The cheapest and fastest buses from Bangkok to Si Thoi
Cheapest price
$21
Average price
$25
Fastest journey
9 h 45 m
Average duration
9 h 53 m
Buses per day
2
Distance
629 km
The best way to find a cheap bus ticket from Bangkok to Si Thoi is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Bangkok to Si Thoi will cost around $25 if you buy it on the day, but the cheapest tickets can be found for only $21.
Of the 2 buses that leave Bangkok for Si Thoi on Mon, Mar 23, 2 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Mon, Mar 23 the direct buses cover the 629 km distance in an average of 9 h 53 m but if you time it right, some buses will get you there in just 9 h 45 m .
On Mon, Mar 23 the slowest buses will take 10 h and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.




Travel Information
Compare bus and flight for Bangkok to Si Thoi
Omio recommends booking the flight as it is the most popular option from Bangkok to Si Thoi among Omio's users. If you are prioritising price take the bus with prices starting from $20. For those with little time consider booking a flight which can get you there in 1h 21m. The ticket price range depends on the travel mode: a bus costs an average of $20, and a flight costs an average of $27.
Distance: 390 miles (629 km)
Compare bus with
| Bus | Most popular Flight |
|---|---|
$21 Average price Cheapest | $55 Average price |
10h 19m Average total duration 9h 49m Onboard + 30m Additional time* | 4h 21m Average total duration Fastest 1h 21m Onboard + 3h 0m Additional time* |
Direct Options | Direct Options |
Bangkok to Si Thoi Bus Timetables
| Operator | Departure Time | Arrival Time | Duration | Departure days | Cheapest price |
|---|---|---|---|---|---|
Operator Budsarakham | Departure Time 05:00PM | Arrival Time 03:45AM | Duration 10h45 | Departure days Tue, Sun | Cheapest price $24 |
Operator Cherdchai Tour | Departure Time 05:30PM | Arrival Time 03:15AM | Duration 9h45 | Departure days Tue, Sun | Cheapest price $20 |
Operator Kasemthara Tour | Departure Time 06:40PM | Arrival Time 05:40AM | Duration 11h00 | Departure days Tue, Sun | Cheapest price $24 |
Operator Cherdchai Tour | Departure Time 07:30PM | Arrival Time 05:30AM | Duration 10h00 | Departure days Tue, Sun | Cheapest price $20 |
Operator Thaibus Tour | Departure Time 07:35PM | Arrival Time 05:25AM | Duration 9h50 | Departure days Tue, Sun | Cheapest price $20 |
Operator Budsarakham | Departure Time 07:40PM | Arrival Time 06:25AM | Duration 10h45 | Departure days Tue, Sun | Cheapest price $24 |
Live departures
Bangkok to Si Thoi bus times
The table below shows live departures for Bangkok to Si Thoi buses for tomorrow, Sunday, March 22. You can also manually refresh the results below to see updated bus journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 12:30 PM Bangkok | 9h45 | 10:15 PM Si Thoi | 0 transfersDirect | |
![]() | 1:00 PM Bangkok | 10h00 | 11:00 PM Si Thoi | 0 transfersDirect | |
This is the last bus of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Bangkok to Si Thoi by bus or flight
Compare bus and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Mar 23
Mar 24
Mar 25
Mar 26
Mar 27
Mar 28
Mar 29
Why should you book Bangkok to Si Thoi buses with Omio?
Why book with Omio vs Cherdchai Tour?
- Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
- Compare all your options: Omio allows you to compare Cherdchai Tour with all available travel options, which are bus and flight to ensure you get the best deal for traveling from Bangkok to Si Thoi.
Why book with Omio over Checkmybus or Busbud?
- Multiple modes of transport: Omio allows you to compare travel options including bus and flight to find the ideal travel option from Bangkok to Si Thoi.
Journey information
Overview: Bus from Bangkok to Si Thoi
Buses from Bangkok to Si Thoi run on average 5 times per day, taking around 9h 49m. Cheap bus tickets for this journey start at $20 (€16) if you book in advance.
There are 5 buses per day. The earliest bus runs at 18:00, the last at 20:35. The fastest bus covers the 390 miles (629 km) distance in 9h 45m.
Distance 390 miles (629 km) |
Average bus duration 9h 49m |
Cheapest ticket price $20 (€16) |
Buses per day 5 |
Direct buses 5 |
Fastest bus 9h 45m |
First bus 18:00 |
Last bus 20:35 |
Cheapest month Jan |
Cheapest day Fri |
High season Apr - Jun |
Low season Jul - Sep |
Bus providers: Cherdchai Tour from Bangkok to Si ThoiYou can travel by bus between Bangkok to Si Thoi with Cherdchai Tour for as low as $20 (€16). When you search for schedules and tickets, Omio will show you the best journey
Cherdchai Tour
FAQs: Bus from Bangkok to Si Thoi
Find answers to the most common questions about traveling from Bangkok to Si Thoi by bus. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest bus, the cheapest option, or tips for making the most of your visit at Si Thoi, this guide helps you travel smarter and with confidence.

popular bus stations
Popular bus stations from Bangkok to Si Thoi
- 04:00-22:00
- Free Wi-Fi available throughout terminal
- Large parking area available for both short and long-term parking
- Food court and various food stalls available inside terminal
- Available at designated taxi stand outside terminal
- Wheelchair ramps and elevators available
- Public restrooms available with 5 THB fee
- BTS: Mo Chit Station
- MRT: Chatuchak Park Station
- Bus: 3, 26, 29, 34, 49, 52, 77
- 05:00-22:00
- Free Wi-Fi available throughout terminal
- Available at terminal parking lot, 20 baht per hour
- Food court and several local food vendors available inside terminal
- Available at designated taxi stand outside terminal
- Wheelchair ramps and elevators available
- Public restrooms available for 5 baht
- BTS: Mo Chit Station
- MRT: Chatuchak Park Station
- Bus: 3, 26, 77, 96, 104, 134, 136, 138, 145, 509, 522
- Local taxis available on demand
- Bus: Local buses to Phayao
- Available at the main road
Most popular bus connections from Bangkok
More options for your journey from Bangkok to Si Thoi
Here are some other resources that might have the information you need
