Cheapest€30.98
- Office of Transport and Traffic Policy and Planning OT122006:479h 8m15:55Surat Thani (new) Bus Terminalอู่รังสิต
Door to door 9h 52mCO2 17.1 kgChanges 0Changeable for a fee
Surat Thani to Sai Mai bus
Buses from Surat Thani to Sai Mai start at €34.28 and take 9h 52m at their fastest.
The Buses from Surat Thani to Sai Mai starts at €34.28 and takes 9h 52m door to door, run by 2 operators over 633 km, with around 6 departures a day. Fares bottom out about 30 days before departure.
- 9h 52mDoor to door
- 9h 8mMoving
- €34.28From
- 17.1 kgCO2
The cheapest and the fastest on October 4, 2026
Two journeys we can sell today, with the service number each operator files them under.
Bus operators
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From |
|---|---|
| Green Bus Thailand | €34.28 |
 Office of Transport and Traffic Policy and Planning | €30.98 |
The bus gets you into Sai Mai. It does not get you a bed, and neither do we.
Where to stay in Sai Mai
Hotels and apartments near downtown, most of them with free cancellation, on a map that shows what is walkable.
Search Sai Mai on AgodaOr compare on Booking.com
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Surat Thani to Sai Mai
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €35.9390 days
- €37.5860 days
- €32.6345 days
- €28.2330 days
- €30.9821 days
- €35.9314 days
- €39.787 days
- €44.733 days
- €56.281 days
- Cheapest lead time
- Fares bottom out around 30 days ahead, at €28.23.
- How much it moves
- The gap between the cheapest and most expensive lead time is 99 percent. The most expensive point is €56.28, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 30 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €35.93Sun
- €34.28Mon
- €39.78Tue
- €35.38Wed
- €49.13Thu
- €48.58Fri
- €43.63Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Surat Thani
Bus
- Surat Thani (new) Bus Terminal
- Seatran
Sai Mai
Bus
- อู่รังสิต
- ท่าปล่อยรถ อู่รังสิต
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 33% of the services we sell on this corridor run through without a change. The remaining 67% involve one connection.
- How far it really runs
- The route covers 633 km against 550 km in a straight line, a detour of 15 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Hat Yai, Si Racha, Chon Buri, Kabin Buri. The gap between arriving and leaving is 62 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 15 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Surat Thani at 06:05 and the last at 07:30, across 6 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Surat Thani to Sai Mai
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Coach from Surat Thani to Sai Mai take?
The Coach from Surat Thani to Sai Mai takes 9h 52m door to door, of which 9h 8m is spent moving. The route runs 633 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Coach from Surat Thani to Sai Mai cost?
The Coach from Surat Thani to Sai Mai starts at €34.28 for one passenger, checked on September 13, 2026. A typical fare is €51.88. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Coach from Surat Thani to Sai Mai?
2 operators run the Coach from Surat Thani to Sai Mai: Green Bus Thailand, Office of Transport and Traffic Policy and Planning. Between them they file around 6 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Coach from Surat Thani to Sai Mai use?
The Coach from Surat Thani to Sai Mai leaves from Surat Thani (new) Bus Terminal and arrives at อู่รังสิต. Allow about 44m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Coach from Surat Thani to Sai Mai?
Fares for the Coach from Surat Thani to Sai Mai bottom out around 30 days ahead, at €28.23. The gap between the cheapest and most expensive lead time across the window is 99 percent, measured on September 13, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Coach from Surat Thani to Sai Mai produce?
The Coach from Surat Thani to Sai Mai produces about 17.1 kg of CO2 per passenger over 633 km, which works out at roughly 27 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
What is provided on board the Coach from Surat Thani to Sai Mai?
Operators on the Coach from Surat Thani to Sai Mai publish Power outlets, Restrooms, Wi-Fi. That is what 2 carriers on this corridor state about their own fleets, across a journey of 9h 52m door to door. Where a carrier publishes nothing, this page lists nothing for it.
Where these numbers come from
Derived from service area No carrier record names this exact pair. The operators listed publish a service area covering both places at a distance their mode plausibly carries people, which is evidence that the corridor is served and not evidence of a specific service. Pages state which, because presenting the two as the same thing would be dishonest.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Surat Thani to Sai Mai on September 13, 2026: 633 km of route against 550 km in a straight line, 6 services a day, 2 operators, a cheapest fare of €34.28, and 9h 52m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
Related journeys
Sai Mai to Surat Thani busCompare every mode from Surat Thani to Sai MaiChon Buri to Sai Mai busHat Yai to Sai Mai busKabin Buri to Sai Mai busLampang to Sai Mai busChon Buri to Sai Mai busHat Yai to Sai Mai busKabin Buri to Sai Mai busLampang to Sai Mai busSi Racha to Sai Mai busUdon Thani to Sai Mai busSi Racha to Sai Mai busUdon Thani to Sai Mai bus
The trip is the easy half to plan. The days in Sai Mai are the half people leave until last.
Things to do in Sai Mai
Timed entry, guided walks and half-day trips out of Sai Mai, with free cancellation on most of it.
See Sai Mai on KlookOr browse GetYourGuide
Partner links. We do not sell tours or tickets. We earn a commission on a booking, and it never changes the price.