The cheapest and fastest buses from Mae Sai to Khai Si
Cheapest price
$57
Average price
$57
Fastest journey
18 h 30 m
Average duration
18 h 30 m
Buses per day
1
Distance
443 km
The best way to find a cheap bus ticket from Mae Sai 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 Mae Sai to Khai Si will cost around $57 if you buy it on the day, but the cheapest tickets can be found for only $57.
Of the 1 buses that leave Mae Sai for Khai Si on Thu, May 14, 1 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Thu, May 14 the direct buses cover the 443 km distance in an average of 18 h 30 m but if you time it right, some buses will get you there in just 18 h 30 m .
On Thu, May 14 the slowest buses will take 18 h 30 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.
8412:00 PM18h30Mae Sai, Mae Sai Bus Terminal8:30 AMBueng Kan, Bus Terminal$571One-way0 transfers
8412:00 PM18h30Mae Sai, Mae Sai Bus Terminal8:30 AMBueng Kan, Bus Terminal$571One-way0 transfers
Travel Information
Compare bus for Mae Sai to Khai Si
Omio recommends booking the bus as it is the most popular option from Mae Sai to Khai Si among Omio's users. If you are prioritising price take the bus with prices starting from $52. For those with little time consider booking a bus which can get you there in 18h 30m. The ticket price range depends on the travel mode: a bus costs an average of $52, and a bus costs an average of $52.
Distance: 275 miles (443 km)
Compare bus with
Most popular Bus | Driving |
|---|---|
$54 Average price Cheapest | $24 Average price (fuel + tolls) |
19h 0m Average total duration Fastest 18h 30m Onboard + 30m Additional time* | 14h 25m Average total duration (door-to-door) |
Direct Options | Direct Options |
You'll arrive about -5h -5m sooner (18h 30m by bus vs 14h 25m by car) and save roughly $-30.52 (€-24.42) compared to fuel and tolls ($54 (€43) vs $24 (€19)). You also skip the drive itself — no traffic stress, no parking, and you can use the time to work, nap, or catch up on a series with the onboard Wi-Fi.
Direct coaches are operated by Greenbus.
Driving is still worth considering if you're travelling with bulky luggage, need flexibility on departure times, or plan to stop along the way.
Mae Sai to Khai Si Bus Timetables
| Operator | Departure Time | Arrival Time | Duration | Departure days | Cheapest price |
|---|---|---|---|---|---|
Operator Greenbus | Departure Time 02:00PM | Arrival Time 08:30AM | Duration 18h30 | Departure days Thu | Cheapest price $57 |
Compare prices and tickets Mae Sai to Khai Si by bus
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.
May 14
May 15
May 16
May 17
May 18
May 19
May 20
Journey information
Overview: Bus from Mae Sai to Khai Si
Buses from Mae Sai to Khai Si run on average 1 times per day, taking around 18h 30m. Cheap bus tickets for this journey start at $52 (€41) if you book in advance.
There are 1 buses per day. The earliest bus runs at 07:00, the last at 07:00. The fastest bus covers the 275 miles (443 km) distance in 18h 30m.
Distance 275 miles (443 km) |
Average bus duration 18h 30m |
Cheapest ticket price $52 (€41) |
Buses per day 1 |
Direct buses 1 |
Fastest bus 18h 30m |
First bus 7:00 AM |
Last bus 7:00 AM |
Cheapest Month Apr |
Cheapest Day Mon |
High Season Apr - Jun |
Low Season Jul - Sep |
Bus providers: Greenbus from Mae Sai to Khai SiYou can travel by bus between Mae Sai to Khai Si with Greenbus for as low as $52 (€41). When you search for schedules and tickets, Omio will show you the best journey
Greenbus
FAQs: Bus from Mae Sai to Khai Si
Find answers to the most common questions about traveling from Mae Sai 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.

popular bus stations
Popular bus stations from Mae Sai to Khai Si
- 06:00-18:00
- Free parking available at the terminal
- Small local food stalls and vendors around the terminal
- Available at the terminal entrance
- Ground level access
- Basic facilities available
- Local songthaews and tuk-tuks
