Cheapest€37.90
- Bangkok Airways BA920114:1855m15:13Bangkok BKKSiem Reap SAI
Door to door 4h 5mCO2 92.7 kgChanges 0Fixed, no changes
Bangkok to Siem Reap flight
Flights from Bangkok to Siem Reap start at €43.80 and take 4h 4m at their fastest.
Check dates and fares
Fares and seats move by the day. Price Bangkok to Siem Reap on the date you actually want, rather than on the date this page was built.
The Flights from Bangkok to Siem Reap starts at €43.80 and takes 4h 4m door to door, run by 2 operators over 377 km, with around 5 departures a day. Fares bottom out about 30 days before departure.
- 4h 4mDoor to door
- 54mMoving
- €43.80 to €74.48From
- 06:05 to 14:49First and last departure
- 5Per day
- 92.7 kgCO2
First and last are taken from the services we sell on September 29, 2026. The return direction keeps its own timetable and is not these times reversed.
€43.80 to €74.48 for one passenger across the 14 departure dates priced here. The low end is one day, not every day. Worked out from this corridor rather than held for anybody. The operator sets the price on the day.
Fares by date
What this journey usually costs, by departure date. It shows which days run dearer.
Typical fares
- about €68.58Tue15
- about €74.48Wed16
- about €73.30Thu17
- about €72.12Fri18
- about €66.81Sat19
- about €65.04Sun20
- about €43.80Mon21
- about €46.75Tue22
- about €46.75Wed23
- about €65.63Thu24
- about €56.19Fri25
- about €53.83Sat26
- about €50.29Sun27
- about €43.80Mon28
Based on what this route has cost recently. The operator sets the price on the day, and the live fare is confirmed when you book.
The cheapest and the fastest on September 29, 2026
Fastest€47.34
- Thai AirAsia TA514814:4954m15:43Bangkok DMKSiem Reap SAI
Door to door 4h 4mCO2 92.7 kgChanges 0Fixed, no changes
Airlines
| Operator | From | Fastest |
|---|---|---|
| Thai AirAsia | €41.44 | 4h 4m |
 Bangkok Airways | €37.90 | 4h 3m |
The flight gets you into Siem Reap. It does not get you a bed, and neither do we.
A room in Siem Reap for the night the flight gets in
Sort by distance from Giant Ibis Transport Siem Reap Bus Terminal and you can see which places are ten minutes on foot and which are not.
Search Siem Reap 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 Bangkok to Siem Reap
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €51.4790 days
- €34.9560 days
- €39.6745 days
- €34.3630 days
- €43.8021 days
- €43.8014 days
- €43.807 days
- €73.303 days
- €68.581 days
- Cheapest lead time
- Fares bottom out around 30 days ahead, at €34.36.
- How much it moves
- The gap between the cheapest and most expensive lead time is 113 percent. The most expensive point is €73.30, 3 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.
- €50.29Sun
- €43.80Mon
- €46.75Tue
- €46.75Wed
- €65.63Thu
- €56.19Fri
- €53.83Sat
Where you leave from and where you arrive
Bangkok
Air
- BKK
- DMK
Siem Reap
Air
- SAI
What the journey actually looks like
- Direct or connecting
- 80% of the services we sell on this corridor run through without a change. The remaining 20% involve one connection.
- How far it really runs
- The route covers 377 km against 366 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Phnom Penh. The gap between arriving and leaving is 76 minutes, of which about 14 is walking.
- If the connection is missed
- The tightest connection we sell here has a 13 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 Bangkok at 06:05 and the last at 14:49, across 5 departures The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Bangkok to Siem Reap
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 Flight from Bangkok to Siem Reap take?
The Flight from Bangkok to Siem Reap takes 4h 4m door to door, of which 54m is spent moving. The route runs 377 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 Flight from Bangkok to Siem Reap cost?
The Flight from Bangkok to Siem Reap starts at €43.80 for one passenger, as of September 14, 2026. A typical fare is €47.34. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Bangkok to Siem Reap?
2 operators run the Flight from Bangkok to Siem Reap: Thai AirAsia, Bangkok Airways. Between them they file around 5 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 Flight from Bangkok to Siem Reap use?
The Flight from Bangkok to Siem Reap leaves from Bangkok DMK and arrives at Siem Reap SAI. Allow about 3h 10m 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 Flight from Bangkok to Siem Reap?
Fares for the Flight from Bangkok to Siem Reap bottom out around 30 days ahead, at €34.36. The gap between the cheapest and most expensive lead time across the window is 113 percent, measured on September 14, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Bangkok to Siem Reap produce?
The Flight from Bangkok to Siem Reap produces about 92.7 kg of CO2 per passenger over 377 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Where no operator publishes a fare for a corridor, the price here is our own estimate, worked out from the real distance and the real operator through a fare curve that follows lead time, day of the week and season. It tells you roughly what the journey costs. It is not a seat anyone has agreed to sell, and the payment step will not take it.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Bangkok to Siem Reap on September 14, 2026: 377 km of route against 366 km in a straight line, 5 services a day, 2 operators a cheapest fare of €43.80, and 4h 4m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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The fare from SAI into Siem Reap is the one price on this trip we cannot show you, because it is not ours.
A car waiting when you land in Siem Reap
Settled in advance, so the ride into Siem Reap costs what it said it would rather than what the cab stand says.
Book a ride from SAI with Daytrip
Partner links. We do not operate transfers. We earn a commission on a booking, and the fare is the same as going direct.