- Must visit
Khon Kaen National Museum
City museum in Khon Kaen presenting regional archaeology, local history, and cultural objects from northeastern Thailand.
Cheapest price on Sep 19
$24
Average ticket price on Sep 19
$26
Fastest journey on Sep 19
10 h 50 m
Average journey duration on Sep 19
11 h 15 m
Buses on Sep 19
6
Distance
609 km
The best way to find a cheap bus ticket from Bangkok to Khai Si is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Bangkok to Khai Si will cost around $26 if you buy it on the day, but the cheapest tickets can be found for only $24.
On Sat, Sep 19, we found 6 buses from Bangkok to Khai Si, including 6 direct services.
On Sat, Sep 19 the direct buses cover the 609 km distance in an average of 11 h 15 m but if you time it right, some buses will get you there in just 10 h 50 m .
On Sat, Sep 19 the slowest buses will take 11 h 45 m 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.










Omio recommends booking the bus as it is the most popular option from Bangkok to Khai Si among Omio's users. If you are prioritising price, take the bus, with an average ticket price of $26 For those with little time, consider booking a bus, which has an average total journey time of 12h 5m. Average ticket prices depend on the travel mode: a bus costs an average of $26, while a bus costs an average of $26.
Distance: 378 miles (609 km)
Most popular Bus | Driving |
|---|---|
$26 Average price Cheapest | $11 Average price (fuel + tolls) |
12h 5m Average total duration Fastest 11h 35m Onboard + 30m Additional time* | 10h 22m Average total duration (door-to-door) |
![]() Most popular bus company | Your own car or car rental |
Direct Options | Direct Options |
Tickets start at around $26 compared to roughly $11 in fuel and tolls — a saving of about $-14.97. The journey takes 11h 35m versus 10h 22m by car, so you'll arrive a bit later, but you can use the time productively rather than spending it behind the wheel. No parking to sort, no fuel stops, and most coaches have Wi-Fi and power outlets.
Driving is worth considering if you're on a tight schedule, travelling as a group (where fuel costs split several ways), or want the flexibility to stop along the way.
| Operator | Departure Time | Arrival Time | Duration | Departure days | Cheapest price |
|---|---|---|---|---|---|
Operator JK | Departure Time 01:15AM | Arrival Time 02:15PM | Duration 13h00 | Departure days Mon, Tue, Wed, Thu, Sun | Cheapest price $22 |
Operator JK | Departure Time 08:15AM | Arrival Time 09:15PM | Duration 13h00 | Departure days Fri | Cheapest price $24 |
Operator Lotus Phiboon Tour | Departure Time 11:30AM | Arrival Time 11:15PM | Duration 11h45 | Departure days Mon, Tue, Wed, Thu, Sun | Cheapest price $21 |
Operator Sawasdee Esan | Departure Time 06:15PM | Arrival Time 05:35AM | Duration 11h20 | Departure days Fri, Sat | Cheapest price $28 |
Operator Lotus Phiboon Tour | Departure Time 06:30PM | Arrival Time 06:15AM | Duration 11h45 | Departure days Fri, Sat | Cheapest price $24 |
Operator Lotus Phiboon Tour | Departure Time 07:00PM | Arrival Time 06:50AM | Duration 11h50 | Departure days Fri, Sat | Cheapest price $24 |
Operator Sawasdee Esan | Departure Time 07:45PM | Arrival Time 06:35AM | Duration 10h50 | Departure days Fri, Sat | Cheapest price $28 |
Operator Sawasdee Esan | Departure Time 08:55PM | Arrival Time 08:15AM | Duration 11h20 | Departure days Fri, Sat | Cheapest price $28 |
Operator Sawasdee Esan | Departure Time 09:00PM | Arrival Time 08:00AM | Duration 11h00 | Departure days Fri, Sat | Cheapest price $28 |
The table below shows live departures for Bangkok to Khai Si buses for tomorrow, Saturday, September 19. You can also manually refresh the results below to see updated bus journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 6:15 PM Bangkok, Chatuchak Bus Terminal (Mo Chit 2) | 11h20 | 5:35 AM Bueng Kan, Bus Terminal | 0 transfersDirect | |
![]() | 6:30 PM Bangkok, Chatuchak Bus Terminal (Mo Chit 2) | 11h45 | 6:15 AM Bueng Kan, Bus Terminal | 0 transfersDirect | |
![]() | 7:00 PM Bangkok, Chatuchak Bus Terminal (Mo Chit 2) | 11h50 | 6:50 AM Bueng Kan, Bus Terminal | 0 transfersDirect | |
![]() | 7:45 PM Bangkok, Chatuchak Bus Terminal (Mo Chit 2) | 10h50 | 6:35 AM Bueng Kan, Bus Terminal | 0 transfersDirect | |
![]() | 8:55 PM Bangkok, Chatuchak Bus Terminal (Mo Chit 2) | 11h20 | 8:15 AM Bueng Kan, Bus Terminal | 0 transfersDirect | |
![]() | 9:00 PM Bangkok, Chatuchak Bus Terminal (Mo Chit 2) | 11h00 | 8:00 AM Bueng Kan, Bus Terminal | 0 transfersDirect | |
This is the last bus of the day. | |||||
Find all the dates and times for this journey
Compare bus 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.
Buses from Bangkok to Khai Si run on average 7 times per day, taking around 11h 35m. Cheap bus tickets for this journey start at $24 if you book in advance.
There are 7 buses per day. The earliest bus runs at 15:45, the last at 18:00. The fastest bus covers the 378 miles (609 km) distance in 10h 50m.
Distance 378 miles (609 km) |
Average bus duration 11h 35m |
Cheapest ticket price $24 |
Buses per day 7 |
Direct buses 7 |
Fastest bus 10h 50m |
First bus 3:45 PM |
Last bus 6:00 PM |
Cheapest Month Oct |
Cheapest Day Sun |
High Season Jan - Mar |
Low Season Apr - Jun |
Discover the best of Khai Si — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Khai Si trip today.
City museum in Khon Kaen presenting regional archaeology, local history, and cultural objects from northeastern Thailand.
University museum with dinosaur fossils and earth science displays, popular for families and visitors interested in geology.
Art venue in Khon Kaen University featuring rotating exhibitions, student work, and contemporary cultural programming.
Large lake park in Khon Kaen with walking paths, sunset views, and a lively local atmosphere popular in the evenings.
Urban park and wetland area good for walking, exercise, and birdwatching, offering a greener side of nearby Khon Kaen.
Popular pedestrian-focused market street area known for shopping, performances, and local crafts on selected evenings.
Find answers to the most common questions about traveling from Bangkok to Khai Si 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 Khai Si, this guide helps you travel smarter and with confidence.

Most Bangkok to Khai Si buses use the Bangkok, Chatuchak Bus Terminal to Bueng Kan Bus Terminal station pair. Use this guide to compare Bangkok and Khai Si bus stations on this route, check city-centre transport, alongside checking practicalities like bus station facilities and services.
Bangkok, Chatuchak Bus Terminal is 8 km from Bangkok city centre. Public transport options include:
Bangkok, Chatuchak Bus Terminal has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC, and Ticket Office.
Food options include: Food court and various food stalls available inside terminal
Free Wi-Fi available throughout terminal. ATMs are several ATMs from major Thai banks.
Ticket office support is available at Bangkok, Chatuchak Bus Terminal.
Available at Bangkok, Chatuchak Bus Terminal: Parking, Taxis, WC.
Accessibility facilities are available at Bangkok, Chatuchak Bus Terminal: Wheelchair ramps and elevators available.
Here are some other resources that might have the information you need