some people prefer |
| A break en route to Koh Chang | Any day | Chanthaburi sits roughly two-thirds of the way to Trat |

If the gem market is the point of the trip, a midweek arrival is a wasted four-hour drive each way. This is the most common planning error on this route, and it is entirely avoidable.


## The drive

Route 3 runs down the coast through Chonburi and Rayong before turning inland. Published figures put the journey at 3 to 4 hours for 250 to 270 km, and one traveller's account of more than four hours of slow driving is a useful corrective to the optimistic estimates. The bus from Ekamai takes about five and a half hours, which tells you how much of the time is stops rather than distance.

In durian season the roads around Chanthaburi carry a great deal of agricultural traffic — pickups and lorries moving fruit to market, often slowly and often stopping. Add half an hour in that window, and do not plan a tight connection at the far end.


## The gem market, practically

Chanthaburi has been a centre of the coloured-stone trade for generations, and the weekend market on and around Si Chan Road is a working trading floor rather than a tourist attraction. It draws traders from around the world, and it operates every weekend regardless of weather.

- **Friday and Saturday mornings** are when the real trading happens. By Sunday afternoon it is winding down.
- **It is a trade market.** Prices assume knowledge. People who do not know stones should go to look, not to buy.
- **Bring cash and patience.** Transactions are conducted the way they have been for decades.
- **A vehicle that waits** matters here — the market is spread over several streets and buildings, and you will not want to carry purchases around.


## Chanthaburi as a stop rather than a destination

The route to Trat and the Koh Chang ferry passes through, which makes Chanthaburi the natural lunch or overnight stop on a five-hour run to the coast. Breaking the journey here turns a hard drive into two comfortable ones, and it costs nothing extra on a charter. If you are heading for the [Ao Thammachat ferry](bangkok-to-trat-koh-chang-van.html), build the stop in — but keep the last-sailing arithmetic in mind, because a long lunch here is how people reach the pier after the last boat.


## Booking

1. Say **why you are going**. It sets the date more than the time does.
2. In fruit season, allow **extra time** for agricultural traffic.
3. If the gem market is the purpose, confirm you are travelling on a **Friday, Saturday or Sunday**.
4. If this is a stop en route to Koh Chang, say so — the ferry timetable then governs the whole day.

## Questions

### How long is the drive from Bangkok to Chanthaburi?

Three to four hours for about 250 to 270 km via Route 3, with one guide giving 3.5 to 4 hours. A traveller's account reports more than four hours of slow driving, and the Ekamai bus takes around five and a half hours.

### When is the Chanthaburi gem market open?

At weekends. It operates rain or shine, and Friday and Saturday mornings are the busiest trading hours. A midweek visit means a four-hour drive to a quiet street.

### When is durian season in Chanthaburi?

Sources differ. One gives April to June, another roughly May to August, and the Chanthaburi Durian Festival is typically held between May and July. Plan on roughly April or May through July or August, and check the festival dates for the year you are travelling.

### Is Chanthaburi a good stop on the way to Koh Chang?

Yes — it sits about two-thirds of the way to Trat, which turns a five-hour drive into two manageable legs. Keep the ferry's last sailing in mind, because a long stop here is how people arrive at the pier too late.

### Should I buy gems at the market?

Only if you know stones. It is a working trade market where prices assume expertise, not a tourist shop. Going to watch the trade is worthwhile in itself.

## Sources

- [Thaizer — Chanthaburi](https://www.thaizer.com/chantaburi/)
- [The Thailand Life — Chanthaburi travel guide](https://thethailandlife.com/chanthaburi-travel-guide)
- [Champion Traveler — best time to visit Chanthaburi](https://championtraveler.com/dates/best-time-to-visit-chanthaburi-th/)
- [12go — Chanthaburi travel](https://12go.asia/en/travel/chanthaburi)
- [Thailand Boat Tickets — guide to Chanthaburi](https://thailandboattickets.com/en/destinations/chanthaburi)